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 29 rows. Rows without a quote are marked unavailable.
| 1 | LNG | CHENIERE ENERGY INC | 18.08% | - | 13,807,230 | $1.07B | No quote | No quote |
| 2 | VSAT | VIASAT INC | 11.63% | - | 11,533,137 | $687.49M | $59.61 | No quote |
| 3 | EBAY | EBAY INC | 9.09% | - | 9,315,000 | $537.29M | $57.68 | No quote |
| 4 | MU | MICRON TECHNOLOGY INC | 9.05% | - | 19,706,035 | $534.63M | $27.13 | No quote |
| 5 | PXD | PIONEER NAT RES CO | 8.76% | New | 3,166,937 | $517.83M | No quote | No quote |
| 6 | AR | ANTERO RES CORP | 5.59% | Add +19.1% | 9,347,700 | $330.16M | $35.32 | No quote |
| 7 | THRX | THERAVANCE INC | 5.27% | - | 19,815,983 | $311.51M | No quote | No quote |
| 8 | PBF | PBF ENERGY INC | 4.97% | - | 8,663,114 | $293.85M | $33.92 | No quote |
| 9 | KERX | KERYX BIOPHARMACEUTICALS INC | 4.82% | Add +22.3% | 22,380,200 | $284.9M | No quote | No quote |
| 10 | SEMI | SUNEDISON SEMICONDUCTOR LTD | 3.45% | Add +90.5% | 7,897,979 | $203.93M | No quote | No quote |
| 11 | ATRA | ATARA BIOTHERAPEUTICS INC | 3.26% | Add +90.8% | 4,763,265 | $192.8M | No quote | No quote |
| 12 | FWP | FORWARD PHARMA A/S | 2.57% | - | 5,367,300 | $152M | No quote | No quote |
| 13 | TBPH | THERAVANCE BIOPHARMA INC | 1.87% | Add +5.0% | 6,366,577 | $110.46M | No quote | No quote |
| 14 | VRTV | VERITIV CORP | 1.70% | Reduce -1.7% | 2,274,385 | $100.37M | No quote | No quote |
| 15 | IMOS | CHIPMOS TECH BERMUDA LTD | 1.37% | - | 3,283,235 | $80.97M | No quote | No quote |
| 16 | CWSA | CITIGROUP INC | 1.27% | - | 102,673,007 | $74.95M | No quote | No quote |
| 17 | OCN | OCWEN FINL CORP | 1.09% | Add +31.3% | 7,833,884 | $64.63M | No quote | No quote |
| 18 | NG | NOVAGOLD RES INC | 1.09% | - | 21,688,300 | $64.2M | $2.96 | No quote |
| 19 | KLXI | KLX INC | 0.98% | New | 1,500,000 | $57.81M | No quote | No quote |
| 20 | KOS | KOSMOS ENERGY LTD | 0.97% | - | 7,242,354 | $57.29M | No quote | No quote |
| 21 | PRTK | PARATEK PHARMACEUTICALS INC | 0.92% | - | 1,735,218 | $54.24M | No quote | No quote |
| 22 | BXE | BELLATRIX EXPLORATION LTD | 0.90% | Add +20.6% | 21,840,500 | $53.07M | No quote | No quote |
| 23 | AIGWS | AMERICAN INTL GROUP INC | 0.46% | Add +41.1% | 1,254,750 | $27.45M | No quote | No quote |
| 24 | KIN | KINDRED BIOSCIENCES INC | 0.36% | - | 3,013,848 | $21.52M | No quote | No quote |
| 25 | ALDW | ALON USA PARTNERS LP | 0.30% | - | 954,188 | $17.45M | No quote | No quote |
| 26 | AOI | ALLIANCE ONE INTL INC | 0.12% | - | 6,383,641 | $7.02M | No quote | No quote |
| 27 | NCQ | NOVACOPPER INC | 0.06% | - | 6,005,298 | $3.58M | No quote | No quote |
| 28 | ELOS | SYNERON MEDICAL LTD | - | 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 | 48,230,000 | $41.24M |