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 8 of 43 rows. Rows without a quote are marked unavailable.
| 1 | EMC | E M C CORP MASS | 20.13% | Add +77.3% | 51,851,500 | $1.38B | No quote | No quote |
| 2 | LNG | CHENIERE ENERGY INC | 14.71% | Add +14.4% | 29,841,174 | $1.01B | No quote | No quote |
| 3 | VSAT | VIASAT INC | 12.34% | - | 11,533,137 | $847.46M | $73.48 | No quote |
| 4 | AR | ANTERO RES CORP | 7.79% | Add +12.2% | 21,505,881 | $534.85M | $24.87 | No quote |
| 5 | AGN | ALLERGAN PLC | 6.72% | New | 1,721,587 | $461.44M | No quote | No quote |
| 6 | PBF | PBF ENERGY INC | 5.15% | Reduce -3.5% | 10,641,175 | $353.29M | $33.20 | No quote |
| 7 | PYPL | PAYPAL HLDGS INC | 3.97% | Reduce -36.5% | 7,059,745 | $272.51M | $38.60 | No quote |
| 8 | INVA | INNOVIVA INC | 3.63% | New | 19,815,983 | $249.48M | No quote | No quote |
| 9 | FOXA | TWENTY FIRST CENTY FOX INC | 3.13% | Add +87.8% | 7,696,922 | $214.59M | $27.88 | No quote |
| 10 | FOX | TWENTY FIRST CENTY FOX INC | 2.99% | Add +11.5% | 7,278,100 | $205.24M | $28.20 | No quote |
| 11 | OLN | OLIN CORP | 2.72% | Add +53.4% | 10,739,202 | $186.54M | $17.37 | No quote |
| 12 | TBPH | THERAVANCE BIOPHARMA INC | 1.78% | Add +1.3% | 6,500,991 | $122.22M | No quote | No quote |
| 13 | KERX | KERYX BIOPHARMACEUTICALS INC | 1.75% | - | 25,791,678 | $120.45M | No quote | No quote |
| 14 | VMW | VMWARE INC | 1.72% | New | 2,252,694 | $117.84M | No quote | No quote |
| 15 | VRTV | VERITIV CORP | 1.65% | Add +5.5% | 3,044,385 | $113.43M | No quote | No quote |
| 16 | ATRA | ATARA BIOTHERAPEUTICS INC | 1.49% | - | 5,359,632 | $101.99M | No quote | No quote |
| 17 | FWP | FORWARD PHARMA A/S | 1.33% | - | 5,367,300 | $91.24M | No quote | No quote |
| 18 | NG | NOVAGOLD RES INC | 1.10% | Reduce -21.0% | 15,000,000 | $75.6M | $5.04 | No quote |
| 19 | IMOS | CHIPMOS TECH BERMUDA LTD | 0.95% | - | 3,751,853 | $65.21M | No quote | No quote |
| 20 | KLXI | KLX INC | 0.94% | - | 2,000,000 | $64.28M | No quote | No quote |
| 21 | SEMI | SUNEDISON SEMICONDUCTOR LTD | 0.79% | - | 8,372,979 | $54.26M | No quote | No quote |
| 22 | AIGWS | AMERICAN INTL GROUP INC | 0.58% | Add +68.8% | 2,124,551 | $39.73M | No quote | No quote |
| 23 | SRAQU | SILVER RUN ACQUISITION CORP | 0.57% | New | 3,750,000 | $38.81M | No quote | No quote |
| 24 | BITI | BIOTIE THERAPIES OYJ | 0.54% | - | 1,395,000 | $36.81M | No quote | No quote |
| 25 | PRTK | PARATEK PHARMACEUTICALS INC | 0.34% | - | 1,544,498 | $23.43M | No quote | No quote |
| 26 | RUN | SUNRUN INC | 0.27% | - | 2,848,082 | $18.46M | No quote | No quote |
| 27 | LQ | LA QUINTA HLDGS INC | 0.20% | New | 1,111,000 | $13.89M | No quote | No quote |
| 28 | OREX | OREXIGEN THERAPEUTICS INC | 0.18% | Add +881.7% | 22,268,399 | $12.53M | No quote | No quote |
| 29 | KIN | KINDRED BIOSCIENCES INC | 0.15% | - | 3,013,848 | $10.4M | No quote | No quote |
| 30 | CWSA | CITIGROUP INC | 0.15% | - | 102,553,207 | $10.26M | No quote | No quote |
| 31 | BXE | BELLATRIX EXPLORATION LTD | 0.13% | Reduce -63.9% | 8,653,281 | $8.74M | No quote | No quote |
| 32 | GNW | GENWORTH FINL INC | 0.07% | New | 1,699,195 | $4.64M | No quote | No quote |
| 33 | NCQ | NOVACOPPER INC | 0.06% | - | 10,600,758 | $4.03M | No quote | No quote |
| 40 | THRX | THERAVANCE INC | - | Sold | 0 | $0 | No quote | No quote |
| 39 | SN | SANCHEZ ENERGY CORP | - | Sold | 0 | $0 | No quote | No quote |
| 38 | OCN | OCWEN FINL CORP | - | Sold | 0 | $0 | No quote | No quote |
| 37 | MU | MICRON TECHNOLOGY INC | - | Sold | 0 | $0 | No quote | No quote |
| 36 | KOS | KOSMOS ENERGY LTD | - | Sold | 0 | $0 | No quote | No quote |
| 35 | FTRPR | FRONTIER COMMUNICATIONS CORP | - | Sold | 0 | $0 | No quote | No quote |
| 34 | FTR | FRONTIER COMMUNICATIONS CORP | - | Sold | 0 | $0 | No quote | No quote |
Other instruments
Bonds, warrants, or non-share principal positions reported alongside the equity portfolio.