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 17 of 72 rows. Rows without a quote are marked unavailable.
| 1 | INTC | INTEL CORP | 11.91% | Add +28.1% | 23,305,334 | $1.49B | $64.00 | |
| 2 | LBTYK | LIBERTY GLOBAL PLC | 11.12% | - | 54,555,407 | $1.39B | $25.54 | |
| 3 | EBAY | EBAY INC. | 8.96% | Reduce -41.1% | 18,324,423 | $1.12B | $61.24 | |
| 4 | QRVO | QORVO INC | 7.62% | Add +17.7% | 5,224,466 | $954.51M | $182.70 | |
| 5 | VSAT | VIASAT INC | 6.25% | - | 16,288,959 | $783.01M | $48.07 | |
| 6 | GOOG | ALPHABET INC | 4.80% | Add +265.6% | 290,930 | $601.83M | $2068.63 | |
| 7 | WTW | WILLIS TOWERS WATSON PLC LTD | 4.57% | New | 2,500,000 | $572.2M | $228.88 | |
| 8 | MU | MICRON TECHNOLOGY INC | 3.82% | Add +3.9% | 5,423,416 | $478.4M | $88.21 | |
| 9 | META | FACEBOOK INC | 3.05% | Add +41.0% | 1,297,000 | $382.01M | $294.53 | |
| 10 | PCG | PG&E CORP | 2.87% | - | 30,657,601 | $359M | $11.71 | |
| 11 | PSTH | PERSHING SQUARE TONTINE HLDG | 2.44% | - | 12,707,924 | $305.12M | No quote | No quote |
| 12 | TBIO | TRANSLATE BIO INC | 2.36% | - | 18,044,239 | $295.81M | No quote | No quote |
| 13 | IFF | INTERNATIONAL FLAVORS&FRAGRA | 2.34% | New | 2,100,000 | $293.18M | $139.61 | |
| 14 | NXST | NEXSTAR MEDIA GROUP INC | 2.34% | - | 2,085,000 | $292.8M | No quote | No quote |
| 15 | LSXMK | LIBERTY MEDIA CORP DEL | 2.28% | - | 6,484,867 | $286.05M | No quote | No quote |
| 16 | FOXA | FOX CORP | 2.19% | Reduce -65.7% | 7,610,818 | $274.83M | $36.11 | |
| 17 | SSNC | SS&C TECHNOLOGIES HLDGS INC | 2.12% | Add +15.2% | 3,806,892 | $265.99M | $69.87 | |
| 18 | FOX | FOX CORP | 1.58% | - | 5,680,307 | $198.41M | $34.93 | |
| 19 | LBTYA | LIBERTY GLOBAL PLC | 1.57% | - | 7,657,205 | $196.48M | $25.66 | |
| 20 | TBPH | THERAVANCE BIOPHARMA INC | 1.42% | - | 8,735,168 | $178.29M | No quote | No quote |
| 21 | PEAK | HEALTHPEAK PROPERTIES INC | 1.26% | Add +24.2% | 4,966,911 | $157.65M | No quote | No quote |
| 22 | CLNY | COLONY CAP INC NEW | 1.25% | - | 24,212,959 | $156.9M | No quote | No quote |
| 23 | LSXMA | LIBERTY MEDIA CORP DEL | 1.23% | - | 3,500,000 | $154.28M | No quote | No quote |
| 24 | VRTV | VERITIV CORP | 1.21% | - | 3,564,439 | $151.63M | No quote | No quote |
| 25 | ADV | ADVANTAGE SOLUTIONS INC | 1.15% | - | 12,500,000 | $143.61M | No quote | No quote |
| 26 | VRNT | VERINT SYS INC | 1.10% | Add +32.7% | 3,039,798 | $138.28M | No quote | No quote |
| 27 | FNF | FIDELITY NATIONAL FINANCIAL | 0.99% | Reduce -20.1% | 3,036,935 | $123.48M | $40.66 | |
| 28 | ATRA | ATARA BIOTHERAPEUTICS INC | 0.97% | Reduce -6.9% | 8,477,488 | $121.74M | No quote | No quote |
| 29 | NUVB | NUVATION BIO INC | 0.66% | New | 8,623,021 | $82.38M | $9.55 | |
| 30 | CGEM | CULLINAN ONCOLOGY INC | 0.57% | New | 1,835,560 | $71.7M | No quote | No quote |
| 31 | RTPYU | REINVENT TECHNOLOGY PARTNERS | 0.48% | New | 6,000,000 | $60.24M | No quote | No quote |
| 32 | AJAX | AJAX I | 0.41% | New | 5,000,000 | $51.3M | No quote | No quote |
| 33 | TBA | THOMA BRAVO ADVANTAGE | 0.33% | New | 4,000,000 | $41.8M | No quote | No quote |
| 34 | AVAN | AVANTI ACQUISITION CORP | 0.31% | New | 4,000,000 | $39.08M | No quote | No quote |
| 35 | HZON | HORIZON ACQUISITION CORPORAT | 0.28% | New | 3,499,998 | $35.7M | No quote | No quote |
| 36 | RTP | REINVENT TECHNOLOGY PARTNERS | 0.28% | New | 3,500,000 | $35.53M | No quote | No quote |
| 37 | LMACA | LIBERTY MEDIA ACQUISITION CO | 0.26% | New | 3,200,000 | $32.35M | No quote | No quote |
| 38 | BSN | BROADSTONE ACQUISITION CORP | 0.23% | New | 2,970,000 | $29.08M | No quote | No quote |
| 39 | TMQ | TRILOGY METALS INC NEW | 0.21% | - | 12,182,568 | $26.07M | No quote | No quote |
| 40 | AGCB | ALTIMETER GROWTH CORP 2 | 0.21% | New | 2,500,000 | $25.95M | No quote | No quote |
| 41 | IIAC | INVESTINDUSTRIAL ACQUISITION | 0.16% | New | 2,100,000 | $20.48M | No quote | No quote |
| 42 | DGNU | DRAGONEER GROWTH OPT CORP II | 0.16% | New | 2,000,000 | $20.22M | No quote | No quote |
| 43 | FNCH | FINCH THERAPEUTICS GROUP INC | 0.15% | New | 1,208,159 | $18.87M | No quote | No quote |
| 44 | PSTHWS | PERSHING SQUARE TONTINE HLDG | 0.13% | - | 1,944,444 | $15.85M | No quote | No quote |
| 45 | DGNS | DRAGONEER GROWTH OPPTY CORP | 0.08% | - | 1,000,000 | $10.28M | No quote | No quote |
| 46 | SVFA | SVF INVESTMENT CORP | 0.08% | New | 1,000,000 | $10.21M | No quote | No quote |
| 47 | RTPZ | REINVENT TECHNOLOGY PARTNERS | 0.08% | New | 1,000,000 | $10.01M | No quote | No quote |
| 48 | VSPRW | VESPER HEALTHCARE ACQSTN COR | 0.02% | - | 1,320,000 | $2.75M | No quote | No quote |
| 49 | HZONWS | HORIZON ACQUISITION CORPORAT | 0.02% | New | 1,166,666 | $2.39M | No quote | No quote |
| 50 | RBACWS | REDBALL ACQUISITION CORP | 0.02% | - | 1,650,000 | $2.24M | No quote | No quote |
| 51 | AJAXWS | AJAX I | 0.02% | New | 1,250,000 | $2.11M | No quote | No quote |
| 52 | AVANWS | AVANTI ACQUISITION CORP | 0.02% | New | 2,000,000 | $2.1M | No quote | No quote |
| 53 | LMACW | LIBERTY MEDIA ACQUISITION CO | 0.02% | New | 640,000 | $1.93M | No quote | No quote |
| 54 | RTPWS | REINVENT TECHNOLOGY PARTNERS | 0.01% | New | 875,000 | $1.77M | No quote | No quote |
| 55 | BSNWS | BROADSTONE ACQUISITION CORP | 0.01% | New | 1,485,000 | $1.03M | No quote | No quote |
| 56 | IIACWS | INVESTINDUSTRIAL ACQUISITION | 0.00% | New | 700,000 | $574K | No quote | No quote |
| 57 | SVFAW | SVF INVESTMENT CORP | 0.00% | New | 200,000 | $414K | No quote | No quote |
| 58 | RTPZWS | REINVENT TECHNOLOGY PARTNERS | 0.00% | New | 200,000 | $316K | No quote | No quote |
| 71 | VIST | VISTA OIL & GAS SAB DE CV | - | Sold | 0 | $0 | No quote | No quote |
| 70 | PARA | VIACOMCBS INC | - | Sold | 0 | $0 | No quote | No quote |
| 69 | VSPR | VESPER HEALTHCARE ACQSTN COR | - | Sold | 0 | $0 | No quote | No quote |
| 68 | RTPZU | REINVENT TECHNOLOGY PARTNERS | - | Sold | 0 | $0 | No quote | No quote |
| 67 | RTPU | REINVENT TECHNOLOGY PARTNERS | - | Sold | 0 | $0 | No quote | No quote |
| 66 | RBAC | REDBALL ACQUISITION CORP | - | Sold | 0 | $0 | No quote | No quote |
| 65 | RADI | RADIUS GLOBAL INFRASTRCTRE I | - | Sold | 0 | $0 | No quote | No quote |
| 64 | MPC | MARATHON PETE CORP | - | Sold | 0 | $0 | No quote | No quote |
| 63 | IIACU | INVESTINDUSTRIAL ACQUISITION | - | Sold | 0 | $0 | No quote | No quote |
| 62 | HZONU | HORIZON ACQUISITION CORPORAT | - | Sold | 0 | $0 | No quote | No quote |
| 61 | BSNU | BROADSTONE ACQUISITION CORP | - | Sold | 0 | $0 | No quote | No quote |
| 60 | AVANU | AVANTI ACQUISITION CORP | - | Sold | 0 | $0 | No quote | No quote |
| 59 | AJAXU | AJAX I | - | 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 | $30.58M |