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CRBU — CARIBOU BIOSCIENCES INC

Reported value held$85.70M
Funds holding (latest)47
SectorHealth Care
Funds holding (Q2 2026)27
Institutional value$37.07M · 21.06M sh
New / Add / Cut / Exit4 / 12 / 8 / 1
Top-5 / Top-10 concentration73.2% / 89.3%
Institutional holdings change Accumulating +38.9% (+5.90M sh)
Institutional value change Up +28.7%

As of Q2 2026, 27 SEC-registered investment managers reported holding CRBU (CARIBOU BIOSCIENCES INC) in their latest 13F filings, with a combined reported value of $37.07M across 21.06M shares. That is +38.9% by share count (+5.90M shares) versus the previous quarter, while reported value moved +28.7%. Ownership is concentrated: the five largest holders account for 73.2% of reported value and the top ten for 89.3%.

Compared with the prior quarter, 4 opened new positions, 12 added to existing stakes, 8 trimmed, 1 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.

CRBU is classified in the Health Care sector.

All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.

FundQuarterSharesValuePortfolio WeightChange
Alkeon Capital Management history Q1 2024 2.74M $14.10M 0.02% Reduce
BlackRock Inc history Q2 2026 7.82M $13.76M 0.00% Add
Farallon Capital Management history Q3 2022 896.37K $9.46M 0.06% Reduce
Coatue Management history Q4 2021 557.67K $8.41M 0.04% Reduce
Vanguard Group history Q4 2025 4.30M $6.84M 0.00% Add
Renaissance Technologies history Q2 2026 2.77M $4.88M 0.01% Add
Davidson Kempner Capital Management history Q3 2021 183.60K $4.38M 0.09% New
Geode Capital Management history Q2 2026 2.37M $4.18M 0.00% Add
Bank of America Corp history Q2 2026 1.41M $2.48M 0.00% Add
Two Sigma Investments history Q2 2026 1.05M $1.84M 0.00% Reduce
Fidelity International (FIL) history Q4 2024 860.67K $1.37M 0.00% Hold
Charles Schwab Investment Management history Q2 2026 775.81K $1.37M 0.00% Add
Norges Bank Investment Management history Q4 2022 216.30K $1.36M 0.00% New
Fidelity Management & Research (FMR) history Q2 2026 727.12K $1.28M 0.00% Hold
Northern Trust Corp history Q2 2026 712.97K $1.25M 0.00% Add
Maverick Capital history Q2 2026 652.54K $1.15M 0.01% Hold
Moore Capital Management history Q3 2021 41.39K $988.00K 0.02% New
UBS Group AG history Q2 2026 517.37K $910.57K 0.00% Add
Wellington Management Group history Q2 2024 523.25K $858.13K 0.00% Add
Marshall Wace history Q2 2026 375.69K $661.21K 0.00% Reduce

View all 47 fund holders →

New Positions (Q2 2026)

Fully Exited (vs previous quarter)

Fund Position History — shares by quarter (top 20 funds)

FundQ3 2021Q4 2021Q1 2022Q2 2022Q3 2022Q4 2022Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026
BlackRock Inc — — — — — — — — — — — — 7.23M 6.56M 6.35M 1.88M 1.46M 2.14M 2.14M 7.82M
Renaissance Technologies — 95.95K 145.10K 239.00K — — 77.70K — — 32.40K — 1.48M 594.20K — — 532.12K 780.42K 1.64M 2.59M 2.77M
Geode Capital Management 342.21K 361.63K 648.76K 674.77K 985.37K 1.03M 1.07M 1.11M 1.58M 1.79M 1.84M 1.91M 2.03M 1.97M 2.05M 980.93K 985.13K 976.81K 1.02M 2.37M
Bank of America Corp 34.38K 90.14K 19.58K 73.15K 175.51K 1.84M 2.63M 2.75M 2.31M 1.59M 1.12M 4.16M 4.57M 1.77M 1.10M 808.90K 1.07M 993.19K 1.30M 1.41M
Two Sigma Investments — — 24.46K — — 121.92K — 49.63K 196.62K 504.60K 229.75K 1.12M 904.46K 1.12M 981.30K 928.52K 783.59K 1.02M 1.76M 1.05M
Charles Schwab Investment Management 133.28K 142.52K 214.54K 207.22K 398.71K 404.90K 410.45K 412.62K 591.85K 807.76K 824.66K 621.21K 739.53K 745.73K 727.22K 529.45K 558.47K 555.63K 559.64K 775.81K
Fidelity Management & Research (FMR) 3.32M 3.32M 2.01M 1.52M 1.44M 1.44M 1.44M 1.44M 1.45M 1.44M 1.45M 1.47M 1.58M 1.65M 1.46M 729.44K 729.00K 725.97K 723.96K 727.12K
Northern Trust Corp 173.00K 184.09K 403.77K 450.08K 523.16K 534.49K 529.00K 531.98K 687.16K 757.36K 734.26K 710.13K 691.21K 714.74K 662.04K 211.99K 205.07K 217.74K 217.74K 712.97K
Maverick Capital 952.54K 652.54K 652.54K 652.54K 652.54K 652.54K 652.54K 652.54K 652.54K 652.54K 652.54K 652.54K 652.54K 652.54K 652.54K 652.54K 652.54K 652.54K 652.54K 652.54K
UBS Group AG 8.96K 17.93K 15.64K 13.85K 48.90K 194.65K 139.75K 115.88K 151.51K 326.53K 408.27K 106.54K 157.32K 396.37K 582.88K 249.10K 319.29K 637.75K 259.17K 517.37K
Marshall Wace — — — — — — — — — 57.73K 368.26K 164.95K — — — — 125.84K 881.11K 1.21M 375.69K
Goldman Sachs Group — 31.72K 279.46K 140.32K 568.33K 352.90K 313.77K 270.64K 395.61K 660.04K 602.90K 1.19M 700.89K 1.07M 822.84K 791.62K 244.82K 489.14K 376.59K 322.88K
Invesco Ltd — — 12.11K 18.41K 315.05K 21.54K 69.46K 65.95K 68.36K 77.03K 70.26K 67.20K 66.09K 65.69K 58.97K 24.74K 12.21K 35.06K 83.50K 301.12K
Wells Fargo & Co 1.30K 26.06K 14.61K 2.26K 2.76K 1.70K 50.57K 23.36K 112.41K 26.93K 35.30K 41.61K 43.23K 91.99K 134.88K 87.75K 25.85K 141.94K 303.65K 298.31K
BNY Mellon 48.13K 67.83K 141.26K 147.19K 181.47K 189.34K 185.99K 204.00K 264.24K 295.23K 270.18K 308.27K 240.83K 225.02K 224.39K 14.01K 14.05K 12.96K 12.51K 222.56K
Citadel Advisors — 176.31K 407.80K 184.47K 104.63K 60.80K 307.95K 32.92K 34.79K 28.30K 569.81K 150.89K 177.96K 74.20K 45.90K 289.82K 359.12K 614.73K 297.93K 197.81K
Morgan Stanley 52.76K 103.07K 202.89K 643.18K 1.21M 1.23M 1.25M 1.27M 1.82M 1.10M 414.50K 618.49K 1.20M 2.75M 482.76K 331.48K 358.22K 298.46K 245.11K 121.32K
Deutsche Bank AG 11.72K 13.01K 27.13K 22.94K 22.02K 25.04K 34.85K 23.02K 29.41K 34.89K 35.67K 29.98K 49.58K 49.58K 49.58K — — — — 89.58K
CPP Investments — — — — — — — — — — — — — — — — — 7.40K 57.90K 81.10K
Citigroup Inc 2.23K 30.50K 22.49K 14.03K 128.62K 103.11K 195.69K 26.35K 221.17K 161.72K 469.52K 52.59K 76.28K 75.78K 63.92K 31.36K 1.57K 74.57K 56.92K 61.31K

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