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XTX Topco’s Caribou Biosciences CRBU Stock Holding History

XTX Topco’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 		$474K Sell
269,157
-54,312
-17% -$107K 0.01% 2510
2026
Q1 		$615K Sell
323,469
-89,911
-22% -$154K 0.01% 1834
2025
Q4 		$657K Sell
413,380
-28,161
-6% -$59.1K 0.02% 1367
2025
Q3 		$1.03M Buy
441,541
+336,308
+320% +$635K 0.05% 557
2025
Q2 		$133K Buy
+105,233
New +$103K 0.01% 1821
2024
Q4 		– Sell
-101,535
Closed -$199K – 2387
2024
Q3 		$199K Sell
101,535
-106,627
-51% -$218K 0.01% 1446
2024
Q2 		$341K Buy
+208,162
New +$665K 0.03% 876
2023
Q3 		– Sell
-15,553
Closed -$66.1K – 1627
2023
Q2 		$66.1K Buy
15,553
+209
+1% +$939 0.01% 1210
2023
Q1 		$81.5K Sell
15,344
-11,078
-42% -$69K 0.02% 1120
2022
Q4 		$166K Buy
+26,422
New +$235K 0.04% 897

Other funds holding CRBU

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
P
Pfizer New York $170M AUM 191.09% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Mackenzie Financial
Mackenzie Financial Toronto Ontario, Ontario, Canada $100B AUM 36.93% 1-Year Est. Return
Renaissance Technologies
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
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

XTX Topco's CRBU Position: Q2 2026 in Review

XTX Topco reduced its Caribou Biosciences (CRBU) stake by 17% in Q2 2026, selling an estimated $107K and leaving 269,157 shares worth $474K. The position accounts for 0.01% of the portfolio, ranked #2510.

XTX Topco first reported a position in CRBU in Q4 2022 and has held it in 10 quarters since. The position peaked at $1.03M in Q3 2025. 137 funds tracked by Wall St. Rank hold CRBU as of Q2 2026.

  • XTX Topco held 269,157 shares of Caribou Biosciences worth $474K as of Q2 2026.
  • XTX Topco sold 54,312 Caribou Biosciences shares in Q2 2026, an estimated $107K.
  • Caribou Biosciences made up 0.01% of XTX Topco's portfolio in Q2 2026, its #2510 holding.
  • XTX Topco first reported a position in Caribou Biosciences in Q4 2022 and has held it in 10 quarters since.
  • XTX Topco's Caribou Biosciences position peaked at $1.03M in Q3 2025.
  • 137 funds tracked by Wall St. Rank held Caribou Biosciences as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.