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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
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

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

XTX Topco's CRBU Position: Q1 2026 in Review

XTX Topco reduced its Caribou Biosciences (CRBU) stake by 22% in Q1 2026, selling an estimated $154K and leaving 323,469 shares worth $615K. The position accounts for 0.01% of the portfolio, ranked #1834.

XTX Topco first reported a position in CRBU in Q4 2022 and has held it in 9 quarters since. The position peaked at $1.03M in Q3 2025. 137 funds tracked by Wall St. Rank hold CRBU as of Q1 2026.

  • XTX Topco held 323,469 shares of Caribou Biosciences worth $615K as of Q1 2026.
  • XTX Topco sold 89,911 Caribou Biosciences shares in Q1 2026, an estimated $154K.
  • Caribou Biosciences made up 0.01% of XTX Topco's portfolio in Q1 2026, its #1834 holding.
  • XTX Topco first reported a position in Caribou Biosciences in Q4 2022 and has held it in 9 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 Q1 2026.

Based on XTX Topco's 13F filing for Q1 2026, filed 15 May 2026.