LEFF JONATHAN S
SEC insider (Form 3/4/5 filer). CIK 0001215242. Director at Larimar Therapeutics, Inc. (LRMR) and 1 other issuer. 4 reported Form 4/5 transactions since Sep 2024; latest on May 19, 2026. Located in BALA CYNWYD, PA.
Companies LEFF JONATHAN S has filed insider reports for
- Larimar Therapeutics, Inc. (LRMR): Director
- BiomX Inc. (PHGE): Director
LEFF JONATHAN S
CIK: 0001215242
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 (4 total)
- May 19, 2026LRMR
Larimar Therapeutics, Inc.
AwardDirectStock Option (Right to Buy)
55.2K shares- - May 13, 2025LRMR
Larimar Therapeutics, Inc.
AwardDirectStock Option (Right to Buy)
19K shares- - Apr 14, 2025PHGE
BiomX Inc.
AwardDirectCommon Stock Options - right to Buy
17.6K shares- - Apr 14, 2025PHGE
BiomX Inc.
AwardDirectCommon Stock Options - right to Buy
17.6K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| May 19, 2026 |  LRMR Larimar Therapeutics, Inc. | Award Stock Option (Right to Buy) | 55,150 | - | - | Direct |
| May 13, 2025 | LRMR Larimar Therapeutics, Inc. | Award Stock Option (Right to Buy) | 19,000 | - | - | Direct |
| Apr 14, 2025 |  PHGE BiomX Inc. | Award Common Stock Options - right to Buy | 17,600 | - | - | Direct |
| Apr 14, 2025 | PHGE BiomX Inc. | Award Common Stock Options - right to Buy | 17,600 | - | - | Direct |
1-4 of 4 transactions