David A. Siegel Hudson Technologies Inc Transaction History

Two Sigma Advisers, LP

$47 Billion
Q3 2025

A detailed history of David A. Siegel (Two Sigma Advisers, LP) transactions in Hudson Technologies Inc stock. As of the latest transaction made, Two Sigma Advisers, LP holds 227,700 shares of HDSN stock, worth $1.54 Million. This represents 0.0% of its overall portfolio holdings.

Number of Shares

227,700

Previous 394,100 42.22%

Holding current value

$1.54 Million

Previous $3.2 Million 29.34%

% of portfolio

0.0%

Previous 0.01%

30 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 14, 2025	SELL	$8.02 - $10.44 $1.33 Million - $1.74 Million	-166,400 Reduced 42.22%	227,700 $2.26 Million
Q2 2025 Aug 14, 2025	SELL	$5.25 - $8.12 $704,025 - $1.09 Million	-134,100 Reduced 25.39%	394,100 $3.2 Million
Q1 2025 May 15, 2025	BUY	$5.47 - $6.34 $1.61 Million - $1.86 Million	293,800 Added 125.34%	528,200 $3.26 Million
Q4 2024 Feb 14, 2025	BUY	$5.25 - $8.29 $733,950 - $1.16 Million	139,800 Added 147.78%	234,400 $1.31 Million
Q3 2024 Nov 14, 2024	SELL	$7.47 - $9.14 $419,067 - $512,754	-56,100 Reduced 37.23%	94,600 $788,000

Q2 2024 Aug 14, 2024	SELL	$8.66 - $11.33 $262,398 - $343,299	-30,300 Reduced 16.74%	150,700 $1.32 Million
Q1 2024 May 15, 2024	SELL	$11.01 - $14.96 $307,179 - $417,384	-27,900 Reduced 13.36%	181,000 $1.99 Million
Q4 2023 Feb 14, 2024	BUY	$11.84 - $13.98 $980,352 - $1.16 Million	82,800 Added 65.66%	208,900 $2.82 Million
Q3 2023 Nov 14, 2023	BUY	$8.63 - $13.57 $375,405 - $590,295	43,500 Added 52.66%	126,100 $1.68 Million
Q2 2023 Aug 14, 2023	SELL	$7.55 - $9.77 $1.45 Million - $1.87 Million	-191,500 Reduced 69.87%	82,600 $794,000
Q1 2023 May 15, 2023	SELL	$7.77 - $11.31 $1.16 Million - $1.69 Million	-149,500 Reduced 35.29%	274,100 $2.39 Million
Q4 2022 Feb 14, 2023	BUY	$7.41 - $11.9 $450,528 - $723,520	60,800 Added 16.76%	423,600 $4.29 Million
Q3 2022 Nov 14, 2022	SELL	$6.62 - $10.75 $317,098 - $514,925	-47,900 Reduced 11.66%	362,800 $2.67 Million
Q2 2022 Aug 15, 2022	BUY	$5.95 - $10.66 $739,585 - $1.33 Million	124,300 Added 43.4%	410,700 $3.08 Million
Q1 2022 May 16, 2022	BUY	$3.37 - $6.3 $55,942 - $104,580	16,600 Added 6.15%	286,400 $1.78 Million
Q4 2021 Feb 14, 2022	BUY	$3.28 - $4.76 $759,976 - $1.1 Million	231,700 Added 608.14%	269,800 $1.2 Million
Q3 2021 Nov 15, 2021	BUY	$2.83 - $3.85 $107,823 - $146,685	38,100 New	38,100 $134,000
Q4 2020 Feb 16, 2021	SELL	$1.02 - $1.66 $14,790 - $24,070	-14,500 Closed	0 $0
Q3 2020 Nov 16, 2020	SELL	$0.93 - $1.45 $6,417 - $10,005	-6,900 Reduced 32.24%	14,500 $17,000
Q2 2020 Aug 14, 2020	SELL	$0.64 - $1.07 $5,056 - $8,453	-7,900 Reduced 26.96%	21,400 $22,000
Q1 2020 May 15, 2020	SELL	$0.58 - $1.0 $2,552 - $4,400	-4,400 Reduced 13.06%	29,300 $20,000
Q4 2019 Feb 14, 2020	SELL	$0.51 - $0.99 $1,275 - $2,475	-2,500 Reduced 6.91%	33,700 $33,000
Q3 2019 Nov 14, 2019	SELL	$0.31 - $0.9 $2,046 - $5,940	-6,600 Reduced 15.42%	36,200 $26,000
Q2 2019 Aug 14, 2019	BUY	$0.81 - $2.16 $243 - $648	300 Added 0.71%	42,800 $37,000
Q1 2019 May 15, 2019	SELL	$1.09 - $2.11 $2,616 - $5,064	-2,400 Reduced 5.35%	42,500 $82,000
Q4 2018 Feb 14, 2019	SELL	$0.72 - $1.84 $3,024 - $7,728	-4,200 Reduced 8.55%	44,900 $40,000
Q3 2018 Nov 14, 2018	SELL	$1.28 - $2.37 $3,712 - $6,873	-2,900 Reduced 5.58%	49,100 $63,000
Q2 2018 Aug 14, 2018	BUY	$1.96 - $4.89 $68,992 - $172,128	35,200 Added 209.52%	52,000 $105,000
Q1 2018 May 15, 2018	SELL	$4.43 - $6.64 $24,808 - $37,184	-5,600 Reduced 25.0%	16,800 $83,000
Q4 2017 Feb 14, 2018	BUY	$5.49 - $7.83 $122,976 - $175,392	22,400	22,400 $136,000

Others Institutions Holding HDSN

# of Institutions

190

Shares Held

31.5M

Call Options Held

122K

Put Options Held

18.6K

View Full List

About HUDSON TECHNOLOGIES INC

Ticker HDSN
Exchange NASDAQ
Sector Basic Materials
Industry Specialty Chemicals
Shares Outstandng 45,020,100
Market Cap $305M
Description
Hudson Technologies, Inc. a refrigerant services company, provides solutions to recurring problems within the refrigeration industry primarily in the United States. The company's products and services include refrigerant and industrial gas sales; refrigerant management services consisting primarily of reclamation of refrigerants, re-usable cylin...

More about HDSN

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