HDSN Insider Buying — Recent SEC Form 4 Activity
Track insider buying activity for HUDSON TECHNOLOGIES INC /NY ($HDSN). See every SEC Form 4 purchase by CEOs, CFOs, directors, and 10% owners over the last 90 days — sourced directly from EDGAR.
In the past 90 days, 8 insiders at HUDSON TECHNOLOGIES INC /NY (HDSN) made open-market purchases totaling $161,149.75. The most recent transaction was on 2026-05-21.
Recent Insider Purchases at HUDSON TECHNOLOGIES INC /NY
| Date | Insider | Shares | Value |
|---|---|---|---|
| 2026-05-21 | Bertaux Brian J. | 2,000 | $9,740.00 |
| 2026-05-15 | Mansy Loan Nguyen | 1,400 | $6,958.00 |
| 2026-05-15 | Mansy Loan Nguyen | 3,600 | $17,856.00 |
| 2026-05-15 | Parrillo Richard | 1,400 | $6,958.00 |
| 2026-05-15 | Parrillo Richard | 3,600 | $17,856.00 |
| 2026-05-15 | Bulgarino Nicole E | 550 | $2,664.75 |
| 2026-05-15 | Prouty Eric A | 5,000 | $24,200.00 |
| 2026-05-15 | Sheriff Alan | 5,200 | $25,350.00 |
| 2026-05-15 | Feeler Jeffrey R | 5,100 | $25,092.00 |
| 2026-05-15 | Gaglione Kenneth | 5,000 | $24,475.00 |
Top Insiders Buying HDSN
- $25,350.001 purchase
- $25,092.001 purchase
- $24,814.002 purchases
- $24,814.002 purchases
- $24,475.001 purchase
Frequently Asked — HDSN Insider Buying
What is HDSN insider buying?
$HDSN insider buying refers to open-market purchases of HUDSON TECHNOLOGIES INC /NY stock by corporate insiders — officers, directors, and shareholders owning more than 10% of the company. Every purchase is disclosed to the SEC on Form 4 within two business days and is shown on this page.
Why does HDSN insider activity matter?
Insiders have the best view into HUDSON TECHNOLOGIES INC /NY's operations. When they buy their own stock with personal money — rather than selling option grants — it signals conviction. Clusters of insider buying (two or more insiders purchasing within 14 days) have historically preceded above-market returns.
Where does this HDSN insider data come from?
Every transaction on this page is sourced directly from SEC EDGAR Form 4 filings. InsiderAct ingests these filings in near real time and filters for open-market purchases (transaction code P).
How do I get alerts when HDSN insiders buy?
Add $HDSN to your InsiderAct watchlist and enable email alerts. You'll be notified when a new Form 4 purchase is filed — usually within hours of the transaction.
What is a "cluster buy" signal?
InsiderAct flags a cluster buy when two or more independent insiders at the same company buy on the open market within a 14-day window. Cluster buys are the highest-conviction insider signal we track.
Related Insider Activity
Other stocks with recent insider buying on SEC Form 4
Want alerts when HDSN insiders buy?
Add $HDSN to your watchlist and get notified the moment a new Form 4 is filed.
Data sourced from SEC Form 4 filings via EDGAR. Read more: What is SEC Form 4?