Siren, L.L.C. (CIK 2005245) reported 5 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-02-06). Recent activity: Buy SRRK (1.6M shares), Buy LXRX (18.6M shares), Buy LXRX (3.8M shares), Buy LXRX (1.5M shares), Buy LXRX (367,145 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-06 | Scholar Rock Holding Corp (SRRK) | Insider | Buy | 1.6M | $11.6M |
| 2026-02-04 | LEXICON PHARMACEUTICALS, INC. (LXRX) | Director | Buy | 18.6M | $24.1M |
| 2026-02-04 | LEXICON PHARMACEUTICALS, INC. (LXRX) | Director | Buy | 3.8M | $5.0M |
| 2026-02-04 | LEXICON PHARMACEUTICALS, INC. (LXRX) | Director | Buy | 1.5M | $2.0M |
| 2026-02-04 | LEXICON PHARMACEUTICALS, INC. (LXRX) | Director | Buy | 367,145 | $0 |
Source: SEC Form 4 filings · as of 2026-02-06