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One Fin Capital Management LP

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13F filer, CIK 1753875, San Francisco, CA

One Fin Capital Management LP reported $280,267,809 across 20 holdings for the quarter ended 2026-03-31, in a 13F-HR filed 2026-05-15. Its ten largest share positions make up 75.13% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0000935836-26-000269

Period
2026-03-31
Reported value
$280M
Holdings
20
Top 10 weight
75.13%
New
6
Sold out
5

Largest buys vs the previous quarter

SecurityShares changeApprox. value
APTVnew+225,000$15.6M
GNRCnew+67,000$13.1M
PCGnew+625,000$11M
PINSnew+590,000$10.8M
UNHnew+33,000$8.93M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
CPRTexited-505,000-$19.8M
COFreduced-98,536-$18M
DRVNreduced-1,140,000-$14.4M
CYBERARK SOFTWARE LTD/ISRAELexited-25,000-$11.2M
SOLSreduced-135,000-$10.3M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q1 2026

Share positions as resolved from 13F-HR 0000935836-26-000269, largest first. % of portfolio is the value over $259,339,809, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
NXTNEXTPOWER INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 420,000 shares; 2025Q4: 300,000 shares; 2026Q1: 300,000 shares 300,000$36.2M13.95%0Timeline
NSCNORFOLK SOUTHN CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 80,000 shares; 2026Q1: 80,000 shares 80,000$23M8.85%0Timeline
WBDWARNER BROS DISCOVERY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 625,000 shares; 2025Q3: 625,000 shares; 2025Q4: 625,000 shares; 2026Q1: 760,000 shares 760,000$20.9M8.05%+135,000Timeline
AMRZAMRIZE LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 415,000 shares; 2025Q3: 450,000 shares; 2025Q4: 338,000 shares; 2026Q1: 338,000 shares 338,000$18.9M7.3%0Timeline
RKTROCKET COS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 1,330,000 shares; 2026Q1: 1,200,000 shares 1,200,000$17.1M6.59%-130,000Timeline
APTVAPTIV PLCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 100,000 shares; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 225,000 shares 225,000$15.6M6.02%newTimeline
SOLSSOLSTICE ADVANCED MATLS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 325,000 shares; 2026Q1: 190,000 shares 190,000$14.5M5.58%-135,000Timeline
GNRCGENERAC HLDGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 67,000 shares 67,000$13.1M5.05%newTimeline
PCGPG&E CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 625,000 shares 625,000$11M4.23%newTimeline
PINSPINTEREST INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 590,000 shares 590,000$10.8M4.17%newTimeline
YETIYETI HLDGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 332,454 shares; 2025Q4: 300,000 shares; 2026Q1: 267,100 shares 267,100$9.77M3.77%-32,900Timeline
FRNMPERCEPTIVE CAP SOLUTIONS CORQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 436,745 shares; 2026Q1: 843,482 shares 843,482$9.25M3.57%+406,737Timeline
UNHUNITEDHEALTH GROUP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 24,000 shares; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 33,000 shares 33,000$8.93M3.44%newTimeline
CRNCCERENCE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 470,000 shares; 2025Q4: 720,000 shares; 2026Q1: 1,300,016 shares 1,300,016$8.2M3.16%+580,016Timeline
DRVNDRIVEN BRANDS HLDGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 1,500,000 shares; 2024Q4: 1,500,000 shares; 2025Q1: 1,590,000 shares; 2025Q2: 1,590,000 shares; 2025Q3: 1,590,000 shares; 2025Q4: 1,640,000 shares; 2026Q1: 500,000 shares 500,000$6.3M2.43%-1,140,000Timeline
COFCAPITAL ONE FINL CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 131,536 shares; 2025Q3: 131,536 shares; 2025Q4: 131,536 shares; 2026Q1: 33,000 shares 33,000$6.02M2.32%-98,536Timeline
PRMBPRIMO BRANDS CORPORATIONQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 150,000 shares 150,000$2.82M1.09%newTimeline
JELDJELD-WEN HLDG INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 2,000,000 shares; 2026Q1: 1,912,044 shares 1,912,044$2.37M0.91%-87,956Timeline

Options

Puts and calls, as filed. The amount and value describe the underlying shares, not the option premium, so they stay out of % of portfolio (H5).

SecurityTypeAmountValueChange
NVDANVIDIA CORPORATION COMput120,000$20.9M0

Principal amounts

Notes and convertibles filed as a face amount (PRN). A face amount is never added to a share count (H6).

SecurityTypeAmountValueChange
LITHIUM ARGENTINA AGLITHIUM ARGENTINA AG NOTE 1.750% 1/1principal25,525,000$24.6M0

Sold out in Q1 2026

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
CPRTCOPART INC505,000$19.8Mshares
CYBERARK SOFTWARE LTD/ISRAELCYBERARK SOFTWARE LTD/ISRAEL25,000$11.2Mshares
BILLBILL HOLDINGS INC170,000$9.27Mshares
PFGCPERFORMANCE FOOD GROUP CO60,000$5.4Mshares
RXSTRXSIGHT INC254,583$2.65Mshares

How Q1 2026 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0000935836-26-000269 base2026-05-15acceptance time not in the bulk data set