Donenberg Phillip B.
SEC insider (Form 3/4/5 filer). CIK 0001238120. Director at Sensei Biotherapeutics, Inc. (SNSE) and 2 other issuers. 7 reported Form 4/5 transactions since Sep 2024; latest on Jun 10, 2026. Located in DALLAS, TX.
Companies Donenberg Phillip B. has filed insider reports for
- Sensei Biotherapeutics, Inc. (SNSE): Director
- Tectonic Therapeutic, Inc. (TECX): Director
- Taysha Gene Therapies, Inc. (TSHA): Director
Donenberg Phillip B.
CIK: 0001238120
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (7 total)
- Jun 10, 2026SNSE
Sensei Biotherapeutics, Inc.
AwardDirectStock Option (right to buy)
12.5K shares- - Jun 9, 2026TECX
Tectonic Therapeutic, Inc.
AwardDirectStock Option (Right to Buy)
10.2K shares- - Jun 1, 2026TSHA
Taysha Gene Therapies, Inc.
AwardDirect21.3K shares- - Apr 10, 2026SNSE
Sensei Biotherapeutics, Inc.
AwardDirectStock Option (right to buy)
23.1K shares- - Feb 13, 2026SNSE
Sensei Biotherapeutics, Inc.
AwardDirectStock Option (right to buy)
1.9K shares- - Jun 9, 2025TECX
Tectonic Therapeutic, Inc.
AwardDirectStock Option (Right to Buy)
10.2K shares- - Jun 2, 2025TSHA
Taysha Gene Therapies, Inc.
AwardDirect56.6K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jun 10, 2026 |  SNSE Sensei Biotherapeutics, Inc. | Award Stock Option (right to buy) | 12,500 | - | - | Direct |
| Jun 9, 2026 |  TECX Tectonic Therapeutic, Inc. | Award Stock Option (Right to Buy) | 10,200 | - | - | Direct |
| Jun 1, 2026 |  TSHA Taysha Gene Therapies, Inc. | Award | 21,335 | - | $0 | Direct |
| Apr 10, 2026 | SNSE Sensei Biotherapeutics, Inc. | Award Stock Option (right to buy) | 23,100 | - | - | Direct |
| Feb 13, 2026 | SNSE Sensei Biotherapeutics, Inc. | Award Stock Option (right to buy) | 1,900 | - | - | Direct |
| Jun 9, 2025 | TECX Tectonic Therapeutic, Inc. | Award Stock Option (Right to Buy) | 10,200 | - | - | Direct |
| Jun 2, 2025 | TSHA Taysha Gene Therapies, Inc. | Award | 56,623 | - | - | Direct |
1-7 of 7 transactions