Catherine Stehman-Breen
CIK 1702233 · SVP, Chief Medical Officer · last filed 2026-06-09
Catherine Stehman-Breen is a SVP, Chief Medical Officer who has filed 22 SEC Form 4 insider transactions across 4 companies since 2017. The most recent filing, for DYN, was dated Jun 9, 2026. Current disclosed insider exposure totals $2.1M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$2.10M
4
22
$0
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| DYN | Director | 115,713 | $18.19 | $2.10M | $0 | 8 | 2026-06-09 |
| TNYA | Director | — | $0.71 | — | $0 | 5 | 2026-05-29 |
| Generation Bio Co. (GBIO) Delisted | Director | 0 | $5.34 | $0 | $0 | 8 | 2026-02-09 |
| SRPT | SVP, Chief Medical Officer | — | $15.31 | — | $0 | 1 | 2017-04-05 |
Recent Filings
22 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-09 | DYN | Grant (A) | — | $0 | EDGAR |
| 2026-05-29 | TNYA | Grant (A) | — | $0 | EDGAR |
| 2026-02-09 | Generation Bio Co. (GBIO) Delisted | Mixed | −4,752 | $0 | EDGAR |
| 2025-06-06 | Generation Bio Co. (GBIO) Delisted | Grant (A) | — | $0 | EDGAR |
| 2025-06-03 | DYN | Grant (A) | — | $0 | EDGAR |
| 2025-05-30 | TNYA | Grant (A) | — | $0 | EDGAR |
| 2024-10-21 | TNYA | Grant (A) | — | $0 | EDGAR |
| 2024-06-10 | Generation Bio Co. (GBIO) Delisted | Grant (A) | — | $0 | EDGAR |
| 2024-05-24 | DYN | Grant (A) | — | $0 | EDGAR |
| 2023-06-12 | TNYA | Grant (A) | — | $0 | EDGAR |