FMR LLC
· Added
+$2.7B
Change
+5.5M
Δ Own
+58.1%
Date
Q1 2026
BR
13F filing season in progress; institutional ownership uses the last closed quarter (2026 Q1)
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
FMR LLC
· Added
+$2.7B
Change
+5.5M
Δ Own
+58.1%
Date
Q1 2026
|
FMR LLC | Added· Q1 2026 | +$2.7B | +5.5M | +58.1% | Q1 2026 | |||||
|
JPMorgan Chase & Co
· Added
+$1.7B
Change
+3.5M
Date
Q1 2026
|
JPMorgan Chase & Co | Added· Q1 2026 | +$1.7B | +3.5M | – | Q1 2026 | |||||
|
H&h International Investment, LLC
· Added
+$968M
Change
+2.0M
Date
Q1 2026
|
H&h International Investment, LLC | Added· Q1 2026 | +$968M | +2.0M | – | Q1 2026 | |||||
|
Ameriprise Financial Inc
· Added
+$684M
Change
+1.4M
Date
Q1 2026
|
Ameriprise Financial Inc | Added· Q1 2026 | +$684M | +1.4M | – | Q1 2026 | |||||
|
Two Sigma Investments, LP
· Added
+$584M
Change
+1.2M
Δ Own
+275.2%
Date
Q1 2026
|
Two Sigma Investments, LP | Added· Q1 2026 | +$584M | +1.2M | +275.2% | Q1 2026 | |||||
|
Vanguard
· Added
+$580M
Change
+1.2M
Date
Q1 2026
|
Vanguard | Added· Q1 2026 | +$580M | +1.2M | – | Q1 2026 | |||||
|
Geode
· Added
+$558M
Change
+1.1M
Date
Q1 2026
|
Geode | Added· Q1 2026 | +$558M | +1.1M | – | Q1 2026 | |||||
|
UBS AM
· Added
+$440M
Change
+897K
Date
Q1 2026
|
UBS AM | Added· Q1 2026 | +$440M | +897K | – | Q1 2026 | |||||
|
Alliancebernstein L.P.
· Added
+$439M
Change
+895K
Date
Q1 2026
|
Alliancebernstein L.P. | Added· Q1 2026 | +$439M | +895K | – | Q1 2026 | |||||
|
Amundi
· Added
+$416M
Change
+847K
Date
Q1 2026
|
Amundi | Added· Q1 2026 | +$416M | +847K | – | Q1 2026 | |||||
|
Bessemer Group Inc
· Added
+$324M
Change
+660K
Date
Q1 2026
|
Bessemer Group Inc | Added· Q1 2026 | +$324M | +660K | – | Q1 2026 | |||||
|
Morgan Stanley
· Added
+$282M
Change
+574K
Date
Q1 2026
|
Morgan Stanley | Added· Q1 2026 | +$282M | +574K | – | Q1 2026 | |||||
|
Assenagon Asset Management S.A.
· Added
+$259M
Change
+527K
Date
Q1 2026
|
Assenagon Asset Management S.A. | Added· Q1 2026 | +$259M | +527K | – | Q1 2026 | |||||
|
Citigroup Inc
· Added
+$250M
Change
+509K
Date
Q1 2026
|
Citigroup Inc | Added· Q1 2026 | +$250M | +509K | – | Q1 2026 | |||||
|
Deutsche Bank AG
· Added
+$234M
Change
+477K
Date
Q1 2026
|
Deutsche Bank AG | Added· Q1 2026 | +$234M | +477K | – | Q1 2026 | |||||
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Institutions hold 42.2% of BRK-B shares in the Q1 2026 snapshot. The largest disclosed owners include Morgan Stanley, Gates Foundation Trust, JPMorgan Chase & Co. The ownership chart shows each group's share of total shares outstanding from the latest disclosed filings. Retail and other includes everyone who does not file, not a tracked group.
For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.
An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.
Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.
Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.
A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.