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 15 of 67 rows. Rows without a quote are marked unavailable.
| 1 | LBTYK | LIBERTY GLOBAL PLC | 11.87% | Reduce -1.1% | 53,971,307 | $1.46B | $27.04 | |
| 2 | INTC | INTEL CORP | 9.93% | Reduce -6.7% | 21,744,950 | $1.22B | $56.14 | |
| 3 | EBAY | EBAY INC. | 8.50% | Reduce -18.7% | 14,890,623 | $1.05B | $70.21 | |
| 4 | QRVO | QORVO INC | 8.49% | Add +2.1% | 5,334,466 | $1.04B | $195.65 | |
| 5 | VSAT | VIASAT INC | 6.60% | - | 16,288,959 | $811.84M | $49.84 | |
| 6 | GOOG | ALPHABET INC | 5.93% | - | 290,930 | $729.16M | $2506.32 | |
| 7 | MU | MICRON TECHNOLOGY INC | 4.95% | Add +32.1% | 7,163,416 | $608.75M | $84.98 | |
| 8 | META | FACEBOOK INC | 4.37% | Add +19.3% | 1,547,000 | $537.91M | $347.71 | |
| 9 | TBIO | TRANSLATE BIO INC | 4.01% | - | 18,044,239 | $493.5M | No quote | No quote |
| 10 | WTW | WILLIS TOWERS WATSON PLC LTD | 3.54% | Reduce -24.3% | 1,891,526 | $435.09M | $230.02 | |
| 11 | IFF | INTERNATIONAL FLAVORS&FRAGRA | 2.55% | - | 2,100,000 | $313.74M | $149.40 | |
| 12 | PCG | PG&E CORP | 2.54% | - | 30,657,601 | $311.79M | $10.17 | |
| 13 | NXST | NEXSTAR MEDIA GROUP INC | 2.46% | Reduce -1.9% | 2,046,000 | $302.56M | No quote | No quote |
| 14 | LSXMK | LIBERTY MEDIA CORP DEL | 2.45% | - | 6,484,867 | $300.83M | No quote | No quote |
| 15 | SSNC | SS&C TECHNOLOGIES HLDGS INC | 1.94% | Reduce -12.9% | 3,316,892 | $239.02M | $72.06 | |
| 16 | PSTH | PERSHING SQUARE TONTINE HLDG | 1.87% | Reduce -20.6% | 10,090,655 | $229.66M | No quote | No quote |
| 17 | VRTV | VERITIV CORP | 1.78% | - | 3,564,439 | $218.93M | No quote | No quote |
| 18 | SJR | SHAW COMMUNICATIONS INC | 1.77% | New | 7,530,807 | $218.13M | No quote | No quote |
| 19 | LBTYA | LIBERTY GLOBAL PLC | 1.69% | - | 7,657,205 | $207.97M | $27.16 | |
| 20 | DBRG | DIGITALBRIDGE GROUP INC | 1.47% | New | 22,877,059 | $180.73M | No quote | No quote |
| 21 | LSXMA | LIBERTY MEDIA CORP DEL | 1.33% | - | 3,500,000 | $163.03M | No quote | No quote |
| 22 | TBPH | THERAVANCE BIOPHARMA INC | 1.17% | Add +13.4% | 9,910,168 | $143.9M | No quote | No quote |
| 23 | VRNT | VERINT SYS INC | 1.11% | - | 3,039,798 | $137M | No quote | No quote |
| 24 | ATRA | ATARA BIOTHERAPEUTICS INC | 1.07% | - | 8,477,488 | $131.83M | No quote | No quote |
| 25 | ADV | ADVANTAGE SOLUTIONS INC | 1.05% | Reduce -2.4% | 12,195,000 | $129.56M | No quote | No quote |
| 26 | IS | IRONSOURCE LTD | 0.65% | New | 8,000,000 | $80.07M | No quote | No quote |
| 27 | NUVB | NUVATION BIO INC | 0.63% | - | 8,623,021 | $77.14M | $8.95 | |
| 28 | RTPY | REINVENT TECHNOLOGY PARTNERS | 0.48% | New | 6,000,000 | $59.34M | No quote | No quote |
| 29 | CGEM | CULLINAN ONCOLOGY INC | 0.38% | - | 1,835,560 | $46.28M | No quote | No quote |
| 30 | AJAX | AJAX I | 0.34% | Reduce -15.5% | 4,223,918 | $42.07M | No quote | No quote |
| 31 | AVAN | AVANTI ACQUISITION CORP | 0.32% | - | 4,000,000 | $38.96M | No quote | No quote |
| 32 | RTP | REINVENT TECHNOLOGY PARTNERS | 0.28% | - | 3,500,000 | $34.93M | No quote | No quote |
| 33 | HZON | HORIZON ACQUISITION CORPORAT | 0.28% | - | 3,499,998 | $34.2M | No quote | No quote |
| 34 | LMACA | LIBERTY MEDIA ACQUISITION CO | 0.26% | - | 3,200,000 | $32.58M | No quote | No quote |
| 35 | TMQ | TRILOGY METALS INC NEW | 0.25% | - | 12,182,568 | $30.58M | No quote | No quote |
| 36 | BSN | BROADSTONE ACQUISITION CORP | 0.24% | - | 2,970,000 | $29.34M | No quote | No quote |
| 37 | GTX | GARRETT MOTION INC | 0.23% | New | 3,575,000 | $28.53M | $7.98 | |
| 38 | AGCB | ALTIMETER GROWTH CORP 2 | 0.21% | - | 2,500,000 | $25.63M | No quote | No quote |
| 39 | IIAC | INVESTINDUSTRIAL ACQUISITION | 0.17% | - | 2,100,000 | $20.5M | No quote | No quote |
| 40 | DGNU | DRAGONEER GROWTH OPT CORP II | 0.16% | - | 2,000,000 | $20M | No quote | No quote |
| 41 | FNCH | FINCH THERAPEUTICS GROUP INC | 0.14% | - | 1,208,159 | $16.69M | No quote | No quote |
| 42 | PSTHWS | PERSHING SQUARE TONTINE HLDG | 0.10% | - | 1,944,444 | $12.25M | No quote | No quote |
| 43 | DGNS | DRAGONEER GROWTH OPPTY CORP | 0.08% | - | 1,000,000 | $10.1M | No quote | No quote |
| 44 | RTPZ | REINVENT TECHNOLOGY PARTNERS | 0.08% | - | 1,000,000 | $9.93M | No quote | No quote |
| 45 | SVFA | SVF INVESTMENT CORP | 0.08% | - | 1,000,000 | $9.88M | No quote | No quote |
| 46 | SKINW | THE BEAUTY HEALTH COMPANY | 0.05% | New | 898,981 | $5.75M | No quote | No quote |
| 47 | J209REORGPYMNT | NOBLE CORP NEW | 0.02% | New | 104,928 | $2.48M | No quote | No quote |
| 48 | AJAXWS | AJAX I | 0.02% | - | 1,250,000 | $2.34M | No quote | No quote |
| 49 | AVANWS | AVANTI ACQUISITION CORP | 0.02% | - | 2,000,000 | $2.08M | No quote | No quote |
| 51 | RBACWS | REDBALL ACQUISITION CORP | 0.01% | - | 1,650,000 | $1.78M | No quote | No quote |
| 50 | BSNWS | BROADSTONE ACQUISITION CORP | 0.01% | - | 1,485,000 | $1.78M | No quote | No quote |
| 52 | RTPWS | REINVENT TECHNOLOGY PARTNERS | 0.01% | - | 875,000 | $1.71M | No quote | No quote |
| 53 | LMACW | LIBERTY MEDIA ACQUISITION CO | 0.01% | - | 640,000 | $1.4M | No quote | No quote |
| 54 | HZONWS | HORIZON ACQUISITION CORPORAT | 0.01% | - | 1,166,666 | $1.37M | No quote | No quote |
| 55 | RTPYW | REINVENT TECHNOLOGY PARTNERS | 0.01% | New | 750,000 | $1.35M | No quote | No quote |
| 56 | IIACWS | INVESTINDUSTRIAL ACQUISITION | 0.01% | - | 700,000 | $707K | No quote | No quote |
| 57 | RTPZWS | REINVENT TECHNOLOGY PARTNERS | 0.00% | - | 200,000 | $362K | No quote | No quote |
| 58 | SVFAW | SVF INVESTMENT CORP | 0.00% | - | 200,000 | $308K | No quote | No quote |
| 66 | VSPRW | VESPER HEALTHCARE ACQSTN COR | - | Sold | 0 | $0 | No quote | No quote |
| 65 | TBA | THOMA BRAVO ADVANTAGE | - | Sold | 0 | $0 | No quote | No quote |
| 64 | RTPYU | REINVENT TECHNOLOGY PARTNERS | - | Sold | 0 | $0 | No quote | No quote |
| 63 | PEAK | HEALTHPEAK PROPERTIES INC | - | Sold | 0 | $0 | No quote | No quote |
| 62 | FOX | FOX CORP | - | Sold | 0 | $0 | No quote | No quote |
| 61 | FOXA | FOX CORP | - | Sold | 0 | $0 | No quote | No quote |
| 60 | FNF | FIDELITY NATIONAL FINANCIAL | - | Sold | 0 | $0 | No quote | No quote |
| 59 | CLNY | COLONY CAP INC NEW | - | Sold | 0 | $0 | No quote | No quote |
Other instruments
Bonds, warrants, or non-share principal positions reported alongside the equity portfolio.
| 1 | TBPH 3.25 11/01/23 | THERAVANCE BIOPHARMA INCNOTE 3.250%11/0 | OTHER | 30,000,000 | $28.56M |