SeaboardSEB
13F holders, Q1 2026 (March 31)208holders +10
35new positions
26sold out
7famous investors
$5652.33avg. 13F price*
At the end of Q1 2026, 208 institutions reported holding Seaboard Corp. (SEB) in their 13F filings, up 10 from Q4 2025. 35 opened new positions and 26 sold out. The largest holders were Dimensional Fund Advisors LP ($266.2M), BlackRock, Inc. ($136.0M) and Vanguard Portfolio Management LLC ($109.3M). 7 famous investors held it, including Lee Ainslie (0.0% of Maverick Capital's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Cliff Asness (0.0% of AQR Capital Management's portfolio).
- Company
- Seaboard Corp.
- CUSIP
- 811543107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 35 | $50.1M |
| Exits | 26 | $29.3M |
All 13F filers, Q4 2025 → Q1 2026: 38,341 shares bought and 21,878 shares sold, net +16,463 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 208 holders
| Dimensional Fund Advisors LP | 0.06% | Add +4.5% | 47,087 | $266.2M |
| BlackRock, Inc. | 0.00% | Add +3.5% | 24,045 | $136.0M |
| Vanguard Portfolio Management LLC | 0.01% | — | 19,336 | $109.3M |
| Arrowstreet Capital, Limited Partnership | 0.04% | Add +238.0% | 12,332 | $69.7M |
| Vanguard Capital Management LLC | 0.00% | — | 10,939 | $61.8M |
| AQR Capital Management | 0.02% | Add +62.5% | 7,791 | $44.0M |
| Private Management Group Inc. | 1.22% | Reduce -22.7% | 7,519 | $42.5M |
| American Century Companies Inc. | 0.02% | Add +15.2% | 7,450 | $42.1M |
| Wallace Capital Management Inc. | 4.80% | Reduce -4.1% | 7,396 | $41.8M |
| Charles Schwab Investment Management Inc. | 0.01% | Reduce -2.5% | 6,036 | $34.1M |
| Kahn Brothers Group Inc. | 5.88% | Reduce -19.4% | 5,871 | $33.2M |
| Geode Capital Management, LLC | 0.00% | Add +13.7% | 4,916 | $27.8M |
| Morgan Stanley | 0.00% | Add +20.9% | 4,627 | $26.2M |
| State Street Corp. | 0.00% | Add +0.0% | 4,588 | $25.9M |
| Two Sigma Investments, LP | 0.02% | Add +138.4% | 4,405 | $24.9M |
| CWA Asset Management Group, LLC | 0.68% | New | 3,528 | $19.9M |
| Renaissance Technologies | 0.03% | Reduce -36.3% | 3,252 | $18.4M |
| Twin Lions Management LLC | 10.80% | Reduce -28.1% | 3,162 | $17.9M |
| Qube Research & Technologies Ltd | 0.02% | Add +18.8% | 2,554 | $14.4M |
| Barclays PLC | 0.00% | Reduce -14.5% | 2,205 | $12.5M |
| Invesco Ltd. | 0.00% | Add +29.6% | 1,994 | $11.3M |
| Bank of New York Mellon Corp | 0.00% | Add +4.6% | 1,897 | $10.7M |
| Citadel Advisors | 0.01% | Add +67.1% | 1,848 | $10.4M |
| Susquehanna Portfolio Strategies, LLC | 0.14% | Add +118.6% | 1,692 | $9.6M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 1,596 | $9.0M |
| Corient Private Wealth LP | 0.01% | Add +47.6% | 1,542 | $8.7M |
| Quadrature Capital Ltd | 0.10% | New | 1,481 | $8.4M |
| Aquatic Capital Management LLC | 0.24% | Add +307.3% | 1,458 | $8.2M |
| Cerity Partners LLC | 0.01% | Reduce -7.5% | 1,397 | $7.9M |
| Northern Trust Corp. | 0.00% | Add +5.1% | 1,361 | $7.7M |
| Victory Capital Management Inc. | 0.00% | Add +492.1% | 1,273 | $7.2M |
| Millennium Management | 0.01% | Add +214.8% | 1,174 | $6.6M |
| Goldman Sachs Group Inc. | 0.00% | Add +5.2% | 1,165 | $6.6M |
| Robeco Institutional Asset Management B.V. | 0.01% | New | 1,164 | $6.6M |
| D. E. Shaw & Co. | 0.01% | Reduce -19.0% | 1,137 | $6.4M |
| JPMorgan Chase & Co. | 0.00% | Add +72.6% | 1,160 | $6.4M |
| Creative Planning | 0.00% | Add +12.2% | 1,110 | $6.3M |
| First Trust Advisors LP | 0.00% | Reduce -9.3% | 1,053 | $6.0M |
| UBS Group AG | 0.00% | Add +120.4% | 1,003 | $5.7M |
| Heartland Advisors Inc. | 0.29% | Reduce -50.0% | 1,000 | $5.7M |
| State of Alaska, Department of Revenue | 0.06% | No change | 983 | $5.6M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | Reduce -13.1% | 805 | $4.6M |
| Maverick Capital | 0.05% | Add +6.9% | 741 | $4.2M |
| OP Asset Management Ltd | 0.04% | New | 720 | $4.1M |
| Bessemer Group Inc. | 0.01% | No change | 709 | $4.0M |
| Quantinno Capital Management LP | 0.01% | Add +200.9% | 683 | $3.9M |
| Neuberger Berman Group LLC | 0.00% | Reduce -1.4% | 645 | $3.6M |
| Dark Forest Capital Management LP | 0.32% | Reduce -30.1% | 628 | $3.6M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +0.2% | 613 | $3.5M |
| Vanguard Global Advisers, LLC | 0.00% | — | 601 | $3.4M |
| Occudo Quantitative Strategies LP | 0.18% | Reduce -52.4% | 597 | $3.4M |
| Swiss National Bank | 0.00% | Add +1.8% | 575 | $3.3M |
| Acadian Asset Management LLC | 0.00% | Reduce -22.8% | 563 | $3.2M |
| Bank of America Corp. | 0.00% | Reduce -9.2% | 556 | $3.1M |
| Nuveen, LLC | 0.00% | Add +10.6% | 520 | $2.9M |
| FMR LLC | 0.00% | Reduce -2.9% | 508 | $2.9M |
| New York State Common Retirement Fund | 0.00% | No change | 502 | $2.8M |
| Factorial Partners, LLC | 2.01% | Reduce -59.4% | 489 | $2.8M |
| Algert Global LLC | 0.04% | Reduce -9.6% | 470 | $2.7M |
| Rhumbline Advisers | 0.00% | Add +0.2% | 466 | $2.6M |
| Wells Fargo & Company | 0.00% | Add +3633.3% | 448 | $2.5M |
| ExodusPoint Capital Management, LP | 0.02% | Add +395.3% | 421 | $2.4M |
| Franklin Resources Inc. | 0.00% | Reduce -9.9% | 408 | $2.3M |
| Schonfeld Strategic Advisors LLC | 0.02% | Reduce -19.0% | 376 | $2.1M |
| California State Teachers Retirement System | 0.00% | Add +36.9% | 367 | $2.1M |
| Choate Investment Advisors | 0.04% | Add +213.9% | 361 | $2.0M |
| Legal & General Group Plc | 0.00% | Reduce -11.1% | 330 | $1.9M |
| Caxton Associates LLP | 0.04% | Add +135.0% | 329 | $1.9M |
| Entropy Technologies, LP | 0.08% | Add +92.0% | 313 | $1.8M |
| Mariner, LLC | 0.00% | Reduce -37.8% | 294 | $1.7M |
| Citigroup Inc. | 0.00% | Reduce -8.2% | 281 | $1.6M |
| Garner Asset Management Corp | 0.61% | Reduce -11.8% | 277 | $1.6M |
| Marshall Wace, LLP | 0.00% | Reduce -78.1% | 277 | $1.6M |
| KLP Kapitalforvaltning As | 0.01% | No change | 275 | $1.6M |
| SummerHaven Investment Management, LLC | 0.92% | Reduce -7.0% | 264 | $1.5M |
| HSBC Holdings PLC | 0.00% | Reduce -65.4% | 252 | $1.4M |
| Wedmont Private Capital | 0.05% | Add +0.4% | 242 | $1.4M |
| Susquehanna International Group, LLP | 0.00% | Reduce -20.2% | 225 | $1.3M |
| Alliancebernstein L.P. | 0.00% | Add +418.2% | 285 | $1.3M |
| State Board of Administration of Florida Retirement System | 0.00% | Reduce -60.4% | 221 | $1.2M |
| HB Wealth Management, LLC | 0.01% | Add +8.4% | 219 | $1.2M |
| FAS Wealth Partners, Inc. | 0.07% | No change | 205 | $1.2M |
| Holistic Financial Partners | 0.42% | No change | 200 | $1.1M |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | — | 187 | $1.1M |
| SG Americas Securities, LLC | 0.00% | Reduce -42.1% | 186 | $1.1M |
| Deutsche Bank AG | 0.00% | Add +1.7% | 182 | $1.0M |
| Oak Thistle LLC | 0.10% | New | 177 | $1.0M |
| Brevan Howard Capital Management LP | 0.01% | Add +250.0% | 175 | $989K |
| GMO | 0.00% | New | 175 | $989K |
| Sei Investments Co. | 0.00% | Add +13.0% | 174 | $984K |
| Sequoia Financial Advisors, LLC | 0.01% | Reduce -3.6% | 160 | $905K |
| Squarepoint Ops LLC | 0.00% | New | 156 | $882K |
| CIBC Bancorp USA Inc. | 0.00% | — | 152 | $859K |
| Panagora Asset Management Inc. | 0.00% | No change | 143 | $809K |
| BNP Paribas Financial Markets | 0.00% | Reduce -55.1% | 141 | $797K |
| Commonwealth Equity Services, LLC | 0.00% | Reduce -44.8% | 139 | $786K |
| Thrivent Financial for Lutherans | 0.00% | New | 133 | $752K |
| T. Rowe Price Associates Inc. | 0.00% | Add +14.7% | 133 | $752K |
| Autumn Glory Partners, LLC | 0.27% | No change | 130 | $735K |
| Janus Henderson Group PLC | 0.00% | No change | 128 | $725K |
"% of holder's portfolio" is SEB's weight in each manager's 13F, not the share of Seaboard Corp. the manager owns.