Nasdaq · CIK 0001341235
ALDX Aldeyra Therapeutics, Inc.
Insider trading from SEC Form 4. Last filing Aug 15, 2025. Close $0.92 on Oct 9, 2026, 0% from the 52-week low and -84% from the high.
Last 90 days
Net insider value
$0
no open-market trades
Buys
0
$0 by 0 insiders
Sells
0
$0 by 0 insiders
Insiders on file
11
with a Form 4 at this company
Price and insider trades, last year
ALDXOct 9, 2026 · close 0.92
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
Open-market buys and sells at Aldeyra Therapeutics, Inc., scored.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 27Weak | Michael Alfieri Principal Financial Officer buy | $13k 2,500 shares | - | +278% from low-23% from high | |
| 25Weak | Stephen Machatha Chief Development Officer sell | $114k 22,073 shares | -9% | +270% from low-25% from high | |
| 47Moderate | Perceptive Advisors LLC owner sell | $4.8M 3,400,000 shares | -37% | 0% from low-80% from high | |
| 23Weak | Nancy Miller-Rich director buy | $10k 922 shares | - | - |
Transactions
The last 24 rows filed, every code.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Aug 13, 2025 | Michael Alfieri Principal Financial Officer | POpen-market purchase Common Stock | +2,500 | $5.30 | $13k | 2,500 | Aug 15, 2025 |
| Aug 11, 2025 | Stephen Machatha Chief Development Officer | SOpen-market sale Common Stock | -22,073 | $5.15 | $114k | 221,799 | Aug 13, 2025 |
| Jun 10, 2025 | Gary M. Phillips director | AGrant or award Stock Option (Right to Buy)derivative | +62,728 | $0.00 | $0 | 62,728 | Jun 12, 2025 |
| Jun 10, 2025 | Neal Walker director | AGrant or award Stock Option (Right to Buy)derivative | +62,728 | $0.00 | $0 | 62,728 | Jun 12, 2025 |
| Jun 10, 2025 | Richard Douglas director | AGrant or award Stock Option (Right to Buy)derivative | +62,728 | $0.00 | $0 | 62,728 | Jun 12, 2025 |
| Jun 10, 2025 | Nancy Miller-Rich director | AGrant or award Stock Option (Right to Buy)derivative | +62,728 | $0.00 | $0 | 62,728 | Jun 12, 2025 |
| Jun 10, 2025 | Martin Joseph Joyce director | AGrant or award Stock Option (Right to Buy)derivative | +62,728 | $0.00 | $0 | 62,728 | Jun 12, 2025 |
| Jun 10, 2025 | Ben Bronstein director | AGrant or award Stock Option (Right to Buy)derivative | +62,728 | $0.00 | $0 | 62,728 | Jun 12, 2025 |
| Jun 10, 2025 | Ben Bronstein director | AGrant or award Stock Option (Right to Buy)derivative | +3,619 | $0.00 | $0 | 3,619 | Jun 12, 2025 |
| Jun 10, 2025 | Neal Walker director | AGrant or award Stock Option (Right to Buy)derivative | +2,413 | $0.00 | $0 | 2,413 | Jun 12, 2025 |
| Jun 10, 2025 | Nancy Miller-Rich director | AGrant or award Stock Option (Right to Buy)derivative | +2,413 | $0.00 | $0 | 2,413 | Jun 12, 2025 |
| Jun 10, 2025 | Martin Joseph Joyce director | AGrant or award Stock Option (Right to Buy)derivative | +1,689 | $0.00 | $0 | 1,689 | Jun 12, 2025 |
| Jun 10, 2025 | Richard Douglas director | AGrant or award Stock Option (Right to Buy)derivative | +14,476 | $0.00 | $0 | 14,476 | Jun 12, 2025 |
| Jun 10, 2025 | Gary M. Phillips director | AGrant or award Stock Option (Right to Buy)derivative | +4,825 | $0.00 | $0 | 4,825 | Jun 12, 2025 |
| Jun 10, 2025 | Martin Joseph Joyce director | AGrant or award Stock Option (Right to Buy)derivative | +7,238 | $0.00 | $0 | 7,238 | Jun 12, 2025 |
| Jun 10, 2025 | Richard Douglas director | AGrant or award Stock Option (Right to Buy)derivative | +1,689 | $0.00 | $0 | 1,689 | Jun 12, 2025 |
| Jun 10, 2025 | Gary M. Phillips director | AGrant or award Stock Option (Right to Buy)derivative | +3,619 | $0.00 | $0 | 3,619 | Jun 12, 2025 |
| Jun 10, 2024 | Ben Bronstein director | AGrant or award Stock Option (Right to Buy)derivative | +3,860 | $0.00 | $0 | 3,860 | Jun 12, 2025 |
| Apr 17, 2025 | William D Clark director | AGrant or award Stock Option (Right to Buy)derivative | +76,760 | $0.00 | $0 | 76,760 | Apr 18, 2025 |
| Apr 3, 2025 | Perceptive Advisors LLC owner | SOpen-market sale Common Stockindirect: See Footnote | -3,400,000 | $1.42 | $4.8M | 5,875,851 | Apr 7, 2025 |
| Mar 4, 2025 | Stephen Machatha Chief Development Officer | AGrant or award Stock Option (right to buy)derivative | +202,427 | $0.00 | $0 | 202,427 | Mar 6, 2025 |
| Mar 4, 2025 | Todd C Brady President and CEO | AGrant or award Stock Option (right to buy)derivative | +809,710 | $0.00 | $0 | 809,710 | Mar 6, 2025 |
| May 3, 2021 | Nancy Miller-Rich director | POpen-market purchase Common Stock | +413 | $12.81 | $5,291 | 413 | Oct 21, 2024 |
| Apr 12, 2023 | Nancy Miller-Rich director | POpen-market purchase Common Stock | +509 | $10.13 | $5,156 | 922 | Oct 21, 2024 |
Insiders
Everyone who has filed a Form 4 here.
- Michael AlfieriPrincipal Financial Officer
- Todd C BradyPresident and CEO
- Ben Bronsteindirector
- William D Clarkdirector
- Richard Douglasdirector
- Martin Joseph Joycedirector
- Stephen MachathaChief Development Officer
- Nancy Miller-Richdirector
- Perceptive Advisors LLCdirector, owner
- Gary M. Phillipsdirector
- Neal Walkerceo, president, officer, director
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.