CGEM
Cullinan Therapeutics, Inc.
NASDAQ · Healthcare · Medical - Pharmaceuticals · US
$22.09
−0.32%0
Insider buys (3m)
2
Insider sells (3m)
-$750.4K
Net value (3m)
+64.0%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Aug 14, 2026 | Michaelson Jennifer · officer: Chief Scientific Officer | Sale | 30,000 | $20 |
| Aug 14, 2026 | Michaelson Jennifer · officer: Chief Scientific Officer | M-Exempt | 30,000 | $4.30 |
| Jul 7, 2026 | Michaelson Jennifer · officer: Chief Scientific Officer | Sale | 8,000 | $18 |
| Jul 7, 2026 | Michaelson Jennifer · officer: Chief Scientific Officer | M-Exempt | 4,000 | $4.30 |
| Jul 2, 2026 | SUMER JACQUELYN L · officer: Chief Legal Officer | A-Award | 2,470 | $8.60 |
| Jul 2, 2026 | Fenton Mary Kay · officer: Chief Financial Officer | A-Award | 1,541 | $8.60 |
| Jun 18, 2026 | Meek David D. · director | A-Award | 25,319 | $14 |
| Jun 18, 2026 | Doyle Mittie · director | A-Award | 21,781 | $14 |
| Jun 18, 2026 | Thistle Mary · director | A-Award | 25,319 | $14 |
| Jun 18, 2026 | Allen Andrew R · director | A-Award | 21,781 | $14 |
| Jun 18, 2026 | Webster Stephen W · director | A-Award | 25,319 | $14 |
| Jun 18, 2026 | Rosenberg Anthony · director | A-Award | 25,319 | $14 |
| May 6, 2026 | Michaelson Jennifer · officer: Chief Scientific Officer | Sale | 7,800 | $15 |
| May 6, 2026 | Michaelson Jennifer · officer: Chief Scientific Officer | Sale | 200 | $16 |
| May 6, 2026 | Michaelson Jennifer · officer: Chief Scientific Officer | M-Exempt | 4,000 | $4.30 |
| Mar 9, 2026 | Michaelson Jennifer · officer: Chief Scientific Officer | M-Exempt | 4,000 | $4.30 |
| Mar 9, 2026 | Michaelson Jennifer · officer: Chief Scientific Officer | Sale | 8,000 | $16 |
| Feb 26, 2026 | Michaelson Jennifer · officer: Chief Scientific Officer | Sale | 1,780 | $14 |
| Feb 25, 2026 | Michaelson Jennifer · officer: Chief Scientific Officer | Sale | 3,601 | $14 |
| Feb 25, 2026 | SUMER JACQUELYN L · officer: Chief Legal Officer | Sale | 3,601 | $14 |
| Feb 25, 2026 | Jones Jeffrey Alan · officer: Chief Medical Officer | Sale | 4,582 | $14 |
| Feb 25, 2026 | AHMED NADIM · director, officer: President and CEO | Sale | 13,515 | $14 |
| Feb 25, 2026 | Michaelson Jennifer · officer: Chief Scientific Officer | Sale | 1,752 | $14 |
| Feb 23, 2026 | Michaelson Jennifer · officer: Chief Scientific Officer | Sale | 3,742 | $14 |
| Feb 23, 2026 | SUMER JACQUELYN L · officer: Chief Legal Officer | Sale | 3,742 | $14 |
| Feb 23, 2026 | Michaelson Jennifer · officer: Chief Scientific Officer | Sale | 8,000 | $14 |
| Feb 23, 2026 | Michaelson Jennifer · officer: Chief Scientific Officer | M-Exempt | 8,000 | $4.30 |
| Feb 23, 2026 | Jones Jeffrey Alan · officer: Chief Medical Officer | Sale | 4,982 | $14 |
| Feb 23, 2026 | AHMED NADIM · director, officer: President and CEO | Sale | 16,381 | $14 |
| Feb 23, 2026 | Fenton Mary Kay · officer: Chief Financial Officer | Sale | 4,398 | $14 |
Institutional positioning
13F filings over the trailing two quarters
New 73Increased 146Reduced 91Sold out 19
| Filer | Action | Shares | Filed |
|---|---|---|---|
| MPM BioImpact LLC | Increased | 9,731,341 | Aug 14, 2026 |
| Lynx1 Capital Management LP | Unchanged | 8,963,500 | Aug 13, 2026 |
| LYNX1 CAPITAL MANAGEMENT LP | Unchanged | 8,963,500 | May 4, 2026 |
| BIOIMPACT CAPITAL LLC | Unchanged | 7,648,268 | May 15, 2026 |
| BVF INC/IL | Unchanged | 5,750,683 | Aug 14, 2026 |
| BVF INC/IL | Unchanged | 5,750,683 | May 15, 2026 |
| BlackRock, Inc. | Increased | 5,232,766 | Aug 7, 2026 |
| BLACKROCK, INC. | Increased | 4,449,966 | May 13, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 3,825,950 | Aug 14, 2026 |
| STATE STREET CORP | Increased | 3,668,627 | Aug 7, 2026 |
| Kynam Capital Management, LP | Unchanged | 3,114,132 | Aug 14, 2026 |
| KYNAM CAPITAL MANAGEMENT, LP | Unchanged | 3,114,132 | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 2,614,066 | Aug 13, 2026 |
| STATE STREET CORP | Increased | 2,544,115 | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 2,483,034 | May 15, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Aug 14, 2026