0000796251 dtocm:C000000251Member 2026-02-01 2026-07-31 0000796251 dtocm:C000000252Member 2026-02-01 2026-07-31 0000796251 dtocm:C000000253Member 2026-02-01 2026-07-31 0000796251 dtocm:C000000254Member 2026-02-01 2026-07-31 0000796251 dtocm:C000223303Member 2026-02-01 2026-07-31 0000796251 dtocm:C000223304Member 2026-02-01 2026-07-31 0000796251 2026-02-01 2026-07-31 0000796251 dtocm:C000000251Member 2026-07-31 0000796251 dtocm:NetOtherAssetsAndLiabilitiesMember dtocm:C000000251Member 2026-07-31 0000796251 us-gaap:RepurchaseAgreementsMember dtocm:C000000251Member 2026-07-31 0000796251 us-gaap:USTreasuryBillSecuritiesMember dtocm:C000000251Member 2026-07-31 0000796251 dtocm:USTreasuryFloatingRateNotesMember dtocm:C000000251Member 2026-07-31 0000796251 us-gaap:USTreasuryNotesSecuritiesMember dtocm:C000000251Member 2026-07-31 0000796251 dtocm:C000000252Member 2026-07-31 0000796251 dtocm:NetOtherAssetsAndLiabilitiesMember dtocm:C000000252Member 2026-07-31 0000796251 us-gaap:RepurchaseAgreementsMember dtocm:C000000252Member 2026-07-31 0000796251 us-gaap:USTreasuryBillSecuritiesMember dtocm:C000000252Member 2026-07-31 0000796251 dtocm:USTreasuryFloatingRateNotesMember dtocm:C000000252Member 2026-07-31 0000796251 us-gaap:USTreasuryNotesSecuritiesMember dtocm:C000000252Member 2026-07-31 0000796251 dtocm:C000000253Member 2026-07-31 0000796251 dtocm:NetOtherAssetsAndLiabilitiesMember dtocm:C000000253Member 2026-07-31 0000796251 us-gaap:RepurchaseAgreementsMember dtocm:C000000253Member 2026-07-31 0000796251 us-gaap:USTreasuryBillSecuritiesMember dtocm:C000000253Member 2026-07-31 0000796251 dtocm:USTreasuryFloatingRateNotesMember dtocm:C000000253Member 2026-07-31 0000796251 us-gaap:USTreasuryNotesSecuritiesMember dtocm:C000000253Member 2026-07-31 0000796251 dtocm:C000000254Member 2026-07-31 0000796251 dtocm:NetOtherAssetsAndLiabilitiesMember dtocm:C000000254Member 2026-07-31 0000796251 us-gaap:RepurchaseAgreementsMember dtocm:C000000254Member 2026-07-31 0000796251 us-gaap:USTreasuryBillSecuritiesMember dtocm:C000000254Member 2026-07-31 0000796251 dtocm:USTreasuryFloatingRateNotesMember dtocm:C000000254Member 2026-07-31 0000796251 us-gaap:USTreasuryNotesSecuritiesMember dtocm:C000000254Member 2026-07-31 0000796251 dtocm:C000223303Member 2026-07-31 0000796251 dtocm:NetOtherAssetsAndLiabilitiesMember dtocm:C000223303Member 2026-07-31 0000796251 us-gaap:RepurchaseAgreementsMember dtocm:C000223303Member 2026-07-31 0000796251 us-gaap:USTreasuryBillSecuritiesMember dtocm:C000223303Member 2026-07-31 0000796251 dtocm:USTreasuryFloatingRateNotesMember dtocm:C000223303Member 2026-07-31 0000796251 us-gaap:USTreasuryNotesSecuritiesMember dtocm:C000223303Member 2026-07-31 0000796251 dtocm:C000223304Member 2026-07-31 0000796251 dtocm:NetOtherAssetsAndLiabilitiesMember dtocm:C000223304Member 2026-07-31 0000796251 us-gaap:RepurchaseAgreementsMember dtocm:C000223304Member 2026-07-31 0000796251 us-gaap:USTreasuryBillSecuritiesMember dtocm:C000223304Member 2026-07-31 0000796251 dtocm:USTreasuryFloatingRateNotesMember dtocm:C000223304Member 2026-07-31 0000796251 us-gaap:USTreasuryNotesSecuritiesMember dtocm:C000223304Member 2026-07-31 iso4217:USD pure dtocm:Holding 0.579 0.127 0.127 0.097 0.579 0.014 0.097 0.127 0.183 0.014 0.127 0.183 0.014 0.097 0.097 0.183 0.579 0.183 0.579 0.579 0.014 0.014 0.097 0.127 0.014 0.579 0.183 0.097 0.127 0.183 0000796251 false N-1A N-CSRS BNY Dreyfus Treasury Obligations Cash Management 2026-07-31 BNY Dreyfus Treasury Obligations Cash Management Institutional Shares DTRXX This semi-annual shareholder report contains important information about BNY Dreyfus Treasury Obligations Cash Management (the “Fund”) for the period of February 1, 2026 to July 31, 2026. semi-annual shareholder report You can find additional information about the Fund at<br/> <span style="text-decoration-line:underline;color:rgb(0, 0, 0);line-height:7.5pt;word-break:break-all;font-weight:400;font-family:'times new roman';font-size:10pt">www.dreyfus.com/products/mm.html#overview</span>. You can also request this information by calling 1-800-373-9387 (inside the U.S. only) or by sending an e-mail request to info@bny.com. www.dreyfus.com/products/mm.html#overview 1-800-373-9387 info@bny.com <div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:8pt;"> <b>This report describes changes to the Fund that occurred during the reporting period.</b> </div> <div style="margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:11pt;font-weight:bold;margin-bottom:2pt;"> <b>What were the Fund’s costs for the last </b> <b>six months</b> <b>?</b> </div><div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:3pt;">(based on a hypothetical $10,000 investment)</div><table style="width:100%;border-collapse:collapse;page-break-inside:avoid;break-inside:avoid"> <tr style="break-after:avoid;break-inside:avoid-page;page-break-inside:avoid;height:auto;background-color:rgb(0, 72, 94);border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 10pt; padding-left: 3pt; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); vertical-align: top; text-align: left; width: 25%;">Share Class</td> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 10pt; padding-left: 3pt; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); vertical-align: top; text-align: center; width: 30%;">Costs of a $10,000 investment</td> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 10pt; padding-left: 3pt; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); vertical-align: top; text-align: center; width: 40%;">Costs paid as a percentage of a $10,000 investment</td> </tr> <tr style="break-inside:avoid-page;page-break-inside:avoid;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial;background-color:rgb(227, 235, 237);height:19pt"> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 9pt; line-height: 9pt; vertical-align: top; text-align: left; text-indent: -6pt;">Institutional <span style="white-space:nowrap">Shares<sup style="vertical-align:super;font-size:5pt">*</sup></span></td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 9pt; line-height: 9pt; text-align: center; vertical-align: top;"><span style="float:none">$</span>9</td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt; white-space: nowrap; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 9pt; line-height: 9pt; text-align: center; vertical-align: top;">0.18<span>%</span><sup style="vertical-align:super;font-size:5pt">**</sup></td> </tr> </table><table style="width:100%;border-collapse:collapse;page-break-inside:avoid;break-inside:avoid;margin-bottom:22pt"> <tr style="break-inside:avoid-page;page-break-inside:avoid;height:auto;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-style: normal; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 5pt; line-height: normal; padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 10pt; text-align: left; vertical-align: super;">*</td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-family: 'Times New Roman'; font-size: 9pt; line-height: normal; font-style: normal; text-align: left; vertical-align: top; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0;"> <div style="font-weight:400;margin-top:0px;font-family:'times new roman';font-size:9pt;line-height:normal;font-style:normal;text-align:left;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;">During the period, fees were waived and/or expenses reimbursed pursuant to an agreement with the Fund’s investment adviser, BNY Mellon Investment Adviser, Inc. If this agreement is not extended in the future, expenses could be higher.</div></td> </tr> <tr style="break-inside:avoid-page;page-break-inside:avoid;height:auto;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-style: normal; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 5pt; line-height: normal; padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 10pt; text-align: left; vertical-align: super;">**</td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-family: 'Times New Roman'; font-size: 9pt; line-height: normal; font-style: normal; text-align: left; vertical-align: top; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0;"> <div style="font-weight:400;margin-top:0px;font-family:'times new roman';font-size:9pt;line-height:normal;font-style:normal;text-align:left;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;">Annualized.</div></td> </tr> </table> 9 0.0018 <div style="font-family:'times new roman';color:rgb(0, 0, 0);font-size:11pt;font-weight:bold;margin-top:0px;margin-bottom:0px;"> <b>KEY FUND STATISTICS (AS OF </b> <b>7/31/26</b> <b>)</b> </div><table style="width:100%;border-collapse:collapse;page-break-inside:avoid;break-inside:avoid"> <tr style="break-after:avoid;break-inside:avoid-page;page-break-inside:avoid;height:auto;background-color:rgb(0, 72, 94);border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); padding-top: 1pt; padding-bottom: 10pt; padding-right: 3pt; padding-left: 3pt; width: 170pt; vertical-align: top; text-align: center;"><br/> Fund Size (Millions)</td> <td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); padding-top: 1pt; padding-bottom: 10pt; padding-right: 3pt; padding-left: 3pt; width: 170pt; vertical-align: top; text-align: center;"><br/> Number of Holdings</td> </tr> <tr style="break-inside:avoid-page;page-break-inside:avoid;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial;background-color:rgb(227, 235, 237);height:19pt"> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-right: 3pt; padding-left: 3pt; padding-top: 1pt; width: 170pt; font-family: 'Times New Roman'; font-weight: normal; font-size: 9pt; line-height: 9pt; vertical-align: top; text-align: center; color: rgb(0, 0, 0); padding-bottom: 1pt; border-left-color: initial; border-left-style: none; border-left-width: initial;"><span style="float:none">$</span>56,093</td> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-right: 3pt; padding-left: 3pt; padding-top: 1pt; width: 170pt; font-family: 'Times New Roman'; font-weight: normal; font-size: 9pt; line-height: 9pt; vertical-align: top; text-align: center; color: rgb(0, 0, 0); padding-bottom: 1pt; border-left-color: initial; border-left-style: none; border-left-width: initial;">86</td> </tr> </table>

56093000000

86 <div style="margin-top:0px;text-transform:uppercase;margin-bottom:3pt;font-family:'times new roman';color:rgb(0, 0, 0);font-size:9pt;font-weight:bold;letter-spacing:0px;"> <b>Portfolio Holdings (as of </b> <b>7/31/26</b> <b>)</b> </div><div style="margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:9pt;font-weight:bold;letter-spacing:0px;text-transform:none;margin-bottom:0px;page-break-after:avoid;"> <b>Allocation of Holdings (Based on Net Assets)</b> </div><div style="font-family:'times new roman';font-size:9pt;font-weight:400;color:rgb(0, 0, 0);width:540pt;margin-bottom:12pt;margin-left:18pt;"> <img alt="Graphical Representation - Top N Holdings Chart" src="chartimages_12286912.jpg" style="margin-left: 50pt; width: 437pt;"/> </div> <div style="font-family:'times new roman';font-size:9pt;font-weight:400;color:rgb(0, 0, 0);width:540pt;margin-bottom:9pt;margin-left:18pt;"> <div style="font-family:'times new roman';font-size:9pt;font-weight:400;color:rgb(0, 0, 0);break-inside:avoid;"> <div style="font-family:'times new roman';color:rgb(0, 0, 0);font-size:11pt;font-weight:bold;margin-bottom:4pt;margin-top:0px;"> <b>How has the Fund changed?</b> </div> </div> <ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; counter-reset: numberedlisting 0 letteringlisting 0 letteredhead 0 lcrmnhead 0 ucletteredhead 0 ucrmnhead 0; break-inside: avoid;"> <li style="font-weight: 400; padding-left: 3pt; margin-left: 7pt; list-style-type: disc; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 10pt; line-height: 11pt; margin-bottom: 3pt;"> <div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:8pt;">Effective on May 29, 2026, the Fund and it’s registered investment company changed their name from Dreyfus Treasury Obligations Cash Management to BNY Dreyfus Treasury Obligations Cash Management.</div> </li> </ul> </div><div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:10pt;"> <b>This is a summary of certain changes to the Fund since </b> <b>February 1, 2026</b> <b>. For more complete information, you may review the Fund’s </b> <b>current prospectus dated </b> <b>June 1, 2026</b> <b> at </b> <span style="white-space:nowrap"> <span style="text-decoration-line:underline;color:rgb(0, 0, 0);line-height:8.5pt;word-break:break-all;font-weight:bold;font-family:'times new roman';font-size:10pt">www.dreyfus.com/products/mm.html#overview</span> </span> <b> or upon request at 1-800-373-9387.</b> </div> <div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:8pt;">Effective on May 29, 2026, the Fund and it’s registered investment company changed their name from Dreyfus Treasury Obligations Cash Management to BNY Dreyfus Treasury Obligations Cash Management.</div> 2026-05-29 <div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:10pt;"> <b>This is a summary of certain changes to the Fund since </b> <b>February 1, 2026</b> <b>. For more complete information, you may review the Fund’s </b> <b>current prospectus dated </b> <b>June 1, 2026</b> <b> at </b> <span style="white-space:nowrap"> <span style="text-decoration-line:underline;color:rgb(0, 0, 0);line-height:8.5pt;word-break:break-all;font-weight:bold;font-family:'times new roman';font-size:10pt">www.dreyfus.com/products/mm.html#overview</span> </span> <b> or upon request at 1-800-373-9387.</b> </div> www.dreyfus.com/products/mm.html#overview 1-800-373-9387 BNY Dreyfus Treasury Obligations Cash Management Investor Shares DTVXX This semi-annual shareholder report contains important information about BNY Dreyfus Treasury Obligations Cash Management (the “Fund”) for the period of February 1, 2026 to July 31, 2026. semi-annual shareholder report You can find additional information about the Fund at<br/> <span style="text-decoration-line:underline;color:rgb(0, 0, 0);line-height:7.5pt;word-break:break-all;font-weight:400;font-family:'times new roman';font-size:10pt">www.dreyfus.com/products/mm.html#overview</span>. You can also request this information by calling 1-800-373-9387 (inside the U.S. only) or by sending an e-mail request to info@bny.com. www.dreyfus.com/products/mm.html#overview 1-800-373-9387 info@bny.com <div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:8pt;"> <b>This report describes changes to the Fund that occurred during the reporting period.</b> </div> <div style="margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:11pt;font-weight:bold;margin-bottom:2pt;"> <b>What were the Fund’s costs for the last </b> <b>six months</b> <b>?</b> </div><div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:3pt;">(based on a hypothetical $10,000 investment)</div><table style="width:100%;border-collapse:collapse;page-break-inside:avoid;break-inside:avoid"> <tr style="break-after:avoid;break-inside:avoid-page;page-break-inside:avoid;height:auto;background-color:rgb(0, 72, 94);border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 10pt; padding-left: 3pt; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); vertical-align: top; text-align: left; width: 25%;">Share Class</td> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 10pt; padding-left: 3pt; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); vertical-align: top; text-align: center; width: 30%;">Costs of a $10,000 investment</td> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 10pt; padding-left: 3pt; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); vertical-align: top; text-align: center; width: 40%;">Costs paid as a percentage of a $10,000 investment</td> </tr> <tr style="break-inside:avoid-page;page-break-inside:avoid;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial;background-color:rgb(227, 235, 237);height:19pt"> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 9pt; line-height: 9pt; vertical-align: top; text-align: left; text-indent: -6pt;">Investor <span style="white-space:nowrap">Shares<sup style="vertical-align:super;font-size:5pt">*</sup></span></td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 9pt; line-height: 9pt; text-align: center; vertical-align: top;"><span style="float:none">$</span>21</td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt; white-space: nowrap; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 9pt; line-height: 9pt; text-align: center; vertical-align: top;">0.42<span>%</span><sup style="vertical-align:super;font-size:5pt">**</sup></td> </tr> </table><table style="width:100%;border-collapse:collapse;page-break-inside:avoid;break-inside:avoid;margin-bottom:22pt"> <tr style="break-inside:avoid-page;page-break-inside:avoid;height:auto;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-style: normal; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 5pt; line-height: normal; padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 10pt; text-align: left; vertical-align: super;">*</td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-family: 'Times New Roman'; font-size: 9pt; line-height: normal; font-style: normal; text-align: left; vertical-align: top; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0;"> <div style="font-weight:400;margin-top:0px;font-family:'times new roman';font-size:9pt;line-height:normal;font-style:normal;text-align:left;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;">During the period, fees were waived and/or expenses reimbursed pursuant to an agreement with the Fund’s investment adviser, BNY Mellon Investment Adviser, Inc. If this agreement is not extended in the future, expenses could be higher.</div></td> </tr> <tr style="break-inside:avoid-page;page-break-inside:avoid;height:auto;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-style: normal; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 5pt; line-height: normal; padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 10pt; text-align: left; vertical-align: super;">**</td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-family: 'Times New Roman'; font-size: 9pt; line-height: normal; font-style: normal; text-align: left; vertical-align: top; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0;"> <div style="font-weight:400;margin-top:0px;font-family:'times new roman';font-size:9pt;line-height:normal;font-style:normal;text-align:left;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;">Annualized.</div></td> </tr> </table> 21 0.0042 <div style="font-family:'times new roman';color:rgb(0, 0, 0);font-size:11pt;font-weight:bold;margin-top:0px;margin-bottom:0px;"> <b>KEY FUND STATISTICS (AS OF </b> <b>7/31/26</b> <b>)</b> </div><table style="width:100%;border-collapse:collapse;page-break-inside:avoid;break-inside:avoid"> <tr style="break-after:avoid;break-inside:avoid-page;page-break-inside:avoid;height:auto;background-color:rgb(0, 72, 94);border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); padding-top: 1pt; padding-bottom: 10pt; padding-right: 3pt; padding-left: 3pt; width: 170pt; vertical-align: top; text-align: center;"><br/> Fund Size (Millions)</td> <td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); padding-top: 1pt; padding-bottom: 10pt; padding-right: 3pt; padding-left: 3pt; width: 170pt; vertical-align: top; text-align: center;"><br/> Number of Holdings</td> </tr> <tr style="break-inside:avoid-page;page-break-inside:avoid;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial;background-color:rgb(227, 235, 237);height:19pt"> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-right: 3pt; padding-left: 3pt; padding-top: 1pt; width: 170pt; font-family: 'Times New Roman'; font-weight: normal; font-size: 9pt; line-height: 9pt; vertical-align: top; text-align: center; color: rgb(0, 0, 0); padding-bottom: 1pt; border-left-color: initial; border-left-style: none; border-left-width: initial;"><span style="float:none">$</span>56,093</td> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-right: 3pt; padding-left: 3pt; padding-top: 1pt; width: 170pt; font-family: 'Times New Roman'; font-weight: normal; font-size: 9pt; line-height: 9pt; vertical-align: top; text-align: center; color: rgb(0, 0, 0); padding-bottom: 1pt; border-left-color: initial; border-left-style: none; border-left-width: initial;">86</td> </tr> </table>

56093000000

86 <div style="margin-top:0px;text-transform:uppercase;margin-bottom:3pt;font-family:'times new roman';color:rgb(0, 0, 0);font-size:9pt;font-weight:bold;letter-spacing:0px;"> <b>Portfolio Holdings (as of </b> <b>7/31/26</b> <b>)</b> </div><div style="margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:9pt;font-weight:bold;letter-spacing:0px;text-transform:none;margin-bottom:0px;page-break-after:avoid;"> <b>Allocation of Holdings (Based on Net Assets)</b> </div><div style="font-family:'times new roman';font-size:9pt;font-weight:400;color:rgb(0, 0, 0);width:540pt;margin-bottom:12pt;margin-left:18pt;"> <img alt="Graphical Representation - Top N Holdings Chart" src="chartimages_12286963.jpg" style="margin-left: 50pt; width: 437pt;"/> </div> <div style="font-family:'times new roman';font-size:9pt;font-weight:400;color:rgb(0, 0, 0);width:540pt;margin-bottom:9pt;margin-left:18pt;"> <div style="font-family:'times new roman';font-size:9pt;font-weight:400;color:rgb(0, 0, 0);break-inside:avoid;"> <div style="font-family:'times new roman';color:rgb(0, 0, 0);font-size:11pt;font-weight:bold;margin-bottom:4pt;margin-top:0px;"> <b>How has the Fund changed?</b> </div> </div> <ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; counter-reset: numberedlisting 0 letteringlisting 0 letteredhead 0 lcrmnhead 0 ucletteredhead 0 ucrmnhead 0; break-inside: avoid;"> <li style="font-weight: 400; padding-left: 3pt; margin-left: 7pt; list-style-type: disc; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 10pt; line-height: 11pt; margin-bottom: 3pt;"> <div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:8pt;">Effective on May 29, 2026, the Fund and it’s registered investment company changed their name from Dreyfus Treasury Obligations Cash Management to BNY Dreyfus Treasury Obligations Cash Management.</div> </li> </ul> </div><div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:10pt;"> <b>This is a summary of certain changes to the Fund since </b> <b>February 1, 2026</b> <b>. For more complete information, you may review the Fund’s </b> <b>current prospectus dated </b> <b>June 1, 2026</b> <b> at </b> <span style="white-space:nowrap"> <span style="text-decoration-line:underline;color:rgb(0, 0, 0);line-height:8.5pt;word-break:break-all;font-weight:bold;font-family:'times new roman';font-size:10pt">www.dreyfus.com/products/mm.html#overview</span> </span> <b> or upon request at 1-800-373-9387.</b> </div> <div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:8pt;">Effective on May 29, 2026, the Fund and it’s registered investment company changed their name from Dreyfus Treasury Obligations Cash Management to BNY Dreyfus Treasury Obligations Cash Management.</div> 2026-05-29 <div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:10pt;"> <b>This is a summary of certain changes to the Fund since </b> <b>February 1, 2026</b> <b>. For more complete information, you may review the Fund’s </b> <b>current prospectus dated </b> <b>June 1, 2026</b> <b> at </b> <span style="white-space:nowrap"> <span style="text-decoration-line:underline;color:rgb(0, 0, 0);line-height:8.5pt;word-break:break-all;font-weight:bold;font-family:'times new roman';font-size:10pt">www.dreyfus.com/products/mm.html#overview</span> </span> <b> or upon request at 1-800-373-9387.</b> </div> www.dreyfus.com/products/mm.html#overview 1-800-373-9387 BNY Dreyfus Treasury Obligations Cash Management Administrative Shares DTAXX This semi-annual shareholder report contains important information about BNY Dreyfus Treasury Obligations Cash Management (the “Fund”) for the period of February 1, 2026 to July 31, 2026. semi-annual shareholder report You can find additional information about the Fund at<br/> <span style="text-decoration-line:underline;color:rgb(0, 0, 0);line-height:7.5pt;word-break:break-all;font-weight:400;font-family:'times new roman';font-size:10pt">www.dreyfus.com/products/mm.html#overview</span>. You can also request this information by calling 1-800-373-9387 (inside the U.S. only) or by sending an e-mail request to info@bny.com. www.dreyfus.com/products/mm.html#overview 1-800-373-9387 info@bny.com <div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:8pt;"> <b>This report describes changes to the Fund that occurred during the reporting period.</b> </div> <div style="margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:11pt;font-weight:bold;margin-bottom:2pt;"> <b>What were the Fund’s costs for the last </b> <b>six months</b> <b>?</b> </div><div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:3pt;">(based on a hypothetical $10,000 investment)</div><table style="width:100%;border-collapse:collapse;page-break-inside:avoid;break-inside:avoid"> <tr style="break-after:avoid;break-inside:avoid-page;page-break-inside:avoid;height:auto;background-color:rgb(0, 72, 94);border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 10pt; padding-left: 3pt; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); vertical-align: top; text-align: left; width: 25%;">Share Class</td> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 10pt; padding-left: 3pt; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); vertical-align: top; text-align: center; width: 30%;">Costs of a $10,000 investment</td> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 10pt; padding-left: 3pt; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); vertical-align: top; text-align: center; width: 40%;">Costs paid as a percentage of a $10,000 investment</td> </tr> <tr style="break-inside:avoid-page;page-break-inside:avoid;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial;background-color:rgb(227, 235, 237);height:19pt"> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 9pt; line-height: 9pt; vertical-align: top; text-align: left; text-indent: -6pt;">Administrative <span style="white-space:nowrap">Shares<sup style="vertical-align:super;font-size:5pt">*</sup></span></td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 9pt; line-height: 9pt; text-align: center; vertical-align: top;"><span style="float:none">$</span>14</td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt; white-space: nowrap; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 9pt; line-height: 9pt; text-align: center; vertical-align: top;">0.28<span>%</span><sup style="vertical-align:super;font-size:5pt">**</sup></td> </tr> </table><table style="width:100%;border-collapse:collapse;page-break-inside:avoid;break-inside:avoid;margin-bottom:22pt"> <tr style="break-inside:avoid-page;page-break-inside:avoid;height:auto;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-style: normal; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 5pt; line-height: normal; padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 10pt; text-align: left; vertical-align: super;">*</td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-family: 'Times New Roman'; font-size: 9pt; line-height: normal; font-style: normal; text-align: left; vertical-align: top; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0;"> <div style="font-weight:400;margin-top:0px;font-family:'times new roman';font-size:9pt;line-height:normal;font-style:normal;text-align:left;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;">During the period, fees were waived and/or expenses reimbursed pursuant to an agreement with the Fund’s investment adviser, BNY Mellon Investment Adviser, Inc. If this agreement is not extended in the future, expenses could be higher.</div></td> </tr> <tr style="break-inside:avoid-page;page-break-inside:avoid;height:auto;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-style: normal; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 5pt; line-height: normal; padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 10pt; text-align: left; vertical-align: super;">**</td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-family: 'Times New Roman'; font-size: 9pt; line-height: normal; font-style: normal; text-align: left; vertical-align: top; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0;"> <div style="font-weight:400;margin-top:0px;font-family:'times new roman';font-size:9pt;line-height:normal;font-style:normal;text-align:left;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;">Annualized.</div></td> </tr> </table> 14 0.0028 <div style="font-family:'times new roman';color:rgb(0, 0, 0);font-size:11pt;font-weight:bold;margin-top:0px;margin-bottom:0px;"> <b>KEY FUND STATISTICS (AS OF </b> <b>7/31/26</b> <b>)</b> </div><table style="width:100%;border-collapse:collapse;page-break-inside:avoid;break-inside:avoid"> <tr style="break-after:avoid;break-inside:avoid-page;page-break-inside:avoid;height:auto;background-color:rgb(0, 72, 94);border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); padding-top: 1pt; padding-bottom: 10pt; padding-right: 3pt; padding-left: 3pt; width: 170pt; vertical-align: top; text-align: center;"><br/> Fund Size (Millions)</td> <td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); padding-top: 1pt; padding-bottom: 10pt; padding-right: 3pt; padding-left: 3pt; width: 170pt; vertical-align: top; text-align: center;"><br/> Number of Holdings</td> </tr> <tr style="break-inside:avoid-page;page-break-inside:avoid;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial;background-color:rgb(227, 235, 237);height:19pt"> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-right: 3pt; padding-left: 3pt; padding-top: 1pt; width: 170pt; font-family: 'Times New Roman'; font-weight: normal; font-size: 9pt; line-height: 9pt; vertical-align: top; text-align: center; color: rgb(0, 0, 0); padding-bottom: 1pt; border-left-color: initial; border-left-style: none; border-left-width: initial;"><span style="float:none">$</span>56,093</td> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-right: 3pt; padding-left: 3pt; padding-top: 1pt; width: 170pt; font-family: 'Times New Roman'; font-weight: normal; font-size: 9pt; line-height: 9pt; vertical-align: top; text-align: center; color: rgb(0, 0, 0); padding-bottom: 1pt; border-left-color: initial; border-left-style: none; border-left-width: initial;">86</td> </tr> </table>

56093000000

86 <div style="margin-top:0px;text-transform:uppercase;margin-bottom:3pt;font-family:'times new roman';color:rgb(0, 0, 0);font-size:9pt;font-weight:bold;letter-spacing:0px;"> <b>Portfolio Holdings (as of </b> <b>7/31/26</b> <b>)</b> </div><div style="margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:9pt;font-weight:bold;letter-spacing:0px;text-transform:none;margin-bottom:0px;page-break-after:avoid;"> <b>Allocation of Holdings (Based on Net Assets)</b> </div><div style="font-family:'times new roman';font-size:9pt;font-weight:400;color:rgb(0, 0, 0);width:540pt;margin-bottom:12pt;margin-left:18pt;"> <img alt="Graphical Representation - Top N Holdings Chart" src="chartimages_12287167.jpg" style="margin-left: 50pt; width: 437pt;"/> </div> <div style="font-family:'times new roman';font-size:9pt;font-weight:400;color:rgb(0, 0, 0);width:540pt;margin-bottom:9pt;margin-left:18pt;"> <div style="font-family:'times new roman';font-size:9pt;font-weight:400;color:rgb(0, 0, 0);break-inside:avoid;"> <div style="font-family:'times new roman';color:rgb(0, 0, 0);font-size:11pt;font-weight:bold;margin-bottom:4pt;margin-top:0px;"> <b>How has the Fund changed?</b> </div> </div> <ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; counter-reset: numberedlisting 0 letteringlisting 0 letteredhead 0 lcrmnhead 0 ucletteredhead 0 ucrmnhead 0; break-inside: avoid;"> <li style="font-weight: 400; padding-left: 3pt; margin-left: 7pt; list-style-type: disc; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 10pt; line-height: 11pt; margin-bottom: 3pt;"> <div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:8pt;">Effective on May 29, 2026, the Fund and it’s registered investment company changed their name from Dreyfus Treasury Obligations Cash Management to BNY Dreyfus Treasury Obligations Cash Management.</div> </li> </ul> </div><div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:10pt;"> <b>This is a summary of certain changes to the Fund since </b> <b>February 1, 2026</b> <b>. For more complete information, you may review the Fund’s </b> <b>current prospectus dated </b> <b>June 1, 2026</b> <b> at </b> <span style="white-space:nowrap"> <span style="text-decoration-line:underline;color:rgb(0, 0, 0);line-height:8.5pt;word-break:break-all;font-weight:bold;font-family:'times new roman';font-size:10pt">www.dreyfus.com/products/mm.html#overview</span> </span> <b> or upon request at 1-800-373-9387.</b> </div> <div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:8pt;">Effective on May 29, 2026, the Fund and it’s registered investment company changed their name from Dreyfus Treasury Obligations Cash Management to BNY Dreyfus Treasury Obligations Cash Management.</div> 2026-05-29 <div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:10pt;"> <b>This is a summary of certain changes to the Fund since </b> <b>February 1, 2026</b> <b>. For more complete information, you may review the Fund’s </b> <b>current prospectus dated </b> <b>June 1, 2026</b> <b> at </b> <span style="white-space:nowrap"> <span style="text-decoration-line:underline;color:rgb(0, 0, 0);line-height:8.5pt;word-break:break-all;font-weight:bold;font-family:'times new roman';font-size:10pt">www.dreyfus.com/products/mm.html#overview</span> </span> <b> or upon request at 1-800-373-9387.</b> </div> www.dreyfus.com/products/mm.html#overview 1-800-373-9387 BNY Dreyfus Treasury Obligations Cash Management Participant Shares DTPXX This semi-annual shareholder report contains important information about BNY Dreyfus Treasury Obligations Cash Management (the “Fund”) for the period of February 1, 2026 to July 31, 2026. semi-annual shareholder report You can find additional information about the Fund at<br/> <span style="text-decoration-line:underline;color:rgb(0, 0, 0);line-height:7.5pt;word-break:break-all;font-weight:400;font-family:'times new roman';font-size:10pt">www.dreyfus.com/products/mm.html#overview</span>. You can also request this information by calling 1-800-373-9387 (inside the U.S. only) or by sending an e-mail request to info@bny.com. www.dreyfus.com/products/mm.html#overview 1-800-373-9387 info@bny.com <div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:8pt;"> <b>This report describes changes to the Fund that occurred during the reporting period.</b> </div> <div style="margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:11pt;font-weight:bold;margin-bottom:2pt;"> <b>What were the Fund’s costs for the last </b> <b>six months</b> <b>?</b> </div><div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:3pt;">(based on a hypothetical $10,000 investment)</div><table style="width:100%;border-collapse:collapse;page-break-inside:avoid;break-inside:avoid"> <tr style="break-after:avoid;break-inside:avoid-page;page-break-inside:avoid;height:auto;background-color:rgb(0, 72, 94);border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 10pt; padding-left: 3pt; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); vertical-align: top; text-align: left; width: 25%;">Share Class</td> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 10pt; padding-left: 3pt; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); vertical-align: top; text-align: center; width: 30%;">Costs of a $10,000 investment</td> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 10pt; padding-left: 3pt; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); vertical-align: top; text-align: center; width: 40%;">Costs paid as a percentage of a $10,000 investment</td> </tr> <tr style="break-inside:avoid-page;page-break-inside:avoid;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial;background-color:rgb(227, 235, 237);height:19pt"> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 9pt; line-height: 9pt; vertical-align: top; text-align: left; text-indent: -6pt;">Participant <span style="white-space:nowrap">Shares<sup style="vertical-align:super;font-size:5pt">*</sup></span></td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 9pt; line-height: 9pt; text-align: center; vertical-align: top;"><span style="float:none">$</span>28</td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt; white-space: nowrap; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 9pt; line-height: 9pt; text-align: center; vertical-align: top;">0.57<span>%</span><sup style="vertical-align:super;font-size:5pt">**</sup></td> </tr> </table><table style="width:100%;border-collapse:collapse;page-break-inside:avoid;break-inside:avoid;margin-bottom:22pt"> <tr style="break-inside:avoid-page;page-break-inside:avoid;height:auto;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-style: normal; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 5pt; line-height: normal; padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 10pt; text-align: left; vertical-align: super;">*</td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-family: 'Times New Roman'; font-size: 9pt; line-height: normal; font-style: normal; text-align: left; vertical-align: top; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0;"> <div style="font-weight:400;margin-top:0px;font-family:'times new roman';font-size:9pt;line-height:normal;font-style:normal;text-align:left;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;">During the period, fees were waived and/or expenses reimbursed pursuant to an agreement with the Fund’s investment adviser, BNY Mellon Investment Adviser, Inc. If this agreement is not extended in the future, expenses could be higher.</div></td> </tr> <tr style="break-inside:avoid-page;page-break-inside:avoid;height:auto;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-style: normal; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 5pt; line-height: normal; padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 10pt; text-align: left; vertical-align: super;">**</td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-family: 'Times New Roman'; font-size: 9pt; line-height: normal; font-style: normal; text-align: left; vertical-align: top; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0;"> <div style="font-weight:400;margin-top:0px;font-family:'times new roman';font-size:9pt;line-height:normal;font-style:normal;text-align:left;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;">Annualized.</div></td> </tr> </table> 28 0.0057 <div style="font-family:'times new roman';color:rgb(0, 0, 0);font-size:11pt;font-weight:bold;margin-top:0px;margin-bottom:0px;"> <b>KEY FUND STATISTICS (AS OF </b> <b>7/31/26</b> <b>)</b> </div><table style="width:100%;border-collapse:collapse;page-break-inside:avoid;break-inside:avoid"> <tr style="break-after:avoid;break-inside:avoid-page;page-break-inside:avoid;height:auto;background-color:rgb(0, 72, 94);border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); padding-top: 1pt; padding-bottom: 10pt; padding-right: 3pt; padding-left: 3pt; width: 170pt; vertical-align: top; text-align: center;"><br/> Fund Size (Millions)</td> <td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); padding-top: 1pt; padding-bottom: 10pt; padding-right: 3pt; padding-left: 3pt; width: 170pt; vertical-align: top; text-align: center;"><br/> Number of Holdings</td> </tr> <tr style="break-inside:avoid-page;page-break-inside:avoid;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial;background-color:rgb(227, 235, 237);height:19pt"> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-right: 3pt; padding-left: 3pt; padding-top: 1pt; width: 170pt; font-family: 'Times New Roman'; font-weight: normal; font-size: 9pt; line-height: 9pt; vertical-align: top; text-align: center; color: rgb(0, 0, 0); padding-bottom: 1pt; border-left-color: initial; border-left-style: none; border-left-width: initial;"><span style="float:none">$</span>56,093</td> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-right: 3pt; padding-left: 3pt; padding-top: 1pt; width: 170pt; font-family: 'Times New Roman'; font-weight: normal; font-size: 9pt; line-height: 9pt; vertical-align: top; text-align: center; color: rgb(0, 0, 0); padding-bottom: 1pt; border-left-color: initial; border-left-style: none; border-left-width: initial;">86</td> </tr> </table>

56093000000

86 <div style="margin-top:0px;text-transform:uppercase;margin-bottom:3pt;font-family:'times new roman';color:rgb(0, 0, 0);font-size:9pt;font-weight:bold;letter-spacing:0px;"> <b>Portfolio Holdings (as of </b> <b>7/31/26</b> <b>)</b> </div><div style="margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:9pt;font-weight:bold;letter-spacing:0px;text-transform:none;margin-bottom:0px;page-break-after:avoid;"> <b>Allocation of Holdings (Based on Net Assets)</b> </div><div style="font-family:'times new roman';font-size:9pt;font-weight:400;color:rgb(0, 0, 0);width:540pt;margin-bottom:12pt;margin-left:18pt;"> <img alt="Graphical Representation - Top N Holdings Chart" src="chartimages_12287014.jpg" style="margin-left: 50pt; width: 437pt;"/> </div> <div style="font-family:'times new roman';font-size:9pt;font-weight:400;color:rgb(0, 0, 0);width:540pt;margin-bottom:9pt;margin-left:18pt;"> <div style="font-family:'times new roman';font-size:9pt;font-weight:400;color:rgb(0, 0, 0);break-inside:avoid;"> <div style="font-family:'times new roman';color:rgb(0, 0, 0);font-size:11pt;font-weight:bold;margin-bottom:4pt;margin-top:0px;"> <b>How has the Fund changed?</b> </div> </div> <ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; counter-reset: numberedlisting 0 letteringlisting 0 letteredhead 0 lcrmnhead 0 ucletteredhead 0 ucrmnhead 0; break-inside: avoid;"> <li style="font-weight: 400; padding-left: 3pt; margin-left: 7pt; list-style-type: disc; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 10pt; line-height: 11pt; margin-bottom: 3pt;"> <div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:8pt;">Effective on May 29, 2026, the Fund and it’s registered investment company changed their name from Dreyfus Treasury Obligations Cash Management to BNY Dreyfus Treasury Obligations Cash Management.</div> </li> </ul> </div><div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:10pt;"> <b>This is a summary of certain changes to the Fund since </b> <b>February 1, 2026</b> <b>. For more complete information, you may review the Fund’s </b> <b>current prospectus dated </b> <b>June 1, 2026</b> <b> at </b> <span style="white-space:nowrap"> <span style="text-decoration-line:underline;color:rgb(0, 0, 0);line-height:8.5pt;word-break:break-all;font-weight:bold;font-family:'times new roman';font-size:10pt">www.dreyfus.com/products/mm.html#overview</span> </span> <b> or upon request at 1-800-373-9387.</b> </div> <div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:8pt;">Effective on May 29, 2026, the Fund and it’s registered investment company changed their name from Dreyfus Treasury Obligations Cash Management to BNY Dreyfus Treasury Obligations Cash Management.</div> 2026-05-29 <div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:10pt;"> <b>This is a summary of certain changes to the Fund since </b> <b>February 1, 2026</b> <b>. For more complete information, you may review the Fund’s </b> <b>current prospectus dated </b> <b>June 1, 2026</b> <b> at </b> <span style="white-space:nowrap"> <span style="text-decoration-line:underline;color:rgb(0, 0, 0);line-height:8.5pt;word-break:break-all;font-weight:bold;font-family:'times new roman';font-size:10pt">www.dreyfus.com/products/mm.html#overview</span> </span> <b> or upon request at 1-800-373-9387.</b> </div> www.dreyfus.com/products/mm.html#overview 1-800-373-9387 BNY Dreyfus Treasury Obligations Cash Management Wealth Shares DTKXX This semi-annual shareholder report contains important information about BNY Dreyfus Treasury Obligations Cash Management (the “Fund”) for the period of February 1, 2026 to July 31, 2026. semi-annual shareholder report You can find additional information about the Fund at<br/> <span style="text-decoration-line:underline;color:rgb(0, 0, 0);line-height:7.5pt;word-break:break-all;font-weight:400;font-family:'times new roman';font-size:10pt">www.dreyfus.com/products/mm.html#overview</span>. You can also request this information by calling 1-800-373-9387 (inside the U.S. only) or by sending an e-mail request to info@bny.com. www.dreyfus.com/products/mm.html#overview 1-800-373-9387 info@bny.com <div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:8pt;"> <b>This report describes changes to the Fund that occurred during the reporting period.</b> </div> <div style="margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:11pt;font-weight:bold;margin-bottom:2pt;"> <b>What were the Fund’s costs for the last </b> <b>six months</b> <b>?</b> </div><div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:3pt;">(based on a hypothetical $10,000 investment)</div><table style="width:100%;border-collapse:collapse;page-break-inside:avoid;break-inside:avoid"> <tr style="break-after:avoid;break-inside:avoid-page;page-break-inside:avoid;height:auto;background-color:rgb(0, 72, 94);border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 10pt; padding-left: 3pt; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); vertical-align: top; text-align: left; width: 25%;">Share Class</td> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 10pt; padding-left: 3pt; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); vertical-align: top; text-align: center; width: 30%;">Costs of a $10,000 investment</td> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 10pt; padding-left: 3pt; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); vertical-align: top; text-align: center; width: 40%;">Costs paid as a percentage of a $10,000 investment</td> </tr> <tr style="break-inside:avoid-page;page-break-inside:avoid;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial;background-color:rgb(227, 235, 237);height:19pt"> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 9pt; line-height: 9pt; vertical-align: top; text-align: left; text-indent: -6pt;">Wealth <span style="white-space:nowrap">Shares<sup style="vertical-align:super;font-size:5pt">*</sup></span></td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 9pt; line-height: 9pt; text-align: center; vertical-align: top;"><span style="float:none">$</span>21</td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt; white-space: nowrap; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 9pt; line-height: 9pt; text-align: center; vertical-align: top;">0.43<span>%</span><sup style="vertical-align:super;font-size:5pt">**</sup></td> </tr> </table><table style="width:100%;border-collapse:collapse;page-break-inside:avoid;break-inside:avoid;margin-bottom:22pt"> <tr style="break-inside:avoid-page;page-break-inside:avoid;height:auto;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-style: normal; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 5pt; line-height: normal; padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 10pt; text-align: left; vertical-align: super;">*</td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-family: 'Times New Roman'; font-size: 9pt; line-height: normal; font-style: normal; text-align: left; vertical-align: top; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0;"> <div style="font-weight:400;margin-top:0px;font-family:'times new roman';font-size:9pt;line-height:normal;font-style:normal;text-align:left;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;">During the period, fees were waived and/or expenses reimbursed pursuant to an agreement with the Fund’s investment adviser, BNY Mellon Investment Adviser, Inc. If this agreement is not extended in the future, expenses could be higher.</div></td> </tr> <tr style="break-inside:avoid-page;page-break-inside:avoid;height:auto;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-style: normal; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 5pt; line-height: normal; padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 10pt; text-align: left; vertical-align: super;">**</td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-family: 'Times New Roman'; font-size: 9pt; line-height: normal; font-style: normal; text-align: left; vertical-align: top; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0;"> <div style="font-weight:400;margin-top:0px;font-family:'times new roman';font-size:9pt;line-height:normal;font-style:normal;text-align:left;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;">Annualized.</div></td> </tr> </table> 21 0.0043 <div style="font-family:'times new roman';color:rgb(0, 0, 0);font-size:11pt;font-weight:bold;margin-top:0px;margin-bottom:0px;"> <b>KEY FUND STATISTICS (AS OF </b> <b>7/31/26</b> <b>)</b> </div><table style="width:100%;border-collapse:collapse;page-break-inside:avoid;break-inside:avoid"> <tr style="break-after:avoid;break-inside:avoid-page;page-break-inside:avoid;height:auto;background-color:rgb(0, 72, 94);border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); padding-top: 1pt; padding-bottom: 10pt; padding-right: 3pt; padding-left: 3pt; width: 170pt; vertical-align: top; text-align: center;"><br/> Fund Size (Millions)</td> <td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); padding-top: 1pt; padding-bottom: 10pt; padding-right: 3pt; padding-left: 3pt; width: 170pt; vertical-align: top; text-align: center;"><br/> Number of Holdings</td> </tr> <tr style="break-inside:avoid-page;page-break-inside:avoid;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial;background-color:rgb(227, 235, 237);height:19pt"> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-right: 3pt; padding-left: 3pt; padding-top: 1pt; width: 170pt; font-family: 'Times New Roman'; font-weight: normal; font-size: 9pt; line-height: 9pt; vertical-align: top; text-align: center; color: rgb(0, 0, 0); padding-bottom: 1pt; border-left-color: initial; border-left-style: none; border-left-width: initial;"><span style="float:none">$</span>56,093</td> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-right: 3pt; padding-left: 3pt; padding-top: 1pt; width: 170pt; font-family: 'Times New Roman'; font-weight: normal; font-size: 9pt; line-height: 9pt; vertical-align: top; text-align: center; color: rgb(0, 0, 0); padding-bottom: 1pt; border-left-color: initial; border-left-style: none; border-left-width: initial;">86</td> </tr> </table>

56093000000

86 <div style="margin-top:0px;text-transform:uppercase;margin-bottom:3pt;font-family:'times new roman';color:rgb(0, 0, 0);font-size:9pt;font-weight:bold;letter-spacing:0px;"> <b>Portfolio Holdings (as of </b> <b>7/31/26</b> <b>)</b> </div><div style="margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:9pt;font-weight:bold;letter-spacing:0px;text-transform:none;margin-bottom:0px;page-break-after:avoid;"> <b>Allocation of Holdings (Based on Net Assets)</b> </div><div style="font-family:'times new roman';font-size:9pt;font-weight:400;color:rgb(0, 0, 0);width:540pt;margin-bottom:12pt;margin-left:18pt;"> <img alt="Graphical Representation - Top N Holdings Chart" src="chartimages_12287116.jpg" style="margin-left: 50pt; width: 437pt;"/> </div> <div style="font-family:'times new roman';font-size:9pt;font-weight:400;color:rgb(0, 0, 0);width:540pt;margin-bottom:9pt;margin-left:18pt;"> <div style="font-family:'times new roman';font-size:9pt;font-weight:400;color:rgb(0, 0, 0);break-inside:avoid;"> <div style="font-family:'times new roman';color:rgb(0, 0, 0);font-size:11pt;font-weight:bold;margin-bottom:4pt;margin-top:0px;"> <b>How has the Fund changed?</b> </div> </div> <ul style="padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; margin-top: 0; margin-right: 0; margin-bottom: 0; margin-left: 0; counter-reset: numberedlisting 0 letteringlisting 0 letteredhead 0 lcrmnhead 0 ucletteredhead 0 ucrmnhead 0; break-inside: avoid;"> <li style="font-weight: 400; padding-left: 3pt; margin-left: 7pt; list-style-type: disc; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 10pt; line-height: 11pt; margin-bottom: 3pt;"> <div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:8pt;">Effective on May 29, 2026, the Fund and it’s registered investment company changed their name from Dreyfus Treasury Obligations Cash Management to BNY Dreyfus Treasury Obligations Cash Management.</div> </li> </ul> </div><div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:10pt;"> <b>This is a summary of certain changes to the Fund since </b> <b>February 1, 2026</b> <b>. For more complete information, you may review the Fund’s </b> <b>current prospectus dated </b> <b>June 1, 2026</b> <b> at </b> <span style="white-space:nowrap"> <span style="text-decoration-line:underline;color:rgb(0, 0, 0);line-height:8.5pt;word-break:break-all;font-weight:bold;font-family:'times new roman';font-size:10pt">www.dreyfus.com/products/mm.html#overview</span> </span> <b> or upon request at 1-800-373-9387.</b> </div> <div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:8pt;">Effective on May 29, 2026, the Fund and it’s registered investment company changed their name from Dreyfus Treasury Obligations Cash Management to BNY Dreyfus Treasury Obligations Cash Management.</div> 2026-05-29 <div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:10pt;"> <b>This is a summary of certain changes to the Fund since </b> <b>February 1, 2026</b> <b>. For more complete information, you may review the Fund’s </b> <b>current prospectus dated </b> <b>June 1, 2026</b> <b> at </b> <span style="white-space:nowrap"> <span style="text-decoration-line:underline;color:rgb(0, 0, 0);line-height:8.5pt;word-break:break-all;font-weight:bold;font-family:'times new roman';font-size:10pt">www.dreyfus.com/products/mm.html#overview</span> </span> <b> or upon request at 1-800-373-9387.</b> </div> www.dreyfus.com/products/mm.html#overview 1-800-373-9387 BNY Dreyfus Treasury Obligations Cash Management Service Shares DTNXX This semi-annual shareholder report contains important information about BNY Dreyfus Treasury Obligations Cash Management (the “Fund”) for the period of February 1, 2026 to July 31, 2026. semi-annual shareholder report You can find additional information about the Fund at<br/> <span style="text-decoration-line:underline;color:rgb(0, 0, 0);line-height:7.5pt;word-break:break-all;font-weight:400;font-family:'times new roman';font-size:10pt">www.dreyfus.com/products/mm.html#overview</span>. You can also request this information by calling 1-800-373-9387 (inside the U.S. only) or by sending an e-mail request to info@bny.com. www.dreyfus.com/products/mm.html#overview 1-800-373-9387 info@bny.com <div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:8pt;"> <b>This report describes changes to the Fund that occurred during the reporting period.</b> </div> <div style="margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:11pt;font-weight:bold;margin-bottom:2pt;"> <b>What were the Fund’s costs for the last </b> <b>six months</b> <b>?</b> </div><div style="font-weight:400;margin-top:0px;font-family:'times new roman';color:rgb(0, 0, 0);font-size:10pt;line-height:11pt;margin-bottom:3pt;">(based on a hypothetical $10,000 investment)</div><table style="width:100%;border-collapse:collapse;page-break-inside:avoid;break-inside:avoid"> <tr style="break-after:avoid;break-inside:avoid-page;page-break-inside:avoid;height:auto;background-color:rgb(0, 72, 94);border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 10pt; padding-left: 3pt; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); vertical-align: top; text-align: left; width: 25%;">Share Class</td> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 10pt; padding-left: 3pt; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); vertical-align: top; text-align: center; width: 30%;">Costs of a $10,000 investment</td> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 10pt; padding-left: 3pt; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); vertical-align: top; text-align: center; width: 40%;">Costs paid as a percentage of a $10,000 investment</td> </tr> <tr style="break-inside:avoid-page;page-break-inside:avoid;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial;background-color:rgb(227, 235, 237);height:19pt"> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 9pt; line-height: 9pt; vertical-align: top; text-align: left; text-indent: -6pt;">Service <span style="white-space:nowrap">Shares<sup style="vertical-align:super;font-size:5pt">*</sup></span></td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 9pt; line-height: 9pt; text-align: center; vertical-align: top;"><span style="float:none">$</span>49</td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt; white-space: nowrap; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 9pt; line-height: 9pt; text-align: center; vertical-align: top;">0.98<span>%</span><sup style="vertical-align:super;font-size:5pt">**</sup></td> </tr> </table><table style="width:100%;border-collapse:collapse;page-break-inside:avoid;break-inside:avoid;margin-bottom:22pt"> <tr style="break-inside:avoid-page;page-break-inside:avoid;height:auto;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-style: normal; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 5pt; line-height: normal; padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 10pt; text-align: left; vertical-align: super;">*</td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-family: 'Times New Roman'; font-size: 9pt; line-height: normal; font-style: normal; text-align: left; vertical-align: top; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0;"> <div style="font-weight:400;margin-top:0px;font-family:'times new roman';font-size:9pt;line-height:normal;font-style:normal;text-align:left;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;">During the period, fees were waived and/or expenses reimbursed pursuant to an agreement with the Fund’s investment adviser, BNY Mellon Investment Adviser, Inc. If this agreement is not extended in the future, expenses could be higher.</div></td> </tr> <tr style="break-inside:avoid-page;page-break-inside:avoid;height:auto;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-style: normal; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 5pt; line-height: normal; padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0; width: 10pt; text-align: left; vertical-align: super;">**</td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 0; font-family: 'Times New Roman'; font-size: 9pt; line-height: normal; font-style: normal; text-align: left; vertical-align: top; color: rgb(0, 0, 0); padding-top: 0; padding-right: 0; padding-bottom: 0; padding-left: 0;"> <div style="font-weight:400;margin-top:0px;font-family:'times new roman';font-size:9pt;line-height:normal;font-style:normal;text-align:left;vertical-align:top;color:rgb(0, 0, 0);padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-bottom:0px;">Annualized.</div></td> </tr> </table> 49 0.0098 <div style="font-family:'times new roman';color:rgb(0, 0, 0);font-size:11pt;font-weight:bold;margin-top:0px;margin-bottom:0px;"> <b>KEY FUND STATISTICS (AS OF </b> <b>7/31/26</b> <b>)</b> </div><table style="width:100%;border-collapse:collapse;page-break-inside:avoid;break-inside:avoid"> <tr style="break-after:avoid;break-inside:avoid-page;page-break-inside:avoid;height:auto;background-color:rgb(0, 72, 94);border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial"> <td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); padding-top: 1pt; padding-bottom: 10pt; padding-right: 3pt; padding-left: 3pt; width: 170pt; vertical-align: top; text-align: center;"><br/> Fund Size (Millions)</td> <td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Times New Roman'; font-size: 9pt; line-height: 9pt; font-weight: bold; color: rgb(255, 255, 255); padding-top: 1pt; padding-bottom: 10pt; padding-right: 3pt; padding-left: 3pt; width: 170pt; vertical-align: top; text-align: center;"><br/> Number of Holdings</td> </tr> <tr style="break-inside:avoid-page;page-break-inside:avoid;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial;background-color:rgb(227, 235, 237);height:19pt"> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-right: 3pt; padding-left: 3pt; padding-top: 1pt; width: 170pt; font-family: 'Times New Roman'; font-weight: normal; font-size: 9pt; line-height: 9pt; vertical-align: top; text-align: center; color: rgb(0, 0, 0); padding-bottom: 1pt; border-left-color: initial; border-left-style: none; border-left-width: initial;"><span style="float:none">$</span>56,093</td> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-right: 3pt; padding-left: 3pt; padding-top: 1pt; width: 170pt; font-family: 'Times New Roman'; font-weight: normal; font-size: 9pt; line-height: 9pt; vertical-align: top; text-align: center; color: rgb(0, 0, 0); padding-bottom: 1pt; border-left-color: initial; border-left-style: none; border-left-width: initial;">86</td> </tr> </table>

56093000000