Berkshire Hathaway BRK-B Insider Ownership

NYSE BRK-B
$506.76 +0.93 (+0.18%)
As of: Sep 9, 2026 · 3:59 PM EDT

Insider Holdings by Owner

14.61K Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
—
share count not reported for this filer set
Shares Held by Insiders
121.94K
filed for Sep 2026
▲+0.40% QoQ
Shares Outstanding
—
not reported
Direct Holdings
11.96K
Indirect: 109.98K
Net Shares Traded (QoQ)
+488
net buying in Sep 2026
Insiders Holding Shares
7
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 —
Form 4 Holdings

Insiders Holding BRK-B

Insiders 7
Shares held 14.61K
Of outstanding —
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Ronald L Olson Director 5,630 1,515 7,145 48.9% 07 Jul, 2022
2 Charlotte Guyman Director 2,888 0 2,888 19.8% 18 May, 2026
3 Warren E Buffett Chairman And Ceo 1,953 0 1,953 13.4% 15 Jul, 2026
4 Michael J. O'Sullivan Officer 0 1,151 1,151 7.9% 13 Aug, 2026
5 Meryl B Witmer Director 1,000 2 1,002 6.9% 04 Mar, 2025
6 Ajit Jain Vice Chairman 317 0 317 2.2% 04 Sep, 2026
7 Gregory Abel Vice Chair 0 150 150 1.0% 03 Oct, 2022

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

3,659 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
03 Sep, 2026 Ajit Jain Vice Chairman Disposed G 10 — — 317 Direct
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 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 Charles C Chang Officer Acquired P 1 $765,189.94 $765.19K 7 Indirect
12 Aug, 2026 Charles C Chang Officer Acquired P 1 $765,189.94 $765.19K 7 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 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 Charles C Chang Officer Acquired P 1 $765,184.18 $765.18K 8 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