HUDSON TECHNOLOGIES INC (HDSN) Institutional Ownership Changes & 13F Activity
HUDSON TECHNOLOGIES INC (HDSN). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q4 2025). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Hartree Partners, Lp, Westerly Capital Management, Llc, Caspian Capital Lp, D. E. Shaw & Co., Inc., and Lazard Asset Management Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Algert Global Llc | Buy | +19,340 | +81.4% | 43,105 | $295.27K | Q4 2025 | Aug 11, 2026 |
| Sunbelt Securities, Inc. | Buy | +27 | — | 27 | $185.00 | Q4 2025 | Feb 20, 2026 |
| Raymond James Financial Inc | Buy | +39,609 | — | 39,609 | $271.32K | Q4 2025 | Feb 18, 2026 |
| Ep Wealth Advisors, Llc | Buy | +20,417 | — | 20,417 | $139.86K | Q4 2025 | Feb 18, 2026 |
| Hartree Partners, Lp | Buy | +3,800,000 | — | 3,800,000 | $26.03M | Q4 2025 | Feb 17, 2026 |
| Westerly Capital Management, Llc | Buy | +2,550,000 | — | 2,550,000 | $17.47M | Q4 2025 | Feb 17, 2026 |
| Caspian Capital Lp | Buy | +728,306 | — | 728,306 | $4.99M | Q4 2025 | Feb 17, 2026 |
| D. E. Shaw & Co., Inc. | Buy | +582,780 | — | 582,780 | $3.99M | Q4 2025 | Feb 17, 2026 |
| Lazard Asset Management Llc | Buy | +431,769 | — | 431,769 | $2.96M | Q4 2025 | Feb 17, 2026 |
| Public Employees Retirement System Of Ohio | Buy | +410,099 | — | 410,099 | $2.81M | Q4 2025 | Feb 17, 2026 |
| Northern Trust Corp | Buy | +391,889 | — | 391,889 | $2.68M | Q4 2025 | Feb 17, 2026 |
| Bridgeway Capital Management, Llc | Buy | +378,255 | — | 378,255 | $2.59M | Q4 2025 | Feb 17, 2026 |
| Aqr Capital Management Llc | Buy | +339,352 | — | 339,352 | $2.32M | Q4 2025 | Feb 17, 2026 |
| 683 Capital Management, Llc | Buy | +335,000 | — | 335,000 | $2.29M | Q4 2025 | Feb 17, 2026 |
| Millennium Management Llc | Buy | +189,061 | — | 189,061 | $1.30M | Q4 2025 | Feb 17, 2026 |
| Two Sigma Advisers, Lp | Buy | +167,300 | — | 167,300 | $1.15M | Q4 2025 | Feb 17, 2026 |
| Qube Research & Technologies Ltd | Buy | +163,703 | — | 163,703 | $1.12M | Q4 2025 | Feb 17, 2026 |
| Credit Agricole S A | Buy | +140,000 | — | 140,000 | $959.00K | Q4 2025 | Feb 17, 2026 |
| Russell Investments Group, Ltd. | Buy | +138,687 | — | 138,687 | $950.00K | Q4 2025 | Feb 17, 2026 |
| Two Sigma Investments, Lp | Buy | +135,400 | — | 135,400 | $927.49K | Q4 2025 | Feb 17, 2026 |
| Quantinno Capital Management Lp | Buy | +121,947 | — | 121,947 | $835.34K | Q4 2025 | Feb 17, 2026 |
| Point72 Asset Management, L.P. | Buy | +113,263 | — | 113,263 | $775.85K | Q4 2025 | Feb 17, 2026 |
| State Of Wisconsin Investment Board | Buy | +99,764 | — | 99,764 | $683.38K | Q4 2025 | Feb 17, 2026 |
| Bank Of America Corp | Buy | +83,404 | — | 83,404 | $571.32K | Q4 2025 | Feb 17, 2026 |
| Citadel Advisors Llc | Buy | +80,083 | — | 80,083 | $548.57K | Q4 2025 | Feb 17, 2026 |
| Price T Rowe Associates Inc | Buy | +73,706 | — | 73,706 | $505.00K | Q4 2025 | Feb 17, 2026 |
| Ameriprise Financial Inc | Buy | +71,167 | — | 71,167 | $487.49K | Q4 2025 | Feb 17, 2026 |
| Inspire Investing, Llc | Buy | +68,583 | — | 68,583 | $469.79K | Q4 2025 | Feb 17, 2026 |
| Trexquant Investment Lp | Buy | +59,580 | — | 59,580 | $408.12K | Q4 2025 | Feb 17, 2026 |
| Kerrisdale Advisers, Llc | Buy | +57,622 | — | 57,622 | $394.71K | Q4 2025 | Feb 17, 2026 |
Frequently asked questions about HDSN activity
Which institutional owners are buying HDSN?
Institutional owners buying HDSN include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in HDSN activity?
"Buy" means an investor increased their reported position in HDSN compared to the prior reporting period. This reflects growing exposure to HUDSON TECHNOLOGIES INC (HDSN) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in HDSN increasing?
Institutional interest in HDSN can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
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