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Hudson Technologies Inc

HDSN
Exchange
Nasdaq
Industry
Wholesale-Machinery, Equipment & Supplies
SEC CIK
0000925528

In the last 90 days, Hudson Technologies Inc insiders filed 9 open-market purchases and 0 sales; 151 institutions reported holding it in 13F filings for Q2 2026, worth $181.4M in total; no superinvestor holds it.

13F holders, Q2 2025

Institutional positions in Hudson Technologies Inc as of Jun 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
149
−13 vs. Q1 2025
Shares held
33.3M
+1.76M (+5.6%) vs. Q1 2025
Total value
$270.7M
+$75.7M (+38.9%) vs. Q1 2025
New holders
22
44 more added
Sold out
35
58 more reduced

Compare with Q1 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting HDSN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2025: 149 institutions
Q1 2021: 37 institutionsQ2 2021: 53 institutionsQ3 2021: 61 institutionsQ4 2021: 65 institutionsQ1 2022: 78 institutionsQ2 2022: 112 institutionsQ3 2022: 133 institutionsQ4 2022: 143 institutionsQ1 2023: 139 institutionsQ2 2023: 132 institutionsQ3 2023: 143 institutionsQ4 2023: 145 institutionsQ1 2024: 168 institutionsQ2 2024: 161 institutionsQ3 2024: 172 institutionsQ4 2024: 168 institutionsQ1 2025: 162 institutionsQ2 2025: 149 institutionsQ3 2025: 170 institutionsQ4 2025: 168 institutionsQ1 2026: 160 institutionsQ2 2026: 151 institutions
Value heldQ2 2025: $270.7M
Q1 2021: $24.2MQ2 2021: $57.2MQ3 2021: $65.6MQ4 2021: $99.1MQ1 2022: $157.5MQ2 2022: $216.3MQ3 2022: $209.8MQ4 2022: $283.6MQ1 2023: $244.0MQ2 2023: $278.1MQ3 2023: $394.0MQ4 2023: $417.5MQ1 2024: $346.3MQ2 2024: $279.3MQ3 2024: $257.8MQ4 2024: $169.6MQ1 2025: $194.9MQ2 2025: $270.7MQ3 2025: $330.3MQ4 2025: $226.4MQ1 2026: $194.0MQ2 2026: $181.4M
Institutions holding HDSN and their total value by quarter
QuarterHoldersValue
Q2 2026151$181.4M
Q1 2026160$194.0M
Q4 2025168$226.4M
Q3 2025170$330.3M
Q2 2025149$270.7M
Q1 2025162$194.9M
Q4 2024168$169.6M
Q3 2024172$257.8M
Q2 2024161$279.3M
Q1 2024168$346.3M
Q4 2023145$417.5M
Q3 2023143$394.0M
Q2 2023132$278.1M
Q1 2023139$244.0M
Q4 2022143$283.6M
Q3 2022133$209.8M
Q2 2022112$216.3M
Q1 202278$157.5M
Q4 202165$99.1M
Q3 202161$65.6M
Q2 202153$57.2M
Q1 202137$24.2M

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding Hudson Technologies Inc; share changes are against Q1 2025.

Institutions holding HDSN in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Hartree Partners, LP4,000,000$32.5M9.20%+426,858+11.9%Added
BlackRock, Inc.2,905,833$23.6M0.00%−264,381−8.3%Reduced
Vanguard Group Inc2,480,309$20.1M0.00%−102,512−4.0%Reduced
Dimensional Fund Advisors LP2,006,966$16.3M0.00%+56,771+2.9%Added
Westerly Capital Management, LLC2,000,000$16.2M6.88%+775,000+63.3%Added
Renaissance Technologies LLC1,671,850$13.6M0.02%+183,500+12.3%Added
New South Capital Management Inc1,350,943$11.0M0.53%−132,776−8.9%Reduced
Arrowstreet Capital, Limited Partnership1,111,803$9.03M0.01%+563,899+102.9%Added
American Century Companies Inc1,072,754$8.71M0.00%+204,695+23.6%Added
Geode Capital Management, LLC944,424$7.67M0.00%−88,669−8.6%Reduced
State Street Corp944,136$7.67M0.00%−5,851−0.6%Reduced
Royal Bank of Canada837,971$6.80M0.00%+805,478+2,478.9%Added
D. E. Shaw & Co., Inc.791,663$6.43M0.01%−499,562−38.7%Reduced
Morgan Stanley755,548$6.14M0.00%+187,402+33.0%Added
Janus Henderson Group PLC581,562$4.72M0.00%+516,514+794.1%Added
Oaktree Capital Management LPSuperinvestorOaktree Capital562,662$4.57M0.09%+562,662New
Millennium Management LLC466,725$3.79M0.00%+125,322+36.7%Added
Northern Trust Corp429,778$3.49M0.00%+75,874+21.4%Added
Public Employees Retirement System of Ohio410,099$3.33M0.01%+7,690+1.9%Added
Two Sigma Advisers, LP394,100$3.20M0.01%−134,100−25.4%Reduced
683 Capital Management, LLC375,000$3.04M0.31%−27,583−6.9%Reduced
Two Sigma Investments, LP353,279$2.87M0.01%−193,817−35.4%Reduced
Bank of New York Mellon Corp336,700$2.73M0.00%+151,385+81.7%Added
AQR Capital Management LLC330,951$2.69M0.00%−260,694−44.1%Reduced
JB Capital Partners LP306,200$2.49M0.46%00.0%Unchanged
Bridgeway Capital Management, LLC297,112$2.41M0.06%+19,700+7.1%Added
Susquehanna International Group, LLP258,849$2.10M0.00%+191,239+282.9%Added
Marathon Capital Management249,450$2.03M0.52%−133,250−34.8%Reduced
Wedge Capital Management L L P210,302$1.71M0.03%−10,446−4.7%Reduced
Kestrel Investment Management Corp208,850$1.70M1.01%−9,800−4.5%Reduced
O'Shaughnessy Asset Management, LLC176,051$1.43M0.01%+66,864+61.2%Added
Bank of America Corp174,682$1.42M0.00%+119,413+216.1%Added
North Star Investment Management Corp.164,075$1.33M0.09%+164,075New
Jacobs Levy Equity Management, Inc161,792$1.31M0.01%+31,021+23.7%Added
JPMorgan Chase & Co155,675$1.26M0.00%−484,563−75.7%Reduced
Y-Intercept (Hong Kong) Ltd135,222$1.10M0.03%+135,222New
Trexquant Investment LP119,530$970.6K0.01%+4,801+4.2%Added
Russell Investments Group, Ltd.118,876$965.3K0.00%−12,352−9.4%Reduced
Goldman Sachs Group Inc116,656$947.2K0.00%−129,104−52.5%Reduced
Charles Schwab Investment Management Inc114,941$933.3K0.00%−12,784−10.0%Reduced
UBS Group AG107,958$876.6K0.00%+23,278+27.5%Added
Pacific Ridge Capital Partners, LLC103,580$841.1K0.20%+24,708+31.3%Added
Franklin Resources Inc101,149$821.3K0.00%−220−0.2%Reduced
State of Wisconsin Investment Board100,197$813.6K0.00%+12,700+14.5%Added
SummerHaven Investment Management, LLC96,922$787.0K0.52%+2,635+2.8%Added
Ameriprise Financial Inc96,380$782.6K0.00%−29,711−23.6%Reduced
Citadel Advisors LLC95,594$776.2K0.00%−115,174−54.6%Reduced
Nuveen, LLC93,465$758.9K0.00%−22,109−19.1%Reduced
Jane Street Group, LLC93,235$757.1K0.00%+53,325+133.6%Added
Simplex Trading, LLC89,430$726.0K0.02%+89,430New
EdgeRock Capital LLC85,297$692.6K0.22%+85,297New
Lazard Asset Management LLC80,811$656.0K0.00%+75,078+1,309.6%Added
Thrivent Financial for Lutherans80,470$654.0K0.00%00.0%Unchanged
Empowered Funds, LLC75,270$611.2K0.01%+75,270New
Price T Rowe Associates Inc73,706$599.0K0.00%+510+0.7%Added
Invesco Ltd.71,748$582.6K0.00%+12,683+21.5%Added
Voya Investment Management LLC70,535$572.7K0.00%+20,990+42.4%Added
Pinnacle Associates Ltd70,000$568.4K0.01%−5,000−6.7%Reduced
Barclays PLC67,394$547.2K0.00%+22,258+49.3%Added
Rhumbline Advisers66,424$539.4K0.00%−860−1.3%Reduced
STRS Ohio66,000$535.9K0.00%−16,700−20.2%Reduced
Victory Capital Management Inc65,109$528.7K0.00%−37,199−36.4%Reduced
Kerrisdale Advisers, LLC64,100$520.5K0.27%00.0%Unchanged
Aviva PLC61,899$502.6K0.00%−41,373−40.1%Reduced
Zazove Associates LLC56,250$456.8K0.04%00.0%Unchanged
Deutsche Bank AG56,226$456.6K0.00%−8,601−13.3%Reduced
Isthmus Partners, LLC48,516$393.9K0.05%+18,226+60.2%Added
Alliancebernstein L.P.47,880$388.8K0.00%+12,600+35.7%Added
Martingale Asset Management L P45,874$372.5K0.01%−6,730−12.8%Reduced
Quantinno Capital Management LP45,416$368.8K0.00%+21,220+87.7%Added
Raymond James Financial Inc43,883$356.3K0.00%−2,500−5.4%Reduced
Occudo Quantitative Strategies LP43,845$356.0K0.04%+43,845New
Truvestments Capital LLC41,836$339.7K0.07%−2,365−5.4%Reduced
Grimes & Company, Inc.41,163$334.2K0.01%00.0%Unchanged
Comerica Bank40,803$331.3K0.00%00.0%Unchanged
Commonwealth Equity Services, LLC38,758$315.0K0.00%+121+0.3%Added
Seizert Capital Partners, LLC38,023$308.7K0.01%−932−2.4%Reduced
HRT Financial LP35,248$286.0K0.00%+35,248New
Exchange Traded Concepts, LLC31,042$252.1K0.00%−9,741−23.9%Reduced
Boston Partners30,808$250.2K0.00%−1,464−4.5%Reduced
Integrated Advisors Network LLC29,699$241.2K0.01%+29,699New
State of Tennessee, Treasury Department27,354$222.1K0.00%00.0%Unchanged
Ieq Capital, LLC27,239$221.2K0.00%−9,643−26.1%Reduced
Advisor Group Holdings, Inc.27,014$219.3K0.00%−117−0.4%Reduced
Wells Fargo & Company24,978$202.8K0.00%−944−3.6%Reduced
Winton Group Ltd24,429$198.4K0.01%−5,722−19.0%Reduced
MetLife Investment Management24,338$197.6K0.00%+22+0.1%Added
Mirae Asset Global ETFs Holdings Ltd.21,310$173.0K0.00%−5,238−19.7%Reduced
Intech Investment Management LLC19,213$156.0K0.00%−4,578−19.2%Reduced
Legato Capital Management LLC18,479$150.0K0.02%−932−4.8%Reduced
Brevan Howard Capital Management LP17,159$139.3K0.00%+17,159New
EP Wealth Advisors, LLC16,178$131.4K0.00%−341−2.1%Reduced
State of Wyoming16,104$130.8K0.02%−3,423−17.5%Reduced
Citigroup Inc16,082$130.6K0.00%−15,362−48.9%Reduced
First Trust Advisors LP15,929$129.3K0.00%−8,237−34.1%Reduced
Sherbrooke Park Advisers LLC15,432$125.3K0.05%−12,864−45.5%Reduced
RBF Capital, LLC15,193$123.4K0.01%−22,509−59.7%Reduced
Manufacturers Life Insurance Company, The13,452$109.2K0.00%−3,417−20.3%Reduced
Brown Brothers Harriman & Co13,263$107.7K0.00%00.0%Unchanged
Cardinal Point Capital Management, ULC12,850$104.3K0.01%+12,850New