Seth Klarman

Seth Klarman

Baupost Group

Runs Baupost and wrote Margin of Safety. A patient value investor who often holds a large part of the fund outside listed US stocks.

13F portfolio value

Q2 2026

$5.42B

1-year growth

+31.6%

2-year growth

+53.4%

Positions

23

Top 10 share

74.9%

Quarterly turnover

12.5%

Last filed

Aug 13, 2026

Source: SEC EDGAR · Photo: Maryland GovPics (CC BY 2.0)

Q2 2026: summary

MakklerAI
  • AMZN shares rose 20%; its portfolio weight increased to 16.5% from 12.7% in the prior quarter.
  • GPC shares rose 89% to a 6.1% weight, while NCLH more than doubled to 3.0%; CME was a new 2.5% position.
  • WCC was cut 53.9% but remained a 4.2% holding; WTW and PCVX were sold out.
  • The $5.4B portfolio held 23 positions, with 74.9% in its top 10; turnover was 12.5%, with 3 new, 6 added, 9 reduced and 2 exited positions.

Filings between 13Fs

Form 4 (insider trades, filed within 2 business days) and Schedule 13D/13G (stakes above 5%). Much fresher than a 13F, which can be 45 days old.

No Form 4 or 13D/13G filings from this guru in the last 6 months.

MakklerAI

Ask MakklerAI about Seth Klarman's portfolio

Explore this quarter's moves and where each position stands against its estimated buy price and Makkler Fair Value. Answers are based on the 13F and today's prices.

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