Marantz Jing L. (CIK 1834528) reported 3 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-02-19). Recent activity: Sell SRRK (4,157 shares), Buy SRRK (34,482 shares), Sell SRRK (5,798 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-19 | Scholar Rock Holding Corp (SRRK) | CHIEF MEDICAL OFFICER | Sell | 4,157 | $193,425 |
| 2026-02-11 | Scholar Rock Holding Corp (SRRK) | Chief Medical Officer | Buy | 34,482 | $0 |
| 2026-01-21 | Scholar Rock Holding Corp (SRRK) | CHIEF MEDICAL OFFICER | Sell | 5,798 | $257,895 |
来源：SEC Form 4 申报文件 · 截至 2026-02-19