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RBF Capital’s Caribou Biosciences CRBU Stock Holding History

RBF Capital’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 		$76K Hold
40,000
– – ﹤0.01% 483
2025
Q4 		$63.6K Sell
40,000
-40,000
-50% -$84K ﹤0.01% 550
2025
Q3 		$186K Hold
80,000
– – 0.01% 530
2025
Q2 		$101K Buy
+80,000
New +$78.7K ﹤0.01% 572

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

RBF Capital's CRBU Position: Q1 2026 in Review

RBF Capital held its Caribou Biosciences (CRBU) position steady in Q1 2026 at 40,000 shares worth $76K. The position accounts for ﹤0.01% of the portfolio, ranked #483.

RBF Capital first reported a position in CRBU in Q2 2025 and has held it in 4 quarters since. The position peaked at $186K in Q3 2025. 137 funds tracked by Wall St. Rank hold CRBU as of Q1 2026.

  • RBF Capital held 40,000 shares of Caribou Biosciences worth $76K as of Q1 2026.
  • RBF Capital left its Caribou Biosciences share count unchanged in Q1 2026.
  • Caribou Biosciences made up ﹤0.01% of RBF Capital's portfolio in Q1 2026, its #483 holding.
  • RBF Capital first reported a position in Caribou Biosciences in Q2 2025 and has held it in 4 quarters since.
  • RBF Capital's Caribou Biosciences position peaked at $186K in Q3 2025.
  • 137 funds tracked by Wall St. Rank held Caribou Biosciences as of Q1 2026.

Based on RBF Capital's 13F filing for Q1 2026, filed 15 May 2026.