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BlackRock’s Caribou Biosciences CRBU Stock Holding History

BlackRock’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 		$13.8M Buy
7,815,843
+5,672,758
+265% +$11.2M ﹤0.01% 3500
2026
Q1 		$4.07M Buy
2,143,085
+2,062
+0.1% +$3.54K ﹤0.01% 3909
2025
Q4 		$3.4M Buy
2,141,023
+681,703
+47% +$1.43M ﹤0.01% 3967
2025
Q3 		$3.4M Sell
1,459,320
-424,156
-23% -$801K ﹤0.01% 3938
2025
Q2 		$2.37M Sell
1,883,476
-4,462,962
-70% -$4.39M ﹤0.01% 4018
2025
Q1 		$5.79M Sell
6,346,438
-217,751
-3% -$283K ﹤0.01% 3588
2024
Q4 		$10.4M Sell
6,564,189
-669,183
-9% -$1.35M ﹤0.01% 3403
2024
Q3 		$14.2M Buy
7,233,372
+285,552
+4% +$585K ﹤0.01% 3230
2024
Q2 		$11.4M Sell
6,947,820
-57,242
-0.8% -$183K ﹤0.01% 3311
2024
Q1 		$36M Sell
7,005,062
-63,406
-0.9% -$391K ﹤0.01% 2643
2023
Q4 		$40.5M Buy
7,068,468
+984,028
+16% +$4.86M ﹤0.01% 2610
2023
Q3 		$29.1M Buy
6,084,440
+1,319,831
+28% +$8.19M ﹤0.01% 2720
2023
Q2 		$20.2M Buy
4,764,609
+10,046
+0.2% +$45.1K ﹤0.01% 3032
2023
Q1 		$25.2M Buy
4,754,563
+32,480
+0.7% +$202K ﹤0.01% 2849
2022
Q4 		$29.7M Buy
4,722,083
+243,893
+5% +$2.17M ﹤0.01% 2810
2022
Q3 		$47.2M Buy
4,478,190
+428,404
+11% +$3.99M ﹤0.01% 2485
2022
Q2 		$22M Buy
4,049,786
+730,604
+22% +$5.59M ﹤0.01% 3037
2022
Q1 		$30.5M Buy
3,319,182
+1,556,153
+88% +$16.4M ﹤0.01% 2898
2021
Q4 		$26.6M Buy
1,763,029
+581,489
+49% +$11.3M ﹤0.01% 3101
2021
Q3 		$28.2M Buy
+1,181,540
New +$28.9M ﹤0.01% 3058

Other funds holding CRBU

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
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return

BlackRock's CRBU Position: Q2 2026 in Review

BlackRock increased its Caribou Biosciences (CRBU) stake by 265% in Q2 2026, buying an estimated $11.2M and bringing the position to 7,815,843 shares worth $13.8M. The position accounts for ﹤0.01% of the portfolio, ranked #3500.

BlackRock first reported a position in CRBU in Q3 2021 and has held it in 20 quarters since. The position peaked at $47.2M in Q3 2022. 137 funds tracked by Wall St. Rank hold CRBU as of Q2 2026.

  • BlackRock held 7,815,843 shares of Caribou Biosciences worth $13.8M as of Q2 2026.
  • BlackRock bought 5,672,758 Caribou Biosciences shares in Q2 2026, an estimated $11.2M.
  • Caribou Biosciences made up ﹤0.01% of BlackRock's portfolio in Q2 2026, its #3500 holding.
  • BlackRock first reported a position in Caribou Biosciences in Q3 2021 and has held it in 20 quarters since.
  • BlackRock's Caribou Biosciences position peaked at $47.2M in Q3 2022.
  • 137 funds tracked by Wall St. Rank held Caribou Biosciences as of Q2 2026.

Based on BlackRock's 13F filing for Q2 2026, filed 7 Aug 2026.