Berner Laura
SEC insider (Form 3/4/5 filer). CIK 0001958382. Chief Operating Officer at TRex Bio, Inc. (TRXB) and 1 other issuer. 12 reported Form 4/5 transactions since Sep 2024; latest on Jun 10, 2026. Located in SOUTH SAN FRANCISCO, CA.
Companies Berner Laura has filed insider reports for
- TRex Bio, Inc. (TRXB): Officer, Chief Operating Officer
- Bolt Biotherapeutics, Inc. (BOLT): Director
Berner Laura
CIK: 0001958382
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 (12 total)
- Jun 10, 2026BOLT
Bolt Biotherapeutics, Inc.
AwardDirectStock Option (Right to Buy)
5K shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
AwardDirectDirector Stock Option (Right to Buy)
2.5K shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
DispositionDirectDirector Stock Option (Right to Buy)
2.5K shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
AwardDirectDirector Stock Option (Right to Buy)
613 shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
DispositionDirectDirector Stock Option (Right to Buy)
613 shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
AwardDirectDirector Stock Option (Right to Buy)
1.3K shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
DispositionDirectDirector Stock Option (Right to Buy)
1.3K shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
AwardDirectDirector Stock Option (Right to Buy)
1.1K shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
DispositionDirectDirector Stock Option (Right to Buy)
1.1K shares- - Dec 12, 2025BOLT
Bolt Biotherapeutics, Inc.
AwardDirectDirector Stock Option (Right to Buy)
1.1K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jun 10, 2026 |  BOLT Bolt Biotherapeutics, Inc. | Award Stock Option (Right to Buy) | 5,000 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Award Director Stock Option (Right to Buy) | 2,500 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Disposition Director Stock Option (Right to Buy) | 2,500 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Award Director Stock Option (Right to Buy) | 613 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Disposition Director Stock Option (Right to Buy) | 613 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Award Director Stock Option (Right to Buy) | 1,250 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Disposition Director Stock Option (Right to Buy) | 1,250 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Award Director Stock Option (Right to Buy) | 1,100 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Disposition Director Stock Option (Right to Buy) | 1,100 | - | - | Direct |
| Dec 12, 2025 | BOLT Bolt Biotherapeutics, Inc. | Award Director Stock Option (Right to Buy) | 1,100 | - | - | Direct |
1-10 of 12 transactions