Ownership history in PERCEPTIVE ADVISORS LLC · 44 quarters on record
This page tracks every 13F SEC filing in which PERCEPTIVE ADVISORS LLC reported a position in ALDEYRA THERAPEUTICS (ALDX). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.
| Quarter | Action | Shares | Change | Chg % | % of Fund | Mkt Value | Price (EOQ) |
|---|---|---|---|---|---|---|---|
| 2025 Q4 | REDUCED | 4,185,632 | -1,036,679 | -19.9% | 0.39% | $21.7M | $5.18 |
| 2025 Q3 | ADDED | 5,222,311 | +1,170,680 | +28.9% | 0.79% | $27.3M | $5.22 |
| 2025 Q2 | REDUCED | 4,051,631 | -5,224,220 | -56.3% | 0.58% | $15.5M | $3.83 |
| 2025 Q1 | UNCHANGED | 9,275,851 | — | 0% | 1.88% | $53.3M | $5.75 |
| 2024 Q4 | UNCHANGED | 9,275,851 | — | 0% | 1.28% | $46.3M | $4.99 |
| 2024 Q3 | UNCHANGED | 9,275,851 | — | 0% | 1.06% | $50.0M | $5.39 |
| 2024 Q2 | ADDED | 9,275,851 | +682,265 | +7.9% | 0.73% | $30.7M | $3.31 |
| 2024 Q1 | UNCHANGED | 8,593,586 | — | 0% | 0.49% | $28.1M | $3.27 |
| 2023 Q4 | REDUCED | 8,593,586 | -2,756,499 | -24.3% | 0.67% | $30.2M | $3.51 |
| 2023 Q3 | UNCHANGED | 11,350,085 | — | 0% | 2.53% | $75.8M | $6.68 |
As of 2025 Q4 — sorted by position size