Robeco Institutional Asset Management B.V. has opened a new $33.8M position in $BRK.A, per a new SEC 13F filing. This disclosure reflects the funds’ holdings for the 03-31-2026 report period. You can see the fund’s full portfolio on Quiver Quantitative, and also track the largest institutional owners of $BRK.A.
$BRK.A Hedge Fund Activity
We have seen 162 institutional investors add shares of $BRK.A stock to their portfolio, and 213 decrease their positions in their most recent quarter.
Here are some of the largest recent moves:
- AUTO-OWNERS INSURANCE CO removed 126,051,433 shares (-100.0%) from their portfolio in Q1 2026, for an estimated $90,522,576,094,620
- NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO added 1,585,637 shares (+7207440.9%) to their portfolio in Q4 2025, for an estimated $1,196,838,807,600
- VESTOR CAPITAL, LLC added 123,930 shares (+2065500.0%) to their portfolio in Q4 2025, for an estimated $93,542,364,000
- REGIONS FINANCIAL CORP removed 89,561 shares (-100.0%) from their portfolio in Q4 2025, for an estimated $67,600,642,800
- M&T BANK CORP added 27,364 shares (+118973.9%) to their portfolio in Q4 2025, for an estimated $20,654,347,200
- REYNDERS MCVEIGH CAPITAL MANAGEMENT, LLC added 11,932 shares (+397733.3%) to their portfolio in Q4 2025, for an estimated $9,006,273,600
- LM ADVISORS LLC added 7,538 shares (+75380.0%) to their portfolio in Q4 2025, for an estimated $5,689,682,400
To track hedge funds’ stock portfolios, check out Quiver Quantitative’s institutional holdings dashboard.
$BRK.A Government Contracts
We have seen $40,559,589 of award payments to $BRK.A over the last year.
Here are some of the awards which we have have seen pay out the most over the last year:
- 1OZ SILVER BLANK (UPSET SILVER AMERICAN EAGLE PLANCHETS) MINT MAC PRECIOUS BLANKS: $8,200,000
- 8511378077!COAT,MAN’S: $5,338,656
- OPTICAL LOSS TEST K: $4,809,055
- THIS IS A FIRM FIXED PRICE DELIVERY ORDER UNDER CONTRACT W31P4Q20D0046, FOR OPTIMAL TIME DOMAIN REFLECTORS,…: $2,488,309
- ELECTRIC SERVICES: $1,323,000
To track government contracts to publicy traded companies, check out Quiver Quantitative’s government contracts dashboard.
Note that there may be inaccuracies in these estimates due to filing errors by the funds, parsing errors by us, or other anomalies.
Check out Quiver Quantitative’s $BRK.A ticker page for more data.