Jane Street
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Jane Street’s Caribou Biosciences CRBU Stock Holding History

Jane Street’s Portfolio CRBU Stock Details CRBU Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$47.5K Sell
24,975
-270,710
-92% -$465K ﹤0.01% 10989
2025
Q4 		$470K Sell
295,685
-183,753
-38% -$386K ﹤0.01% 7839
2025
Q3 		$1.12M Sell
479,438
-4,172
-0.9% -$7.88K ﹤0.01% 6086
2025
Q2 		$609K Buy
483,610
+189,923
+65% +$187K ﹤0.01% 6558
2025
Q1 		$268K Sell
293,687
-47,153
-14% -$61.3K ﹤0.01% 7987
2024
Q4 		$542K Sell
340,840
-309,120
-48% -$622K ﹤0.01% 6618
2024
Q3 		$1.27M Sell
649,960
-18,540
-3% -$38K ﹤0.01% 5394
2024
Q2 		$1.1M Buy
668,500
+607,281
+992% +$1.94M ﹤0.01% 5595
2024
Q1 		$315K Sell
61,219
-53,114
-46% -$328K ﹤0.01% 7489
2023
Q4 		$655K Buy
114,333
+66,248
+138% +$327K ﹤0.01% 6299
2023
Q3 		$230K Sell
48,085
-124,230
-72% -$771K ﹤0.01% 7434
2023
Q2 		$732K Buy
+172,315
New +$774K ﹤0.01% 5716
2022
Q4 		– Sell
-17,313
Closed -$183K – 9263
2022
Q3 		$183K Buy
+17,313
New +$161K ﹤0.01% 8252

Other funds holding CRBU

P
Pfizer New York $239M AUM 232.47% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
KCM
Kynam Capital Management Princeton, New Jersey $1.62B AUM 138.67% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
Aberdeen Group
Aberdeen Group Edinburgh, United Kingdom $61.9B AUM 29.81% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Jane Street's CRBU Position: Q1 2026 in Review

Jane Street reduced its Caribou Biosciences (CRBU) stake by 92% in Q1 2026, selling an estimated $465K and leaving 24,975 shares worth $47.5K. The position accounts for ﹤0.01% of the portfolio, ranked #10989.

Jane Street first reported a position in CRBU in Q3 2022 and has held it in 13 quarters since. The position peaked at $1.27M in Q3 2024. 137 funds tracked by Wall St. Rank hold CRBU as of Q1 2026.

  • Jane Street held 24,975 shares of Caribou Biosciences worth $47.5K as of Q1 2026.
  • Jane Street sold 270,710 Caribou Biosciences shares in Q1 2026, an estimated $465K.
  • Caribou Biosciences made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #10989 holding.
  • Jane Street first reported a position in Caribou Biosciences in Q3 2022 and has held it in 13 quarters since.
  • Jane Street's Caribou Biosciences position peaked at $1.27M in Q3 2024.
  • 137 funds tracked by Wall St. Rank held Caribou Biosciences as of Q1 2026.

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