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 Q2	$66.7K	Sell	37,900 -48,600	-56%	-$96.1K	﹤0.01%	10807
2026 Q1	$164K	Buy	86,500 +51,500	+147%	+$88.4K	﹤0.01%	10314
2025 Q4	$55.6K	Buy	+35,000	New	+$73.5K	﹤0.01%	10472
2024 Q1	–	Sell	-16,200	Closed	-$92.8K	–	9303
2023 Q4	$92.8K	Buy	16,200 +3,700	+30%	+$18.3K	﹤0.01%	8611
2023 Q3	$59.8K	Buy	+12,500	New	+$77.5K	﹤0.01%	8113
2022 Q4	–	Sell	-11,700	Closed	-$123K	–	9262
2022 Q3	$123K	Buy	+11,700	New	+$109K	﹤0.01%	8533

Other funds holding CRBU

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Pfizer New York $170M AUM 191.09% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Mackenzie Financial Toronto Ontario, Ontario, Canada $100B AUM 36.93% 1-Year Est. Return

Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return

KCM

Kynam Capital Management Princeton, New Jersey $1.81B AUM 192.15% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

Jane Street's CRBU Position: Q2 2026 in Review

Jane Street increased its Caribou Biosciences (CRBU) stake by 21% in Q2 2026, buying an estimated $10.6K and bringing the position to 30,331 shares worth $53.4K. The position accounts for ﹤0.01% of the portfolio, ranked #10907.

Jane Street first reported a position in CRBU in Q3 2022 and has held it in 14 quarters since. The position peaked at $1.27M in Q3 2024. 137 funds tracked by Wall St. Rank hold CRBU as of Q2 2026.

Jane Street held 30,331 shares of Caribou Biosciences worth $53.4K as of Q2 2026.
Jane Street bought 5,356 Caribou Biosciences shares in Q2 2026, an estimated $10.6K.
Caribou Biosciences made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #10907 holding.
Jane Street first reported a position in Caribou Biosciences in Q3 2022 and has held it in 14 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 Q2 2026.

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