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shares
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0000889512
N-1A
N-CSR
Legg Mason Partners Institutional Trust
2026-08-31
Western Asset Premier Institutional Government Reserves
Capital Shares
WABXX
2026-08-31
<span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;">This </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;">annual shareholder report</span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"> contains important information about </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;">Western Asset Premier Institutional Government Reserves for the </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;">period </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;">September 1, 2025, to </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;">August 31, 2026.</span>
annual shareholder report
<span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;">You can find additional information about the Fund at </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;">https://www.franklintempleton.com/regulatory-fund-documents</span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;">. You can also </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;">request this information by contacting us at </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;">1-800-625-4554, or 1-203-703-6002</span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;">.</span>
https://www.franklintempleton.com/regulatory-fund-documents
1-800-625-4554, or 1-203-703-6002
<div><span style="text-transform:uppercase;"><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;text-transform:uppercase;color:#1447FF;;"><b>HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?</b></span></span></div><div><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">As of August 31, 2026, the seven-day current yield for </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">Capital Shares of the Western Asset Premier Institutional Government Reserves </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">was </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">3.63% and the seven-day effective yield was </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">3.70%. The seven-day current yield represents net interest income generated by the </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">Fund’s investments for the past seven days and assumes income is generated each week over a 365-day period. The seven-day </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">effective yield assumes reinvestment of the coupon (interest payments) and will typically be slightly higher than the current yield </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">because of the compounding effect on investment returns.</span></div><div><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">The Fund’s holdings in floating rates securities, which generally comprised 20% to 25% of the portfolio, positively impacted performance </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">during the reporting period.</span></div>
The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
<div><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">For current month-end performance, please call Franklin Templeton at </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">1-800-625-4554, or 1-203-703-6002 or visit</span><br/><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;">https://www.franklintempleton.com/investments/options/money-market-funds</span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">. </span></div>
<div><span style="text-transform:uppercase;"><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;text-transform:uppercase;color:#1447FF;;"><b>KEY FUND STATISTICS </b></span></span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;">(as of </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;">August 31, 2026)</span></div><div>
<table cellspacing="0" style="width:98%;cellspacing:0;border-top:1.5pt solid #6B6B6B;margin-left:7.75pt;border-bottom:1.5pt solid #6B6B6B;margin-top:10px;">
<tr style="height:1px;">
<td style="height:1px;width:90%;"></td>
<td style="height:1px;width:10%;"></td>
</tr>
<tr>
<td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:top">
<div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"><b>Total Net Assets</b></span></div>
</td>
<td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:bottom">
<div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"><span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;">$7,044,029,812</span></div>
</td>
</tr>
<tr>
<td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:top">
<div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"><b>Total Number of Portfolio Holdings (reflects holdings of </b></span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"><b>Government Portfolio)</b></span></div>
</td>
<td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:bottom">
<div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"><span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;">91</span></div>
</td>
</tr>
<tr>
<td colspan="1" style="vertical-align:top">
<div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"><b>Total Management Fee Paid</b></span></div>
</td>
<td colspan="1" style="vertical-align:bottom">
<div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"><span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;">$9,180,668</span></div>
</td>
</tr>
</table></div>
7044029812
91
9180668
https://www.franklintempleton.com/regulatory-fund-documents
0.330
0.287
0.240
0.143
Western Asset Premier Institutional Government Reserves
Premium Shares
WACXX
2026-08-31
<span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;">This </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;">annual shareholder report</span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;"> contains important information about </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;">Western Asset Premier Institutional Government Reserves for the </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;">period </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;">September 1, 2025, to </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;">August 31, 2026.</span>
annual shareholder report
<span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;">You can find additional information about the Fund at </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;">https://www.franklintempleton.com/regulatory-fund-documents</span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;">. You can also </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;">request this information by contacting us at </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;">1-800-625-4554, or 1-203-703-6002</span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#161616;;">.</span>
https://www.franklintempleton.com/regulatory-fund-documents
1-800-625-4554, or 1-203-703-6002
<div><span style="text-transform:uppercase;"><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;text-transform:uppercase;color:#1447FF;;"><b>HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?</b></span></span></div><div><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">As of August 31, 2026, the seven-day current yield for </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">Premium Shares of the Western Asset Premier Institutional Government </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">Reserves was </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">3.61% and the seven-day effective yield was </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">3.68%. The seven-day current yield represents net interest income </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">generated by the Fund’s investments for the past seven days and assumes income is generated each week over a 365-day period. </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">The seven-day effective yield assumes reinvestment of the coupon (interest payments) and will typically be slightly higher than the </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">current yield because of the compounding effect on investment returns.</span></div><div><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">The Fund’s holdings in floating rates securities, which generally comprised 20% to 25% of the portfolio, positively impacted performance </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">during the reporting period.</span></div>
The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
<div><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">For current month-end performance, please call Franklin Templeton at </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">1-800-625-4554, or 1-203-703-6002 or visit</span><br/><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;;">https://www.franklintempleton.com/investments/options/money-market-funds</span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;">. </span></div>
<div><span style="text-transform:uppercase;"><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:12.024pt;text-transform:uppercase;color:#1447FF;;"><b>KEY FUND STATISTICS </b></span></span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;">(as of </span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.824pt;color:#2D2D2D;;">August 31, 2026)</span></div><div>
<table cellspacing="0" style="width:98%;cellspacing:0;border-top:1.5pt solid #6B6B6B;margin-left:7.75pt;border-bottom:1.5pt solid #6B6B6B;margin-top:10px;">
<tr style="height:1px;">
<td style="height:1px;width:90%;"></td>
<td style="height:1px;width:10%;"></td>
</tr>
<tr>
<td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:top">
<div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"><b>Total Net Assets</b></span></div>
</td>
<td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:bottom">
<div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"><span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;">$7,044,029,812</span></div>
</td>
</tr>
<tr>
<td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:top">
<div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"><b>Total Number of Portfolio Holdings (reflects holdings of </b></span><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"><b>Government Portfolio)</b></span></div>
</td>
<td colspan="1" style="border-bottom:0.75pt solid #6B6B6B;vertical-align:bottom">
<div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"><span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;">91</span></div>
</td>
</tr>
<tr>
<td colspan="1" style="vertical-align:top">
<div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:left;text-align:left;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"><span style="clear:both;font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;color:#2D2D2D;;"><b>Total Management Fee Paid</b></span></div>
</td>
<td colspan="1" style="vertical-align:bottom">
<div style="background-color:#FFFFFF;padding-left:2pt;padding-top:1pt;padding-bottom:0;align:right;text-align:right;padding-right:2pt;font-family:Arial, Helvetica, sans-serif;font-size:10pt;margin-top:1pt;margin-bottom:0;"><span style="font-family:Arial, Helvetica, sans-serif;font-size:10.02pt;">$9,180,668</span></div>
</td>
</tr>
</table></div>
7044029812
91
9180668
https://www.franklintempleton.com/regulatory-fund-documents
0.330
0.287
0.240
0.143
*Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher. Additional amounts may be voluntarily waived and/or reimbursed from time to time.
1The expense table reflects the expenses of both the feeder Fund and the master Fund.
*Reflects holdings of Government Portfolio.
*Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher. Additional amounts may be voluntarily waived and/or reimbursed from time to time.
1The expense table reflects the expenses of both the feeder Fund and the master Fund.
*Reflects holdings of Government Portfolio.