DOSSIER · 13F Holders · Q1 2026Most-boughtAI cap-ex
SEB

SEABOARD CORP DEL

212 institutions still hold SEABOARD CORP DEL as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 811543107·212 13F holders·last filed Mar 31, 2026
Market cap
2.0%
vs prior quarter
13F value held
$1.1B
69.0% inst. owned
of float
Holders
212
+61 QoQ
filers reporting
Activity
+13 / −107
+942 added · −758 reduced
this quarter
Concentration
24.91%
DIMENSIONAL FUND ADVISORS LP #1
top holder share
AI Holders Summary · Q1 2026

212 institutions reported SEB in Q1 2026. DIMENSIONAL FUND ADVISORS LP leads at 24.9% of the visible book. +61 net new institutions vs prior quarter — accumulation reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$266M47K0.06%Q1 2026
02
BlackRock, Inc.
CIK 0002012383
$136M24K0.00%Q1 2026
03
Vanguard Portfolio Management
CIK 0002100121
$109M19K0.01%Q1 2026
04
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
$70M12K0.04%Q1 2026
05
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$62M11K0.00%Q1 2026
06
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$44M8K0.02%Q1 2026
07
PRIVATE MANAGEMENT GROUP INC
CIK 0001142031
$43M8K1.22%Q1 2026
08
AMERICAN CENTURY COMPANIES INC
CIK 0000748054
$42M7K0.02%Q1 2026
09
Wallace Capital Management Inc.
CIK 0001459754
$42M7K4.80%Q1 2026
10
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$34M6K0.01%Q1 2026
11
KAHN BROTHERS GROUP INC
CIK 0001039565
$33M6K5.88%Q1 2026
12
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$28M5K0.00%Q1 2026
13
MORGAN STANLEY
CIK 0000895421
$26M5K0.00%Q1 2026
14
STATE STREET CORP
CIK 0000093751
$26M5K0.00%Q1 2026
15
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$25M4K0.02%Q1 2026
16
CWA Asset Management Group, LLC
CIK 0001667134
$20M4K0.68%Q1 2026
17
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$18M3K0.03%Q1 2026
18
Twin Lions Management LLC
CIK 0002055318
$18M3K10.80%Q1 2026
19
Qube Research & Technologies Ltd
CIK 0001729829
$14M3K0.02%Q1 2026
20
BARCLAYS PLC
CIK 0000312069
$12M2K0.00%Q1 2026
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