Seth Klarman - Baupost Group
As of Q2 2026, Seth Klarman reported 23 long-equity positions worth $5.42B in aggregate.
Copy-investor backtest
- Latest quarter
- +3.22%
- 1-year
- +20.94%
- 3-year
- +48.31%
- 5-year
- +12.01%
- 3-year vs S&P 500
- -25.70%
- 5-year vs S&P 500
- -61.90%
- 5-year top 5
- -0.29%
Return from mechanically copying the disclosed 13F equity portfolio after each filing and rebalancing at the next. The vs S&P 500 figures subtract SPY over that manager's own rebalance dates, so both sides cover the same days; both are price return, excluding dividends. Method & limitations.
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Updated 2026-06-06 from SEC 13F data.
Live quotes available for 6 of 31 rows. Rows without a quote are marked unavailable.
| 1 | LNG | CHENIERE ENERGY INC | 19.21% | Add +23.3% | 13,807,230 | $972.03M | No quote | No quote |
| 2 | VSAT | VIASAT INC | 14.37% | - | 11,533,137 | $726.93M | $63.03 | No quote |
| 3 | MU | MICRON TECHNOLOGY INC | 13.64% | Reduce -61.9% | 19,706,035 | $689.91M | $35.01 | No quote |
| 4 | EBAY | EBAY INC | 10.33% | Add +52.8% | 9,315,000 | $522.76M | $56.12 | No quote |
| 5 | AR | ANTERO RES CORP | 6.29% | Add +184.4% | 7,847,831 | $318.47M | $40.58 | No quote |
| 6 | THRX | THERAVANCE INC | 5.54% | - | 19,815,983 | $280.4M | No quote | No quote |
| 7 | KERX | KERYX BIOPHARMACEUTICALS INC | 5.12% | - | 18,300,000 | $258.95M | No quote | No quote |
| 8 | PBF | PBF ENERGY INC | 4.56% | Add +21.2% | 8,663,114 | $230.79M | $26.64 | No quote |
| 9 | VRTV | VERITIV CORP | 2.37% | Reduce -2.1% | 2,314,193 | $120.04M | No quote | No quote |
| 10 | FWP | FORWARD PHARMA A/S | 2.21% | New | 5,367,300 | $111.8M | No quote | No quote |
| 11 | TBPH | THERAVANCE BIOPHARMA INC | 1.79% | - | 6,061,228 | $90.43M | No quote | No quote |
| 12 | OCN | OCWEN FINL CORP | 1.78% | Reduce -14.8% | 5,967,050 | $90.1M | No quote | No quote |
| 13 | CWSA | CITIGROUP INC | 1.77% | Reduce -16.2% | 102,673,007 | $89.33M | No quote | No quote |
| 14 | SEMI | SUNEDISON SEMICONDUCTOR LTD | 1.52% | - | 4,145,379 | $76.98M | No quote | No quote |
| 15 | IMOS | CHIPMOS TECH BERMUDA LTD | 1.51% | - | 3,283,235 | $76.57M | No quote | No quote |
| 16 | BXE | BELLATRIX EXPLORATION LTD | 1.30% | New | 18,103,713 | $65.9M | No quote | No quote |
| 17 | NG | NOVAGOLD RES INC | 1.26% | - | 21,688,300 | $63.98M | $2.95 | No quote |
| 18 | PRTK | PARATEK PHARMACEUTICALS INC | 1.23% | New | 1,735,218 | $62.1M | No quote | No quote |
| 19 | KOS | KOSMOS ENERGY LTD | 1.20% | Add +52.5% | 7,242,354 | $60.76M | No quote | No quote |
| 20 | ATRA | ATARA BIOTHERAPEUTICS INC | 1.17% | New | 2,495,913 | $59.14M | No quote | No quote |
| 21 | ELOS | SYNERON MEDICAL LTD | 0.45% | Reduce -19.3% | 2,416,310 | $22.54M | No quote | No quote |
| 22 | KIN | KINDRED BIOSCIENCES INC | 0.44% | - | 3,013,848 | $22.45M | No quote | No quote |
| 23 | AIGWS | AMERICAN INTL GROUP INC | 0.43% | Add +12.7% | 889,387 | $21.9M | No quote | No quote |
| 24 | ALDW | ALON USA PARTNERS LP | 0.24% | Add +189.9% | 954,188 | $12.32M | No quote | No quote |
| 25 | AOI | ALLIANCE ONE INTL INC | 0.20% | - | 6,383,641 | $10.09M | No quote | No quote |
| 26 | NCQ | NOVACOPPER INC | 0.06% | - | 6,005,298 | $2.94M | No quote | No quote |
| 30 | TQNT | TRIQUINT SEMICONDUCTOR INC | - | Sold | 0 | $0 | No quote | No quote |
| 29 | RFMD | RF MICRODEVICES INC | - | Sold | 0 | $0 | No quote | No quote |
| 28 | BYD | BOYD GAMING CORP | - | Sold | 0 | $0 | No quote | No quote |
| 27 | AVEO | AVEO PHARMACEUTICALS INC | - | Sold | 0 | $0 | No quote | No quote |
Other instruments
Bonds, warrants, or non-share principal positions reported alongside the equity portfolio.
| 1 | THRX | THERAVANCE INCNOTE 2.125% 1/1 | OTHER | 40,089,000 | $31.42M |