UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-14905 BERKSHIRE HATHAWAY INC. (Exact name of registrant as specified in its charter) Delaware 47-0813844 (State or other jur ...

| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | |-------|----------------|-------|-------|----------------|-------|-----------|-------|-------|------------------------|---------------|------------------|-------|---------|--------------------------|------------|--------------------| | | | | | | | | $ | | Second 2023 \n33,061 | Quarter \n $ | 2022 \n(66,854 | ) $ | 2023 \n | First Six \n67,819 | Months \n$ | 2022 \n(68,589 ) | | | (losses) | | | | | | | ...

| --- | --- | --- | --- | --- | |---------------------------------------------------------|-------|--------------------------------|-------|---------------------| | | | March 31, 2023 \n(Unaudited) | | December 31, 2022 | | ASSETS | | | | | | Insurance and Other: | | | | | | Cash and cash equivalents* | $ | 23,805 | $ | 32,260 | | Short-term investments in U.S. Treasury Bills | | 103,869 | | 92,774 | | Investments in fixed maturity securities | | 22,566 | | 25,128 | | Investments in equity securities | | 32 ...

BRK.A BRK.B BRK23 BRK24 BRK25 BRK27 BRK28 BRK30 BRK34 BRK35 BRK39 BRK41 BRK59 Portions of the Proxy Statement for the Registrant's Annual Meeting to be held May 6, 2023 are incorporated in Part III. Page No. | --- | --- | --- | |------------|-------------------------------|-------| | | | | | Item 1. | Business Description | K-1 | | Item 1A. | Risk Factors | K-25 | | Item 1B. | Unresolved Staff Comments | K-28 | | Item 2. | Description of Properties | K-28 | | Item 3. | Legal Proceedings | K-30 | | Item 4. | ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-14905 BERKSHIRE HATHAWAY INC. (Exact name of registrant as specified in its charter) Delaware 47-0813844 (State or other jur ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-14905 BERKSHIRE HATHAWAY INC. (Exact name of registrant as specified in its charter) Delaware 47-0813844 (State or other jurisdic ...

FORM 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-14905 BERKSHIRE HATHAWAY INC. (Exact name of registrant as specified in its charter) Delaware 47-0813844 (State or other jurisdi ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-14905 BERKSHIRE HATHAWAY INC. (Exact name of Registrant as specified in its charter) Delaware 47-0813844 State or other jurisdiction of incorpor ...

FORM 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-14905 BERKSHIRE HATHAWAY INC. (Exact name of registrant as specified in its charter) Delaware 47-0813844 (State or other jur ...

FORM 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-14905 BERKSHIRE HATHAWAY INC. (Exact name of registrant as specified in its charter) Delaware 47-0813844 (State or other jurisdic ...