Richard Parrillo insider trades: Hudson Technologies (HDSN) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Richard reports to the SEC
Open-market buys and sales
8 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| May 14, 2026 | HDSN | ↑ Buy | 5,000 | $4.96 | $25K | Direct | May 15, 2026 (1d) |
| May 13, 2026 | HDSN | ↑ Buy | 10,000 | $4.83 | $48K | Direct | May 21, 2026 (8d) |
| Dec 14, 2023 | HDSN | ↓ Sell | 72,604 | $13.00 | $944K | Direct | Dec 14, 2023 (0d) |
| May 30, 2018 | HDSN | ↑ Buy | 25,000 | $2.27 | $57K | Direct | May 31, 2018 (1d) |
| Dec 15, 2017 | HDSN | ↑ Buy | 10,000 | $5.79 | $58K | Direct | Dec 19, 2017 (4d) |
| Aug 10, 2016 | HDSN | ↓ Sell | 28,800 | $4.94 | $142K | Direct | Aug 11, 2016 (1d) |
| Aug 9, 2016 | HDSN | ↓ Sell | 21,200 | $4.93 | $104K | Direct | Aug 9, 2016 (0d) |
| May 11, 2015 | HDSN | ↑ Buy | 100,000 | $3.96 | $396K | Direct | May 12, 2015 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other HDSN insiders
Open-market trades in the last 12 months
About Richard Parrillo's insider trades
Richard Parrillo is a director at Hudson Technologies (HDSN). Since May 11, 2015, Richard has reported 5 open-market purchases worth $584K and 3 sales worth $1.2M on SEC Form 4. In the last 12 months: 2 buys ($73K).
Their filings also include grants and awards (17 filings), shares withheld for taxes (4 filings), option exercises (4 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every HDSN insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.