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   <body><div style="display:none"> <ix:header> <ix:hidden> <ix:nonNumeric name="dei:AmendmentFlag" contextRef="duration_2025-11-15_to_2025-11-15" id="ixv-262">false</ix:nonNumeric> <ix:nonNumeric id="Hidden_dei_EntityCentralIndexKey" name="dei:EntityCentralIndexKey" contextRef="duration_2025-11-15_to_2025-11-15">0001295810</ix:nonNumeric> </ix:hidden> <ix:references> <link:schemaRef xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" xlink:type="simple" xlink:href="sho-20251115.xsd" xlink:arcrole="http://www.xbrl.org/2003/linkbase"/> </ix:references> <ix:resources> <xbrli:context id="duration_2025-11-15_to_2025-11-15"> <xbrli:entity> <xbrli:identifier scheme="http://www.sec.gov/CIK">0001295810</xbrli:identifier> </xbrli:entity> <xbrli:period> <xbrli:startDate>2025-11-15</xbrli:startDate> <xbrli:endDate>2025-11-15</xbrli:endDate> </xbrli:period> </xbrli:context> <xbrli:context id="duration_2025-11-15_to_2025-11-15_us-gaap-StatementClassOfStockAxis_us-gaap-CommonStockMember"> <xbrli:entity> <xbrli:identifier scheme="http://www.sec.gov/CIK">0001295810</xbrli:identifier> <xbrli:segment> <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">us-gaap:CommonStockMember</xbrldi:explicitMember> </xbrli:segment> </xbrli:entity> <xbrli:period> <xbrli:startDate>2025-11-15</xbrli:startDate> <xbrli:endDate>2025-11-15</xbrli:endDate> </xbrli:period> </xbrli:context> <xbrli:context id="duration_2025-11-15_to_2025-11-15_us-gaap-StatementClassOfStockAxis_us-gaap-SeriesHPreferredStockMember"> <xbrli:entity> <xbrli:identifier scheme="http://www.sec.gov/CIK">0001295810</xbrli:identifier> <xbrli:segment> <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">us-gaap:SeriesHPreferredStockMember</xbrldi:explicitMember> </xbrli:segment> </xbrli:entity> <xbrli:period> <xbrli:startDate>2025-11-15</xbrli:startDate> <xbrli:endDate>2025-11-15</xbrli:endDate> </xbrli:period> </xbrli:context> <xbrli:context id="duration_2025-11-15_to_2025-11-15_us-gaap-StatementClassOfStockAxis_sho-SeriesIPreferredStockMember"> <xbrli:entity> <xbrli:identifier scheme="http://www.sec.gov/CIK">0001295810</xbrli:identifier> <xbrli:segment> <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">sho:SeriesIPreferredStockMember</xbrldi:explicitMember> </xbrli:segment> </xbrli:entity> <xbrli:period> <xbrli:startDate>2025-11-15</xbrli:startDate> <xbrli:endDate>2025-11-15</xbrli:endDate> </xbrli:period> </xbrli:context> </ix:resources> </ix:header> </div> <div style="text-align:center"> <div style="width:8.5in;text-align:left;margin-left: auto;margin-right: auto"> <div style="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&#160;</div> <div style="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&#160;</div> <p style="margin-top:4pt; 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<td style="vertical-align:top;text-align:left"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;text-align:left">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</p></td></tr></table> <p style="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
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<td style="width:4%;vertical-align:top;text-align:left"><ix:nonNumeric name="dei:SolicitingMaterial" contextRef="duration_2025-11-15_to_2025-11-15" format="ixt-sec:boolballotbox" id="ixv-311">&#9744;</ix:nonNumeric></td>
<td style="vertical-align:top;text-align:left"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;text-align:left">Soliciting material pursuant to Rule <span style="white-space:nowrap">14a-12</span> under the Exchange Act (17 CFR <span style="white-space:nowrap">240.14a-12)</span></p></td></tr></table> <p style="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
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<td style="width:4%;vertical-align:top;text-align:left"><ix:nonNumeric name="dei:PreCommencementTenderOffer" contextRef="duration_2025-11-15_to_2025-11-15" format="ixt-sec:boolballotbox" id="ixv-312">&#9744;</ix:nonNumeric></td>
<td style="vertical-align:top;text-align:left"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;text-align:left"><span style="white-space:nowrap">Pre-commencement</span> communications pursuant to Rule <span style="white-space:nowrap">14d-2(b)</span> under the Exchange Act (17 CFR <span style="white-space:nowrap">240.14d-2(b))</span></p></td></tr></table> <p style="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
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<td style="vertical-align:top;text-align:left"> <p style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;text-align:left"><span style="white-space:nowrap">Pre-commencement</span> communications pursuant to Rule <span style="white-space:nowrap">13e-4(c)</span> under the Exchange Act (17 CFR <span style="white-space:nowrap">240.13e-4(c))</span></p></td></tr></table> <p style="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Securities registered pursuant to Section&#160;12(b) of the Act:</p> <p style="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&#160;</p>
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<td style="border-bottom:1.00pt solid #000000;vertical-align:bottom;white-space:nowrap;text-align:center"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman;font-weight:bold;text-align:center">Title of Each Class</p></td>
<td style="vertical-align:bottom">&#160;</td>
<td style="border-bottom:1.00pt solid #000000;vertical-align:bottom;text-align:center"> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman;font-weight:bold;text-align:center">Trading Symbol(s)</p></td>
<td style="vertical-align:bottom">&#160;</td>
<td style="border-bottom:1.00pt solid #000000;vertical-align:bottom;text-align:center"> <p style="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman;font-weight:bold;text-align:center">Name of Each Exchange</p> <p style="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman;font-weight:bold;text-align:center">on Which Registered</p></td></tr>
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<td style="vertical-align:bottom">&#160;</td>
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<td style="vertical-align:bottom">&#160;</td>
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<td style="vertical-align:bottom">&#160;</td>
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<td style="vertical-align:bottom">&#160;</td>
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<td style="vertical-align:bottom">&#160;</td>
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<td style="vertical-align:top"><a href="d846096dex991.htm">Press Release, dated November&#160;17, 2025. </a></td></tr>
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<td colspan="3" style="vertical-align:bottom;white-space:nowrap">Sunstone Hotel Investors, Inc.</td></tr>
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<td style="vertical-align:top">Date: November&#160;17, 2025</td>
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