SEABOARD CORP (SEB) Institutional Shareholders
SEABOARD CORP (SEB) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $1.33B in SEB holdings during the latest filing period.
Dimensional Fund Advisors Lp is currently the largest disclosed institutional shareholder of SEB tracked by InsiderSet, reporting ownership valued at approximately $266.22M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $207.81M, representing an estimated loss of -21.94% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 63% of the total disclosed SEB value among the investors covered in this analysis. Major shareholders include Dimensional Fund Advisors Lp, Blackrock, Inc., Vanguard Portfolio Management Llc, and several other long-term asset managers with concentrated positions in SEABOARD CORP (SEB).
This page ranks the largest institutional SEB shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
204
Total Reported Value
$1.33B
Largest Holder
Dimensional Fund Advisors Lp
Largest Position
$266.22M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
153
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Dimensional Fund Advisors Lp | 0.06% | 47,087 | $266,221,577 | $207,807,174 | -$58,414,403 | -21.94% | |
| Blackrock, Inc. | 0.00% | 24,045 | $135,950,925 | $106,116,837 | -$29,834,088 | -21.94% | |
| Vanguard Portfolio Management Llc | 0.01% | 19,336 | $109,326,131 | $85,334,795 | -$23,991,336 | -21.94% | |
| Arrowstreet Capital, Limited Partnership | 0.04% | 12,332 | $69,725,375 | $54,424,322 | -$15,301,053 | -21.94% | |
| Vanguard Capital Management Llc | 0.00% | 10,939 | $61,849,325 | $48,276,651 | -$13,572,674 | -21.94% | |
| Aqr Capital Management Llc | 0.02% | 7,791 | $44,048,417 | $34,383,709 | -$9,664,708 | -21.94% | |
| American Century Companies Inc | 0.02% | 7,450 | $42,122,449 | $32,878,787 | -$9,243,662 | -21.94% | |
| Wallace Capital Management Inc. | 4.80% | 7,396 | $41,817,929 | $32,640,471 | -$9,177,458 | -21.95% | |
| Charles Schwab Investment Management Inc | 0.01% | 6,036 | $34,127,665 | $26,638,437 | -$7,489,228 | -21.94% | |
| Kahn Brothers Group | Thomas Graham, Alan, Irving Kahns | 5.88% | 5,871 | $33,194,751 | $25,910,249 | -$7,284,502 | -21.94% |
| Private Management Group Inc | 0.75% | 6,370 | $28,437,782 | $28,112,466 | -$325,316 | -1.14% | |
| Geode Capital Management, Llc | 0.00% | 4,916 | $27,802,639 | $21,695,586 | -$6,107,053 | -21.97% | |
| Morgan Stanley | 0.00% | 4,627 | $26,161,436 | $20,420,154 | -$5,741,282 | -21.95% | |
| State Street Corp | 0.00% | 4,588 | $25,940,644 | $20,248,037 | -$5,692,607 | -21.94% | |
| Two Sigma Investments, Lp | 0.02% | 4,405 | $24,905,958 | $19,440,410 | -$5,465,548 | -21.94% | |
| Renaissance Technologies LLC | Jim Simons | 0.03% | 3,252 | $18,386,873 | $14,351,922 | -$4,034,951 | -21.94% |
| Twin Lions Management Llc | 10.80% | 3,162 | $17,878,011 | $13,954,728 | -$3,923,283 | -21.94% | |
| Cwa Asset Management Group, Llc | 0.48% | 3,495 | $15,602,842 | $15,424,344 | -$178,498 | -1.14% | |
| Qube Research & Technologies Ltd | 0.02% | 2,554 | $14,440,367 | $11,271,466 | -$3,168,901 | -21.94% | |
| Barclays Plc | 0.00% | 2,205 | $12,467,114 | $9,731,238 | -$2,735,876 | -21.94% | |
| Invesco Ltd. | 0.00% | 1,994 | $11,274,115 | $8,800,040 | -$2,474,075 | -21.94% | |
| Bank Of New York Mellon Corp | 0.00% | 1,897 | $10,723,310 | $8,371,954 | -$2,351,356 | -21.93% | |
| Citadel Advisors Llc | 0.01% | 1,848 | $10,448,629 | $8,155,704 | -$2,292,925 | -21.94% | |
| Susquehanna Portfolio Strategies, Llc | 0.14% | 1,692 | $9,566,602 | $7,467,236 | -$2,099,366 | -21.94% | |
| Vanguard Fiduciary Trust Co | 0.00% | 1,596 | $9,023,816 | $7,043,563 | -$1,980,253 | -21.94% | |
| Corient Private Wealth Llc | 0.01% | 1,542 | $8,718,502 | $6,805,247 | -$1,913,255 | -21.94% | |
| Quadrature Capital Ltd | 0.10% | 1,481 | $8,373,604 | $6,536,038 | -$1,837,566 | -21.94% | |
| Aquatic Capital Management Llc | 0.24% | 1,458 | $8,243,561 | $6,434,533 | -$1,809,028 | -21.94% | |
| Hennessy Advisors Inc | 0.26% | 1,800 | $8,035,794 | $7,943,868 | -$91,926 | -1.14% | |
| Cerity Partners Llc | 0.01% | 1,397 | $7,898,676 | $6,165,324 | -$1,733,352 | -21.94% | |
| Northern Trust Corp | 0.00% | 1,361 | $7,695,121 | $6,006,447 | -$1,688,674 | -21.94% | |
| Victory Capital Management Inc | 0.00% | 1,273 | $7,197,567 | $5,618,080 | -$1,579,487 | -21.94% | |
| Millennium Management Llc | 0.00% | 1,174 | $6,637,819 | $5,181,167 | -$1,456,652 | -21.94% | |
| Goldman Sachs Group Inc | 0.00% | 1,165 | $6,586,933 | $5,141,448 | -$1,445,485 | -21.94% | |
| D. E. Shaw & Co., Inc. | 0.01% | 1,137 | $6,428,621 | $5,017,877 | -$1,410,744 | -21.94% | |
| Creative Planning | 0.00% | 1,110 | $6,275,962 | $4,898,719 | -$1,377,243 | -21.94% | |
| First Trust Advisors Lp | 0.00% | 1,053 | $5,953,683 | $4,647,163 | -$1,306,520 | -21.94% | |
| Ubs Group Ag | 0.00% | 1,003 | $5,670,982 | $4,426,500 | -$1,244,482 | -21.94% | |
| Heartland Advisors Inc | 0.29% | 1,000 | $5,654,020 | $4,413,260 | -$1,240,760 | -21.94% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | 805 | $4,551,486 | $3,552,674 | -$998,812 | -21.94% | |
| Maverick Capital Ltd | 0.05% | 741 | $4,189,629 | $3,270,226 | -$919,403 | -21.94% | |
| Quantinno Capital Management Lp | 0.01% | 683 | $3,861,741 | $3,014,257 | -$847,484 | -21.95% | |
| Neuberger Berman Group Llc | 0.00% | 645 | $3,646,843 | $2,846,553 | -$800,290 | -21.94% | |
| Dark Forest Capital Management Lp | 0.32% | 628 | $3,550,725 | $2,771,527 | -$779,198 | -21.94% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 613 | $3,465,914 | $2,705,328 | -$760,586 | -21.94% | |
| Vanguard Global Advisers, Llc | 0.00% | 601 | $3,398,066 | $2,652,369 | -$745,697 | -21.94% | |
| Occudo Quantitative Strategies Lp | 0.18% | 597 | $3,394,500 | $2,634,716 | -$759,784 | -22.38% | |
| Oak Thistle Llc | 0.32% | 751 | $3,352,712 | $3,314,358 | -$38,354 | -1.14% | |
| Swiss National Bank | 0.00% | 575 | $3,251,062 | $2,537,625 | -$713,438 | -21.94% | |
| Bank Of America Corp | 0.00% | 556 | $3,143,635 | $2,453,773 | -$689,862 | -21.94% |
Frequently asked questions about SEB
Who owns the most SEB stock?
The largest holders of SEB are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for SEABOARD CORP (SEB).
Is SEB widely held by superinvestors?
Many widely followed stocks like SEB appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly SEB is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.