Aldeyra Therapeutics, Inc. (ALDX) has 66 open-market insider trades by 19 insiders since 2014. Over the last six months insiders net bought $418K. The most active filer is Perceptive LIFE Sciences Master FUND Ltd., 10% Owner.
| Name | Title | Tier | Trades | Value | Last Trade |
|---|---|---|---|---|---|
| Perceptive LIFE Sciences Master FUND Ltd. via Joseph Edelman | 10% Owner | — | 12 | $47.8M | 2025-04-03 |
| Perceptive Advisors LLC | 10% Owner | — | 8 | $40.2M | 2022-08-10 |
| Joseph Edelman | 10% Owner | — | 5 | $29.3M | 2024-04-05 |
| Todd C. Brady | CEOPres | — | 10 | $2.6M | 2026-06-03 |
| Jesse I. Treu | Dir | — | 1 | $1.9M | 2019-03-26 |
| Richard Douglas | Dir | — | 6 | $636K | 2026-03-19 |
| Stephen Machatha | — | — | 3 | $540K | 2025-08-11 |
| Martin Joseph Joyce | Dir | — | 5 | $149K | 2022-06-23 |
| Bruce Greenberg | — | — | 2 | $148K | 2024-08-12 |
| Ben Bronstein | Dir | — | 3 | $130K | 2023-06-27 |
| Insider | Title | Type | Value | Date |
|---|---|---|---|---|
| Todd C. Brady | CEO & President | Buy | $418K | 2026-06-03 |
| Richard Douglas | Director | Buy | $98K | 2026-03-19 |
| Michael Alfieri | CFO | Buy | $7K | 2026-03-18 |
| Michael Alfieri | Principal Financial Officer | Buy | $13K | 2025-08-13 |
| Stephen Machatha | — | Sell | $227K | 2025-08-11 |
| Perceptive LIFE Sciences Master FUND Ltd. | 10% Owner | Sell | $4.8M |
Companies that share insiders with ALDX, and sector peers with recent insider buying. Related by who files, not by how the stocks move.
| 2025-04-03 |
| Stephen Machatha | — | Sell | $152K | 2024-08-12 |
| Bruce Greenberg | — | Sell | $103K | 2024-08-12 |
| Joseph Edelman | 10% Owner | Buy | $1.7M | 2024-04-04 |
| Perceptive LIFE Sciences Master FUND Ltd. | 10% Owner | Buy | $3.8M | 2024-04-01 |
| Todd C. Brady | CEO & President | Sell | $1.2M | 2024-03-11 |
| Bruce Greenberg | — | Sell | $45K | 2024-03-11 |
| Stephen Machatha | — | Sell | $161K | 2024-03-11 |
| Perceptive LIFE Sciences Master FUND Ltd. | 10% Owner | Sell | $5.0M | 2023-10-16 |
| Perceptive Advisors LLC | 10% Owner | Buy | $868K | 2022-08-09 |