Hudson Technologies, Inc.
Hudson Technologies, Inc. (HDSN) Insider Trading
Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.
SEC EDGAR · FMP · HDSN · as of Jun 9, 2026
Activity summary
Buy transactions
12
P-Purchase only
Sell transactions
2
12 Months
Buy/Sell ratio
6.00
Buy/Sell (by trades)
Overall sentiment
Hudson Technologies, Inc. insiders have been net buyers of shares over the past 12 Months, which may signal confidence in the company's outlook.
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only
As of Jun 9, 2026
HDSN insider buying and selling by quarter
HDSN insider selling · HDSN insider buying stocks · quarterly insider activity
Mobile shows last 4Q · Desktop shows full 8Q
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters
As of Jun 9, 2026
Active insiders
Most active in past 12 months · HDSN ceo insider trading
Showing all insiders · Click a card to filter the transactions table below
▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API
Recent insider transactions
HDSN executive sell shares · HDSN board member insider trading · HDSN insider trading SEC filing
Scroll horizontally to see all columns
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| May 19, 2026 | Bertaux Brian J. CFO | Purchase | 2,000 | $10K | Form 4 |
| May 14, 2026 | Mansy Loan Nguyen Director | Purchase | 1,400 | $7K | Form 4 |
| May 14, 2026 | Mansy Loan Nguyen Director | Purchase | 3,600 | $18K | Form 4 |
| May 14, 2026 | Parrillo Richard Director | Purchase | 1,400 | $7K | Form 4 |
| May 14, 2026 | Parrillo Richard Director | Purchase | 3,600 | $18K | Form 4 |
| May 14, 2026 | Bulgarino Nicole E Director | Purchase | 550 | $3K | Form 4 |
| May 13, 2026 | Prouty Eric A Director | Purchase | 5,000 | $24K | Form 4 |
| May 13, 2026 | Sheriff Alan Director | Purchase | 5,200 | $25K | Form 4 |
| May 14, 2026 | Feeler Jeffrey R Director | Purchase | 5,100 | $25K | Form 4 |
| May 13, 2026 | Gaglione Kenneth President and CEO · Director | Purchase | 5,000 | $24K | Form 4 |
| Apr 10, 2026 | Sheriff Alan Director | Award | 4,065 | — | Form 4 |
| Apr 10, 2026 | Feeler Jeffrey R Director | Award | 4,065 | — | Form 4 |
| Jan 8, 2026 | Houghton Kathleen Sr. VP-Sales and Marketing · Director | Option | 50,888 | $194K | Form 4 |
| Jan 8, 2026 | Houghton Kathleen Sr. VP-Sales and Marketing · Director | Option | 47,619 | $76K | Form 4 |
| Jan 8, 2026 | Houghton Kathleen Sr. VP-Sales and Marketing · Director | Option | 120,000 | $90K | Form 4 |
| Jan 8, 2026 | Houghton Kathleen Sr. VP-Sales and Marketing · Director | Other | 34,382 | $244K | Form 4 |
| Jan 8, 2026 | Houghton Kathleen Sr. VP-Sales and Marketing · Director | Other | 21,797 | $155K | Form 4 |
| Jan 8, 2026 | Houghton Kathleen Sr. VP-Sales and Marketing · Director | Other | 44,873 | $319K | Form 4 |
| Dec 5, 2025 | COLEMAN BRIAN F Director | Sale | 484,616 | $3.59M⚡ | Form 4 |
| Nov 17, 2025 | ABBATECOLA VINCENT P Director | Purchase | 3,500 | $24K | Form 4 |
| Sep 24, 2025 | ABBATECOLA VINCENT P Director | Option | 4,744 | $35K | Form 4 |
| Sep 24, 2025 | ABBATECOLA VINCENT P Director | Other | 3,519 | $35K | Form 4 |
| Jul 31, 2025 | Prouty Eric A Director | Option | 4,744 | $35K | Form 4 |
| Jul 31, 2025 | Prouty Eric A Director | Other | 3,713 | $35K | Form 4 |
| Jun 18, 2025 | Bulgarino Nicole E Director | Award | 3,182 | — | Form 4 |
Gaglione Kenneth
President and CEO · Director
Date
May 13
Shares
5,000
Price
$4.89
Value
$24K
Houghton Kathleen
Sr. VP-Sales and Marketing · Director
Date
Jan 8
Shares
50,888
Price
$3.81
Value
$194K
Houghton Kathleen
Sr. VP-Sales and Marketing · Director
Date
Jan 8
Shares
47,619
Price
$1.60
Value
$76K
Houghton Kathleen
Sr. VP-Sales and Marketing · Director
Date
Jan 8
Shares
120,000
Price
$0.75
Value
$90K
Houghton Kathleen
Sr. VP-Sales and Marketing · Director
Date
Jan 8
Shares
34,382
Price
$7.10
Value
$244K
Houghton Kathleen
Sr. VP-Sales and Marketing · Director
Date
Jan 8
Shares
21,797
Price
$7.10
Value
$155K
Houghton Kathleen
Sr. VP-Sales and Marketing · Director
Date
Jan 8
Shares
44,873
Price
$7.10
Value
$319K
⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar
▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —
About HDSN insider trading
HDSN insider trades
Hudson Technologies, Inc. (HDSN) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including Houghton Kathleen (Sr. VP-Sales and Marketing · Director), Prouty Eric A (Director), ABBATECOLA VINCENT P (Director). Over the past 12 months, 5 insiders have filed transactions with the SEC. HDSN insiders have been primarily buying, which may reflect pre-scheduled Rule 10b5-1 plan executions.
For Hudson Technologies, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →
Frequently asked questions
HDSN insider trading · 5 questionsThe insiders of Hudson Technologies, Inc. (HDSN) include executives and directors such as Houghton Kathleen (Sr. VP-Sales and Marketing · Director), Prouty Eric A (Director), ABBATECOLA VINCENT P (Director), among others. Over the past 12 months, 5 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.
▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 9, 2026