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 5 of 23 rows. Rows without a quote are marked unavailable.
| 1 | MU | MICRON TECHNOLOGY INC | 29.54% | - | 51,655,434 | $1.22B | $23.66 | No quote |
| 2 | VSAT | VIASAT INC | 19.02% | Add +2.4% | 11,395,900 | $786.77M | $69.04 | No quote |
| 3 | THRX | THERAVANCE INC | 15.49% | Add +2.8% | 20,705,801 | $640.64M | No quote | No quote |
| 4 | LNG | CHENIERE ENERGY INC | 7.57% | New | 5,660,000 | $313.28M | No quote | No quote |
| 5 | IDIX | IDENIX PHARMACEUTICALS INC | 7.32% | Add +44.5% | 53,331,109 | $302.84M | No quote | No quote |
| 6 | BP | BP PLC | 3.68% | Reduce -44.1% | 3,166,413 | $152.3M | $48.10 | No quote |
| 7 | PBF | PBF ENERGY INC | 3.38% | Add +174.0% | 5,416,606 | $139.75M | $25.80 | No quote |
| 8 | KERX | KERYX BIOPHARMACEUTICALS INC | 2.60% | New | 6,310,850 | $107.54M | No quote | No quote |
| 9 | NG | NOVAGOLD RES INC | 1.89% | - | 21,688,300 | $78.3M | $3.61 | No quote |
| 10 | IMOS | CHIPMOS TECH BERMUDA LTD | 1.75% | - | 3,283,235 | $72.43M | No quote | No quote |
| 11 | CWSA | CITIGROUP INC | 1.62% | - | 104,246,007 | $66.93M | No quote | No quote |
| 12 | RFMD | RF MICRODEVICES INC | 1.25% | New | 6,585,000 | $51.89M | No quote | No quote |
| 13 | TQNT | TRINQUINT SEMICONDUCTOR INC | 1.24% | New | 3,825,000 | $51.22M | No quote | No quote |
| 14 | KIN | KINDRED BIOSCIENCES INC | 1.24% | Reduce -4.7% | 2,763,848 | $51.21M | No quote | No quote |
| 15 | ELOS | SYNERON MEDICAL LTD | 1.20% | - | 4,000,000 | $49.8M | No quote | No quote |
| 16 | AOI | ALLIANCE ONE INTL INC | 0.45% | - | 6,383,641 | $18.64M | No quote | No quote |
| 17 | AIGWS | AMERICAN INTL GROUP INC | 0.32% | - | 656,443 | $13.42M | No quote | No quote |
| 18 | NCQ | NOVACOPPER INC | 0.16% | - | 5,005,298 | $6.76M | No quote | No quote |
| 19 | AVEO | AVEO PHARMACEUTICALS INC | 0.14% | - | 3,829,350 | $5.73M | No quote | No quote |
| 20 | ALDW | ALON USA PARTNERS LP | 0.13% | - | 329,188 | $5.48M | No quote | No quote |
| 23 | ROVI | ROVI CORP | - | Sold | 0 | $0 | No quote | No quote |
| 22 | FNF | FIDELITY NATIONAL FINANCIAL | - | Sold | 0 | $0 | No quote | No quote |
| 21 | ENZN | ENZON PHARMACEUTICALS INC | - | Sold | 0 | $0 | No quote | No quote |