Optiver Holding’s Caribou Biosciences CRBU Stock Holding History

Optiver Holding’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	$489	Buy	+278	New	+$549	﹤0.01%	2572
2026 Q1	–	Sell	-1,104	Closed	-$1.75K	–	2403
2025 Q4	$1.75K	Hold	1,104	–	–	﹤0.01%	2077
2025 Q3	$2.57K	Hold	1,104	–	–	﹤0.01%	2269
2025 Q2	$1.39K	Hold	1,104	–	–	﹤0.01%	1370
2025 Q1	$1.01K	Buy	1,104 +335	+44%	+$435	﹤0.01%	1272
2024 Q4	$1.22K	Buy	+769	New	+$1.55K	﹤0.01%	973
2024 Q3	–	Sell	-851	Closed	-$1.4K	–	969
2024 Q2	$1.4K	Buy	+851	New	+$2.72K	﹤0.01%	855

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

Optiver Holding's CRBU Position: Q2 2026 in Review

Optiver Holding opened a new position in Caribou Biosciences (CRBU) in Q2 2026: 278 shares worth $489. The stake represents ﹤0.01% of the portfolio and ranks #2572 among its holdings. This is a return to the name: Optiver Holding previously reported a position in CRBU as recently as Q4 2025.

Optiver Holding first reported a position in CRBU in Q2 2024 and has held it in 7 quarters since. The position peaked at $2.57K in Q3 2025. 137 funds tracked by Wall St. Rank hold CRBU as of Q2 2026.

Optiver Holding held 278 shares of Caribou Biosciences worth $489 as of Q2 2026.
Caribou Biosciences was a new Optiver Holding position in Q2 2026.
Caribou Biosciences made up ﹤0.01% of Optiver Holding's portfolio in Q2 2026, its #2572 holding.
Optiver Holding first reported a position in Caribou Biosciences in Q2 2024 and has held it in 7 quarters since.
Optiver Holding's Caribou Biosciences position peaked at $2.57K in Q3 2025.
137 funds tracked by Wall St. Rank held Caribou Biosciences as of Q2 2026.

Based on Optiver Holding's 13F filing for Q2 2026, filed 12 Aug 2026.