CRBU insider buying and SEC filings, explained
Caribou Biosciences, Inc. · CIK 1619856
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Company profile
- Exchanges
- Nasdaq
- Industry (SIC)
- Biological Products, (No Diagnostic Substances)
- State of incorporation
- DE
- Fiscal year end
- Dec 31
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$18K
Planned sales (10b5-1)
$29K
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Feb 25, 2026 | Sale | Timothy P Kelly (Chief Technology Officer) sold 6,228 shares at $1.93 ($12K). Holdings down 8% to 73,125 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 27, 2026 |
| Feb 24, 2026 | Planned (10b5-1) | Tina M. Albertson (Chief Medical Officer) sold 1,066 shares at $1.96 ($2K), marked as a 10b5-1 plan trade. Holdings down 2% to 68,523 shares. | SEC filing Filed Feb 24, 2026 |
| Feb 24, 2026 | Planned (10b5-1) | Ruhi Ahmad Khan (Chief Business Officer) sold 6,938 shares at $1.96 ($14K), marked as a 10b5-1 plan trade. Holdings down 6% to 104,998 shares. | SEC filing Filed Feb 24, 2026 |
| Feb 24, 2026 | Sale | Timothy P Kelly (Chief Technology Officer) sold 3,147 shares at $1.96 ($6K). Holdings down 4% to 79,353 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 24, 2026 |
| Feb 24, 2026 | Planned (10b5-1) | Barbara G. Mcclung (Chief Legal Officer) sold 6,938 shares at $1.96 ($14K), marked as a 10b5-1 plan trade. Holdings down 1% to 481,564 shares. | SEC filing Filed Feb 24, 2026 |
13 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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