<?xml version="1.0" encoding="US-ASCII"?>
<!-- Generated by CompSci Transform (tm) - http://www.compsciresources.com -->
<!-- Created: Thu Mar 12 00:55:05 UTC 2026 -->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:xbrldt="http://xbrl.org/2005/xbrldt">
  <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#PvpAdjustmentsOnly" roleURI="http://xbrl.sec.gov/ecd/role/PvpAdjustmentsOnly"/>
  <roleRef xlink:type="simple" xlink:href="trow-20251231.xsd#trow_r_AdditionalDimensions" roleURI="http://www.troweprice.com/role/AdditionalDimensions"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" arcroleURI="http://xbrl.org/int/dim/arcrole/all"/>
  <definitionLink xlink:role="http://xbrl.sec.gov/ecd/role/PvpAdjustmentsOnly" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="ecd_EqtyAwrdsAdjsMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_EqtyAwrdsAdjsMember"/>
    <loc xlink:type="locator" xlink:label="trow_PriorYearLTIAwardsForfeitedMember" xlink:href="trow-20251231.xsd#trow_PriorYearLTIAwardsForfeitedMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ecd_EqtyAwrdsAdjsMember" xlink:to="trow_PriorYearLTIAwardsForfeitedMember" order="1" xbrldt:closed="true"/>
  </definitionLink>
<!-- [WMV6][fct2kw3kSaB+eICza+2t/zGP09d0a+oALLMT/kMDyy8q2zi8IEcD36StCOXHrfaqCNvvRHg395Ggd8a+21A91qJXmcZ7O0+daLdM8/cAByWTexdB+FCnmOAK7rrOOQ9uXCkci/szlD04VmGGN4zQ2iiISFMAa/XQ0Xfe0s6q7YaYzuQtXQh0wOqmWE7/zOIYQ1iIZfenAB9k5hGEsZZyBUjW0Zs45u49JeFjFZI+GTu6OBZ6S7NPdG/0qri4ZbMIscOU7p22d7hsQBL6LF2Q4OS9J7MB4S0tTOVQDUEBCBB9wBUaD8QtZdSMEGwOd3YLQHEw6ISE] CSR-->
  <definitionLink xlink:role="http://www.troweprice.com/role/AdditionalDimensions" xlink:type="extended"/>
</linkbase>
