Caribou Biosciences, Inc. (CRBU)
Data as of , from SEC Form 4 filings.
No open-market insider trades (90d)Watch CRBU
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Timothy P. Kelly - OfficerOpen-market sale$12K- Timothy P. Kelly - OfficerOpen-market sale$6K
About Caribou Biosciences, Inc. (CRBU)
Caribou Biosciences, Inc. files with the SEC under CIK 0001619856 and is classified as biological products (no diagnostic substances). It is grouped with Health Care companies on this site.
CRBU Form 4 activity by transaction type, last 90 days
No Form 4 activity for CRBU in the last 90 days.
CRBU insider transactions (Form 4)
2515 Form 4 filings on record, the earliest from Nov 22, 2024, newest first.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Timothy P. Kelly - Officer | Open-market sale | Common Stock | 6,228 | $1.93 | $12K | |
| Timothy P. Kelly - Officer | Grant or award | Common Stock | 45,000 footnote F1 | $0.00 | - | |
| Timothy P. Kelly - Officer | Open-market sale | Common Stock | 3,147 footnote F2 | $1.96 | $6K | |
| Timothy P. Kelly - Officer | Grant or award | Option to purchase Common Stock | 202,500 | $0.00 | - | |
| ||||||
| Barbara G. McClung - Officer | Grant or award | Common Stock | 45,000 footnote F1 | $0.00 | - | |
| Barbara G. McClung - Officer | Open-market sale | Common Stock | 6,938 footnote F2 | $1.96 | $14K | |
| Barbara G. McClung - Officer | Grant or award | Option to purchase Common Stock | 202,500 | $0.00 | - | |
| ||||||
| Ruhi Ahmad Khan - Officer | Grant or award | Common Stock | 45,000 footnote F1 | $0.00 | - | |
| Ruhi Ahmad Khan - Officer | Open-market sale | Common Stock | 6,938 footnote F2 | $1.96 | $14K | |
| Ruhi Ahmad Khan - Officer | Grant or award | Option to purchase Common Stock | 202,500 | $0.00 | - | |
| ||||||
 Tina M. Albertson - Officer | Grant or award | Common Stock | 55,000 footnote F1 | $0.00 | - | |
| Tina M. Albertson - Officer | Open-market sale | Common Stock | 1,066 footnote F2 | $1.96 | $2K | |
| Tina M. Albertson - Officer | Grant or award | Option to purchase Common Stock | 247,500 | $0.00 | - | |
| ||||||
| Ran Zheng - Director | Grant or award | Option to purchase Common Stock | 45,000 | $0.00 | - | |
| Nancy Whiting - Director | Grant or award | Option to purchase Common Stock | 45,000 | $0.00 | - | |
| Natalie Sacks - Director | Grant or award | Option to purchase Common Stock | 45,000 | $0.00 | - | |
| Dara Richardson-Heron - Director | Grant or award | Option to purchase Common Stock | 45,000 | $0.00 | - | |
| David Lee Johnson - Director | Grant or award | Option to purchase Common Stock | 45,000 | $0.00 | - | |
 Andrew Guggenhime - Director | Grant or award | Option to purchase Common Stock | 45,000 | $0.00 | - | |
| Scott Braunstein - Director | Grant or award | Option to purchase Common Stock | 45,000 | $0.00 | - | |
 Sriram Ryali - Officer | Grant or award | Common Stock | 55,000 footnote F1 | $0.00 | - | |
| Sriram Ryali - Officer | Grant or award | Option to purchase Common Stock | 247,500 | $0.00 | - | |
| ||||||
| Rachel E. Haurwitz - Officer | Grant or award | Common Stock | 151,700 footnote F1 | $0.00 | - | |
| Rachel E. Haurwitz - Officer | Grant or award | Option to purchase Common Stock | 682,500 | $0.00 | - | |
| ||||||
| Ryan Fischesser - Officer | Grant or award | Common Stock | 25,000 | $0.00 | - | |
Item 2.05, 5.02, 7.01, 8.01, 9.01
Item 2.02, 9.01
Item 5.07, 9.01
Item 7.01, 8.01, 9.01
CRBU insider trading FAQ
What is the latest insider trade for CRBU?
Caribou Biosciences, Inc. (CRBU) has filed no insider reports in the last 90 days. The most recent on record is dated 2026-02-27. The full record for CRBU runs to 15 Form 4 filings, the earliest from 2024-11-22. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying CRBU stock?
No insider purchases of CRBU were filed in the last 90 days.
How many insiders are selling CRBU stock?
No insider sales of CRBU were filed in the last 90 days. 5 sales are on record for this company.
Where can I see CRBU SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects CRBU Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Health Care companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Timothy P. Kelly view on EDGAR
- - Timothy P. Kelly view on EDGAR
- - Barbara G. McClung view on EDGAR
- - Ruhi Ahmad Khan view on EDGAR
- - Tina M. Albertson view on EDGAR
- - Ran Zheng view on EDGAR
- - Nancy Whiting view on EDGAR
- - Natalie Sacks view on EDGAR
- - Dara Richardson-Heron view on EDGAR
Related companies with recent insider activity
Learn more
- What the Form 4 transaction codes mean
- Grants, option exercises, gifts and tax withholding are not trades on the market. The codes say which is which.
- Insider activity in Health Care
- Where CRBU's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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