Company profile
Hudson Technologies Inc /ny Insider Trading
HDSNEvery SEC Form 4 insider trading filing for Hudson Technologies Inc /ny (HDSN) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Wholesale-Machinery, Equipment & Supplies
- CIK
- 0000925528
- Filings
- 64
- Insiders
- 14
- Last filing
- 2026-09-16
Activity summary
Recent insider activity is bullish. Over the last 30 days, 4 insiders purchased shares (net $637K). Buying was led by Hartree Partners, LP.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Hudson Technologies Inc /ny insiders are net buyers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $4.7M.
90 day insight
Over the last 90 days, Hudson Technologies Inc /ny insiders bought $5.9M across 13 transactions with no open-market sales.
- Most active insider: Hartree Partners, LP with 13 transactions totaling $5.9M.
- Largest single purchase: $1.7M by Hartree Partners, LP on Jul 1, 2026.
Activity skews bullish — buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 16, 2026 | Hartree Partners, LP | HDSN | Purchase | 11,136 | $5.10 | $57K |
| Sep 2, 2026 | Hartree Partners, LP | HDSN | Purchase | 5,317 | $5.10 | $27K |
| Aug 25, 2026 | Hartree Partners, LP | HDSN | Purchase | 91,166 | $5.50 | $501K |
| Aug 24, 2026 | Hartree Partners, LP | HDSN | Purchase | 9,446 | $5.50 | $52K |
| Aug 12, 2026 | Hartree Partners, LP | HDSN | Purchase | 5,198 | $5.50 | $29K |
45 more transactions hidden
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Query this yourself
The same rows, over the API.
curl "https://api.form4api.com/v1/transactions?ticker=HDSN" \
-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of Hudson Technologies Inc /ny as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →