Berkshire Hathaway BRK-B Insider Ownership

NYSE BRK-B
$541.16 +1.34 (+0.25%)
At close: Oct 21, 2026 · 4:00 PM EDT

Insider Holdings by Owner

274.47K Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
0.019%
▼-0.0034% pp QoQ
Shares Held by Insiders
265.20K
filed for Sep 2026
▼-15.11% QoQ
Shares Outstanding
1.41Bn
1,408,536,262 shares
Direct Holdings
193.78K
Indirect: 71.42K
Net Shares Traded (QoQ)
-47.22K
net selling in Sep 2026
Insiders Holding Shares
10
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —

Insider Ownership Summary

Over the past year, Berkshire Hathaway insiders bought $500,617 of stock and sold $19.97 million on the open market.

Form 4 Holdings

Insiders Holding BRK-B

Insiders 10
Shares held 274.47K
Of outstanding 0.019%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Warren E Buffett Chairman And Ceo 190,243 0 190,243 69.3% 15 Jul, 2026
2 Ajit Jain Vice Chairman 61 67,608 67,669 24.7% 29 Sep, 2026
3 Ronald L Olson Director 5,630 1,515 7,145 2.6% 07 Jul, 2022
4 Charles T Munger Vice Chairman 4,033 0 4,033 1.5% 05 Oct, 2023
5 Charlotte Guyman Director 2,942 0 2,942 1.1% 18 May, 2026
6 Michael J. O'Sullivan Officer 0 1,151 1,151 0.4% 13 Aug, 2026
7 Meryl B Witmer Director 1,000 2 1,002 0.4% 04 Mar, 2025
8 Gregory E. Abel Vice Chair 0 249 249 0.1% 04 Mar, 2026
9 Susan A. Buffett Director 24 0 24 0.0% 30 Aug, 2022
10 Charles C Chang Officer 0 8 8 0.0% 13 Aug, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

2,385 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
28 Sep, 2026 Ajit Jain Vice Chairman Disposed S 39,700 $503.09 $19.97Mn 67,608 Indirect
03 Sep, 2026 Ajit Jain Vice Chairman Disposed G 10 — — 317 Direct
12 Aug, 2026 Michael J. O'Sullivan Officer Acquired P 45 $510.64 $22.98K 708 Indirect
12 Aug, 2026 Charles C Chang Officer Acquired P 1 $765,189.94 $765.19K 7 Indirect
12 Aug, 2026 Michael J. O'Sullivan Officer Acquired P 400 $512.52 $205.01K 1,108 Indirect
12 Aug, 2026 Charles C Chang Officer Acquired P 1 $765,184.18 $765.18K 8 Indirect
12 Aug, 2026 Michael J. O'Sullivan Officer Acquired P 43 $513.61 $22.09K 1,151 Indirect
14 Jul, 2026 Warren E Buffett Director, TenPercentOwner Acquired C 12,000,000 $0.00 $0 12,001,162 Direct
14 Jul, 2026 Warren E Buffett Director, TenPercentOwner Disposed G 9,000,000 $0.00 $0 3,001,162 Direct
14 Jul, 2026 Warren E Buffett Director, TenPercentOwner Disposed G 1,000,000 $0.00 $0 2,001,162 Direct
14 Jul, 2026 Warren E Buffett Director, TenPercentOwner Disposed G 1,000,000 $0.00 $0 1,001,162 Direct
14 Jul, 2026 Warren E Buffett Director, TenPercentOwner Disposed G 1,000,000 $0.00 $0 1,162 Direct
14 Jul, 2026 Warren E Buffett Director, TenPercentOwner Disposed C 8,000 — — 188,290 Direct
01 Jul, 2026 Ajit Jain Vice Chairman Disposed G 3 — — 327 Direct
22 May, 2026 Warren E Buffett Director, TenPercentOwner Disposed G 160 $0.00 $0 1,162 Direct
18 May, 2026 Warren E Buffett Director, TenPercentOwner Acquired C 37,500 $0.00 $0 38,614 Direct
18 May, 2026 Warren E Buffett Director, TenPercentOwner Disposed G 18,646 $0.00 $0 19,968 Direct
18 May, 2026 Warren E Buffett Director, TenPercentOwner Disposed G 18,646 $0.00 $0 1,322 Direct
18 May, 2026 Warren E Buffett Director, TenPercentOwner Disposed C 25 — — 196,290 Direct
14 May, 2026 Charlotte Guyman Director Disposed G 574 $0.00 $0 2,888 Direct