MondegarAI
Soapstone Management L.P.

Q4 2025 · 13F-HR

Soapstone Management L.P.holdings as filed

Filed 2026-02-17 · accession 0001398344-26-003286

$135.7M
Reported value
13
Positions
2025-12-31
Period end
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The Brief · Soapstone Management L.P. · Q4 2025

AI · grounded in 13F

Soapstone Management L.P. established a new position in BALL valued at $10.59M. The fund also opened a new stake in KNF for $2.4M and increased its holding of AGI by 123.79%. On the sell side, the fund closed positions in BDX and COO, while reducing its stake in AEM by 50%.

Holdings as filed

CUSIPTickerIssuerValue% port.SharesClassVoting
011532108AGIALAMOS GOLD INC NEW$26.8M19.8%695,285CommonSOLE
F21107101CSTMCONSTELLIUM SE$25.4M18.8%1,350,000CommonSOLE
74460D109PSAPUBLIC STORAGE OPER CO$19.5M14.3%75,000CommonSOLE
174610105CFGCITIZENS FINL GROUP INC$13.1M9.68%225,000CommonSOLE
91879Q109MTNVAIL RESORTS INC$10.6M7.83%80,000CommonSOLE
058498106BALLBALL CORP$10.6M7.81%200,000CommonSOLE
030420103AWKAMERICAN WTR WKS CO INC NEW$9.8M7.21%75,000CommonSOLE
023135106AMZNAMAZON COM INC$9.5M7.02%41,250CommonSOLE
680665205OLNOLIN CORP$3.1M2.30%150,000CommonSOLE
008474108AEMAGNICO EAGLE MINES LTD$2.5M1.87%15,000CommonSOLE
498894104KNFKNIFE RIVER CORP$2.4M1.77%34,071CommonSOLE
12008R107BLDRBUILDERS FIRSTSOURCE INC$1.5M1.14%15,000CommonSOLE
640491106NEOGNEOGEN CORP$699,0000.52%100,000CommonSOLE

Source: SEC EDGAR · raw 13F holdings as filed. The Class column shows the option type when reported (Put/Call) or Common when the issuer's equity is held directly. 13F discloses long positions only.