Home

CHARLES T MUNGER

CIK 1078511 · Vice Chairman · last filed 2023-10-24

CHARLES T MUNGER is a Vice Chairman who has filed 68 SEC Form 4 insider transactions across 3 companies since 2007. The most recent filing, for COST, was dated Oct 24, 2023. Current disclosed insider exposure totals $206.0M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

Loading insider history…
Disclosed Exposure

$205.99M

Companies

3

Total Filings

68

Lifetime Open-Market Net

$0

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
COST Director 187,669 $951.67 $178.60M $0 32 2023-10-24
BRK.B Vice Chairman 643 $507.78 $326.5K $0 34 2023-10-05
DJCO Chairman 46,280 $584.83 $27.07M $0 2 2022-06-17

Recent Filings

68 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2023-10-24 COST Grant (A) +489 $0 EDGAR
2023-10-05 BRK.B Gift (G) — $0 EDGAR
2023-08-15 BRK.B Gift (G) — $0 EDGAR
2022-10-25 COST Grant (A) +565 $0 EDGAR
2022-06-17 DJCO Other (J) −3,720 $0 EDGAR
2022-06-16 BRK.B Gift (G) — $0 EDGAR
2022-01-07 BRK.B Gift (G) — $0 EDGAR
2021-10-26 COST Grant (A) +561 $0 EDGAR
2021-09-20 BRK.B Gift (G) — $0 EDGAR
2021-05-03 BRK.B Gift (G) — $0 EDGAR
Showing 1–10 of 68
Page 1 of 7
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.