// company-profile
Caribou Biosciences, Inc.
CRBUExchangeNasdaqSectorBiological Products, (No Diagnostic Substances)Inc.DEFilings47Insiders16
// api This Caribou Biosciences, Inc. insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
No insider transactions in the last 30 days.
No insider activity recorded for CRBU in the last 90 days.
Institutional Ownership
Top 13F-HR holders of Caribou Biosciences, Inc. as of 2026-03-31
Total reported AUM
$67.1M
QoQ change
+24.1%
Reporting period
2026-03-31
#1
Pfizer Inc
CIK 78003
$8.3M
4.7M shares
#2
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
$7.2M
3.8M shares
#3
RENAISSANCE TECHNOLOGIES LLC
CIK 1037389
$4.9M
2.6M shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Feb 25, 2026 | Kelly Timothy P | CRBU | Sale | 6,228 | $1.93 | $12K |
| Feb 24, 2026 | Albertson Tina M. | CRBU | Sale10b5 | 1,066 | $1.96 | $2K |
| Feb 24, 2026 | Khan Ruhi Ahmad | CRBU | Sale10b5 | 6,938 | $1.96 | $14K |
| Feb 24, 2026 | Kelly Timothy P | CRBU | Sale | 3,147 | $1.96 | $6K |
| Feb 24, 2026 | MCCLUNG BARBARA G | CRBU | Sale10b5 | 6,938 | $1.96 | $14K |
45 more transactions hidden
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