ALDX's three largest insider shareholders as of September 09, 2026 are Joshua Reed (Chief Financial Officer, 274.82K shares), Stephen Machatha (Chief Development Officer, 221.80K shares), Stephen Machatha (Chief Development Officer, 221.80K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Joshua Reed | Chief Financial Officer | 274,825 | 0 | 274,825 | 38.5% | 01 Apr, 2022 |
| 2 | Stephen Machatha | Chief Development Officer | 221,799 | 0 | 221,799 | 31.1% | 13 Aug, 2025 |
| 3 | Bruce Greenberg | Officer | 126,382 | 0 | 126,382 | 17.7% | 14 Aug, 2024 |
| 4 | Ben Bronstein | Director | 28,248 | 0 | 28,248 | 4.0% | 29 Jun, 2023 |
| 5 | Martin Joseph Joyce | Director | 23,967 | 0 | 23,967 | 3.4% | 27 Jun, 2022 |
| 6 | Neal Walker | Director | 15,854 | 0 | 15,854 | 2.2% | 24 Aug, 2023 |
| 7 | Gary M. Phillips | Director | 14,812 | 0 | 14,812 | 2.1% | 11 Sep, 2023 |
| 8 | Michael Alfieri | Principal Financial Officer | 7,500 | 0 | 7,500 | 1.1% | 19 Mar, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 09 Jun, 2026 | Nancy Miller-Rich | Director | Acquired A | 70,000 | $0.00 | $0 | 70,000 | Direct |
| 09 Jun, 2026 | Gary M. Phillips | Director | Acquired A | 70,000 | $0.00 | $0 | 70,000 | Direct |
| 09 Jun, 2026 | William D Clark | Director | Acquired A | 70,000 | $0.00 | $0 | 70,000 | Direct |
| 09 Jun, 2026 | Richard Douglas | Director | Acquired A | 70,000 | $0.00 | $0 | 70,000 | Direct |
| 09 Jun, 2026 | Neal Walker | Director | Acquired A | 70,000 | $0.00 | $0 | 70,000 | Direct |
| 09 Jun, 2026 | Ben Bronstein | Director | Acquired A | 70,000 | $0.00 | $0 | 70,000 | Direct |
| 09 Jun, 2026 | Darlene M Deptula-Hicks | Director | Acquired A | 84,557 | $0.00 | $0 | 84,557 | Direct |
| 09 Jun, 2026 | Nancy Miller-Rich | Director | Acquired A | 3,318 | $0.00 | $0 | 3,318 | Direct |
| 09 Jun, 2026 | Darlene M Deptula-Hicks | Director | Acquired A | 9,756 | $0.00 | $0 | 9,756 | Direct |
| 09 Jun, 2026 | Richard Douglas | Director | Acquired A | 19,909 | $0.00 | $0 | 19,909 | Direct |
| 09 Jun, 2026 | Ben Bronstein | Director | Acquired A | 5,309 | $0.00 | $0 | 5,309 | Direct |
| 09 Jun, 2026 | Gary M. Phillips | Director | Acquired A | 6,636 | $0.00 | $0 | 6,636 | Direct |
| 09 Jun, 2026 | William D Clark | Director | Acquired A | 2,323 | $0.00 | $0 | 2,323 | Direct |
| 09 Jun, 2026 | Neal Walker | Director | Acquired A | 3,318 | $0.00 | $0 | 3,318 | Direct |
| 09 Jun, 2026 | Ben Bronstein | Director | Acquired A | 4,977 | $0.00 | $0 | 4,977 | Direct |
| 09 Jun, 2026 | Gary M. Phillips | Director | Acquired A | 4,977 | $0.00 | $0 | 4,977 | Direct |
| 09 Jun, 2026 | Richard Douglas | Director | Acquired A | 2,323 | $0.00 | $0 | 2,323 | Direct |
| 03 Jun, 2026 | Todd C Brady | President And Ceo | Acquired P | 250,000 | $1.67 | $418.45K | 1,721,298 | Direct |
| 27 Mar, 2026 | Todd C Brady | President And Ceo | Acquired A | 1,880,510 | $0.00 | $0 | 1,880,510 | Direct |
| 27 Mar, 2026 | Todd C Brady | President And Ceo | Acquired A | 632,318 | $0.00 | $0 | 632,318 | Direct |