Hudson TechnologiesHDSN
13F holders, Q1 2025 (March 31)162holders −6
26new positions
31sold out
6famous investors
$6.17avg. 13F price*
At the end of Q1 2025, 162 institutions reported holding Hudson Technologies Inc. (HDSN) in their 13F filings, down 6 from Q4 2024. 26 opened new positions and 31 sold out. The largest holders were Hartree Partners, LP ($22.0M), BlackRock, Inc. ($19.6M) and Vanguard Group Inc. ($15.9M). 6 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Cliff Asness (0.0% of AQR Capital Management's portfolio).
- Company
- Hudson Technologies Inc.
- CUSIP
- 444144109
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 26 | $24.3M |
| Exits | 31 | $9.0M |
All 13F filers, Q4 2024 → Q1 2025: 5,964,603 shares bought and 4,715,116 shares sold, net +1,249,487 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 162 holders
| Hartree Partners, LP | 8.00% | New | 3,573,142 | $22.0M |
| BlackRock, Inc. | 0.00% | Add +0.3% | 3,170,214 | $19.6M |
| Vanguard Group Inc. | 0.00% | Add +0.2% | 2,582,821 | $15.9M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -5.0% | 1,950,195 | $12.0M |
| Renaissance Technologies | 0.01% | Reduce -0.9% | 1,488,350 | $9.2M |
| New South Capital Management Inc. | 0.44% | Add +12.3% | 1,483,719 | $9.2M |
| D. E. Shaw & Co. | 0.01% | Reduce -4.0% | 1,291,225 | $8.0M |
| Westerly Capital Management, LLC | 3.62% | Add +20.4% | 1,225,000 | $7.6M |
| Geode Capital Management, LLC | 0.00% | Add +3.8% | 1,033,093 | $6.4M |
| State Street Corp. | 0.00% | Reduce -0.0% | 949,987 | $5.9M |
| American Century Companies Inc. | 0.00% | Add +9.8% | 868,059 | $5.4M |
| JPMorgan Chase & Co. | 0.00% | Reduce -25.0% | 640,238 | $4.0M |
| AQR Capital Management | 0.00% | Add +7.2% | 591,645 | $3.7M |
| Morgan Stanley | 0.00% | Reduce -23.5% | 568,146 | $3.5M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Add +76.4% | 547,904 | $3.4M |
| Two Sigma Investments, LP | 0.01% | Add +51.1% | 547,096 | $3.4M |
| Two Sigma Advisers, LP | 0.01% | Add +125.3% | 528,200 | $3.3M |
| Grizzlyrock Capital, LLC | 2.43% | Add +13.7% | 434,716 | $2.7M |
| 683 Capital Management, LLC | 0.28% | Reduce -36.7% | 402,583 | $2.5M |
| Public Employees Retirement System of Ohio | 0.01% | Reduce -3.9% | 402,409 | $2.5M |
| Marathon Capital Management | 0.63% | Reduce -2.0% | 382,700 | $2.4M |
| Northern Trust Corp. | 0.00% | Reduce -6.5% | 353,904 | $2.2M |
| Millennium Management | 0.00% | Add +85.1% | 341,403 | $2.1M |
| JB Capital Partners LP | 0.40% | No change | 306,200 | $1.9M |
| Bridgeway Capital Management, LLC | 0.04% | Add +41.9% | 277,412 | $1.7M |
| Goldman Sachs Group Inc. | 0.00% | Add +49.1% | 245,760 | $1.5M |
| Bastion Asset Management Inc. | 0.74% | Reduce -24.6% | 200,888 | $1.4M |
| Wedge Capital Management L L P | 0.03% | Reduce -23.6% | 220,748 | $1.4M |
| Kestrel Investment Management Corp. | 0.82% | No change | 218,650 | $1.3M |
| Citadel Advisors | 0.00% | Reduce -57.6% | 210,768 | $1.3M |
| Bank of New York Mellon Corp | 0.00% | Reduce -2.1% | 185,315 | $1.1M |
| Qube Research & Technologies Ltd | 0.00% | Reduce -63.2% | 134,461 | $830K |
| Russell Investments Group, Ltd. | 0.00% | Add +18.5% | 131,228 | $810K |
| Jacobs Levy Equity Management, Inc. | 0.00% | Reduce -7.8% | 130,771 | $807K |
| Charles Schwab Investment Management Inc. | 0.00% | Add +4.6% | 127,725 | $788K |
| Ameriprise Financial Inc. | 0.00% | Add +17.4% | 126,091 | $778K |
| Nuveen, LLC | 0.00% | — | 115,574 | $713K |
| Trexquant Investment LP | 0.01% | Reduce -38.7% | 114,729 | $708K |
| O'shaughnessy Asset Management, LLC | 0.01% | New | 109,187 | $674K |
| Aviva PLC | 0.00% | Reduce -2.1% | 103,272 | $637K |
| Victory Capital Management Inc. | 0.00% | Add +41.0% | 102,308 | $631K |
| Franklin Resources Inc. | 0.00% | Add +38.7% | 101,369 | $625K |
| SummerHaven Investment Management, LLC | 0.41% | Add +2.7% | 94,287 | $582K |
| Engineers Gate Manager LP | 0.01% | Reduce -19.6% | 92,933 | $573K |
| State of Wisconsin Investment Board | 0.00% | Add +29.9% | 87,497 | $540K |
| Graham Capital Management, L.P. | 0.03% | Add +7.7% | 87,192 | $538K |
| UBS Group AG | 0.00% | Add +53.9% | 84,680 | $522K |
| STRS Ohio | 0.00% | Reduce -21.1% | 82,700 | $510K |
| Cubist Systematic Strategies, LLC | 0.01% | Reduce -58.2% | 82,152 | $507K |
| Thrivent Financial for Lutherans | 0.00% | New | 80,470 | $497K |
| Pacific Ridge Capital Partners, LLC | 0.13% | Reduce -0.8% | 78,872 | $487K |
| KLP Kapitalforvaltning As | 0.00% | No change | 76,300 | $471K |
| Pinnacle Associates Ltd. | 0.01% | Reduce -31.3% | 75,000 | $463K |
| T. Rowe Price Associates Inc. | 0.00% | Add +86.8% | 73,196 | $452K |
| Susquehanna International Group, LLP | 0.00% | Add +137.4% | 67,610 | $417K |
| Rhumbline Advisers | 0.00% | Reduce -3.3% | 67,284 | $415K |
| Janus Henderson Group PLC | 0.00% | Reduce -7.0% | 65,048 | $402K |
| Deutsche Bank AG | 0.00% | Reduce -8.7% | 64,827 | $400K |
| Kerrisdale Advisers, LLC | 0.17% | No change | 64,100 | $395K |
| Invesco Ltd. | 0.00% | Add +25.4% | 59,065 | $364K |
| Zazove Associates LLC | 0.64% | No change | 56,250 | $347K |
| Bank of America Corp. | 0.00% | Reduce -41.2% | 55,269 | $341K |
| Martingale Asset Management L P | 0.01% | Add +176.2% | 52,604 | $325K |
| Voya Investment Management LLC | 0.00% | Add +32.4% | 49,545 | $306K |
| Raymond James Financial Inc. | 0.00% | Add +3.8% | 46,383 | $286K |
| Barclays PLC | 0.00% | Reduce -33.0% | 45,136 | $278K |
| Truvestments Capital LLC | 0.06% | Reduce -47.0% | 44,201 | $273K |
| GRIMES & Co WEALTH MANAGEMENT, LLC | 0.01% | No change | 41,163 | $254K |
| Comerica Bank | 0.00% | Reduce -60.2% | 40,803 | $252K |
| Exchange Traded Concepts, LLC | 0.00% | Reduce -25.4% | 40,783 | $252K |
| Jane Street Group, LLC | 0.00% | Reduce -53.7% | 39,910 | $246K |
| Seizert Capital Partners, LLC | 0.01% | No change | 38,955 | $240K |
| Commonwealth Equity Services, LLC | 0.00% | Reduce -4.8% | 38,637 | $238K |
| RBF Capital, LLC | 0.01% | New | 37,702 | $233K |
| Ieq Capital, LLC | 0.00% | Add +126.7% | 36,882 | $228K |
| Prudential Financial Inc. | 0.00% | Reduce -66.5% | 36,285 | $224K |
| Alliancebernstein L.P. | 0.00% | Reduce -11.9% | 35,280 | $218K |
| Williams Jones Wealth Management, LLC. | 0.00% | Reduce -22.7% | 34,000 | $210K |
| Royal Bank of Canada | 0.00% | Add +471.3% | 32,493 | $201K |
| Boston Partners | 0.00% | Add +18.6% | 32,272 | $199K |
| Citigroup Inc. | 0.00% | Reduce -9.9% | 31,444 | $194K |
| Isthmus Partners, LLC | 0.02% | New | 30,290 | $187K |
| WINTON GROUP Ltd | 0.01% | Reduce -63.1% | 30,151 | $186K |
| Sherbrooke Park Advisers LLC | 0.08% | Reduce -47.1% | 28,296 | $175K |
| State of Tennessee, Department of Treasury | 0.00% | Reduce -1.2% | 27,354 | $169K |
| Osaic Holdings, Inc. | 0.00% | Add +10.6% | 27,131 | $167K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +4.3% | 26,548 | $164K |
| Wells Fargo & Company | 0.00% | Add +2.3% | 25,922 | $160K |
| BNP Paribas Financial Markets | 0.00% | Reduce -86.8% | 25,151 | $155K |
| MetLife Investment Management, LLC | 0.00% | Add +25.2% | 24,316 | $150K |
| Quantinno Capital Management LP | 0.00% | New | 24,196 | $149K |
| First Trust Advisors LP | 0.00% | Add +4.7% | 24,166 | $149K |
| Intech Investment Management LLC | 0.00% | Add +21.4% | 23,791 | $147K |
| EntryPoint Capital, LLC | 0.06% | Reduce -58.2% | 22,803 | $141K |
| Corebridge Financial, Inc. | 0.00% | Reduce -1.5% | 21,781 | $134K |
| Sanctuary Advisors, LLC | 0.00% | Reduce -50.5% | 21,779 | $134K |
| Jump Financial, LLC | 0.00% | Reduce -69.7% | 21,586 | $133K |
| SG Americas Securities, LLC | 0.00% | Reduce -27.4% | 20,813 | $128K |
| State of Wyoming | 0.02% | Add +103.8% | 19,527 | $120K |
| Legato Capital Management LLC | 0.02% | No change | 19,411 | $120K |
"% of holder's portfolio" is HDSN's weight in each manager's 13F, not the share of Hudson Technologies Inc. the manager owns.