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Stone Ridge Holdings Group LP

13F filer · CIK 0002019841
Reported Jul 31, 2026
13F portfolio value$18.6MU.S. long equity reported on 13F
Positions10 new · 0 closed
Net flow last quarter$0Buys minus sells
Top 10 positions weight44.1%Concentration

Holdings

13F · last 4 quarters free
Scroll for earlier quarters
CompanyValue% of portfolio% of companyPOSITION CHANGE qoq %First reported
Q2 2026Reported Jul 31, 20261 positions
LDDRLandauer Inc$8.21M44.07%Not reportedNot reportedQ1 2025
Q1 2026Reported May 13, 20261 positions
LDDRLandauer Inc$8.46M44.44%Not reportedNot reportedQ1 2025
Q4 2025Reported Feb 17, 20262 positions
LDDRLandauer Inc$8.71M0.64%Not reported-93.0%Q1 2025
STUBStubHub Holdings, Inc.$1.08M0.08%Not reportedNot reportedQ3 2025
Q3 2025Reported Nov 3, 20252 positions
LDDRLandauer Inc$128M91.11%Not reported-46.3%Q1 2025
STUBStubHub Holdings, Inc.$1.35M0.96%Not reportedNewQ3 2025
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