Updated Jul 16, 2026
Harler Mary Beth is a corporate insider tracked by InsiderAlpha. No SEC Form 4 filings recorded in the last 90 days. Lifetime open-market sales: $31K.
Mary Beth Harler is the Chief Executive Officer of IGM Biosciences, Inc. She has been involved in the biotechnology sector, focusing on the development of innovative therapies.
| Role | Insider |
|---|---|
| Notability | 30/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2025-08-14 | IGMS | IGM Biosciences, Inc. | D — Derivative transaction | 323.7K | — | |
| 2025-07-23 | IGMS | IGM Biosciences, Inc. | S — Open-market sale | 14.5K | $1.27 | $18K |
| 2024-12-18 | IGMS | IGM Biosciences, Inc. | S — Open-market sale | 1.7K | $7.48 | $13K |
| 2024-10-04 | IGMS | IGM Biosciences, Inc. | A — Grant or award | 185.0K | $0.00 |
Mary Beth Harler is the Chief Executive Officer of IGM Biosciences, Inc. She has been involved in the biotechnology sector, focusing on the development of innovative therapies.…
Recorded transactions: 0 open-market purchases () and 2 open-market sales ($31K) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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