Hudson Technologies, Inc.
US ˙ NasdaqCM ˙ US4441441098

SecurityHDSN / Hudson Technologies, Inc.
InstitutionQube Research & Technologies Ltd
Latest Disclosed Ownership370,876 shares
Latest Disclosed Value $ 2,180,751
Qube Research & Technologies Ltd reports 126.55% increase in ownership of HDSN / Hudson Technologies, Inc.

On May 15, 2026 - Qube Research & Technologies Ltd filed a 13F-HR form disclosing ownership of 370,876 shares of Hudson Technologies, Inc. (US:HDSN) valued at $2,180,751 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 163,703 shares of Hudson Technologies, Inc.. This represents a change in shares of 126.55% during the quarter. The current value of the position is $1,954,517 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F HUDSON TECHNOLOGIES COM 444144109 370,876 207,173 126.55 2,181 94.47 0.0024
2026-02-17 2025-12-31 13F HUDSON TECHNOLOGIES COM 444144109 163,703 75,007 84.57 1,121 27.39 0.0011
2025-11-14 2025-09-30 13F HUDSON TECHNOLOGIES COM 444144109 88,696 88,696 881 0.0009
2025-08-14 2025-06-30 13F HUDSON TECHNOLOGIES COM 444144109 0 -134,461 -100.00 0 -100.00
2025-05-15 2025-03-31 13F HUDSON TECHNOLOGIES COM 444144109 134,461 -230,520 -63.16 830 -59.28 0.0010
2025-02-14 2024-12-31 13F HUDSON TECHNOLOGIES COM 444144109 364,981 180,124 97.44 2,037 32.12 0.0027
2024-11-14 2024-09-30 13F HUDSON TECHNOLOGIES COM 444144109 184,857 49,569 36.64 1,542 29.60 0.0023
2024-08-14 2024-06-30 13F HUDSON TECHNOLOGIES COM 444144109 135,288 41,099 43.63 1,189 14.66 0.0019
2024-05-14 2024-03-31 13F HUDSON TECHNOLOGIES COM 444144109 94,189 664 0.71 1,037 -17.76 0.0016
2024-02-13 2023-12-31 13F HUDSON TECHNOLOGIES COM 444144109 93,525 13,007 16.15 1,262 17.85 0.0025
2023-11-13 2023-09-30 13F HUDSON TECHNOLOGIES COM 444144109 80,518 -125,489 -60.91 1,071 -45.99 0.0028
2023-08-14 2023-06-30 13F HUDSON TECHNOLOGIES COM 444144109 206,007 -32,564 -13.65 1,982 -4.85 0.0072
2023-05-15 2023-03-31 13F HUDSON TECHNOLOGIES COM 444144109 238,571 -40,041 -14.37 2,083 -26.14 0.0090
2023-02-14 2022-12-31 13F HUDSON TECHNOLOGIES COM 444144109 278,612 -22,849 -7.58 2,820 27.21 0.0151
2022-11-14 2022-09-30 13F HUDSON TECHNOLOGIES COM 444144109 301,461 149,341 98.17 2,216 94.05 0.0132
2022-08-15 2022-06-30 13F HUDSON TECHNOLOGIES COM 444144109 152,120 141,451 1,325.81 1,142 1,630.30 0.0084
2022-05-09 2022-03-31 13F HUDSON TECHNOLOGIES COM 444144109 10,669 10,669 66 0.0006
2022-02-10 2021-12-31 13F/A-1 HUDSON TECHNOLOGIES COM 444144109 0 -10,483 -100.00 0 -100.00
2022-02-01 2021-12-31 13F HUDSON TECHNOLOGIES COM 444144109 0 -10,483 0
2021-11-12 2021-09-30 13F HUDSON TECHNOLOGIES COM 444144109 10,483 10,483 37 0.0005
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.