Hedge Fund · CIK 0001035674
John Paulson
Paulson & Co
John Paulson runs Paulson & Co, a hedge fund overseeing $3.26B in disclosed equity holdings (SEC CIK 0001035674). The latest portfolio (2025Q4) discloses 9 positions across 4 sectors, with the largest positions in MDGL, PPTA and BHC. On a mark-to-market basis the tracked portfolio has returned 95.4% over the past year. OpenStocks tracks 40 consecutive quarterly snapshots for this manager — every position change, new entry, and exit is logged below.
Portfolio
$3.26B
Positions
9
Quarter
2025Q4
Filings tracked
40
Biggest winner since filing
MDGLMADRIGAL PHARMACEUTICALS INC
+121.0%
+$490.5M
Biggest loser since filing
BHCBAUSCH HEALTH COS INC
-54.4%
−$509.6M
Investment strategy
John Paulson is a mid-size fund with a highly concentrated portfolio tilted toward healthcare names. 46% of the disclosed equity book is in Healthcare.
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<iframe src="https://openstocks.me/embed/stock/MDGL" width="100%" height="480" frameborder="0" loading="lazy" title="MDGL chart by OpenStocks" style="border:0;border-radius:12px;background:transparent"></iframe>Holdings
4 sectors9 positions
Top 3 = 70% of book · MDGL, PPTA, BHC
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Performance
vs SPY40 quarters tracked
Mark-to-market portfolio growth vs SPY benchmark, with AUM and concentration history.
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Options & derivatives
No options
John Paulson has no PUT or CALL positions disclosed for this quarter.
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Activity & trades
Quarter-by-quarterLast move 2025Q4
ADD BHC — and 4 more recent moves.
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Recent transactions
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TRIM
MADRIGAL PHARMACEUTICALS INC
−200,001
~$582.34 · 2025Q4
2026-02-17
SOLD
TRILOGY METALS INC NEW
−14,326,996
~$2.10 · 2025Q4
2026-02-17