Caribou Biosciences (CRBU)
Develops genome-edited allogeneic CAR-T candidates for blood cancers.
$1.35
After hours−0.00 (−0.01%)
At close$1.35(+3.85%)
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13F · 13D/G · Form 4
| Institutions | ≈ 49.54% | 49.14M shares | |
|---|---|---|---|
| 145 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail | |||
| Insiders | 1.81% | 1.80M shares | |
| 8 holders · as of Feb 27, 2026 | |||
| Other | ≈ 48.65% | 48.24M shares | |
| remainder | |||
99.18M company shares as of Aug 27, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
Two share counts disagree (107.21M in the company's Sep 22, 2026 report, 99.18M elsewhere); stakes use the report.
This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.
13F, as of Jun 30, 2026
145 holders · 49.14M shares · 25 new positions · 71 increased · 24 reduced · 23 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 7.82M | 7.88% | +5.67M | Aug 7, 2026 |
| Pfizer Inc | 4.69M | 4.73% | 0 | Aug 13, 2026 |
| Vanguard Capital Management LLC | 4.21M | 4.24% | +441.3K | Aug 13, 2026 |
| Mackenzie Financial Corp | 3.65M | 3.68% | +2.71M | Aug 13, 2026 |
| Renaissance Technologies LLC | 2.77M | 2.80% | +183.0K | Aug 13, 2026 |
| Kynam Capital Management, LP | 2.50M | 2.52% | 0 | Aug 14, 2026 |
| Geode Capital Management, LLC | 2.37M | 2.39% | +1.36M | Aug 12, 2026 |
| Acadian Asset Management LLC | 1.77M | 1.79% | +849.4K | Aug 13, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 7.20% | 7.18M | 13G | Jul 27, 2026 |
| Rachel E. Haurwitzincl. Felix Adler, The City Canyon Family Trust dated May 31, 2021 | 5.00% | 4.72M | 13D | Apr 25, 2025 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Feb 25, 2026 | Timothy P. Kellyofficer: Chief Technology Officer | Sale | 6,228 | $1.93 | 73,125 |
| Feb 24, 2026 | Tina M. Albertsonofficer: Chief Medical Officer | Sale | 1,066 | $1.96 | 68,523 |
| Feb 24, 2026 | Ruhi Ahmad Khanofficer: Chief Business Officer | Sale | 6,938 | $1.96 | 104,998 |
| Feb 24, 2026 | Barbara G. Mcclungofficer: Chief Legal Officer | Sale | 6,938 | $1.96 | 481,564 |
| Feb 24, 2026 | Timothy P. Kellyofficer: Chief Technology Officer | Sale | 3,147 | $1.96 | 79,353 |
House and Senate disclosures
Not reported.