HUDSON TECHNOLOGIES INC (HDSN): Ownership & Insider Activity
Hedge funds and institutional managers reporting a position in HDSN · Industrials. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
13
13F filers
Aggregate Value
$29.6M
Across holders
Last Price
$5.52
2026-08-24
Sector
Industrials
GICS
Quarterly fund activity8 increased5 reduced2 exited
Full exits: MILLENNIUM MANAGEMENT LLC, TUDOR INVESTMENT CORP ET AL
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 1.44M | $8.3M | 28.0% | 0.0% | Reduced | $-357K | Q2 2026 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 0001164508 | Hedge Fund | 778K | $4.5M | 15.1% | 0.0% | Reduced | $-593K | Q2 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 722K | $4.1M | 14.0% | 0.0% | Added | +$2.0M | Q2 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 574K | $3.3M | 11.1% | 0.0% | Added | $-948K | Q2 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 474K | $2.7M | 9.2% | 0.0% | Added | +$245K | Q2 2026 |
| SHAW D E & CO INC CIK 0001009207 | Hedge Fund | 410K | $2.4M | 7.9% | 0.0% | Added | +$592K | Q2 2026 |
| Ancora Advisors, LLC CIK 0001446114 | Hedge Fund | 303K | $1.7M | 5.9% | 0.0% | Added | — | Q2 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 162K | $929K | 3.1% | 0.0% | Reduced | $-6.9M | Q2 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 132K | $757K | 2.6% | 0.0% | Reduced | $-809K | Q2 2026 |
| Squarepoint Ops LLC CIK 0001642575 | Hedge Fund | 66K | $380K | 1.3% | 0.0% | Added | +$231K | Q2 2026 |
Reduced
Hedge Fund
$8.3M· 28.0% of total· 0.0% port· 1.44M sh· $-357K QoQ· Q2 2026
Reduced
Hedge Fund
$4.5M· 15.1% of total· 0.0% port· 778K sh· $-593K QoQ· Q2 2026
Added
Hedge Fund
$4.1M· 14.0% of total· 0.0% port· 722K sh· +$2.0M QoQ· Q2 2026
Added
Hedge Fund
$3.3M· 11.1% of total· 0.0% port· 574K sh· $-948K QoQ· Q2 2026
Added
Hedge Fund
$2.7M· 9.2% of total· 0.0% port· 474K sh· +$245K QoQ· Q2 2026
Added
Hedge Fund
$2.4M· 7.9% of total· 0.0% port· 410K sh· +$592K QoQ· Q2 2026
Added
Hedge Fund
$1.7M· 5.9% of total· 0.0% port· 303K sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$929K· 3.1% of total· 0.0% port· 162K sh· $-6.9M QoQ· Q2 2026
Reduced
Hedge Fund
$757K· 2.6% of total· 0.0% port· 132K sh· $-809K QoQ· Q2 2026
Added
Hedge Fund
$380K· 1.3% of total· 0.0% port· 66K sh· +$231K QoQ· Q2 2026
Added
Hedge Fund
$284K· 1.0% of total· 0.0% port· 50K sh· +$39K QoQ· Q2 2026
Added
Hedge Fund
$262K· 0.9% of total· 0.0% port· 46K sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$907· 0.0% of total· 0.0% port· 158 sh· $-3K QoQ· Q2 2026
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