§ BIOTECHNOLOGY
USD · BiotechnologyCRBU
CARIBOU BIOSCIENCES INC
USDSector · Biotechnology
§ 01 · PRICE
Price action
1D5D1M6MYTD1YMAX
§ 03 · SIGNAL STACK · WHAT THE INPUTS SAY
13F FLOW
73 increased/new, 26 decreased/exited (13F)
AC 13F Analysis
§ 05 · WHO OWNS IT
Top institutional holders
| Fund | Shares | % port | Δ Q/Q |
|---|---|---|---|
| Pfizer Inc | 4.7M | 3.5% | ±0% |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.8M | n/a | n/a |
| Renaissance Technologies | 2.6M | 0.0% | +58% |
| Kynam Capital Management, LP | 2.5M | 0.3% | ±0% |
| BlackRock, Inc. | 2.1M | 0.0% | +0% |
| TWO SIGMA INVESTMENTS, LP | 1.8M | 0.0% | +73% |
◇ AC INTELLIGENCE
Top institutional owners for CRBU as of the most recent 13F reporting period (Q1 2026 · Period ended Mar 31). Δ Q/Q reflects share-count change vs. the prior filing — positive green means adding, negative red means trimming. Cross-reference with the ownership-mix bars below to see which strategy cohort is driving the flow.
§ 06 · WHO OWNS IT · BY STRATEGY
OTHER56.4% · 0 holders
OTHER26.7% · 94 holders
PASSIVE / INDEX4.1% · 6 holders
SYSTEMATIC / QUANT4.0% · 4 holders
QUALITY / COMPOUNDER3.9% · 9 holders
DEALER / BANK3.5% · 19 holders
TACTICAL / MACRO1.4% · 2 holders
INCOME / DEFENSIVE0.1% · 2 holders
◇ AC INTELLIGENCE
Ownership mix by behavioral cohort. Top bars indicate which style of capital dominates the float — passive indexing, quality compounders, dealer/bank, systematic quant, etc. Big quality-compounder share means concentrated active conviction; heavy passive share means flows are dictated by index rebalances, not fundamentals.
§ 07 · INSIDER ACTIVITY · LAST 180 DAYS
NO INSIDER FILINGS
◇ AC INTELLIGENCE
No Form 4 filings on record for CRBU in the last 180 days.
§ 08 · COVERAGE · OUR RECENT NOTES
No notes mention CRBU yet.