FolioLantern
BRK-BBerkshire Hathaway · Insider ownership research

Berkshire Hathaway insiders sold $20.0M in the past 12 months. How much of their stake is that?

Insiders sold $20.0M, 0% under disclosed plans. Their starting stakes can't be measured from the filings because most of the sellers' holdings were last confirmed years ago.

Updated Oct 8, 2026 from SEC filings · covers Oct 9, 2025 to Oct 8, 2026
3
buyers among officers and directors (25 trades), past 12 months
0%
of sales were under disclosed trading plans, past 12 months
1 of 6
officers and directors sold shares, past 12 months
Recent activity · past 30 days, Sep 9, 2026 to Oct 8, 2026
Sep 28, 2026Ajit Jain sold 40K shares ($20.0M) with no plan disclosed. That is 6.8% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Ajit Jain
Vice Chairman, Director
39,700$503.096.8%543KSep 28, 2026Sep 29, 2026

"% of total stake" is the shares in this event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings don't reconcile, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.

Is this normal? More than usual: about 2.4x the 5-year average. 1 insider sold; the average is 1 a year. Year by year
Latest filing: Filed Sep 29 for a sale on Sep 28. Ajit Jain sold 40K shares ($20.0M) with no plan disclosed. Filing
18 SEC ownership filings in the period · See the evidence

What stands out

Three officers bought shares: Gregory Abel (32K shares, $15.3M), Charles Chang (3K shares, $1.5M) and Michael O'Sullivan (1K shares, $501K). These are the first by current officers or directors since Sep 29, 2022.Gregory Abel: purchase, Mar 4, 2026 · Charles Chang: purchase, Aug 12, 2026 · Michael O'Sullivan: purchase, May 6, 2026
Ajit Jain sold $20.0M of stock with no disclosed trading plan. The filings don't state a reason.Largest such sale, Sep 28, 2026

Percentages cover 4 of 6 officers and directors. Left out: Ajit Jain (most holdings were last confirmed in 2021); Gregory Abel (holdings couldn't be fully reconciled). Disclosed company stock is not an insider's whole wealth.

Who sold, and how much of their stake

Officers and directors, past 12 months. Each bar is the insider's vested stake at the start of the period (Oct 8, 2025). The gold part is what they sold.

SoldRest of starting stakeAdded during the period
Ajit Jain
Vice Chairman, Director
No bar: most holdings were last confirmed in 2021.
$20.0MNo plan disclosed
Amounts, filings and trading plans for each seller

Selling by month

Officers and directors, Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.

Disclosed planTo cover taxesNo plan disclosed
OctNovDecJanFebMarAprMayJunJulAugSep 2026: $20.0M no plan disclosed$20.0MSepOct

Common questions

Is the Berkshire Hathaway CEO selling stock?

No. Gregory Abel reported no open-market sales in the past 12 months.

Why are Berkshire Hathaway insiders selling?

Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 0% of sales by value ran under 10b5-1 trading plans disclosed in the filings and 100% had no disclosed plan. A trading plan schedules sales in advance.

Are any Berkshire Hathaway insiders buying?

Yes. 3 officers or directors reported 25 purchases in the past 12 months (Form 4 code P, which includes private purchases).

The evidence

Who sold1 officer or director: amount, % of holdings, trading plan
Who soldAmount% of holdingsTrading plan
Ajit Jain
Vice Chairman, Director
$20.0M
40K shares
i
No percentage: most holdings were last confirmed in 2021.
No plan disclosed
The full ownership picture5 of 6 insiders fully reconciled · 6 officers and directors

Vested shares across all share classes, held directly and through trusts, LLCs and family members, as reported on SEC Forms 3, 4 and 5. Unvested awards and options are never counted as owned shares.

InsiderHeld Oct 8, 2025SoldHeld Oct 8, 2026Still held
Warren Buffett
i
Additional holdings last reported more than 3 years ago are shown separately and excluded from totals.
Director
297.18M0282.44Mno sales
Vesting, gifts, unvested awards and holding lines for Warren Buffett
0shares vested or exercised
−14.74Mgifted (net of own trusts)
none reportedunvested awards, start → end
  • Additional holdings last reported more than 3 years ago are shown separately and excluded from totals.
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass A Common Stock (shown as Class B equivalents, 1 = 1,500)297,175,500282,435,000
DirectClass B Common Stock1,1141,162

Additional holdings last reported Sep 6, 2005, not confirmed since: 85,983,381 shares. Not included in any total or percentage on this page.

Ajit Jain
!
Most of this insider's holdings were last confirmed in 2021. Confirmed in the last three years: 543,425 shares. Not confirmed since: 155,370,150 shares, left out of this row. "Still held" is not shown because it would cover only the smaller, confirmed part.
Vice Chairman, Director
583K−40K543Ksee note
Vesting, gifts, unvested awards and holding lines for Ajit Jain
0shares vested or exercised
−67gifted (net of own trusts)
none reportedunvested awards, start → end
  • Additional holdings last reported more than 3 years ago are shown separately and excluded from totals.
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass A Common Stock (shown as Class B equivalents, 1 = 1,500)91,50091,500
Ajit Jain GRAT TrustClass A Common Stock (shown as Class B equivalents, 1 = 1,500)226,500226,500
Jain Foundation Inc. (Non-Profit Corporation)Class A Common Stock (shown as Class B equivalents, 1 = 1,500)75,00075,000
Ajit Jain TrustsClass A Common Stock (shown as Class B equivalents, 1 = 1,500)57,00057,000
Indrima Jain TrustsClass A Common Stock (shown as Class B equivalents, 1 = 1,500)25,50025,500
DirectClass B Common Stock384317
Jain Foundation Inc. (Non-Profit Corporation)Class B Common Stock107,30867,608

Additional holdings last reported Dec 21, 2021, not confirmed since: 155,370,150 shares. Not included in any total or percentage on this page.

Gregory Abel
!
Holdings couldn't be fully reconciled. Balance changed without a matching transaction, and the footnote does not state the amount: +75,000 shares on Mar 4, 2026 (Gregory E. Abel Revocable Trust). See the filing Sales and other transactions for Gregory Abel are complete.
President and Chief Executive Officer, Director
n/a0n/an/a
Vesting, gifts, unvested awards and holding lines for Gregory Abel
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end

Holdings couldn't be fully reconciled. Balance changed without a matching transaction, and the footnote does not state the amount: +75,000 shares on Mar 4, 2026 (Gregory E. Abel Revocable Trust). The balances below are as reported, not verified totals.

Held throughShare classOct 8, 2025Oct 8, 2026
Gregory E. Abel Revocable TrustClass A Common Stock (shown as Class B equivalents, 1 = 1,500)267,000373,500
Gregory E. Abel Revocable TrustClass B Common Stock2,2892,289
spouse as custodian for minor childClass B Common Stock7474
Charlotte Guyman
i
Additional holdings last reported more than 3 years ago are shown separately and excluded from totals.
Director
85K084Kno sales
Vesting, gifts, unvested awards and holding lines for Charlotte Guyman
0shares vested or exercised
−984gifted (net of own trusts)
none reportedunvested awards, start → end
  • Additional holdings last reported more than 3 years ago are shown separately and excluded from totals.
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass A Common Stock (shown as Class B equivalents, 1 = 1,500)82,50081,000
DirectClass B Common Stock2,3722,888

Additional holdings last reported Sep 22, 2005, not confirmed since: 5,148 shares. Not included in any total or percentage on this page.

Charles Chang
i
Started reporting during the period; starting holdings are from the Form 3. An owner entity could not be identified from the footnotes.
Senior Vice President and Chief Financial Officer
9K012Kno sales
Vesting, gifts, unvested awards and holding lines for Charles Chang
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
  • Started reporting during the period; starting holdings are from the Form 3.
  • An owner entity could not be identified from the footnotes.
Held throughShare classOct 8, 2025Oct 8, 2026
LLCClass A Common Stock (shown as Class B equivalents, 1 = 1,500)9,00012,000
Michael O'Sullivan
i
Started reporting during the period; starting holdings are from the Form 3.
Senior Vice President, General Counsel and Secretary
12701.2Kno sales
Vesting, gifts, unvested awards and holding lines for Michael O'Sullivan
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
  • Started reporting during the period; starting holdings are from the Form 3.
Held throughShare classOct 8, 2025Oct 8, 2026
TrustClass B Common Stock1271,151

5 of 6 insiders fully reconciled: starting holdings plus reported transactions match ending holdings (5 exactly, 0 with a minor or footnoted difference). For 1 we show sales but not holdings; the ! icon on that row explains why. Percentages cover 4 of 6 officers and directors. Left out: Ajit Jain (most holdings were last confirmed in 2021); Gregory Abel (holdings couldn't be fully reconciled). "Still held" compares ending with starting vested shares; a plus sign means the holding grew.

What explains the selling$20.0M of sales by plan status, purpose, seller and month

Officer and director open-market sales: $20.0M across 39,700 shares. Plan status and stated purpose are separate questions, and a sale can have both.

By plan status

No plan disclosed · $20.0M

Sales with no 10b5-1 plan and no tax reference in the filing. $20.0M of it is Ajit Jain. No plan disclosed is a statement about the filing, not about why the sale happened. Largest such sale: Ajit Jain, Sep 28, 2026

Purchases · 3 buyers (25 trades)

3 officers and directors bought shares in this period, in 25 trades(Form 4 code P). Across all their filings on record there are 119 purchase trades.

Charitable gifts · 14.74M shares

Gifts the filings describe as charitable. Gifts are not sales and are not included in the sale totals.

SellerShares soldProceedsUnder a disclosed planShare of totalSales dates
Ajit Jain
Vice Chairman, Director
40K$20.0M0%100%Sep 28, 2026 to Sep 28, 2026

Sales by month

MonthSale proceedsDisclosed planTo cover taxesNo plan disclosed
Oct 2025$0$0$0$0
Nov 2025$0$0$0$0
Dec 2025$0$0$0$0
Jan 2026$0$0$0$0
Feb 2026$0$0$0$0
Mar 2026$0$0$0$0
Apr 2026$0$0$0$0
May 2026$0$0$0$0
Jun 2026$0$0$0$0
Jul 2026$0$0$0$0
Aug 2026$0$0$0$0
Sep 2026$20.0M$0$0$20.0M
Oct 2026$0$0$0$0
Is this normal? Selling year by year5 earlier years to compare with

More than usual: about 2.4x the 5-year average. 1 insider sold; the average is 1 a year.

12 months endingShares soldInsiders who soldProceeds
Oct 8, 2026
Latest 12 months
40K1$20.0M
Oct 8, 2025
1 year earlier
20K2$2.5M
Oct 8, 2024
2 years earlier
00$0
Oct 9, 2023
3 years earlier
39K1$13.4M
Oct 9, 2022
4 years earlier
14K1$4.1M
Oct 9, 2021
5 years earlier
8.4K2$2.3M

Open-market sales (Form 4 code S) by people who were officers or directors, in split-adjusted shares. Earlier years include people who have since left. A sale that an outside holder also reports (a family trust, a fund) is counted with outside holders in every year. Shares, not dollars, are compared, so a change in the stock price doesn't look like a change in selling. Years the filings don't fully cover are shown but left out of the average.

Known gaps and uncertainty1 insider whose holdings couldn't be fully reconciled

Gregory Abel: holdings couldn't be fully reconciled (difference of 75,000 shares). Balance changed without a matching transaction, and the footnote does not state the amount: +75,000 shares on Mar 4, 2026 (Gregory E. Abel Revocable Trust). Filing, Mar 4, 2026

Footnote: "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. | By Gregory E. Abel Revocable Trust - Shares held of record by Gregory E. Abel, trustee of the Gregory E. Abel Revocable Trust, for the benefit of his family."

Inferred rename: "Douglas Guyman, the spouse of the reporting person, as custodian for Catherine Guyman, the daughter of the reporting person" is treated as the same holder as "Douglas Guyman, the spouse of the reporting person, as custodian for William Guyman, the son of the reporting person", because the old name was never reported again and the new one opened with the same balance (24 shares). Old name, new name

Inferred rename: "Douglas Guyman, the spouse of the reporting person, as custodian for William Guyman, the son of the reporting person" is treated as the same holder as "Douglas Guyman, the spouse of the reporting person, as custodian for the children of the reporting person", because the old name was never reported again and the new one opened with the same balance (3,000 shares). Old name, new name

Inferred rename: "Self as Custodian for Beckett Abel" is treated as the same holder as "spouse as custodian for minor child", because the old name was never reported again and the new one opened with the same balance (74 shares). Old name, new name

External context: we only cite outside events when a documented connection exists. None is shown for this period.

Sources and methodology468 filings from SEC EDGAR, and how we read them

All 468 Forms 3, 4 and 5 filed for Berkshire Hathaway (SEC CIK 1067983) from Jun 29, 2000 to Sep 29, 2026, retrieved from SEC EDGAR on Oct 8, 2026. Prices are the ones reported in each filing, often weighted averages. 287 filings were left out because Berkshire Hathaway filed them as an owner of another company's stock. 5 older filings exist only on paper and could not be read.

Holdings. Each holding line (a share class plus an owner, such as a trust or LLC) carries its last reported balance forward. Entities first reported during the period start at zero, so transfers between an insider's own trusts don't count as selling. Lines not reported for three years or more are listed separately and left out of totals.

Sales. A sale counts as under a 10b5-1 plan if its footnote cites one or the filing's Rule 10b5-1 box is checked, and as tax-related if its footnote cites tax obligations or sell-to-cover. Shares withheld by the company for taxes are listed separately. Sales with neither attribute are labeled "no plan disclosed".

Full methodology

Former or inactive filers (17)No filing in 18 months; last reported balances, not in any total
NameLast filedLast reported balance
Meryl WitmerMar 4, 202525,000 shares, last reported balance as of Mar 3, 2025
Ronald OlsonOct 30, 2023207,680 shares, last reported balance as of May 18, 2023
Charles MungerOct 5, 20236,050,143 shares, last reported balance as of Oct 5, 2023
Thomas Murphy Jr.Dec 29, 2022144,000 shares, last reported balance as of Dec 19, 2022
Susan BuffettAug 30, 202236,450 shares, last reported balance as of Aug 26, 2022
David GottesmanMar 4, 20229,586,895 shares, last reported balance as of Mar 28, 2018
Christopher DavisOct 28, 20212,666 shares, last reported balance as of Oct 20, 2021
Kenneth ChenaultMay 12, 20206,751,855 shares, last reported balance as of May 2, 2020
Thomas MurphyFeb 13, 20151,526,470 shares, last reported balance as of Sep 22, 2014
Stephen BurkeMay 9, 201233,000 shares, last reported balance as of May 8, 2012
Donald KeoughAug 9, 2011174,000 shares, last reported balance as of Aug 8, 2011
BILL & MELINDA GATES FOUNDATION TRUSTMar 1, 201077,313,900 shares, last reported balance as of Feb 26, 2010
Susan DeckerMay 14, 2007125 shares, last reported balance as of May 5, 2007
Malcolm ChaceMar 26, 20077,570,560 shares, last reported balance as of Mar 23, 2007
William Gates IIIJan 5, 20066,525,000 shares, last reported balance as of Jan 3, 2006
Howard BuffettFeb 13, 200421,098 shares, last reported balance as of Dec 15, 2003
Susan BuffettFeb 13, 2004765,153,204 shares, last reported balance as of Dec 19, 2003