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MUNGER CHARLES T

Disclosed activity across 3 companies

Tapewire entity
11468
SEC CIK
0001078511

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
BERKSHIRE HATHAWAY INCBRK.A · Entity 2792Director · Vice ChairmanOctober 05, 2023October 05, 2023
COSTCO WHOLESALE CORP /NEWCOST · Entity 2803DirectorOctober 22, 2023October 24, 2023
DAILY JOURNAL CORPDJCO · Entity 5065DirectorJune 16, 2022June 17, 2022

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

BERKSHIRE HATHAWAY INC

Report date October 05, 2023 · Filed October 05, 2023

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Class A Common StockSEC Table II · derivative / convertible securityDirect4,033 Reported balance After 2023-10-05 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2023-10-05 · Gift · Disposed 77 · Balance 4,033

F1: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of Class A Common Stock are reportable in Table II.

F2: On October 5, 2023, I donated 77 shares of Class A Common Stock to the Henry E. Huntington Library and Art Gallery.

F3: Not applicable.

Class B Common StockSEC Table I · non-derivativeDirect643 Reported balance Holding disclosure · report date 2023-10-05 · row 1 Holding and transaction disclosures are not merged.
1 source row

Row 1 · Balance 643

Filing footnotes · ownership attribution and instrument terms

F1: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of Class A Common Stock are reportable in Table II.

F2: On October 5, 2023, I donated 77 shares of Class A Common Stock to the Henry E. Huntington Library and Art Gallery.

F3: Not applicable.

COSTCO WHOLESALE CORP /NEW

Report date October 22, 2023 · Filed October 24, 2023

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect168,104 Reported balance After 2023-10-22 transaction · row 1
1 source row

Row 1 · 2023-10-22 · Grant · Acquired 489 · Balance 168,104

F1: Grant of Restricted Stock Units. Vests one-third on October 22, 2024, and one-third annually on October 22 for the following two years.

F2: Not applicable. Grant of Restricted Stock Units.

Common StockSEC Table I · non-derivativeIndirectAlfred C. Munger Foundation19,565 Reported balance Holding disclosure · report date 2023-10-22 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 19,565

Filing footnotes · ownership attribution and instrument terms

F1: Grant of Restricted Stock Units. Vests one-third on October 22, 2024, and one-third annually on October 22 for the following two years.

F2: Not applicable. Grant of Restricted Stock Units.

DAILY JOURNAL CORP

Report date June 16, 2022 · Filed June 17, 2022

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect46,280 Reported balance After 2022-06-16 transaction · row 1
1 source row

Row 1 · 2022-06-16 · Other · Disposed 3,720 · Balance 46,280

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
November 04, 2010 Filed Nov 23, 2010 16:45 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 OtherClass B Common Stock 93 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-057372 · rrd291970.xml · nonDerivative · entry 4

MUNGER CHARLES T · CIK 0001078511 · Director · Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,308

F1 · kind: These shares were distributed to a beneficiary of a community property revocable trust in which the reporting person and his spouse were co-trustees, in connection with the death of the reporting person's spouse.

F2 · price: Not applicable.

Read SEC document
November 04, 2010 Filed Nov 23, 2010 16:45 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 OtherClass B Common Stock 93 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-057372 · rrd291970.xml · nonDerivative · entry 3

MUNGER CHARLES T · CIK 0001078511 · Director · Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,401

F1 · kind: These shares were distributed to a beneficiary of a community property revocable trust in which the reporting person and his spouse were co-trustees, in connection with the death of the reporting person's spouse.

F2 · price: Not applicable.

Read SEC document
November 04, 2010 Filed Nov 23, 2010 16:45 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 OtherClass B Common Stock 6 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-057372 · rrd291970.xml · nonDerivative · entry 2

MUNGER CHARLES T · CIK 0001078511 · Director · Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,494

F1 · kind: These shares were distributed to a beneficiary of a community property revocable trust in which the reporting person and his spouse were co-trustees, in connection with the death of the reporting person's spouse.

F2 · price: Not applicable.

Read SEC document
October 22, 2010 Filed Oct 26, 2010 21:25 UTC COSTCO WHOLESALE CORP /NEW COST · Entity 2803 GrantCommon Stock 3,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-10-051682 · doc4.xml · nonDerivative · entry 1

MUNGER CHARLES T · CIK 0001078511 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 212,268

F1 · shares: Vests one-third on October 22, 2011 and one-third annually on October 22 for the following two years.

F2 · price: Not applicable. Grant of Restricted Stock Units.

Read SEC document
October 19, 2010 Filed Nov 23, 2010 16:45 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 ConversionClass A Common Stock · Derivative 1 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-057372 · rrd291970.xml · derivative · entry 11

MUNGER CHARLES T · CIK 0001078511 · Director · Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,536

Underlying: See footnote 4 · Not disclosed shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II.

F2 · price: Not applicable.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F4 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II.

Read SEC document
October 19, 2010 Filed Nov 23, 2010 16:45 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 ConversionClass B Common Stock 1,500 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-057372 · rrd291970.xml · nonDerivative · entry 1

MUNGER CHARLES T · CIK 0001078511 · Director · Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,500

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: Not applicable.

F3 · balance_after: The community property revocable trust converted one share of Class A Common Stock into 1,500 shares of Class B Common Stock in connection with the distributions reported on this Form 4. With the exception of the shares of Class B Common Stock reamining after such distribution, all of my holdings in Berkshire Hathaway Inc. are in the form of Class A Common Stock.

Read SEC document
October 18, 2010 Filed Oct 21, 2010 17:16 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 OtherClass A Common Stock · Derivative 25 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-051656 · rrd289013.xml · derivative · entry 8

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,537

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In acordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F2 · kind: These shares of Class A Common Stock were distributed to a beneficiary of a community property revocable trust in which the reporting person and his spouse were co-trustees, in connection with the death of the reporting person's spouse.

F3 · price: Not applicable.

F3 · derivative.exercise_date: Not applicable.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In acordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
October 18, 2010 Filed Oct 21, 2010 17:16 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 OtherClass A Common Stock · Derivative 25 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-051656 · rrd289013.xml · derivative · entry 7

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,562

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In acordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F2 · kind: These shares of Class A Common Stock were distributed to a beneficiary of a community property revocable trust in which the reporting person and his spouse were co-trustees, in connection with the death of the reporting person's spouse.

F3 · price: Not applicable.

F3 · derivative.exercise_date: Not applicable.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In acordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
October 18, 2010 Filed Oct 21, 2010 17:16 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 OtherClass A Common Stock · Derivative 25 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-051656 · rrd289013.xml · derivative · entry 6

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,587

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In acordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F2 · kind: These shares of Class A Common Stock were distributed to a beneficiary of a community property revocable trust in which the reporting person and his spouse were co-trustees, in connection with the death of the reporting person's spouse.

F3 · price: Not applicable.

F3 · derivative.exercise_date: Not applicable.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In acordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
October 18, 2010 Filed Oct 21, 2010 17:16 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 OtherClass A Common Stock · Derivative 25 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-051656 · rrd289013.xml · derivative · entry 5

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,612

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In acordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F2 · kind: These shares of Class A Common Stock were distributed to a beneficiary of a community property revocable trust in which the reporting person and his spouse were co-trustees, in connection with the death of the reporting person's spouse.

F3 · price: Not applicable.

F3 · derivative.exercise_date: Not applicable.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In acordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
October 18, 2010 Filed Oct 21, 2010 17:16 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 OtherClass A Common Stock · Derivative 25 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-051656 · rrd289013.xml · derivative · entry 4

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,637

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In acordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F2 · kind: These shares of Class A Common Stock were distributed to a beneficiary of a community property revocable trust in which the reporting person and his spouse were co-trustees, in connection with the death of the reporting person's spouse.

F3 · price: Not applicable.

F3 · derivative.exercise_date: Not applicable.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In acordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
October 18, 2010 Filed Oct 21, 2010 17:16 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 OtherClass A Common Stock · Derivative 25 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-051656 · rrd289013.xml · derivative · entry 3

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,662

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In acordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F2 · kind: These shares of Class A Common Stock were distributed to a beneficiary of a community property revocable trust in which the reporting person and his spouse were co-trustees, in connection with the death of the reporting person's spouse.

F3 · price: Not applicable.

F3 · derivative.exercise_date: Not applicable.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In acordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
October 18, 2010 Filed Oct 21, 2010 17:16 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 OtherClass A Common Stock · Derivative 25 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-051656 · rrd289013.xml · derivative · entry 2

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,687

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In acordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F2 · kind: These shares of Class A Common Stock were distributed to a beneficiary of a community property revocable trust in which the reporting person and his spouse were co-trustees, in connection with the death of the reporting person's spouse.

F3 · price: Not applicable.

F3 · derivative.exercise_date: Not applicable.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In acordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
October 18, 2010 Filed Oct 21, 2010 17:16 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 OtherClass A Common Stock · Derivative 25 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-051656 · rrd289013.xml · derivative · entry 1

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,712

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In acordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F2 · kind: These shares of Class A Common Stock were distributed to a beneficiary of a community property revocable trust in which the reporting person and his spouse were co-trustees, in connection with the death of the reporting person's spouse.

F3 · price: Not applicable.

F3 · derivative.exercise_date: Not applicable.

F3 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In acordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
September 16, 2010 Filed Oct 4, 2010 20:41 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 OtherClass A Common Stock · Derivative 40 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-049562 · rrd286936.xml · derivative · entry 8

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,737

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F3 · kind: These shares of Class A Common Stock were distributed to a beneficiary of a community property revocable trust in which the reporting person and his spouse were co-trustees, in connection with the death of the reporting person's spouse.

F2 · price: Not applicable.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
September 16, 2010 Filed Oct 4, 2010 20:41 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 OtherClass A Common Stock · Derivative 40 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-049562 · rrd286936.xml · derivative · entry 7

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,777

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F3 · kind: These shares of Class A Common Stock were distributed to a beneficiary of a community property revocable trust in which the reporting person and his spouse were co-trustees, in connection with the death of the reporting person's spouse.

F2 · price: Not applicable.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
September 16, 2010 Filed Oct 4, 2010 20:41 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 OtherClass A Common Stock · Derivative 40 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-049562 · rrd286936.xml · derivative · entry 6

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,817

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F3 · kind: These shares of Class A Common Stock were distributed to a beneficiary of a community property revocable trust in which the reporting person and his spouse were co-trustees, in connection with the death of the reporting person's spouse.

F2 · price: Not applicable.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
September 16, 2010 Filed Oct 4, 2010 20:41 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 OtherClass A Common Stock · Derivative 40 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-049562 · rrd286936.xml · derivative · entry 5

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,857

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F3 · kind: These shares of Class A Common Stock were distributed to a beneficiary of a community property revocable trust in which the reporting person and his spouse were co-trustees, in connection with the death of the reporting person's spouse.

F2 · price: Not applicable.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
September 16, 2010 Filed Oct 4, 2010 20:41 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 OtherClass A Common Stock · Derivative 40 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-049562 · rrd286936.xml · derivative · entry 4

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,897

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F3 · kind: These shares of Class A Common Stock were distributed to a beneficiary of a community property revocable trust in which the reporting person and his spouse were co-trustees, in connection with the death of the reporting person's spouse.

F2 · price: Not applicable.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
September 16, 2010 Filed Oct 4, 2010 20:41 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 OtherClass A Common Stock · Derivative 40 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-049562 · rrd286936.xml · derivative · entry 3

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,937

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F3 · kind: These shares of Class A Common Stock were distributed to a beneficiary of a community property revocable trust in which the reporting person and his spouse were co-trustees, in connection with the death of the reporting person's spouse.

F2 · price: Not applicable.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
September 16, 2010 Filed Oct 4, 2010 20:41 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 OtherClass A Common Stock · Derivative 40 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-049562 · rrd286936.xml · derivative · entry 2

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,977

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F3 · kind: These shares of Class A Common Stock were distributed to a beneficiary of a community property revocable trust in which the reporting person and his spouse were co-trustees, in connection with the death of the reporting person's spouse.

F2 · price: Not applicable.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
September 16, 2010 Filed Oct 4, 2010 20:41 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 OtherClass A Common Stock · Derivative 40 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-049562 · rrd286936.xml · derivative · entry 1

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,017

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F3 · kind: These shares of Class A Common Stock were distributed to a beneficiary of a community property revocable trust in which the reporting person and his spouse were co-trustees, in connection with the death of the reporting person's spouse.

F2 · price: Not applicable.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 1,500 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F4 · balance_after: The initial Box 9 of the Reporting Person's Form 4 filed on 12/17/03 reported an aggregate of 16,801 shares of Class A Common Stock beneficially owned following the reported transaction. Due to an error in subtraction, the actual aggregate share number should have been 16,701 shares, a difference of 100 shares. The share discrepancy continued to be carried forward in the aggregate holdings through subsequent Form 4 and Form 5 filings. The aggregate holdings reported in Box 9 herein have been adjusted to correct the share discrepancy.

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March 19, 2010 Filed Mar 22, 2010 17:11 UTC COSTCO WHOLESALE CORP /NEW COST · Entity 2803 Exercise / conversionStock Option · Derivative 12,000 $52.50 Strike: $52.50 $630,000.00
Disclosure

SEC source: 0001209191-10-018112 · doc4.xml · derivative · entry 3

MUNGER CHARLES T · CIK 0001078511 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 12,000 shares

Expires 2010-04-03

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 19, 2010 Filed Mar 22, 2010 17:11 UTC COSTCO WHOLESALE CORP /NEW COST · Entity 2803 Exercise / conversionCommon Stock 12,000 $52.50 $630,000.00
Disclosure

SEC source: 0001209191-10-018112 · doc4.xml · nonDerivative · entry 1

MUNGER CHARLES T · CIK 0001078511 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 185,268

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 19, 2010 Filed Mar 22, 2010 17:39 UTC Amendment COSTCO WHOLESALE CORP /NEW COST · Entity 2803 Exercise / conversionStock Option · Derivative 12,000 $52.50 Strike: $52.50 $630,000.00
Disclosure

SEC source: 0001209191-10-018118 · doc4a.xml · derivative · entry 3

MUNGER CHARLES T · CIK 0001078511 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 12,000 shares

Expires 2010-04-03

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 19, 2010 Filed Mar 22, 2010 17:39 UTC Amendment COSTCO WHOLESALE CORP /NEW COST · Entity 2803 Exercise / conversionCommon Stock 12,000 $52.50 $630,000.00
Disclosure

SEC source: 0001209191-10-018118 · doc4a.xml · nonDerivative · entry 1

MUNGER CHARLES T · CIK 0001078511 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 209,268

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
December 18, 2009 Filed Jan 6, 2010 13:25 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 GiftClass A Common Stock · Derivative 8 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-001642 · rrd260627.xml · derivative · entry 9

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,157

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F11 · kind: On December 18, 2009, I donated 8 shares of Class A Common Stock to the Harvard-Westlake School.

F2 · price: Not applicable.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
December 18, 2009 Filed Jan 6, 2010 13:25 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 GiftClass A Common Stock · Derivative 2 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-001642 · rrd260627.xml · derivative · entry 8

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,165

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F10 · kind: On December 18, 2009, I donated 2 shares of Class A Common Stock to the Munger Charitable Trust Number Eight.

F2 · price: Not applicable.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
December 18, 2009 Filed Jan 6, 2010 13:25 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 GiftClass A Common Stock · Derivative 2 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-001642 · rrd260627.xml · derivative · entry 7

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,167

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F9 · kind: On December 18, 2009, I donated 2 shares of Class A Common Stock to the Munger Charitable Trust Number Seven.

F2 · price: Not applicable.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
December 18, 2009 Filed Jan 6, 2010 13:25 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 GiftClass A Common Stock · Derivative 2 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-001642 · rrd260627.xml · derivative · entry 6

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,169

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F8 · kind: On December 18, 2009, I donated 2 shares of Class A Common Stock to the Munger Charitable Trust Number Six.

F2 · price: Not applicable.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
December 18, 2009 Filed Jan 6, 2010 13:25 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 GiftClass A Common Stock · Derivative 2 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-001642 · rrd260627.xml · derivative · entry 5

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,171

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F7 · kind: On December 18, 2009, I donated 2 shares of Class A Common Stock to the Munger Charitable Trust Number Five.

F2 · price: Not applicable.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
December 18, 2009 Filed Jan 6, 2010 13:25 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 GiftClass A Common Stock · Derivative 2 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-001642 · rrd260627.xml · derivative · entry 4

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,173

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F6 · kind: On December 18, 2009, I donated 2 shares of Class A Common Stock to the Munger Charitable Trust Number Four.

F2 · price: Not applicable.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
December 18, 2009 Filed Jan 6, 2010 13:25 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 GiftClass A Common Stock · Derivative 2 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-001642 · rrd260627.xml · derivative · entry 3

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,175

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F5 · kind: On December 18, 2009, I donated 2 shares of Class A Common Stock to the Munger Charitable Trust Number Three.

F2 · price: Not applicable.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
December 18, 2009 Filed Jan 6, 2010 13:25 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 GiftClass A Common Stock · Derivative 2 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-001642 · rrd260627.xml · derivative · entry 2

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,177

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F4 · kind: On December 18, 2009, I donated 2 shares of Class A Common Stock to the Munger Charitable Trust Number Two.

F2 · price: Not applicable.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
December 18, 2009 Filed Jan 6, 2010 13:25 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 GiftClass A Common Stock · Derivative 2 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-10-001642 · rrd260627.xml · derivative · entry 1

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,179

Underlying: See footnote 1. · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F3 · kind: On December 18, 2009, I donated 2 shares of Class A Common Stock to the Munger Charitable Trust Number One.

F2 · price: Not applicable.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
October 22, 2009 Filed Oct 23, 2009 22:45 UTC COSTCO WHOLESALE CORP /NEW COST · Entity 2803 GrantCommon Stock 3,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-09-049685 · doc4.xml · nonDerivative · entry 1

MUNGER CHARLES T · CIK 0001078511 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 197,268

F1 · shares: Vests one-third on October 22, 2010 and one-third annually on October 22 for the following two years.

F2 · price: Not applicable. Grant of Restricted Stock Units.

Read SEC document
November 20, 2008 Filed Nov 21, 2008 17:53 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 SaleClass A Common Stock · Derivative 2,000 $77,500.00 $155,000,000.00
Disclosure

SEC source: 0001181431-08-063602 · rrd224408.xml · derivative · entry 1

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,181

Underlying: See footnote 1 · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F3 · price: This Form 4 is being filed to report a private sale of shares of Class A Common Stock to family members, in exchange for a promissory note.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
October 22, 2008 Filed Oct 23, 2008 22:00 UTC COSTCO WHOLESALE CORP /NEW COST · Entity 2803 GrantCommon Stock 3,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-08-057373 · doc4.xml · nonDerivative · entry 1

MUNGER CHARLES T · CIK 0001078511 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 194,268

F1 · shares: Vests one-third on October 22, 2009 and one-third annually on October 22 for the following two years.

F2 · price: Not applicable. Grant of Restricted Stock Units.

Read SEC document
March 18, 2008 Filed Mar 18, 2008 22:45 UTC COSTCO WHOLESALE CORP /NEW COST · Entity 2803 Exercise / conversionStock Option · Derivative 16,000 $27.13 Strike: $27.13 $434,000.00
Disclosure

SEC source: 0001209191-08-018995 · doc4.xml · derivative · entry 3

MUNGER CHARLES T · CIK 0001078511 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 16,000 shares

Expires 2008-04-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 18, 2008 Filed Mar 18, 2008 22:45 UTC COSTCO WHOLESALE CORP /NEW COST · Entity 2803 Exercise / conversionCommon Stock 16,000 $27.13 $434,000.00
Disclosure

SEC source: 0001209191-08-018995 · doc4.xml · nonDerivative · entry 1

MUNGER CHARLES T · CIK 0001078511 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 191,268

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
November 16, 2007 Filed Nov 16, 2007 15:28 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 SaleClass A Common Stock · Derivative 60 $135,510.00 $8,130,600.00
Disclosure

SEC source: 0001181431-07-070037 · rrd178874.xml · derivative · entry 6

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,181

Underlying: See Footnote 1 · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
November 16, 2007 Filed Nov 16, 2007 15:28 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 SaleClass A Common Stock · Derivative 30 $135,560.00 $4,066,800.00
Disclosure

SEC source: 0001181431-07-070037 · rrd178874.xml · derivative · entry 5

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,241

Underlying: See Footnote 1 · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
November 16, 2007 Filed Nov 16, 2007 15:28 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 SaleClass A Common Stock · Derivative 10 $135,800.00 $1,358,000.00
Disclosure

SEC source: 0001181431-07-070037 · rrd178874.xml · derivative · entry 4

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,271

Underlying: See Footnote 1 · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
November 16, 2007 Filed Nov 16, 2007 15:28 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 SaleClass A Common Stock · Derivative 40 $136,000.00 $5,440,000.00
Disclosure

SEC source: 0001181431-07-070037 · rrd178874.xml · derivative · entry 3

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,281

Underlying: See Footnote 1 · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

Read SEC document
November 16, 2007 Filed Nov 16, 2007 15:28 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 SaleClass A Common Stock · Derivative 10 $136,100.00 $1,361,000.00
Disclosure

SEC source: 0001181431-07-070037 · rrd178874.xml · derivative · entry 2

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,321

Underlying: See Footnote 1 · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

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November 15, 2007 Filed Nov 16, 2007 15:28 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 SaleClass A Common Stock · Derivative 50 $138,000.00 $6,900,000.00
Disclosure

SEC source: 0001181431-07-070037 · rrd178874.xml · derivative · entry 1

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,331

Underlying: See Footnote 1 · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

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October 17, 2007 Filed Oct 18, 2007 21:17 UTC COSTCO WHOLESALE CORP /NEW COST · Entity 2803 GrantCommon Stock 3,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-07-058927 · doc4.xml · nonDerivative · entry 1

MUNGER CHARLES T · CIK 0001078511 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 175,268

F1 · shares: Vests one-third on October 17, 2008 and one-third annually on October 17 for the following two years.

F2 · price: Not applicable. Grant of Restricted Stock Units.

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September 13, 2007 Filed Sep 14, 2007 14:18 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 GiftClass A Common Stock · Derivative 90 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-07-057453 · rrd172542.xml · derivative · entry 2

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,381

Underlying: See Footnote 1 · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F4 · kind: On September 13, 2007, I donated 90 shares of Class A Common Stock to the Polytechnic School in Pasadena, California.

F2 · price: Not applicable.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

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September 13, 2007 Filed Sep 14, 2007 14:18 UTC BERKSHIRE HATHAWAY INC BRK.A · Entity 2792 GiftClass A Common Stock · Derivative 90 Not disclosed Not disclosed
Disclosure

SEC source: 0001181431-07-057453 · rrd172542.xml · derivative · entry 1

MUNGER CHARLES T · CIK 0001078511 · Director · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,471

Underlying: See Footnote 1 · Not disclosed shares

Expires not disclosed

F1 · derivative.exercise_price: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

F3 · kind: On September 13, 2007, I donated 90 shares of Class A Common Stock to the Marlborough School in Los Angeles, California.

F2 · price: Not applicable.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

F1 · derivative.underlying_shares: Each share of Class A Common Stock is convertible at any time at the option of the holder into 30 shares of Class B Common Stock. In accordance with the instructions to Form 4, my holdings of, and transactions in, shares of Class A Common Stock are reported in Table II. I own only Class A Common Stock; I own no Class B Common Stock directly.

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March 14, 2007 Filed Mar 15, 2007 17:08 UTC COSTCO WHOLESALE CORP /NEW COST · Entity 2803 Exercise / conversionStock Option · Derivative 16,000 $14.06 Strike: $14.06 $225,000.00
Disclosure

SEC source: 0001209191-07-017888 · doc4.xml · derivative · entry 3

MUNGER CHARLES T · CIK 0001078511 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 16,000 shares

Expires 2007-04-01

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.