Caribou Biosciences, Inc.
SEC CIK 1619856 · CRBU · last insider filing 2026-02-27
Directors (from insider filings)
| Name | Capacity as filed | Filings |
|---|---|---|
| Guggenhime Andrew | Director | filed 2021 - 2026 |
| Braunstein Scott | Director | filed 2021 - 2026 |
| Haurwitz Rachel E. | Director · See Remarks | filed 2021 - 2026 |
| Sacks Natalie | Director | filed 2021 - 2026 |
| Johnson David LEE | Director | filed 2022 - 2026 |
| Whiting Nancy | Director | filed 2021 - 2026 |
| Zheng Ran | Director | filed 2021 - 2026 |
| Richardson-Heron Dara | Director | filed 2021 - 2026 |
| Long-Mcgie Jeffrey Stephen | Director | filed 2021 - 2021 |
Officers (from insider filings)
| Name | Title as filed | Filings |
|---|---|---|
| Kelly Timothy P | Chief Technology Officer | filed 2024 - 2026 |
| Mcclung Barbara G | See Remarks | filed 2021 - 2026 |
| Khan Ruhi Ahmad | Chief Business Officer | filed 2021 - 2026 |
| Albertson Tina M. | Chief Medical Officer | filed 2024 - 2026 |
| Ryali Sriram | Chief Financial Officer | filed 2025 - 2026 |
| Kanner Steven | See Remarks | filed 2021 - 2025 |
| Fischesser Ryan | VP of Finance and Controller | filed 2021 - 2024 |
| O'Byrne Jason | See Remarks | filed 2021 - 2024 |
| Rizvi Syed Ali-Aamir | Chief Medical Officer | filed 2022 - 2023 |
About this record
From the SEC's insider-transaction filings (Forms 3, 4 and 5). Every reporting director and officer carries a Commission-assigned identifier (CIK), so these footprints are identifier-verified - no name matching involved. Insiders file when they transact, so dates are filing dates: "last filed" never means "served until". This layer is not yet joined to the nonprofit register - identity joins ship only after independent review.
Source: SEC Insider Transactions Data Sets (Forms 3/4/5), US Federal Government public domain.