10 insiders reported 33 Form 4 transactions for LB PHARMACEUTICALS INC (LBRX) over the past 18 months (most recent 2025-09-16). Recent activity: Belldegrun Arie (10% Owner) Buy 547,648 shares, Vida Ventures Management Co. LLC (10% Owner) Buy 767 shares, Vida Ventures III-A, L.P. (10% Owner) Buy 547,648 shares, Vida Ventures III, L.P. (10% Owner) Buy 547,648 shares, Vida Ventures Management Co. LLC (10% Owner) Buy 547,648 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2025-09-16 | Belldegrun Arie | 10% Owner | Buy | 547,648 | $0 |
| 2025-09-16 | Vida Ventures Management Co. LLC | 10% Owner | Buy | 767 | $11,505 |
| 2025-09-16 | Vida Ventures III-A, L.P. | 10% Owner | Buy | 547,648 | $0 |
| 2025-09-16 | Vida Ventures III, L.P. | 10% Owner | Buy | 547,648 | $0 |
| 2025-09-16 | Vida Ventures Management Co. LLC | 10% Owner | Buy | 547,648 | $0 |
| 2025-09-16 | Belldegrun Arie | 10% Owner | Buy | 1,262 | $0 |
| 2025-09-16 | Vida Ventures GP III, L.L.C. | 10% Owner | Buy | 1,262 | $0 |
| 2025-09-16 | Vida Ventures GP III, L.L.C. | 10% Owner | Buy | 547,648 | $0 |
| 2025-09-16 | Vida Ventures III, L.P. | 10% Owner | Buy | 1,262 | $0 |
| 2025-09-16 | Vida Ventures Management Co. LLC | 10% Owner | Buy | 1,262 | $0 |
| 2025-09-16 | Belldegrun Arie | 10% Owner | Buy | 332,566 | $5.0M |
| 2025-09-16 | Vida Ventures GP III, L.L.C. | 10% Owner | Buy | 332,566 | $5.0M |
| 2025-09-16 | Vida Ventures III-A, L.P. | 10% Owner | Buy | 332,566 | $5.0M |
| 2025-09-16 | Vida Ventures III, L.P. | 10% Owner | Buy | 332,566 | $5.0M |
| 2025-09-16 | Vida Ventures Management Co. LLC | 10% Owner | Buy | 332,566 | $5.0M |
| 2025-09-16 | Belldegrun Arie | 10% Owner | Buy | 767 | $11,505 |
| 2025-09-16 | Vida Ventures GP III, L.L.C. | 10% Owner | Buy | 767 | $11,505 |
| 2025-09-16 | Vida Ventures III-A, L.P. | 10% Owner | Buy | 767 | $11,505 |
| 2025-09-16 | Vida Ventures III, L.P. | 10% Owner | Buy | 767 | $11,505 |
| 2025-09-16 | KROIN DAVID | 10% Owner | Buy | 686,138 | $0 |
| 2025-09-16 | Pontifax Management 4 G.P. (2015) Ltd. | 10% Owner | Buy | 411,681 | $0 |
| 2025-09-16 | Pontifax Management 4 G.P. (2015) Ltd. | 10% Owner | Buy | 1.0M | $15.0M |
| 2025-09-16 | Nussbaum Ran | Director | Buy | 411,681 | $0 |
| 2025-09-16 | Nussbaum Ran | Director | Buy | 1.0M | $15.0M |
| 2025-09-16 | Vida Ventures III-A, L.P. | 10% Owner | Buy | 1,262 | $0 |
Source: SEC Form 4 filings · as of 2025-09-16