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NASDAQ: HDSN
Hudson Technologies Inc Stock Ownership - Who owns Hudson Technologies?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Hudson Technologies Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Hartree Partners LP10% Owner2026-07-2952,104$5.99
$312.10kBuy
Hartree Partners LP10% Owner2026-07-2147,708$5.99
$285.72kBuy
Hartree Partners LP10% Owner2026-07-2017,842$5.99
$106.86kBuy
Hartree Partners LP10% Owner2026-07-07600$5.99
$3.59kBuy
Hartree Partners LP10% Owner2026-07-064,634$5.99
$27.76kBuy
Hartree Partners LP10% Owner2026-07-02271,302$5.97
$1.62MBuy
Hartree Partners LP10% Owner2026-07-01288,111$5.88
$1.69MBuy
Hartree Partners LP10% Owner2026-06-30204,789$5.68
$1.16MBuy
Brian J. BertauxChief Financial Officer2026-05-192,000$4.87
$9.74kBuy
Richard ParrilloDirector2026-05-143,600$4.96
$17.86kBuy

1 of 4

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Net Insider Buy/Sell (L12M) Ownership

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HDSN Shareholders

What type of owners hold Hudson Technologies Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Stephen P. Mandracchia48.96%20,597,199$119.46MInsider
Hartree Partners LP12.11%5,094,190$29.55MInsider
Kevin J. Zugibe10.66%4,484,549$26.01MInsider
Of Kevin J. Zugibe Estate9.99%4,203,536$24.38MInsider
Hartree Partners LP9.03%3,800,000$22.04MInstitution
Westerly Capital Management LLC7.55%3,175,000$18.42MInstitution
Blackrock Inc6.80%2,862,539$16.60MInstitution
Dimensional Fund Advisors LP5.11%2,148,311$12.46MInstitution
Vanguard Capital Management LLC3.95%1,660,146$9.63MInstitution
Renaissance Technologies LLC3.58%1,504,250$8.72MInstitution

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HDSN vs Specialty Chemical Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
HDSN46.95%53.05%Net SellingNet Buying
FF8.56%91.44%Net BuyingNet Buying
CMT70.63%27.43%Net SellingNet Selling
GEVO35.97%12.66%Net SellingNet Selling
ALTO41.57%21.53%Net SellingNet Buying
View Top Specialty Chemical Stocks

Hudson Technologies Stock Ownership FAQ

Who owns Hudson Technologies?

Hudson Technologies (NASDAQ: HDSN) is owned by 78.39% institutional shareholders, 88.59% Hudson Technologies insiders, and 0.00% retail investors. Stephen P. Mandracchia is the largest individual Hudson Technologies shareholder, owning 20.60M shares representing 48.96% of the company. Stephen P. Mandracchia's Hudson Technologies shares are currently valued at $124.41M.

If you're new to stock investing, here's how to buy Hudson Technologies stock.
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