ALDX's three largest insider shareholders as of September 29, 2026 are Advisors Llc Perceptive (TenPercentOwner, 5.88Mn shares), Todd C Brady (President And Ceo, 1.72Mn shares), Joshua Reed (Chief Financial Officer, 274.82K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Advisors Llc Perceptive | TenPercentOwner | 0 | 5,875,851 | 5,875,851 | 69.1% | 07 Apr, 2025 |
| 2 | Todd C Brady | President And Ceo | 1,721,298 | 0 | 1,721,298 | 20.2% | 05 Jun, 2026 |
| 3 | Joshua Reed | Chief Financial Officer | 274,825 | 0 | 274,825 | 3.2% | 01 Apr, 2022 |
| 4 | Stephen Machatha | Chief Development Officer | 221,799 | 0 | 221,799 | 2.6% | 13 Aug, 2025 |
| 5 | Richard Douglas | Director | 195,000 | 0 | 195,000 | 2.3% | 20 Mar, 2026 |
| 6 | Bruce Greenberg | Officer | 126,382 | 0 | 126,382 | 1.5% | 14 Aug, 2024 |
| 7 | Ben Bronstein | Director | 28,248 | 0 | 28,248 | 0.3% | 29 Jun, 2023 |
| 8 | Martin Joseph Joyce | Director | 23,967 | 0 | 23,967 | 0.3% | 27 Jun, 2022 |
| 9 | Neal Walker | Director | 15,854 | 0 | 15,854 | 0.2% | 24 Aug, 2023 |
| 10 | Gary M. Phillips | Director | 14,812 | 0 | 14,812 | 0.2% | 11 Sep, 2023 |
| 11 | Michael Alfieri | Principal Financial Officer | 7,500 | 0 | 7,500 | 0.1% | 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 | Darlene M Deptula-Hicks | Director | Acquired A | 84,557 | $0.00 | $0 | 84,557 | Direct |
| 09 Jun, 2026 | Ben Bronstein | 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 | Neal Walker | 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 | Richard Douglas | Director | Acquired A | 70,000 | $0.00 | $0 | 70,000 | Direct |
| 09 Jun, 2026 | Darlene M Deptula-Hicks | Director | Acquired A | 9,756 | $0.00 | $0 | 9,756 | Direct |
| 09 Jun, 2026 | William D Clark | Director | Acquired A | 2,323 | $0.00 | $0 | 2,323 | Direct |
| 09 Jun, 2026 | Richard Douglas | Director | Acquired A | 19,909 | $0.00 | $0 | 19,909 | Direct |
| 09 Jun, 2026 | Gary M. Phillips | Director | Acquired A | 6,636 | $0.00 | $0 | 6,636 | Direct |
| 09 Jun, 2026 | Ben Bronstein | Director | Acquired A | 5,309 | $0.00 | $0 | 5,309 | Direct |
| 09 Jun, 2026 | Nancy Miller-Rich | Director | Acquired A | 3,318 | $0.00 | $0 | 3,318 | 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 |