HUDSON TECHNOLOGIES INC /NY Insider Trading Activity
Every SEC Form 4 insider transaction reported for HUDSON TECHNOLOGIES INC /NY (HDSN), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are HDSN insiders buying or selling?
In the last 12 months, HUDSON TECHNOLOGIES INC /NY insiders reported 19 open-market purchases ($6.4M) and 1 sale ($3.6M) — net buying of $2.8M. Since March 2018, Trabud has recorded 62 Form 4 filings for HDSN: 32 buys ($6.7M) and 30 sells ($13.0M).
Source: SEC EDGAR Form 4
What stands out
- The largest open-market purchase in the last 12 months was $4.5M by Hartree Partners, LP (10% Owner) on Jul 2, 2026. SEC ↗
- The most recent open-market purchase was reported on Sep 28, 2026 (20 days ago).
Key Statistics (March 2018 – Sep 28, 2026)
Total Form 4 filings
62
SEC EDGAR
Insider filers
17
Insider buys (32)
$6.7M
Insider sells (30)
$13.0M
Insider sentiment
Net sellingNet insider flow of $6.3M in net selling since March 2018, and $2.8M in net buying over the last 12 months. 7 insider buys in the last 90 days.
Recent HDSN insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Sep 28, 2026 | Hartree Partners, LP | 10% Owner | Purchase | 118.5K | $5.10 | $604.4K | SEC ↗ |
| Sep 23, 2026 | Hartree Partners, LP | 10% Owner | Purchase | 13.5K | $5.10 | $68.9K | SEC ↗ |
| Sep 18, 2026 | Hartree Partners, LP | 10% Owner | Purchase | 11.1K | $5.10 | $56.8K | SEC ↗ |
| Sep 4, 2026 | Hartree Partners, LP | 10% Owner | Purchase | 5.3K | $5.10 | $27.1K | SEC ↗ |
| Aug 26, 2026 | Hartree Partners, LP | 10% Owner | Purchase | 100.6K | $5.50 | $553.0K | SEC ↗ |
| Aug 14, 2026 | Hartree Partners, LP | 10% Owner | Purchase | 5.2K | $5.50 | $28.6K | SEC ↗ |
| Jul 31, 2026 | Hartree Partners, LP | 10% Owner | Purchase | 52.1K | $5.99 | $312.1K | SEC ↗ |
| Jul 8, 2026 | Hartree Partners, LP | 10% Owner | Purchase | 5.2K | $5.99 | $31.4K | SEC ↗ |
| Jul 2, 2026 | Hartree Partners, LP | 10% Owner | Purchase | 764.2K | $5.86 | $4.5M | SEC ↗ |
| May 21, 2026 | Richard Parrillo | Director | Purchase | 10.0K | $4.83 | $48.3K | SEC ↗ |
| May 21, 2026 | Brian J. Bertaux | Chief Financial Officer | Purchase | 2.0K | $4.87 | $9.7K | SEC ↗ |
| May 15, 2026 | Loan Nguyen Mansy | Director | Purchase | 5.0K | $4.96 | $24.8K | SEC ↗ |
| May 15, 2026 | Richard Parrillo | Director | Purchase | 5.0K | $4.96 | $24.8K | SEC ↗ |
| May 15, 2026 | Nicole E Bulgarino | Director | Purchase | 550 | $4.85 | $2.7K | SEC ↗ |
| May 15, 2026 | Eric A Prouty | Director | Purchase | 5.0K | $4.84 | $24.2K | SEC ↗ |
| May 15, 2026 | Alan Sheriff | Director | Purchase | 5.2K | $4.88 | $25.4K | SEC ↗ |
| May 15, 2026 | Jeffrey R Feeler | Director | Purchase | 5.1K | $4.92 | $25.1K | SEC ↗ |
| May 15, 2026 | Kenneth Gaglione | President and CEO | Purchase | 5.0K | $4.90 | $24.5K | SEC ↗ |
| Dec 9, 2025 | COLEMAN BRIAN F | Director | Sale | 484.6K | $7.40 | $3.6M | SEC ↗ |
| Nov 18, 2025 | Vincent P Abbatecola | Director | Purchase | 3.5K | $6.79 | $23.7K | SEC ↗ |
| Nov 12, 2024 | Vincent P Abbatecola | Director | Purchase | 2.5K | $5.98 | $14.9K | SEC ↗ |
| Jun 18, 2024 | Vincent P Abbatecola | Director | Sale | 10.0K | $9.20 | $92.0K | SEC ↗ |
| Dec 15, 2023 | Richard Parrillo | Director | Sale | 72.6K | $13.00 | $943.6K | SEC ↗ |
| Jun 15, 2023 | Eric A Prouty | Director | Sale | 20.0K | $9.56 | $191.2K | SEC ↗ |
| Mar 15, 2023 | Vincent P Abbatecola | Director | Purchase | 1.0K | $8.27 | $8.3K | SEC ↗ |
Showing the 25 most recent of 62 Form 4 filings for HUDSON TECHNOLOGIES INC /NY.
Most active HDSN insiders
- Vincent P Abbatecola11 filings
- Hartree Partners, LP9 filings
- Eric A Prouty7 filings
- Stephen P Mandracchia6 filings
- Dominic J Monetta5 filings
Ask anything about HDSN insider activity
Use Trabud's AI agent to query HUDSON TECHNOLOGIES INC /NY's Form 4 history in plain English — "Show me HDSN CEO purchases this year" or compare it against any other ticker.
Open the AI agentHDSN insider trading FAQ
Are HUDSON TECHNOLOGIES INC /NY insiders buying or selling?
In the last 12 months, HUDSON TECHNOLOGIES INC /NY insiders reported 19 open-market purchases ($6.4M) and 1 sale ($3.6M) — net buying of $2.8M. Since March 2018, Trabud has recorded 62 Form 4 filings for HDSN: 32 buys ($6.7M) and 30 sells ($13.0M). Over the full record that is net selling of $6.3M.
How many insiders trade HDSN stock?
17 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for HUDSON TECHNOLOGIES INC /NY. The most recent filing was accepted on Sep 28, 2026.
Where does Trabud get HDSN insider trading data?
All HDSN insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.