Jane Street
BRK.B icon

Jane Street’s Berkshire Hathaway Class B BRK.B Stock Holding History

Jane Street’s Portfolio BRK.B Stock Details BRK.B Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$535M Sell
1,116,800
-239,000
-18% -$117M 0.07% 185
2025
Q4 		$681M Sell
1,355,800
-113,100
-8% -$56.3M 0.1% 129
2025
Q3 		$738M Buy
1,468,900
+688,900
+88% +$334M 0.11% 116
2025
Q2 		$379M Buy
780,000
+116,500
+18% +$59.2M 0.07% 168
2025
Q1 		$353M Buy
663,500
+99,900
+18% +$48.6M 0.09% 141
2024
Q4 		$255M Buy
563,600
+91,500
+19% +$42.2M 0.06% 201
2024
Q3 		$217M Sell
472,100
-167,500
-26% -$74.1M 0.05% 206
2024
Q2 		$260M Buy
639,600
+302,000
+89% +$123M 0.06% 173
2024
Q1 		$142M Sell
337,600
-119,500
-26% -$47M 0.03% 290
2023
Q4 		$163M Sell
457,100
-181,300
-28% -$63.6M 0.04% 267
2023
Q3 		$224M Buy
638,400
+166,900
+35% +$59.2M 0.07% 139
2023
Q2 		$161M Buy
471,500
+124,100
+36% +$40.5M 0.05% 209
2023
Q1 		$107M Sell
347,400
-194,600
-36% -$60M 0.04% 286
2022
Q4 		$167M Sell
542,000
-103,800
-16% -$30.8M 0.08% 173
2022
Q3 		$172M Sell
645,800
-479,000
-43% -$136M 0.08% 157
2022
Q2 		$307M Buy
1,124,800
+289,500
+35% +$90.8M 0.13% 81
2022
Q1 		$295M Sell
835,300
-367,100
-31% -$119M 0.1% 115
2021
Q4 		$360M Buy
1,202,400
+596,200
+98% +$171M 0.12% 90
2021
Q3 		$165M Buy
606,200
+205,800
+51% +$57.8M 0.06% 218
2021
Q2 		$111M Sell
400,400
-5,000
-1% -$1.4M 0.04% 290
2021
Q1 		$104M Sell
405,400
-1,960,600
-83% -$476M 0.05% 258
2020
Q4 		$549M Buy
2,366,000
+1,071,900
+83% +$236M 0.28% 44
2020
Q3 		$276M Sell
1,294,100
-1,149,800
-47% -$235M 0.17% 81
2020
Q2 		$436M Buy
+2,443,900
New +$446M 0.33% 47

Other funds holding BRK.B

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Gates Foundation Trust
Gates Foundation Trust Kirkland, Washington $31.7B AUM 20.52% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Jane Street's BRK.B Position: Q1 2026 in Review

Jane Street reduced its Berkshire Hathaway Class B (BRK.B) stake by 12% in Q1 2026, selling an estimated $4.47M and leaving 65,867 shares worth $31.6M. The position accounts for ﹤0.01% of the portfolio, ranked #1397.

Jane Street first reported a position in BRK.B in Q2 2013 and has held it in 51 quarters since. The position peaked at $383M in Q2 2024. 4,854 funds tracked by Wall St. Rank hold BRK.B as of Q1 2026.

  • Jane Street held 65,867 shares of Berkshire Hathaway Class B worth $31.6M as of Q1 2026.
  • Jane Street sold 9,098 Berkshire Hathaway Class B shares in Q1 2026, an estimated $4.47M.
  • Berkshire Hathaway Class B made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #1397 holding.
  • Jane Street first reported a position in Berkshire Hathaway Class B in Q2 2013 and has held it in 51 quarters since.
  • Jane Street's Berkshire Hathaway Class B position peaked at $383M in Q2 2024.
  • 4,854 funds tracked by Wall St. Rank held Berkshire Hathaway Class B as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.