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as of 08-06-2026 3:29pm EST

$4,187.27
$116.40
-2.70%
Stocks Industrials Farming/Seeds/Milling Nasdaq

Seaboard Corp is a diversified group of companies that operate in agricultural, energy, and ocean transport businesses. The company is engaged in hog production, biofuel production, and pork processing in the United States; commodity trading and grain processing in Africa and South America; cargo shipping services in the U.S., Caribbean and Central and South America; sugar and alcohol production in Argentina; and electric power generation in the Dominican Republic. It also has an equity method investment in Butterball, LLC, a producer and processor of turkey products. The group's operating segments are; pork, commodity trading and milling, marine, liquid fuels, power, turkey, and others. It operates in 45 countries, with a concentration in the Caribbean, Central and South American region.

Founded: 1918 Country:
United States
United States
Employees: N/A City: SHAWNEE MISSION
Market Cap: 4.3B IPO Year: 1994
Target Price: N/A AVG Volume (30 days): 3.3K
Analyst Decision: N/A Number of Analysts: N/A
Dividend Yield:
0.17%
Dividend Payout Frequency: semi-annual
EPS: 283.99 EPS Growth: 467.71
52 Week Low/High: $3140.01 - $5989.37 Next Earning Date: 05-12-2026
Revenue: $5,809,000,000 Revenue Growth: 7.99%
Revenue Growth (this year): N/A Revenue Growth (next year): N/A
P/E Ratio: 15.07 Index: N/A
Free Cash Flow: 6.0M FCF Growth: -25.00%

AI-Powered SEB Daily Prediction

Machine learning model trained on 25+ technical indicators

Updated 2 days ago

AI Recommendation

hold
Model Accuracy: 71.35%
71.35%
Confidence

Disclaimer: This prediction is generated by an AI model and should not be considered as financial advice. Always conduct your own research and consult with financial professionals before making investment decisions.

Earnings Transcripts

SEC 8-K filings with transcript text

View All
2026
Q2

Q2 2026 Earnings

8-K BUY

Aug 4, 2026 · 96% conf.

AI Prediction BUY

1D

+1.29%

$4449.02

Act: -2.02%

5D

+6.30%

$4669.19

20D

+9.98%

$4830.89

Price: $4392.35 Prob +5D: 98% AUC: 1.000
0000088121-26-000052

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2026
Q1

Q1 2026 Earnings

8-K SELL

May 5, 2026 · 100% conf.

AI Prediction SELL

1D

-1.41%

$5597.13

Act: -13.62%

5D

-4.72%

$5408.89

Act: -18.27%

20D

-3.89%

$5456.25

Act: -7.38%

Price: $5676.89 Prob +5D: 0% AUC: 1.000
0000088121-26-000042

EX-99.1

2 seb-20260505xex99d1.htm

PRESS RELEASE

Exhibit 99.1

PRESS RELEASE

REPORT OF EARNINGS AND DIVIDEND DECLARATION

May 5, 2026

Merriam, Kansas

The following is a report of earnings for Seaboard Corporation (NYSE American symbol: SEB), with offices at 9000 West 67th Street, Merriam, Kansas, for the three months ended April 4, 2026 and March 29, 2025, in millions of dollars except share and per share amounts.

Three Months Ended

April 4,

March 29,

​ ​ ​

2026

​ ​ ​

2025

Net sales

$

2,400

$

2,316

Operating income

$

96

$

38

Net earnings attributable to Seaboard

$

119

$

32

Earnings per common share

$

124.24

$

32.95

Average number of shares outstanding

957,794

971,055

Dividends declared per common share

$

2.25

$

2.25

Seaboard Corporation today filed its Quarterly Report on Form 10-Q with the United States Securities and Exchange Commission. Seaboard Corporation has provided access to the Quarterly Report on Form 10-Q on its website at https://www.seaboardcorp.com/investors.

Also, Seaboard Corporation announced today that its Board of Directors has authorized and declared a quarterly cash dividend of $2.25 per share of its common stock. The dividend is payable on May 25, 2026 to stockholders of record at the close of business on May 15, 2026.

2025
Q4

Q4 2025 Earnings

8-K BUY

Feb 12, 2026 · 100% conf.

AI Prediction BUY

1D

+1.32%

$5661.28

Act: -3.83%

5D

+6.44%

$5947.27

Act: -11.71%

20D

+10.19%

$6157.30

Act: -10.05%

Price: $5587.66 Prob +5D: 100% AUC: 1.000
0000088121-26-000010

Seaboard Corporation_February 12, 2026 0000088121false00000881212026-02-122026-02-12

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ​

Date of Report (Date of earliest event reported)

February 12, 2026

​ Seaboard Corporation (Exact name of registrant as specified in its charter) ​

Delaware ​ 1-3390 ​ 04-2260388

(State or other jurisdiction of ​ (Commission ​ (I.R.S. Employer

incorporation)

File Number)

Identification No.)

​ ​

9000 West 67th Street, Merriam, Kansas 66202

(Address of principal executive offices)

(Zip Code)

​ ​

Registrant’s telephone number including area code

(913) 676-8928

​ Not Applicable (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: ​

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock $1.00 Par Value SEB NYSE American

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐ ​ ​

Item 2.02 Results of Operations and Financial Condition On February 12, 2026, Seaboard Corporation (the “Registrant”) issued a press release announcing earnings for the quarter and year ended December 31, 2025, and the Board of Directors’ declaration of a quarterly cash dividend of $2.25 per share of common stock, payable on March 5, 2026, to stockholders of record at the close of business on February 23, 2026. The full text of this press release is included as Exhibit 99.1 to this Current Report on Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information furnished pursuant to Item 2.02, and the related press release included as Exhibit 99.1 to this Current Report, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. Item 9.01 Financial Statements and Exhibits Exhibits 99.1 Press release of Seaboard Corporation dated February 12, 2026 announcing earnings for the quarter and year ended December 31, 2025 and a declaration of a dividend. 104 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. ​ ​

​ ​ ​ Date: February 12, 2026

​ ​ ​ ​ ​

​ ​ ​ Seaboard Corporation

​ ​ ​ ​ (Registrant)

​ ​ ​ ​ ​

​ ​ ​ By: /s/ David H. Rankin

​ ​ ​ ​ David H. Rankin Executive Vice President, Chief Financial Officer ​

​ ​ ​ ​ (principal financial officer)

​ ​ ​ ​ ​

3

2025
Q3

Q3 2025 Earnings

8-K

Oct 28, 2025

0000088121-25-000077

Seaboard Corporation_October 28, 2025 0000088121false00000881212025-10-282025-10-28

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ​

Date of Report (Date of earliest event reported)

October 28, 2025

​ Seaboard Corporation (Exact name of registrant as specified in its charter) ​

Delaware ​ 1-3390 ​ 04-2260388

(State or other jurisdiction of ​ (Commission ​ (I.R.S. Employer

incorporation)

File Number)

Identification No.)

​ ​

9000 West 67th Street, Merriam, Kansas 66202

(Address of principal executive offices)

(Zip Code)

​ ​

Registrant’s telephone number including area code

(913) 676-8928

​ Not Applicable (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: ​

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock $1.00 Par Value SEB NYSE American

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐ ​ ​

Item 2.02 Results of Operations and Financial Condition On October 28, 2025, Seaboard Corporation (the “Registrant”) issued a press release announcing earnings for the three and nine months ended September 27, 2025, and the Board of Directors’ declaration of a quarterly cash dividend of $2.25 per share of common stock, payable on November 17, 2025, to stockholders of record at the close of business on November 7, 2025. The full text of this press release is included as Exhibit 99.1 to this Current Report on Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information furnished pursuant to Item 2.02, and the related press release included as Exhibit 99.1 to this Current Report, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. Item 9.01 Financial Statements and Exhibits Exhibits 99.1 Press release of Seaboard Corporation dated October 28, 2025 announcing earnings for the three and nine months ended September 27, 2025 and a declaration of a dividend. 104 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. ​ ​

​ ​ ​ Date: October 28, 2025

​ ​ ​ ​ ​

​ ​ ​ Seaboard Corporation

​ ​ ​ ​ (Registrant)

​ ​ ​ ​ ​

​ ​ ​ By: /s/ David H. Rankin

​ ​ ​ ​ David H. Rankin Executive Vice President, Chief Financial Officer ​

​ ​ ​ ​ (principal financial officer)

​ ​ ​ ​ ​

3

2025
Q2

Q2 2025 Earnings

8-K

Jul 29, 2025

0000088121-25-000065

PRESS RELEASE

0000088121false00000881212025-07-292025-07-29

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ​

Date of Report (Date of earliest event reported)

July 29, 2025

​ Seaboard Corporation (Exact name of registrant as specified in its charter) ​

Delaware ​ 1-3390 ​ 04-2260388

(State or other jurisdiction of ​ (Commission ​ (I.R.S. Employer

incorporation)

File Number)

Identification No.)

​ ​

9000 West 67th Street, Merriam, Kansas 66202

(Address of principal executive offices)

(Zip Code)

​ ​

Registrant’s telephone number including area code

(913) 676-8928

​ Not Applicable (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: ​

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock $1.00 Par Value SEB NYSE American

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐ ​ ​

Item 2.02 Results of Operations and Financial Condition On July 29, 2025, Seaboard Corporation (the “Registrant”) issued a press release announcing earnings for the three and six months ended June 28, 2025, and the Board of Directors’ declaration of a quarterly cash dividend of $2.25 per share of common stock, payable on August 18, 2025, to stockholders of record at the close of business on August 8, 2025. The full text of this press release is included as Exhibit 99.1 to this Current Report on Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information furnished pursuant to Item 2.02, and the related press release included as Exhibit 99.1 to this Current Report, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. Item 9.01 Financial Statements and Exhibits Exhibits 99.1 Press release of Seaboard Corporation dated July 29, 2025 announcing earnings for the three and six months ended June 28, 2025 and a declaration of a dividend. 104 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. ​ ​

​ ​ ​ Date: July 29, 2025

​ ​ ​ ​ ​

​ ​ ​ Seaboard Corporation

​ ​ ​ ​ (Registrant)

​ ​ ​ ​ ​

​ ​ ​ By: /s/ David H. Rankin

​ ​ ​ ​ David H. Rankin Executive Vice President, Chief Financial Officer ​

​ ​ ​ ​ (principal financial officer)

​ ​ ​ ​ ​

3

2025
Q1

Q1 2025 Earnings

8-K

Apr 28, 2025

0000088121-25-000038

PRESS RELEASE

0000088121false00000881212025-04-282025-04-28

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ​

Date of Report (Date of earliest event reported)

April 28, 2025

​ Seaboard Corporation (Exact name of registrant as specified in its charter) ​

Delaware ​ 1-3390 ​ 04-2260388

(State or other jurisdiction of ​ (Commission ​ (I.R.S. Employer

incorporation)

File Number)

Identification No.)

​ ​

9000 West 67th Street, Merriam, Kansas 66202

(Address of principal executive offices)

(Zip Code)

​ ​

Registrant’s telephone number including area code

(913) 676-8928

​ Not Applicable (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: ​

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock $1.00 Par Value SEB NYSE American

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐ ​ ​

Item 2.02 Results of Operations and Financial Condition On April 28, 2025, Seaboard Corporation (the “Registrant”) issued a press release announcing earnings for the three months ended March 29, 2025, and the Board of Directors’ declaration of a quarterly cash dividend of $2.25 per share of common stock, payable on May 19, 2025, to stockholders of record at the close of business on May 8, 2025. The full text of this press release is included as Exhibit 99.1 to this Current Report on Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information furnished pursuant to Item 2.02, and the related press release included as Exhibit 99.1 to this Current Report, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. Item 9.01 Financial Statements and Exhibits Exhibits 99.1 Press release of Seaboard Corporation dated April 28, 2025 announcing earnings for the quarter ended March 29, 2025 and a declaration of a dividend. 104 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. ​ ​

​ ​ ​ Date: April 28, 2025

​ ​ ​ ​ ​

​ ​ ​ Seaboard Corporation

​ ​ ​ ​ (Registrant)

​ ​ ​ ​ ​

​ ​ ​ By: /s/ David H. Rankin

​ ​ ​ ​ David H. Rankin Executive Vice President, Chief Financial Officer ​

​ ​ ​ ​ (principal financial officer)

​ ​ ​ ​ ​

3

2024
Q4

Q4 2024 Earnings

8-K

Feb 13, 2025

0000088121-25-000015

PRESS RELEASE

0000088121false00000881212025-02-132025-02-13

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ​

Date of Report (Date of earliest event reported)

February 13, 2025

​ Seaboard Corporation (Exact name of registrant as specified in its charter) ​

Delaware ​ 1-3390 ​ 04-2260388

(State or other jurisdiction of ​ (Commission ​ (I.R.S. Employer

incorporation)

File Number)

Identification No.)

​ ​

9000 West 67th Street, Merriam, Kansas 66202

(Address of principal executive offices)

(Zip Code)

​ ​

Registrant’s telephone number including area code

(913) 676-8928

​ Not Applicable (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: ​

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock $1.00 Par Value SEB NYSE American

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐ ​ ​

Item 2.02 Results of Operations and Financial Condition On February 13, 2025, Seaboard Corporation (the “Registrant”) issued a press release announcing earnings for the quarter and year ended December 31, 2024, and the Board of Directors’ declaration of a quarterly cash dividend of $2.25 per share of common stock, payable on March 6, 2025, to stockholders of record at the close of business on February 24, 2025. The full text of this press release is included as Exhibit 99.1 to this Current Report on Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information furnished pursuant to Item 2.02, and the related press release included as Exhibit 99.1 to this Current Report, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. Item 9.01 Financial Statements and Exhibits Exhibits 99.1 Press release of Seaboard Corporation dated February 13, 2025 announcing earnings for the quarter and year ended December 31, 2024 and a declaration of a dividend. 104 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. ​ ​

​ ​ ​ Date: February 13, 2025

​ ​ ​ ​ ​

​ ​ ​ Seaboard Corporation

​ ​ ​ ​ (Registrant)

​ ​ ​ ​ ​

​ ​ ​ By: /s/ David H. Rankin

​ ​ ​ ​ David H. Rankin Executive Vice President, Chief Financial Officer ​

​ ​ ​ ​ (principal financial officer)

​ ​ ​ ​ ​

3

2024
Q3

Q3 2024 Earnings

8-K

Oct 29, 2024

0000088121-24-000085

PRESS RELEASE

0000088121false00000881212024-10-292024-10-29

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ​

Date of Report (Date of earliest event reported)

October 29, 2024

​ Seaboard Corporation (Exact name of registrant as specified in its charter) ​

Delaware ​ 1-3390 ​ 04-2260388

(State or other jurisdiction of ​ (Commission ​ (I.R.S. Employer

incorporation)

File Number)

Identification No.)

​ ​

9000 West 67th Street, Merriam, Kansas 66202

(Address of principal executive offices)

(Zip Code)

​ ​

Registrant’s telephone number including area code

(913) 676-8928

​ Not Applicable (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: ​

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock $1.00 Par Value SEB NYSE American

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐ ​ ​

Item 2.02 Results of Operations and Financial Condition On October 29, 2024, Seaboard Corporation (the “Registrant”) issued a press release announcing earnings for the three and nine months ended September 28, 2024, and the Board of Directors’ declaration of a quarterly cash dividend of $2.25 per share of common stock, payable on November 18, 2024, to stockholders of record at the close of business on November 8, 2024. The full text of this press release is included as Exhibit 99.1 to this Current Report on Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information furnished pursuant to Item 2.02, and the related press release included as Exhibit 99.1 to this Current Report, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. Item 9.01 Financial Statements and Exhibits Exhibits 99.1 Press release of Seaboard Corporation dated October 29, 2024 announcing earnings for the three and nine months ended September 28, 2024 and a declaration of a dividend. 104 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. ​ ​

​ ​ ​ Date: October 29, 2024

​ ​ ​ ​ ​

​ ​ ​ Seaboard Corporation

​ ​ ​ ​ (Registrant)

​ ​ ​ ​ ​

​ ​ ​ By: /s/ David H. Rankin

​ ​ ​ ​ David H. Rankin Executive Vice President, Chief Financial Officer ​

​ ​ ​ ​ (principal financial officer)

​ ​ ​ ​ ​

3

2024
Q2

Q2 2024 Earnings

8-K

Jul 30, 2024

0000088121-24-000072

PRESS RELEASE

0000088121false00000881212024-07-302024-07-30

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ​

Date of Report (Date of earliest event reported)

July 30, 2024

​ Seaboard Corporation (Exact name of registrant as specified in its charter) ​

Delaware ​ 1-3390 ​ 04-2260388

(State or other jurisdiction of ​ (Commission ​ (I.R.S. Employer

incorporation)

File Number)

Identification No.)

​ ​

9000 West 67th Street, Merriam, Kansas 66202

(Address of principal executive offices)

(Zip Code)

​ ​

Registrant’s telephone number including area code

(913) 676-8928

​ Not Applicable (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: ​

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock $1.00 Par Value SEB NYSE American

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐ ​ ​

Item 2.02 Results of Operations and Financial Condition On July 30, 2024, Seaboard Corporation (the “Registrant”) issued a press release announcing earnings for the three and six months ended June 29, 2024, and the Board of Directors’ declaration of a quarterly cash dividend of $2.25 per share of common stock, payable on August 19, 2024, to stockholders of record at the close of business on August 9, 2024. The full text of this press release is included as Exhibit 99.1 to this Current Report on Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information furnished pursuant to Item 2.02, and the related press release included as Exhibit 99.1 to this Current Report, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. Item 9.01 Financial Statements and Exhibits Exhibits 99.1 Press release of Seaboard Corporation dated July 30, 2024 announcing earnings for the three and six months ended June 29, 2024 and a declaration of a dividend. 104 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. ​ ​

​ ​ ​ Date: July 30, 2024

​ ​ ​ ​ ​

​ ​ ​ Seaboard Corporation

​ ​ ​ ​ (Registrant)

​ ​ ​ ​ ​

​ ​ ​ By: /s/ David H. Rankin

​ ​ ​ ​ David H. Rankin Executive Vice President, Chief Financial Officer ​

​ ​ ​ ​ (principal financial officer)

​ ​ ​ ​ ​

3

2024
Q1

Q1 2024 Earnings

8-K

Apr 30, 2024

0000088121-24-000058

PRESS RELEASE

0000088121false00000881212024-04-302024-04-30

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ​

Date of Report (Date of earliest event reported)

April 30, 2024

​ Seaboard Corporation (Exact name of registrant as specified in its charter) ​

Delaware ​ 1-3390 ​ 04-2260388

(State or other jurisdiction of ​ (Commission ​ (I.R.S. Employer

incorporation)

File Number)

Identification No.)

​ ​

9000 West 67th Street, Merriam, Kansas 66202

(Address of principal executive offices)

(Zip Code)

​ ​

Registrant’s telephone number including area code

(913) 676-8928

​ Not Applicable (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: ​

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock $1.00 Par Value SEB NYSE American

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐ ​ ​

Item 2.02 Results of Operations and Financial Condition On April 30, 2024, Seaboard Corporation (the “Registrant”) issued a press release announcing earnings for the three months ended March 30, 2024, and the Board of Directors’ declaration of a quarterly cash dividend of $2.25 per share of common stock, payable on May 20, 2024, to stockholders of record at the close of business on May 10, 2024. The full text of this press release is included as Exhibit 99.1 to this Current Report on Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information furnished pursuant to Item 2.02, and the related press release included as Exhibit 99.1 to this Current Report, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. Item 9.01 Financial Statements and Exhibits Exhibits 99.1 Press release of Seaboard Corporation dated April 30, 2024 announcing earnings for the quarter ended March 30, 2024 and a declaration of a dividend. 104 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. ​ ​

​ ​ ​ Date: April 30, 2024

​ ​ ​ ​ ​

​ ​ ​ Seaboard Corporation

​ ​ ​ ​ (Registrant)

​ ​ ​ ​ ​

​ ​ ​ By: /s/ David H. Rankin

​ ​ ​ ​ David H. Rankin Executive Vice President, Chief Financial Officer ​

​ ​ ​ ​ (principal financial officer)

​ ​ ​ ​ ​

3

2023
Q4

Q4 2023 Earnings

8-K

Feb 13, 2024

0000088121-24-000023

PRESS RELEASE

0000088121false00000881212024-02-132024-02-13

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ​

Date of Report (Date of earliest event reported)

February 13, 2024

​ Seaboard Corporation (Exact name of registrant as specified in its charter) ​

Delaware ​ 1-3390 ​ 04-2260388

(State or other jurisdiction of ​ (Commission ​ (I.R.S. Employer

incorporation)

File Number)

Identification No.)

​ ​

9000 West 67th Street, Merriam, Kansas 66202

(Address of principal executive offices)

(Zip Code)

​ ​

Registrant’s telephone number including area code

(913) 676-8928

​ Not Applicable (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: ​

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock $1.00 Par Value SEB NYSE American

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐ ​ ​

Item 2.02 Results of Operations and Financial Condition On February 13, 2024, Seaboard Corporation (the “Registrant”) issued a press release announcing earnings for the quarter and year  ended December 31, 2023, and the Board of Directors’ declaration of a quarterly cash dividend of $2.25 per share of common stock, payable on March 4, 2024, to stockholders of record at the close of business on February 23, 2024. The full text of this press release is included as Exhibit 99.1 to this Current Report on Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information furnished pursuant to Item 2.02, and the related press release included as Exhibit 99.1 to this Current Report, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. Item 9.01 Financial Statements and Exhibits Exhibits 99.1 Press release of Seaboard Corporation dated February 13, 2024 announcing earnings for the quarter and year ended December 31, 2023 and a declaration of a dividend. 104 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. ​ ​

​ ​ ​ Date: February 13, 2024

​ ​ ​ ​ ​

​ ​ ​ Seaboard Corporation

​ ​ ​ ​ (Registrant)

​ ​ ​ ​ ​

​ ​ ​ By: /s/ David H. Rankin

​ ​ ​ ​ David H. Rankin Executive Vice President, Chief Financial Officer ​

​ ​ ​ ​ (principal financial officer)

​ ​ ​ ​ ​

3

2023
Q3

Q3 2023 Earnings

8-K

Oct 30, 2023

0000088121-23-000086

PRESS RELEASE

0000088121false00000881212023-10-302023-10-30

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ​

Date of Report (Date of earliest event reported)

October 30, 2023

​ Seaboard Corporation (Exact name of registrant as specified in its charter) ​

Delaware ​ 1-3390 ​ 04-2260388

(State or other jurisdiction of ​ (Commission ​ (I.R.S. Employer

incorporation)

File Number)

Identification No.)

​ ​

9000 West 67th Street, Merriam, Kansas 66202

(Address of principal executive offices)

(Zip Code)

​ ​

Registrant’s telephone number including area code

(913) 676-8928

​ Not Applicable (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: ​

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock $1.00 Par Value SEB NYSE American

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐ ​ ​

Item 2.02 Results of Operations and Financial Condition On October 30, 2023, Seaboard Corporation (the “Registrant”) issued a press release announcing earnings for the three- and nine-months ended September 30, 2023, and the Board of Directors’ declaration of a quarterly cash dividend of $2.25 per share of common stock, payable on November 20, 2023, to stockholders of record at the close of business on November 9, 2023. The full text of this press release is included as Exhibit 99.1 to this Current Report on Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information furnished pursuant to Item 2.02, and the related press release included as Exhibit 99.1 to this Current Report, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. Item 9.01 Financial Statements and Exhibits Exhibits 99.1 Press release of Seaboard Corporation dated October 30, 2023 announcing earnings for the three and nine months ended September 30, 2023 and a declaration of a dividend. 104 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. ​ ​

​ ​ ​ Date: October 30, 2023

​ ​ ​ ​ ​

​ ​ ​ Seaboard Corporation

​ ​ ​ ​ (Registrant)

​ ​ ​ ​ ​

​ ​ ​ By: /s/ David H. Rankin

​ ​ ​ ​ David H. Rankin Executive Vice President, Chief Financial Officer ​

​ ​ ​ ​ (principal financial officer)

​ ​ ​ ​ ​

3

2023
Q2

Q2 2023 Earnings

8-K

Aug 1, 2023

0000088121-23-000070

PRESS RELEASE

0000088121false00000881212023-07-312023-07-31

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ​

Date of Report (Date of earliest event reported)

July 31, 2023

​ Seaboard Corporation (Exact name of registrant as specified in its charter) ​

Delaware ​ 1-3390 ​ 04-2260388

(State or other jurisdiction of ​ (Commission ​ (I.R.S. Employer

incorporation)

File Number)

Identification No.)

​ ​

9000 West 67th Street, Merriam, Kansas 66202

(Address of principal executive offices)

(Zip Code)

​ ​

Registrant’s telephone number including area code

(913) 676-8928

​ Not Applicable (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: ​

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock $1.00 Par Value SEB NYSE American

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐ ​ ​

Item 2.02 Results of Operations and Financial Condition On August 1, 2023, Seaboard Corporation (the “Registrant”) issued a press release announcing earnings for the three and six months ended July 1, 2023, and the Board of Directors’ declaration of a quarterly cash dividend of $2.25 per share of common stock, payable on August 21, 2023, to stockholders of record at the close of business on August 11, 2023. The full text of this press release is included as Exhibit 99.1 to this Current Report on Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information furnished pursuant to Item 2.02, and the related press release included as Exhibit 99.1 to this Current Report, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. Item 5.02  Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers On July 31, 2023, Seaboard Marine Ltd. (“Seaboard Marine”), a wholly owned subsidiary of the Registrant, entered into a certain First Amendment to Employment Agreement (the “Amendment”), amending the Employment Agreement of Edward A. Gonzalez, Seaboard Marine’s President and Chief Executive Officer, dated December 21, 2012 (as amended, the “Employment Agreement”). The Amendment (a) extends the term of Mr. Gonzalez’s employment from a term ending on December 31, 2024, with one-year renewal terms thereafter but not extending beyond December 31, 2027,to an initial term ending on December 31, 2025, provided that on each of December 31, 2023 and December 31, 2024, Mr. Gonzalez’s employment term will automatically renew for three-year terms unless a notice of non-renewal is given by Seaboard Marine and (b) extends the non-compete period from six months to one year following Mr. Gonzalez’s termination of employment. The Employment Agreement provides for payment of severance upon termination of employment in certain circumstances. Such extension of Mr. Gonzalez’s employment term will increase the potential severance payout obligation. All other terms of Mr. Gonzalez’s Employment Agreement remain unmodified. The foregoing description of the Amendment does not purport to be complete and is qualified in its entirety by the reference to the full text of the Amendment, a copy of which will be filed with the Securities and Exchange Commission as an exhibit to the Registrant’s Form 10-Q for the second quarter of 2023. Item 9.01 Financial Statements and Exhibits Exhibits 99.1 Press release of Seaboard Corporation dated August

2023
Q1

Q1 2023 Earnings

8-K

May 3, 2023

0000088121-23-000055

PRESS RELEASE

0000088121false00000881212023-05-032023-05-03

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ​

Date of Report (Date of earliest event reported)

May 3, 2023

​ Seaboard Corporation (Exact name of registrant as specified in its charter) ​

Delaware ​ 1-3390 ​ 04-2260388

(State or other jurisdiction of ​ (Commission ​ (I.R.S. Employer

incorporation)

File Number)

Identification No.)

​ ​

9000 West 67th Street, Merriam, Kansas 66202

(Address of principal executive offices)

(Zip Code)

​ ​

Registrant’s telephone number including area code

(913) 676-8928

​ Not Applicable (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: ​

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock $1.00 Par Value SEB NYSE American

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐ ​ ​

Item 2.02 Results of Operations and Financial Condition On May 3, 2023, the Registrant issued a press release announcing earnings for the quarter ended April 1, 2023, and the Board of Directors’ declaration of a quarterly cash dividend of $2.25 per share of common stock, payable on May 25, 2023, to stockholders of record at the close of business on May 15, 2023. The full text of this press release is included as Exhibit 99.1 to this Current Report on Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information furnished pursuant to Item 2.02, and the related press release included as Exhibit 99.1 to this Current Report, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. Item 9.01 Financial Statements and Exhibits Exhibits 99.1 Press release of Seaboard Corporation dated May 3, 2023 announcing earnings for the quarter ended April 1, 2023 and a declaration of a dividend. 104 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. ​ ​

​ ​ ​ Date: May 3, 2023

​ ​ ​ ​ ​

​ ​ ​ Seaboard Corporation

​ ​ ​ ​ (Registrant)

​ ​ ​ ​ ​

​ ​ ​ By: /s/ David H. Rankin

​ ​ ​ ​ David H. Rankin Executive Vice President, Chief Financial Officer ​

​ ​ ​ ​ (principal financial officer)

​ ​ ​ ​ ​

3

2022
Q4

Q4 2022 Earnings

8-K

Feb 14, 2023

0000088121-23-000018

PRESS RELEASE

0000088121false00000881212023-02-142023-02-14

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ​

Date of Report (Date of earliest event reported)

February 14, 2023

​ Seaboard Corporation (Exact name of registrant as specified in its charter) ​

Delaware ​ 1-3390 ​ 04-2260388

(State or other jurisdiction of ​ (Commission ​ (I.R.S. Employer

incorporation)

File Number)

Identification No.)

​ ​

9000 West 67th Street, Merriam, Kansas 66202

(Address of principal executive offices)

(Zip Code)

​ ​

Registrant’s telephone number including area code

(913) 676-8928

​ Not Applicable (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: ​

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock $1.00 Par Value SEB NYSE American

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐ ​ ​

Item 2.02 Results of Operations and Financial Condition On February 14, 2023, the Registrant issued a press release announcing earnings for the quarter and year ended December 31, 2022, and the Board of Directors’ declaration of a quarterly cash dividend of $2.25 per share of common stock, payable on March 6, 2023, to stockholders of record at the close of business on February 24, 2023. The full text of this press release is included as Exhibit 99.1 to this Current Report on Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information furnished pursuant to Item 2.02, and the related press release included as Exhibit 99.1 to this Current Report, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. Item 9.01 Financial Statements and Exhibits Exhibits 99.1 Press release of Seaboard Corporation dated February 14, 2023 announcing earnings for the quarter and year ended December 31, 2022 and a declaration of a dividend. 104 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. ​ ​

​ ​ ​ Date: February 14, 2023

​ ​ ​ ​ ​

​ ​ ​ Seaboard Corporation

​ ​ ​ ​ (Registrant)

​ ​ ​ ​ ​

​ ​ ​ By: /s/ David H. Rankin

​ ​ ​ ​ David H. Rankin Executive Vice President, Chief Financial Officer ​

​ ​ ​ ​ (principal financial officer)

​ ​ ​ ​ ​

3

2022
Q3

Q3 2022 Earnings

8-K

Nov 1, 2022

0000088121-22-000058

PRESS RELEASE

0000088121false00000881212022-11-012022-11-01

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ​

Date of Report (Date of earliest event reported)

November 1, 2022

​ Seaboard Corporation (Exact name of registrant as specified in its charter) ​

Delaware ​ 1-3390 ​ 04-2260388

(State or other jurisdiction of ​ (Commission ​ (I.R.S. Employer

incorporation)

File Number)

Identification No.)

​ ​

9000 West 67th Street, Merriam, Kansas 66202

(Address of principal executive offices)

(Zip Code)

​ ​

Registrant’s telephone number including area code

(913) 676-8928

​ Not Applicable (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: ​

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock $1.00 Par Value SEB NYSE American

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐ ​ ​

Item 2.02 Results of Operations and Financial Condition On November 1, 2022, the Registrant issued a press release announcing earnings for the quarter ended October 1, 2022, and the Board of Directors’ declaration of a quarterly cash dividend of $2.25 per share of common stock, payable on November 21, 2022, to stockholders of record at the close of business on November 11, 2022. The full text of this press release is included as Exhibit 99.1 to this Current Report on Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information furnished pursuant to Item 2.02, and the related press release included as Exhibit 99.1 to this Current Report, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. Item 9.01 Financial Statements and Exhibits Exhibits 99.1 Press release of Seaboard Corporation dated November 1, 2022 announcing earnings for the quarter ended October 1, 2022 and a declaration of a dividend. 104 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. ​ ​

​ ​ ​ Date: November 1, 2022

​ ​ ​ ​ ​

​ ​ ​ Seaboard Corporation

​ ​ ​ ​ (Registrant)

​ ​ ​ ​ ​

​ ​ ​ By: /s/ David H. Rankin

​ ​ ​ ​ David H. Rankin Executive Vice President, Chief Financial Officer ​

​ ​ ​ ​ (principal financial officer)

​ ​ ​ ​ ​

3

2022
Q2

Q2 2022 Earnings

8-K

Aug 2, 2022

0000088121-22-000047

PRESS RELEASE

0000088121false00000881212022-08-022022-08-02

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ​

Date of Report (Date of earliest event reported)

August 2, 2022

​ Seaboard Corporation (Exact name of registrant as specified in its charter) ​

Delaware ​ 1-3390 ​ 04-2260388

(State or other jurisdiction of ​ (Commission ​ (I.R.S. Employer

incorporation)

File Number)

Identification No.)

​ ​

9000 West 67th Street, Merriam, Kansas 66202

(Address of principal executive offices)

(Zip Code)

​ ​

Registrant’s telephone number including area code

(913) 676-8928

​ Not Applicable (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: ​

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock $1.00 Par Value SEB NYSE American

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐ ​ ​

Item 2.02 Results of Operations and Financial Condition On August 2, 2022, the Registrant issued a press release announcing earnings for the quarter ended July 2, 2022, and the Board of Directors’ declaration of a quarterly cash dividend of $2.25 per share of common stock, payable on August 22, 2022, to stockholders of record at the close of business on August 12, 2022. The full text of this press release is included as Exhibit 99.1 to this Current Report on Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information furnished pursuant to Item 2.02, and the related press release included as Exhibit 99.1 to this Current Report, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. Item 9.01 Financial Statements and Exhibits Exhibits 99.1 Press release of Seaboard Corporation dated August 2, 2022 announcing earnings for the quarter ended July 2, 2022 and a declaration of a dividend. 104 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. ​ ​

​ ​ ​ Date: August 2, 2022

​ ​ ​ ​ ​

​ ​ ​ Seaboard Corporation

​ ​ ​ ​ (Registrant)

​ ​ ​ ​ ​

​ ​ ​ By: /s/ David H. Rankin

​ ​ ​ ​ David H. Rankin Executive Vice President, Chief Financial Officer ​

​ ​ ​ ​ (principal financial officer)

​ ​ ​ ​ ​

3

2022
Q1

Q1 2022 Earnings

8-K

May 3, 2022

0000088121-22-000038

PRESS RELEASE

0000088121false00000881212022-05-032022-05-03

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ​

Date of Report (Date of earliest event reported)

May 3, 2022

​ Seaboard Corporation (Exact name of registrant as specified in its charter) ​

Delaware ​ 1-3390 ​ 04-2260388

(State or other jurisdiction of ​ (Commission ​ (I.R.S. Employer

incorporation)

File Number)

Identification No.)

​ ​

9000 West 67th Street, Merriam, Kansas 66202

(Address of principal executive offices)

(Zip Code)

​ ​

Registrant’s telephone number including area code

(913) 676-8928

​ Not Applicable (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: ​

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock $1.00 Par Value SEB NYSE American

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐ ​ ​

Item 2.02 Results of Operations and Financial Condition On May 3, 2022, the Registrant issued a press release announcing earnings for the quarter ended April 2, 2022, and the Board of Directors’ declaration of a quarterly cash dividend of $2.25 per share of common stock, payable on May 23, 2022, to stockholders of record at the close of business on May 13, 2022. The full text of this press release is included as Exhibit 99.1 to this Current Report on Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information furnished pursuant to Item 2.02, and the related press release included as Exhibit 99.1 to this Current Report, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. Item 9.01 Financial Statements and Exhibits Exhibits 99.1 Press release of Seaboard Corporation dated May 3, 2022 announcing earnings for the quarter ended April 2, 2022 and a declaration of a dividend. 104 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. ​ ​

​ ​ ​ Date: May 3, 2022

​ ​ ​ ​ ​

​ ​ ​ Seaboard Corporation

​ ​ ​ ​ (Registrant)

​ ​ ​ ​ ​

​ ​ ​ By: /s/ David H. Rankin

​ ​ ​ ​ David H. Rankin Executive Vice President, Chief Financial Officer ​

​ ​ ​ ​ (principal financial officer)

​ ​ ​ ​ ​

3

2021
Q4

Q4 2021 Earnings

8-K

Feb 15, 2022

0000088121-22-000015

PRESS RELEASE

0000088121false00000881212022-02-152022-02-15

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ​

Date of Report (Date of earliest event reported)

February 15, 2022

​ Seaboard Corporation (Exact name of registrant as specified in its charter) ​

Delaware ​ 1-3390 ​ 04-2260388

(State or other jurisdiction of ​ (Commission ​ (I.R.S. Employer

incorporation)

File Number)

Identification No.)

​ ​

9000 West 67th Street, Merriam, Kansas 66202

(Address of principal executive offices)

(Zip Code)

​ ​

Registrant’s telephone number including area code

(913) 676-8928

​ Not Applicable (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: ​

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock $1.00 Par Value SEB NYSE American

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐ ​ ​

Item 2.02 Results of Operations and Financial Condition On February 15, 2022, the Registrant issued a press release announcing earnings for the quarter and year ended December 31, 2021, and the Board of Directors’ declaration of a quarterly cash dividend of $2.25 per share of common stock, payable on March 7, 2022, to stockholders of record at the close of business on February 25, 2022. The full text of this press release is included as Exhibit 99.1 to this Current Report on Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information furnished pursuant to Item 2.02, and the related press release included as Exhibit 99.1 to this Current Report, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. Item 9.01 Financial Statements and Exhibits Exhibits 99.1 Press release of Seaboard Corporation dated February 15, 2022 announcing earnings for the quarter and year ended December 31, 2021 and a declaration of a dividend. 104 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. ​ ​

​ ​ ​ Date: February 15, 2022

​ ​ ​ ​ ​

​ ​ ​ Seaboard Corporation

​ ​ ​ ​ (Registrant)

​ ​ ​ ​ ​

​ ​ ​ By: /s/ David H. Rankin

​ ​ ​ ​ David H. Rankin Executive Vice President, Chief Financial Officer ​

​ ​ ​ ​ (principal financial officer)

​ ​ ​ ​ ​

3

2021
Q3

Q3 2021 Earnings

8-K

Nov 2, 2021

0000088121-21-000048

PRESS RELEASE

0000088121false00000881212021-11-022021-11-02

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 ​

Date of Report (Date of earliest event reported)

November 2, 2021

​ Seaboard Corporation (Exact name of registrant as specified in its charter) ​

Delaware ​ 1-3390 ​ 04-2260388

(State or other jurisdiction of ​ (Commission ​ (I.R.S. Employer

incorporation)

File Number)

Identification No.)

​ ​

9000 West 67th Street, Merriam, Kansas 66202

(Address of principal executive offices)

(Zip Code)

​ ​

Registrant’s telephone number including area code

(913) 676-8800

​ Not Applicable (Former name or former address, if changed since last report.) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act: ​

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common Stock $1.00 Par Value SEB NYSE American

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ​ ​

Item 2.02 Results of Operations and Financial Condition On November 2, 2021, the Registrant issued a press release announcing earnings for the quarter and nine months ended October 2, 2021 and the Board of Directors’ declaration of a quarterly cash dividend of $2.25 per share of common stock, payable on November 22, 2021, to stockholders of record at the close of business on November 12, 2021. The full text of this press release is included as Exhibit 99.1 to this Current Report on Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information furnished pursuant to Item 2.02, and the related press release included as Exhibit 99.1 to this Current Report, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. Item 9.01 Financial Statements and Exhibits Exhibits 99.1 Press release of Seaboard Corporation dated November 2, 2021 announcing earnings for the quarter and nine months ended October 2, 2021 and a declaration of a dividend. 104 Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document.

2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. ​ ​

​ ​ ​ Date: November 2, 2021

​ ​ ​ ​ ​

​ ​ ​ Seaboard Corporation

​ ​ ​ ​ (Registrant)

​ ​ ​ ​ ​

​ ​ ​ By: /s/ David H. Rankin

​ ​ ​ ​ David H. Rankin Executive Vice President, Chief Financial Officer ​

​ ​ ​ ​ (principal financial officer)

​ ​ ​ ​ ​

3

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