0000030146 bmlcsfi:C000000105Member 2025-12-31 2026-06-30 0000030146 2025-12-31 2026-06-30 0000030146 bmlcsfi:C000000105Member 2026-06-30 0000030146 bmlcsfi:C000000105Member bmlcsfi:AlphabetIncClCMember 2026-06-30 0000030146 bmlcsfi:C000000105Member bmlcsfi:AmazonComIncMember 2026-06-30 0000030146 bmlcsfi:C000000105Member bmlcsfi:AppleIncMember 2026-06-30 0000030146 bmlcsfi:C000000105Member oef:CommunicationsSectorMember 2026-06-30 0000030146 bmlcsfi:C000000105Member oef:ConsumerDiscretionarySectorMember 2026-06-30 0000030146 bmlcsfi:C000000105Member oef:ConsumerStaplesSectorMember 2026-06-30 0000030146 bmlcsfi:C000000105Member us-gaap:EnergySectorMember 2026-06-30 0000030146 bmlcsfi:C000000105Member us-gaap:FinancialServicesSectorMember 2026-06-30 0000030146 bmlcsfi:C000000105Member bmlcsfi:GEVernovaIncMember 2026-06-30 0000030146 bmlcsfi:C000000105Member us-gaap:HealthcareSectorMember 2026-06-30 0000030146 bmlcsfi:C000000105Member oef:IndustrialSectorMember 2026-06-30 0000030146 bmlcsfi:C000000105Member oef:InformationTechnologySectorMember 2026-06-30 0000030146 bmlcsfi:C000000105Member bmlcsfi:JPMorganChaseAndCoMember 2026-06-30 0000030146 bmlcsfi:C000000105Member oef:MaterialsSectorMember 2026-06-30 0000030146 bmlcsfi:C000000105Member bmlcsfi:MetaPlatformsIncClAMember 2026-06-30 0000030146 bmlcsfi:C000000105Member bmlcsfi:MicronTechnologyIncMember 2026-06-30 0000030146 bmlcsfi:C000000105Member bmlcsfi:MicrosoftCorpMember 2026-06-30 0000030146 bmlcsfi:NetOtherAssetsAndLiabilitiesMember bmlcsfi:C000000105Member 2026-06-30 0000030146 bmlcsfi:C000000105Member bmlcsfi:NVIDIACorpMember 2026-06-30 0000030146 bmlcsfi:C000000105Member bmlcsfi:TexasInstrumentsIncMember 2026-06-30 0000030146 bmlcsfi:C000000105Member oef:UtilitiesSectorMember 2026-06-30 iso4217:USD pure bmlcsfi:Holding 0.025 0.135 0.002 0.365 0.026 0.010 0.145 0.066 0.076 0.027 0.028 0.054 0.103 0.030 0.059 0.020 0.052 0.034 0.095 0.097 0.026 0000030146 false N-1A N-CSRS BNY Mellon Large Cap Securities Fund, Inc. 2026-06-30 BNY Mellon Large Cap Securities Fund, Inc. BNY Mellon Large Cap Securities Fund, Inc. DREVX This semi-annual shareholder report contains important information about BNY Mellon Large Cap Securities Fund, Inc. (the “Fund”) for the period of January 1, 2026 to June 30, 2026. semi-annual shareholder report You can find additional information about the Fund at <span style="white-space:nowrap"><span style="text-decoration-line:underline;color:rgb(0, 0, 0);line-height:7.5pt;word-break:break-all;white-space:nowrap;font-weight:400;font-family:'times new roman';font-size:10pt">bny.com/investments/literaturecenter</span>.</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. bny.com/investments/literaturecenter 1-800-373-9387 info@bny.com <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%;">Fund</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 $10,000 investment</td> </tr> <tr style="break-inside:avoid-page;page-break-inside:avoid;border-bottom-color:initial;border-bottom-style:none;border-bottom-width:initial;background-color:rgb(227, 235, 237);height:19pt"> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 3pt; padding-left: 6pt; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 9pt; line-height: 9pt; vertical-align: top; text-align: left; text-indent: -6pt;">BNY Mellon Large Cap Securities Fund, Inc.</td> <td style="font-weight: 400; break-inside: avoid-page; page-break-inside: avoid; padding-top: 1pt; padding-right: 3pt; padding-bottom: 3pt; padding-left: 3pt; font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 9pt; line-height: 9pt; text-align: center; vertical-align: top;"><span style="float:none">$</span>35</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;">0.68<span>%</span><span>*</span></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;">Annualized.</div></td> </tr> </table> 35 0.0068 <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>6/30/26</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> <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/> Portfolio Turnover</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>2,408</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;">51</td> <td style="break-inside: avoid-page; page-break-inside: avoid; padding-right: 3pt; padding-left: 3pt; padding-top: 1pt; white-space: nowrap; 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;">16.34<span>%</span></td> </tr> </table> 2408000000 51 0.1634 <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>6/30/26</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>Top Ten Holdings (Based on Net Assets)</b> <b> <sup style="vertical-align:super;font-size:smaller">*</sup> </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_12170018.jpg" style="margin-left: 50pt; width: 482pt;"/> </div><div style="font-weight:400;font-family:'times new roman';font-size:9pt;line-height:10pt;color:rgb(0, 0, 0);margin-top:-4pt;margin-bottom:0px;">* Excludes money market funds or other short-term securities held for the investment of cash and cash collateral for securities loaned, if any.</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>Sector Allocation (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:6pt;margin-left:18pt;"> <img alt="Graphical Representation - Allocation 1 Chart" src="chartimages_12169995.jpg" style="margin-left: 29pt; width: 437pt;"/> </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>Top Ten Holdings (Based on Net Assets)</b> <b> <sup style="vertical-align:super;font-size:smaller">*</sup> </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_12170018.jpg" style="margin-left: 50pt; width: 482pt;"/> </div><div style="font-weight:400;font-family:'times new roman';font-size:9pt;line-height:10pt;color:rgb(0, 0, 0);margin-top:-4pt;margin-bottom:0px;">* Excludes money market funds or other short-term securities held for the investment of cash and cash collateral for securities loaned, if any.</div> Annualized. Excludes money market funds or other short-term securities held for the investment of cash and cash collateral for securities loaned, if any.