# HUDSON TECHNOLOGIES INC COM

HUDSON TECHNOLOGIES INC COM is a security (CUSIP 444144109) tracked across SEC portfolio filings. 163 institutional managers reported $195.2M on Form 13F as of 2026-06-30; 14 registered fund positions totaling $6.4M via N-PORT as of 2026-05-31.

## Summary

- Issuer: HUDSON TECHNOLOGIES INC
- Class: COM
- CUSIP: 444144109
- Asset category: EC
- 13F holders: 163
- 13F value: $195.2M
- 13F period: 2026-06-30
- N-PORT fund positions: 14
- N-PORT value: $6.4M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 163 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| Hartree Partners, LP | NEW YORK, NY | $22.3M | 3,800,000 |
| [WESTERLY CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/140089) | SAN FRANCISCO, CA | $18.7M | 3,175,000 |
| BlackRock, Inc. | New York, NY | $16.8M | 2,862,539 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $16.0M | 2,338,710 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $12.6M | 2,148,311 |
| [RENAISSANCE TECHNOLOGIES LLC](https://search.stillhousedata.com/firm/106661) | NEW YORK, NY | $8.8M | 1,504,250 |
| AMERICAN CENTURY COMPANIES INC | KANSAS CITY, MO | $8.7M | 1,487,774 |
| NEW SOUTH CAPITAL MANAGEMENT INC | MEMPHIS, TN | $7.3M | 1,241,223 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $5.6M | 948,546 |
| STATE STREET CORP | BOSTON, MA | $5.3M | 897,873 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | BOSTON, MA | $5.2M | 881,235 |
| [CASPIAN CAPITAL LP](https://search.stillhousedata.com/firm/155751) | New York, NY | $4.3M | 728,306 |
| [SEGALL BRYANT & HAMILL, LLC](https://search.stillhousedata.com/firm/106505) | CHICAGO, IL | $3.7M | 628,341 |
| [BRIDGEWAY CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/111441) | HOUSTON, TX | $2.9M | 498,109 |
| MORGAN STANLEY | NEW YORK, NY | $2.8M | 471,947 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $2.5M | 0.31% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $1.1M | 0.60% |
| [U.S. MICRO CAP PORTFOLIO](https://search.stillhousedata.com/fund/S000000948) | DFA INVESTMENT DIMENSIONS GROUP INC | $1.0M | 1.36% |
| [Russell Investments U.S. Small Cap Equity ETF](https://search.stillhousedata.com/fund/S000089990) | Russell Investments Exchange Traded Funds | $422K | 85.39% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $391K | 0.81% |
| 180 DEGREE CAPITAL CORP. /NY/ | 180 DEGREE CAPITAL CORP. /NY/ | $306K | 63.75% |
| [Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF](https://search.stillhousedata.com/fund/S000048296) | Goldman Sachs ETF Trust | $246K | 2.50% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $144K | 0.02% |
| [VANGUARD GROWTH AND INCOME FUND](https://search.stillhousedata.com/fund/S000002913) | VANGUARD QUANTITATIVE FUNDS | $138K | 0.08% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $126K | 0.04% |
| [DWS Small Cap Index VIP](https://search.stillhousedata.com/fund/S000006223) | DEUTSCHE DWS INVESTMENTS VIT FUNDS | $32K | 0.77% |
| [Vericimetry U.S. Small Cap Value Fund](https://search.stillhousedata.com/fund/S000033942) | VERICIMETRY FUNDS | $16K | 0.96% |
| [TIAA Separate Account VA-1 - Stock Index Account](https://search.stillhousedata.com/fund/S000005098) | TIAA Separate Account VA-1 | $6K | 0.05% |
| [Blackstone Alternative Multi-Strategy Fund](https://search.stillhousedata.com/fund/S000045538) | Blackstone Alternative Investment Funds | $6K | 0.02% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/444144109.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.