Lowinger Timothy B
SEC insider (Form 3/4/5 filer). CIK 0001709775. SVP, Chief Sci.&Tech. Officer at Mersana Therapeutics, Inc. (MRSN). 34 reported Form 4/5 transactions since Sep 2024; latest on Jan 6, 2026. Located in CAMBRIDGE, MA.
Companies Lowinger Timothy B has filed insider reports for
- Mersana Therapeutics, Inc. (MRSN): Officer, SVP, Chief Sci.&Tech. Officer
Lowinger Timothy B
CIK: 0001709775
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
Mersana Therapeutics, Inc.
Discretionary Trading P&L
Holdings
Transaction History (34 total)
- Jan 6, 2026MRSN
Mersana Therapeutics, Inc.
DispositionDirectStock Option (right to buy)
419 shares- - Jan 6, 2026MRSN
Mersana Therapeutics, Inc.
DispositionDirectStock Option (right to buy)
3.1K shares- - Jan 6, 2026MRSN
Mersana Therapeutics, Inc.
DispositionDirectStock Option (right to buy)
696 shares- - Jan 6, 2026MRSN
Mersana Therapeutics, Inc.
DispositionDirectStock Option (right to buy)
713 shares- - Jan 6, 2026MRSN
Mersana Therapeutics, Inc.
DispositionDirectStock Option (right to buy)
920 shares- - Jan 6, 2026MRSN
Mersana Therapeutics, Inc.
DispositionDirectStock Option (right to buy)
6.7K shares- - Jan 6, 2026MRSN
Mersana Therapeutics, Inc.
DispositionDirectStock Option (right to buy)
3K shares- - Jan 6, 2026MRSN
Mersana Therapeutics, Inc.
Tender OfferDirect10.5K shares- - Jan 6, 2026MRSN
Mersana Therapeutics, Inc.
DispositionDirectStock Option (right to buy)
1.6K shares- - Jan 6, 2026MRSN
Mersana Therapeutics, Inc.
DispositionDirectStock Option (right to buy)
275 shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jan 6, 2026 | MRSN Mersana Therapeutics, Inc. | Disposition Stock Option (right to buy) | 419 | - | - | Direct |
| Jan 6, 2026 | MRSN Mersana Therapeutics, Inc. | Disposition Stock Option (right to buy) | 3,090 | - | - | Direct |
| Jan 6, 2026 | MRSN Mersana Therapeutics, Inc. | Disposition Stock Option (right to buy) | 696 | - | - | Direct |
| Jan 6, 2026 | MRSN Mersana Therapeutics, Inc. | Disposition Stock Option (right to buy) | 713 | - | - | Direct |
| Jan 6, 2026 | MRSN Mersana Therapeutics, Inc. | Disposition Stock Option (right to buy) | 920 | - | - | Direct |
| Jan 6, 2026 | MRSN Mersana Therapeutics, Inc. | Disposition Stock Option (right to buy) | 6,702 | - | - | Direct |
| Jan 6, 2026 | MRSN Mersana Therapeutics, Inc. | Disposition Stock Option (right to buy) | 3,047 | - | - | Direct |
| Jan 6, 2026 | MRSN Mersana Therapeutics, Inc. | Tender Offer | 10,466 | - | $0 | Direct |
| Jan 6, 2026 | MRSN Mersana Therapeutics, Inc. | Disposition Stock Option (right to buy) | 1,578 | - | - | Direct |
| Jan 6, 2026 | MRSN Mersana Therapeutics, Inc. | Disposition Stock Option (right to buy) | 275 | - | - | Direct |
1-10 of 34 transactions