0000088121 2026-05-05 2026-05-05 0000088121 false 8-K 2026-05-05 Seaboard Corporation DE 1-3390 04-2260388 9000 West 67th Street Merriam KS 66202 913 676-8928 false false false false Common Stock $1.00 Par Value SEB NYSEAMER false