Jane Street
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Jane Street’s W.R. Berkley WRB Stock Holding History

Jane Street’s Portfolio WRB Stock Details WRB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$4.26M Sell
60,400
-19,600
-25% -$1.31M ﹤0.01% 3940
2026
Q1 		$5.3M Buy
80,000
+56,500
+240% +$3.89M ﹤0.01% 3423
2025
Q4 		$1.65M Sell
23,500
-69,600
-75% -$5.13M ﹤0.01% 5185
2025
Q3 		$7.13M Buy
93,100
+85,900
+1,193% +$6.12M ﹤0.01% 2890
2025
Q2 		$529K Hold
7,200
– – ﹤0.01% 6810
2025
Q1 		$512K Buy
7,200
+600
+9% +$36.8K ﹤0.01% 6815
2024
Q4 		$386K Sell
6,600
-45,350
-87% -$2.72M ﹤0.01% 7293
2024
Q3 		$2.95M Sell
51,950
-70,450
-58% -$3.96M ﹤0.01% 3747
2024
Q2 		$6.41M Buy
122,400
+112,200
+1,100% +$6.01M ﹤0.01% 2618
2024
Q1 		$601K Sell
10,200
-172,200
-94% -$9.31M ﹤0.01% 6330
2023
Q4 		$8.6M Buy
182,400
+160,050
+716% +$7.3M ﹤0.01% 2132
2023
Q3 		$946K Buy
22,350
+10,200
+84% +$423K ﹤0.01% 5261
2023
Q2 		$482K Buy
+12,150
New +$478K ﹤0.01% 6371
2023
Q1 		– Sell
-46,200
Closed -$2.24M – 10041
2022
Q4 		$2.24M Buy
46,200
+31,350
+211% +$1.51M ﹤0.01% 3693
2022
Q3 		$639K Buy
14,850
+3,600
+32% +$156K ﹤0.01% 6228
2022
Q2 		$512K Sell
11,250
-12,300
-52% -$559K ﹤0.01% 6697
2022
Q1 		$1.04M Sell
23,550
-3,675
-13% -$147K ﹤0.01% 6040
2021
Q4 		$997K Buy
+27,225
New +$965K ﹤0.01% 5906

Other funds holding WRB

MSI
Mitsui Sumitomo Insurance Tokyo, Japan $4.15B AUM
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Kayne Anderson Rudnick Investment Management
Kayne Anderson Rudnick Investment Management Los Angeles, California $32.2B AUM 10.98% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Jane Street's WRB Position: Q2 2026 in Review

Jane Street reduced its W.R. Berkley (WRB) stake by 14% in Q2 2026, selling an estimated $9.28M and leaving 875,704 shares worth $61.8M. The position accounts for 0.01% of the portfolio, ranked #1251.

Jane Street first reported a position in WRB in Q2 2013 and has held it in 34 quarters since. The position peaked at $67.2M in Q1 2026. 952 funds tracked by Wall St. Rank hold WRB as of Q2 2026.

  • Jane Street held 875,704 shares of W.R. Berkley worth $61.8M as of Q2 2026.
  • Jane Street sold 138,431 W.R. Berkley shares in Q2 2026, an estimated $9.28M.
  • W.R. Berkley made up 0.01% of Jane Street's portfolio in Q2 2026, its #1251 holding.
  • Jane Street first reported a position in W.R. Berkley in Q2 2013 and has held it in 34 quarters since.
  • Jane Street's W.R. Berkley position peaked at $67.2M in Q1 2026.
  • 952 funds tracked by Wall St. Rank held W.R. Berkley as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.