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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 10 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, Q4 2021

Institutional positions in Hudson Technologies Inc as of Dec 31, 2021. 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
65
+4 vs. Q3 2021
Shares held
22.3M
+3.83M (+20.7%) vs. Q3 2021
Total value
$99.1M
+$33.5M (+51.1%) vs. Q3 2021
New holders
14
21 more added
Sold out
10
22 more reduced

Compare with Q3 2021: 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 holdersQ4 2021: 65 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 heldQ4 2021: $99.1M
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, Q4 2021

Shares, value and share of portfolio for each institution holding Hudson Technologies Inc; share changes are against Q3 2021.

Institutions holding HDSN in Q4 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Bank of America Corp44$00.00%−991−95.7%Reduced
Tyler-Stone Wealth Management500$2.00K0.00%+500New
American Portfolios Advisors686$3.05K0.00%00.0%Unchanged
ClariVest Asset Management LLC1,337$6.00K0.00%+1,337New
UBS Group AG2,125$9.00K0.00%+1,585+293.5%Added
Wells Fargo & Company2,194$10.0K0.00%−1,999−47.7%Reduced
Koshinski Asset Management, Inc.2,500$11.1K0.00%00.0%Unchanged
Envestnet Asset Management Inc10,749$48.0K0.00%+10,749New
1620 Investment Advisors, Inc.10,968$49.0K0.05%+10,968New
Heritage Investors Management Corp11,200$50.0K0.00%00.0%Unchanged
Dorsey Wright & Associates13,618$60.0K0.01%+13,618New
Jump Financial, LLC16,028$71.0K0.00%−272−1.7%Reduced
Portolan Capital Management, LLC16,523$73.0K0.00%−1,782−9.7%Reduced
Kestra Advisory Services, LLC16,650$74.0K0.00%+16,650New
Simplex Trading, LLC17,332$76.0K0.00%+15,154+695.8%Added
Cubist Systematic Strategies, LLC17,496$78.0K0.00%+5,844+50.2%Added
Hillsdale Investment Management Inc.19,200$85.0K0.01%+19,200New
Occudo Quantitative Strategies LP20,547$91.0K0.01%−14,867−42.0%Reduced
Wolverine Trading, LLC23,536$102.0K0.00%+23,536New
Goldman Sachs Group Inc29,321$130.0K0.00%+2,394+8.9%Added
Grimes & Company, Inc.33,422$148.0K0.01%00.0%Unchanged
Sequoia Financial Advisors, LLC33,721$150.0K0.00%+33,721New
Game Plan Financial Advisors, LLC37,000$164.0K0.09%−3,000−7.5%Reduced
Susquehanna International Group, LLP38,437$171.0K0.00%−55,976−59.3%Reduced
Blair William & Co40,900$182.0K0.00%+1,000+2.5%Added
Caxton Associates LP42,079$187.0K0.02%+42,079New
Engineers Gate Manager LP45,343$201.0K0.01%+7,682+20.4%Added
Price T Rowe Associates Inc46,060$205.0K0.00%00.0%Unchanged
Quadrature Capital Ltd46,232$205.0K0.01%+1,750+3.9%Added
Ritholtz Wealth Management49,330$219.0K0.01%+27,762+128.7%Added
Northern Trust Corp58,347$259.0K0.00%−12,985−18.2%Reduced
Group One Trading, L.P.70,649$314.0K0.01%−21,506−23.3%Reduced
Bank of New York Mellon Corp72,833$323.0K0.00%+72,833New
Marshall Wace, LLP74,191$329.0K0.00%−30,235−29.0%Reduced
Investment Management of Virginia LLC75,000$333.0K0.05%+5,000+7.1%Added
M&T Bank Corp82,065$364.0K0.00%00.0%Unchanged
O'Shaughnessy Asset Management, LLC84,083$373.0K0.01%+5,236+6.6%Added
Citadel Advisors LLC89,766$398.0K0.00%+72,663+424.9%Added
Squarepoint Ops LLC101,943$453.0K0.00%−21,979−17.7%Reduced
State Street Corp112,375$499.0K0.00%−20,500−15.4%Reduced
Millennium Management LLC115,717$514.0K0.00%−76,466−39.8%Reduced
Thompson Investment Management, Inc.119,325$530.0K0.08%−45,000−27.4%Reduced
Morgan Stanley200,351$889.0K0.00%+197,637+7,282.1%Added
Essex Investment Management Co LLC218,616$971.0K0.11%+44,128+25.3%Added
Two Sigma Investments, LP245,216$1.09M0.00%+65,886+36.7%Added
Ameriprise Financial Inc252,365$1.12M0.00%+236,635+1,504.4%Added
Two Sigma Advisers, LP269,800$1.20M0.00%+231,700+608.1%Added
Acadian Asset Management LLC299,201$1.33M0.00%+199,196+199.2%Added
JB Capital Partners LP306,200$1.36M0.29%00.0%Unchanged
Parametric Portfolio Associates LLC312,076$1.39M0.00%−858−0.3%Reduced
Bridgeway Capital Management, LLC312,600$1.39M0.03%−78,000−20.0%Reduced
Marathon Capital Management321,000$1.43M0.33%00.0%Unchanged
Dimensional Fund Advisors LP337,473$1.50M0.00%+64,123+23.5%Added
Verdad Advisers, LP365,000$1.62M1.10%+365,000New
Geode Capital Management, LLC416,140$1.85M0.00%−2,129−0.5%Reduced
EAM Investors, LLC525,214$2.33M0.38%−15,662−2.9%Reduced
Royce & Associates LP628,464$2.79M0.02%+628,464New
BlackRock Inc.659,522$2.93M0.00%−28,507−4.1%Reduced
Renaissance Technologies LLC755,350$3.35M0.00%+253,500+50.5%Added
Vanguard Group Inc1,437,382$6.38M0.00%−83,605−5.5%Reduced
RK Capital Management, LLC1,599,900$7.10M1.29%+78,600+5.2%Added
Granahan Investment Management Inc1,828,960$8.12M0.17%−146,260−7.4%Reduced
Westerly Capital Management, LLC2,160,000$9.59M6.30%+2,160,000New
ArrowMark Colorado Holdings LLC3,080,506$13.7M0.11%−219,762−6.7%Reduced
Cooper Creek Partners Management LLC4,089,779$18.2M2.13%+27,774+0.7%Added
M&G Investment Management Ltd0$00.00%−128,313−100.0%Sold out
Pitcairn Co0$00.00%−249−100.0%Sold out
MYDA Advisors LLC0$00.00%−30,000−100.0%Sold out
Pekin Hardy Strauss, Inc.0$00.00%−25,000−100.0%Sold out
XTX Topco Ltd0$00.00%−13,910−100.0%Sold out
Barclays PLC0$00.00%−10,466−100.0%Sold out
Qube Research & Technologies Ltd0$00.00%−10,483−100.0%Sold out
Tower Research Capital LLC (TRC)0$00.00%−5,876−100.0%Sold out
Counterpoint Mutual Funds LLC0$00.00%−5,625−100.0%Sold out
Harbour Investments, Inc.0$00.00%−441−100.0%Sold out