Harler Mary Beth
SEC insider (Form 3/4/5 filer). CIK 0002018699. Chief Executive Officer at IGM Biosciences, Inc. (IGMS). 7 reported Form 4/5 transactions since Sep 2024; latest on Aug 14, 2025. Located in MOUNTAIN VIEW, CA.
Companies Harler Mary Beth has filed insider reports for
- IGM Biosciences, Inc. (IGMS): Director, Officer, Chief Executive Officer
Harler Mary Beth
CIK: 0002018699
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)5 (71.4%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)1 (14.3%)
Compensation grants
Other (G, F, J, C, D, …)1 (14.3%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
IGMS
IGM Biosciences, Inc.
DirectorOfficer
Discretionary Trading P&L
Holdings
Transaction History (7 total)
- Aug 14, 2025IGMS
IGM Biosciences, Inc.
DispositionDirect323.7K shares- - Jul 23, 2025IGMS
IGM Biosciences, Inc.
SaleDirect14.5K shares at avg. $1.27$18K - Jun 16, 2025IGMS
IGM Biosciences, Inc.
SaleDirect1.5K shares at avg. $1.20$2K - Mar 14, 2025IGMS
IGM Biosciences, Inc.
SaleDirect7.3K shares at avg. $1.23$9K - Dec 16, 2024IGMS
IGM Biosciences, Inc.
SaleDirect1.7K shares at avg. $7.48$13K - Oct 2, 2024IGMS
IGM Biosciences, Inc.
AwardDirect185K shares- - Sep 13, 2024IGMS
IGM Biosciences, Inc.
SaleDirect1.5K shares at avg. $11.54$17K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Aug 14, 2025 | IGMS IGM Biosciences, Inc. | Disposition | 323,680 | - | - | Direct |
| Jul 23, 2025 | IGMS IGM Biosciences, Inc. | Sale | 14,501 | $1.27 | $18,457 | Direct |
| Jun 16, 2025 | IGMS IGM Biosciences, Inc. | Sale | 1,522 | $1.20 | $1,825 | Direct |
| Mar 14, 2025 | IGMS IGM Biosciences, Inc. | Sale | 7,329 | $1.23 | $9,015 | Direct |
| Dec 16, 2024 | IGMS IGM Biosciences, Inc. | Sale | 1,708 | $7.48 | $12,776 | Direct |
| Oct 2, 2024 | IGMS IGM Biosciences, Inc. | Award | 185,000 | - | $0 | Direct |
| Sep 13, 2024 | IGMS IGM Biosciences, Inc. | Sale | 1,487 | $11.54 | $17,158 | Direct |
1-7 of 7 transactions