ALDX insider buying
2 cluster buysAldeyra Therapeutics, Inc. · Healthcare
When two or more insiders at Aldeyra Therapeutics, Inc. buy ALDX on the open market around the same time, that clustered conviction is one of the highest-signal patterns in SEC filing data. Below is every cluster we've detected in ALDX plus the full record of qualifying open-market buys, each parsed directly from Form 4 filings and linked back to the source on SEC EDGAR.
Detected clusters
- Mar 18 – Jun 3, 2026Detected Jun 3, 2026High conviction3 insidersTotal bought$523.6KMarket cap$137.5M
- Apr 2 – Apr 5, 2024Detected Apr 5, 20242 insidersTotal bought$2.7MMarket cap$146.6M
All notable open-market buys in ALDX
Every open-market Form 4 purchase, newest first. Click an insider to see their full buying record across companies.
| Date | Insider | Shares | Price | Value | Filing |
|---|---|---|---|---|---|
| Jun 3, 2026 | Brady Todd Ccluster Director, President and CEO | 250,000 | $1.67 | $418.5K | SEC ↗ |
| Mar 19, 2026 | DOUGLAS RICHARDcluster Director | 70,000 | $1.40 | $98.0K | SEC ↗ |
| Mar 18, 2026 | Alfieri Michaelcluster Principal Financial Officer | 5,000 | $1.42 | $7.1K | SEC ↗ |
| Aug 13, 2025 | Principal Financial Officer | 2,500 | $5.30 | $13.3K | SEC ↗ |
| Apr 5, 2024 | EDELMAN JOSEPHcluster 10% Owner | 37,712 | $4.74 | $178.8K | SEC ↗ |
| Apr 4, 2024 | EDELMAN JOSEPHcluster 10% Owner | 140,281 | $4.67 | $655.1K | SEC ↗ |
| Apr 3, 2024 | 10% Owner | 309,847 | $4.09 | $1.3M | SEC ↗ |
| Apr 2, 2024 | 10% Owner | 186,051 | $3.44 | $640.0K | SEC ↗ |
| Apr 12, 2023 | Director | 509 | $10.13 | $5.2K | SEC ↗ |
| May 3, 2021 | Director | 413 | $12.81 | $5.3K | SEC ↗ |
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ALDX insider buying — FAQ
- Are insiders buying ALDX stock?
- Yes — 6 distinct insiders have bought ALDX (Aldeyra Therapeutics, Inc.) on the open market, including 2 cluster buys where two or more insiders bought within a rolling window. The most recent qualifying activity was Jun 5, 2026.
- How much ALDX stock have insiders bought?
- Insiders have bought a combined $3.3M of ALDX across 10 open-market purchases, based on SEC Form 4 filings.
- What is an insider cluster buy in ALDX?
- A cluster buy is two or more distinct Aldeyra Therapeutics, Inc. insiders — officers, directors, or 10% owners — each buying ALDX on the open market within a rolling window. ALDX has 2 detected cluster buys to date.
- Where does this ALDX insider trading data come from?
- Every figure is parsed directly from SEC Form 4 filings on EDGAR, and each purchase on this page links back to its original filing document.
How we track insider buying in ALDX
We continuously poll SEC EDGAR for new Form 4 filings and parse every open-market purchase (transaction code P). A cluster is recorded when two or more distinct insiders — officers, directors, or 10% owners — each buy ALDX within a rolling window. We track clusters at every company size, from micro-caps to mega-caps. Every figure on this page traces back to an official filing; open any row to jump straight to the source document. What counts as a cluster buy?
This page is informational and reflects public filing data. It is not investment advice or a recommendation regarding ALDX.