Comparable stake leader
SEABOARD FLOUR LLC
SEC ownership of SEABOARD CORP /DE/
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000088121.
Disclosed value leader
SEABOARD FLOUR LLC
Comparable rows
0/50
Latest evidence
31 Mar 2026
- Public ticker
- SEB on NYSE
- Parsed ownership sources
- 3/4/5 and 13F
- Largest SEC-reported holder
- SEABOARD FLOUR LLC
- Latest parsed ownership date
- 31 Mar 2026
- Issuer CIK
- 0000088121
- Issuer location
- Shawnee Mission, KS
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
1 signal
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of SEABOARD CORP /DE/ (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
SEABOARD FLOUR LLC
Disclosed value leader
SEABOARD FLOUR LLC
Comparable rows
0/50
Latest evidence
31 Mar 2026
3/4/5
13F
Highest disclosed value: $2,252,538,822
50 rows are not safely comparable across share classes.
Showing 1-8 of 50 holder rows.
Quick read
SEABOARD FLOUR LLC has the largest disclosed position value at $2.25B.
0 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens SEABOARD FLOUR LLC's linked filing trail.
Disclosed position value
Top 5
SEABOARD FLOUR LLC
$2.25B
DIMENSIONAL FUND ADVISORS LP
$266.22M
BlackRock, Inc.
$135.95M
VANGUARD PORTFOLIO MANAGEMENT LLC
$109.33M
ARROWSTREET CAPITAL, LIMITED PART...
$69.73M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| SEABOARD FLOUR LLC |
3/4/5
Director, 10%+ Owner
|
—
class O/S missing
|
$2,252,538,822
712,265 shares
|
— | 09 Oct 2023 |
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
—
class O/S missing
|
$266,221,577
47,087 shares
|
— | 31 Mar 2026 |
| BlackRock, Inc. |
13F
Company
|
—
class O/S missing
|
$135,950,925
24,045 shares
|
— | 31 Mar 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
Company
|
—
class O/S missing
|
$109,326,131
19,336 shares
|
— | 31 Mar 2026 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP |
13F
Company
|
—
class O/S missing
|
$69,725,375
12,332 shares
|
— | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
—
class O/S missing
|
$61,849,325
10,939 shares
|
— | 31 Mar 2026 |
| AQR CAPITAL MANAGEMENT LLC |
13F
Company
|
—
class O/S missing
|
$44,048,417
7,791 shares
|
— | 31 Mar 2026 |
| PRIVATE MANAGEMENT GROUP INC |
13F
Company
|
—
class O/S missing
|
$42,512,576
7,519 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 07 Jun 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-6 of 6 reporting-owner rows connected to SEABOARD CORP /DE/. Open a relationship link for the CIK-to-CIK filing trail.
Rows
6
Largest Forms 3/4/5 holder
SEABOARD FLOUR LLC
Net 12M change
$0
Latest report
12 Feb 2025
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| SEABOARD FLOUR LLC | Director, 10%+ Owner | $2,252,538,822 | Mixed | 09 Oct 2023 | ||
| Andrew H. Johnson | Assistant Secretary | Mixed | 22 Apr 2024 | |||
| Chad M. Groves | Pres. & CEO, Seaboard Foods | Mixed | 01 Jul 2024 | |||
| Peter P. Ostenfeld-Rosenthal | Pres. & CEO, Seaboard Energy | Mixed | 12 Feb 2025 | |||
| Barbara M. Smith | Interim Controller and PAO | Mixed | 03 Mar 2023 | |||
| Laura P. Cerezo Baena | Assistant Secretary | Mixed | 24 Apr 2023 |
Recent insider transactions for SEABOARD CORP /DE/
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| No insider transactions were found in the last 12 months for this issuer. | ||||||||||
* marks a reported price that did not pass the local price check.