Source summary (excerpt): “Form 8-K current report filed on EDGAR.”
Sourcing: official primary source; see the linked release.
SEC EDGAR 8-K published an official release on Mon Nov 9, 5:10 AM CT: Berkshire Hathaway Inc files 8-K with the SEC (Items 2.02, 9.01).
Source summary (excerpt): “Form 8-K current report filed on EDGAR.”
Sourcing: official primary source; see the linked release.
Reported from SEC EDGAR 8-K. Site-only brief: it was not posted on X.