InsiderClue
Stocks · Industrials · Wholesale-Machinery, Equipment & Supplies

HUDSON TECHNOLOGIES INC

HDSN Clue Score51
United States Fiscal year ends December CIK 0000925528 Results filed 28 Oct 2026
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What the insiders did Net selling

Individual transactions

182
Insider
Date
Role
Action
Shares
Price
Amount
Hartree Partners, LP
2 Nov 2026
10% owner
Buy
41,290
$4.25
$175.48K
Hartree Partners, LP
30 Oct 2026
10% owner
Buy
58,710
$4.25
$249.51K
Hartree Partners, LP
29 Oct 2026
10% owner
Buy
200,000
$4.44
$888.60K
Hartree Partners, LP
24 Sep 2026
10% owner
Buy
118,549
$5.10
$604.45K
Hartree Partners, LP
23 Sep 2026
10% owner
Buy
11,013
$5.10
$56.17K
Hartree Partners, LP
21 Sep 2026
10% owner
Buy
2,502
$5.10
$12.76K
Hartree Partners, LP
16 Sep 2026
10% owner
Buy
11,136
$5.10
$56.79K
Hartree Partners, LP
2 Sep 2026
10% owner
Buy
5,317
$5.10
$27.12K
Hartree Partners, LP
25 Aug 2026
10% owner
Buy
91,166
$5.50
$501.09K
Hartree Partners, LP
24 Aug 2026
10% owner
Buy
9,446
$5.50
$51.95K
Hartree Partners, LP
12 Aug 2026
10% owner
Buy
5,198
$5.50
$28.59K
Hartree Partners, LP
29 Jul 2026
10% owner
Buy
52,104
$5.99
$312.10K
Hartree Partners, LP
21 Jul 2026
10% owner
Buy
47,708
$5.99
$285.74K
Hartree Partners, LP
20 Jul 2026
10% owner
Buy
17,842
$5.99
$106.86K
Hartree Partners, LP
7 Jul 2026
10% owner
Buy
600
$5.99
$3.59K
Hartree Partners, LP
6 Jul 2026
10% owner
Buy
4,634
$5.99
$27.76K
Hartree Partners, LP
2 Jul 2026
10% owner
Buy
271,302
$5.97
$1.62M
Hartree Partners, LP
1 Jul 2026
10% owner
Buy
288,111
$5.88
$1.70M
Hartree Partners, LP
30 Jun 2026
10% owner
Buy
204,789
$5.68
$1.16M
Brian J. Bertaux
19 May 2026
Chief Financial Officer
Buy
2,000
$4.87
$9.74K
Jeffrey R Feeler
14 May 2026
Director
Buy
5,100
$4.92
$25.09K
Nicole E Bulgarino
14 May 2026
Director
Buy
550
$4.85
$2.66K
Richard Parrillo
14 May 2026
Director
Buy
1,400
$4.97
$6.96K
Richard Parrillo
14 May 2026
Director
Buy
3,600
$4.96
$17.86K
Loan Nguyen Mansy
14 May 2026
Director
Buy
1,400
$4.97
$6.96K
Loan Nguyen Mansy
14 May 2026
Director
Buy
3,600
$4.96
$17.86K
Kenneth Gaglione
13 May 2026
President and CEO
Buy indirect
5,000
$4.90
$24.48K
Alan Sheriff
13 May 2026
Director
Buy
5,200
$4.88
$25.35K
Eric A Prouty
13 May 2026
Director
Buy
5,000
$4.84
$24.20K
Kathleen Houghton
8 Jan 2026
Sr. VP-Sales and Marketing
Exercised, kept
50,888
$3.81
$193.88K
Kathleen Houghton
8 Jan 2026
Sr. VP-Sales and Marketing
Exercised, kept
47,619
$1.60
$76.19K
Kathleen Houghton
8 Jan 2026
Sr. VP-Sales and Marketing
Exercised, kept
120,000
$0.75
$90.00K
Brian F Coleman
5 Dec 2025
Director
Sell
484,616
$7.40
$3.59M
Vincent P Abbatecola
17 Nov 2025
Director
Buy
3,500
$6.79
$23.75K
Vincent P Abbatecola
24 Sep 2025
Director
Exercised, kept
4,744
$7.35
$34.87K
Eric A Prouty
31 Jul 2025
Director
Exercised, kept
4,744
$7.35
$34.87K
Vincent P Abbatecola
7 Nov 2024
Director
Buy
2,500
$5.98
$14.95K
Vincent P Abbatecola
14 Jun 2024
Director
Sell
10,000
$9.20
$92.00K
Vincent P Abbatecola
12 Jun 2024
Director
Exercised, kept
8,276
$3.40
$28.14K
Richard Parrillo
14 Dec 2023
Director
Sell
5,103
$13.25
$67.61K
Richard Parrillo
14 Dec 2023
Director
Sell
51
$13.26
$676.26
Richard Parrillo
14 Dec 2023
Director
Sell
51
$13.27
$676.77
Richard Parrillo
14 Dec 2023
Director
Sell
12,686
$13.30
$168.72K
Richard Parrillo
14 Dec 2023
Director
Sell
55
$13.32
$732.60
Richard Parrillo
14 Dec 2023
Director
Sell
2,259
$13.31
$30.07K
Richard Parrillo
13 Dec 2023
Director
Sell
1,000
$12.91
$12.91K
Richard Parrillo
13 Dec 2023
Director
Sell
134
$12.92
$1.73K
Richard Parrillo
13 Dec 2023
Director
Sell
300
$12.96
$3.89K
Richard Parrillo
13 Dec 2023
Director
Sell
9,865
$12.91
$127.36K
Richard Parrillo
13 Dec 2023
Director
Sell
11,100
$12.95
$143.75K
Richard Parrillo
12 Dec 2023
Director
Sell
10,000
$12.85
$128.50K
Richard Parrillo
12 Dec 2023
Director
Sell
10,000
$12.95
$129.50K
Richard Parrillo
12 Dec 2023
Director
Sell
10,000
$12.75
$127.50K
Vincent P Abbatecola
25 Oct 2023
Director
Exercised, kept
21,118
$1.88
$39.70K
Kenneth Gaglione
12 Sep 2023
VP-Operations
Exercised, kept
33,379
$10.09
$336.79K
Kenneth Gaglione
12 Sep 2023
VP-Operations
Exercised, kept
23,902
$3.81
$91.07K
Kenneth Gaglione
12 Sep 2023
VP-Operations
Exercised, kept
23,810
$1.60
$38.10K
Kenneth Gaglione
12 Sep 2023
VP-Operations
Exercised, kept
90,135
$1.23
$110.87K
Richard Parrillo
19 Jul 2023
Director
Exercised, kept
21,739
$0.98
$21.30K
Vincent P Abbatecola
19 Jul 2023
Director
Exercised, kept
21,739
$0.98
$21.30K
Eric A Prouty
14 Jun 2023
Director
Sell
20,000
$9.56
$191.20K
Eric A Prouty
2 Jun 2023
Director
Exercised, kept
43,478
$0.98
$42.61K
Vincent P Abbatecola
14 Mar 2023
Director
Buy
1,000
$8.27
$8.27K
Kenneth Gaglione
13 Dec 2022
VP-Operations
Exercised, kept
23,902
$3.81
$91.07K
Kenneth Gaglione
12 Dec 2022
VP-Operations
Sell
19,000
$11.53
$219.07K
Nat Krishnamurti
9 Nov 2022
CFO
Sell
46,194
$10.13
$467.95K
Nat Krishnamurti
8 Nov 2022
CFO
Sold after exercise
45,000
$10.66
$479.70K
Otto C Morch
5 Jul 2022
Director
Exercised, kept
40,000
$0.62
$24.80K
Otto C Morch
5 Jul 2022
Director
Exercised, kept
10,281
$3.27
$33.62K
Vincent P Abbatecola
15 Jun 2022
Director
Sell
20,000
$9.75
$194.92K
Vincent P Abbatecola
3 Jun 2022
Director
Sold after exercise
20,000
$9.79
$195.82K
Stephen P Mandracchia
31 May 2022
Director
Sell indirect
55,785
$9.70
$541.11K
Stephen P Mandracchia
31 May 2022
Director
Sell
27,892
$9.70
$270.55K
Stephen P Mandracchia
27 May 2022
Director
Sell indirect
44,215
$9.73
$430.14K
Stephen P Mandracchia
27 May 2022
Director
Sell
22,108
$9.73
$215.07K
Eric A Prouty
9 May 2022
Director
Sell
75,000
$9.00
$675.00K
Eric A Prouty
6 May 2022
Director
Exercised, kept
80,000
$0.62
$49.60K
Richard Parrillo
31 Mar 2022
Director
Exercised, kept
1,300
$1.70
$2.21K
Richard Parrillo
31 Mar 2022
Director
Exercised, kept
80,000
$0.62
$49.60K
Stephen P Mandracchia
11 Mar 2022
Director
Sell indirect
100,000
$5.78
$578.00K
Stephen P Mandracchia
11 Mar 2022
Director
Sell
100,000
$5.75
$575.00K
Stephen P Mandracchia
15 Feb 2022
Director
Exercised, kept
25,000
$1.70
$42.50K
Kathleen Houghton
3 Feb 2022
VP - Sales and Marketing
Exercised, kept
20,000
$1.25
$25.00K
Vincent P Abbatecola
16 Dec 2021
Director
Sell
10,000
$3.76
$37.59K
Vincent P Abbatecola
15 Dec 2021
Director
Sell
23,000
$3.84
$88.37K
Vincent P Abbatecola
10 Dec 2021
Director
Sell
35,320
$4.04
$142.80K
Kenneth Gaglione
9 Dec 2021
VP-Operations
Exercised, kept
45,000
$1.23
$55.35K
Vincent P Abbatecola
26 Nov 2021
Director
Exercised, kept
42,553
$1.09
$46.38K
Vincent P Abbatecola
26 Nov 2021
Director
Exercised, kept
39,136
$1.09
$42.66K
Stephen P Mandracchia
19 Nov 2021
Director
Sell indirect
7,900
$4.67
$36.89K
Stephen P Mandracchia
19 Nov 2021
Director
Sell
7,900
$4.70
$37.15K
Stephen P Mandracchia
18 Nov 2021
Director
Sell indirect
92,100
$4.71
$433.79K
Stephen P Mandracchia
18 Nov 2021
Director
Sell
92,100
$4.71
$433.79K
Nat Krishnamurti
17 Nov 2021
CFO
Sell
200,000
$4.76
$952.00K
Brian F Coleman
15 Nov 2021
President, CEO
Exercised, kept
507,100
$1.09
$552.74K
Brian F Coleman
15 Nov 2021
President, CEO
Exercised, kept
403,300
$1.09
$439.60K
Nat Krishnamurti
15 Nov 2021
CFO
Exercised, kept
247,100
$1.09
$269.34K
Nat Krishnamurti
15 Nov 2021
CFO
Exercised, kept
195,700
$1.09
$213.31K
Dominic J Monetta
13 Sep 2021
Director
Exercised, kept
25,000
$0.75
$18.75K
Dominic J Monetta
13 Sep 2021
Director
Exercised, kept
35,000
$0.75
$26.25K
Dominic J Monetta
13 Sep 2021
Director
Exercised, kept
42,553
$1.09
$46.38K
Dominic J Monetta
13 Sep 2021
Director
Exercised, kept
31,610
$1.09
$34.45K
Dominic J Monetta
13 Sep 2021
Director
Exercised, kept
21,118
$1.88
$39.70K
Eric A Prouty
30 Aug 2021
Director
Exercised, kept
42,553
$1.09
$46.38K
Dominic J Monetta
24 Aug 2021
Director
Exercised, kept
25,000
$1.31
$32.75K
Brian F Coleman
17 Aug 2021
President, CEO
Buy
5,000
$2.90
$14.50K
Brian F Coleman
17 Aug 2021
President, CEO
Buy
15,000
$2.89
$43.35K
Brian F Coleman
17 Aug 2021
President, CEO
Buy
5,000
$2.88
$14.40K
Otto C Morch
9 Aug 2021
Director
Sell
57,211
$3.20
$182.90K
Otto C Morch
29 Jul 2021
Director
Exercised, kept
83,195
$1.09
$90.68K
Kathleen Houghton
9 Jun 2021
VP - Sales and Marketing
Sell
9,100
$2.89
$26.30K
Kathleen Houghton
9 Jun 2021
VP - Sales and Marketing
Sell
200
$2.90
$579.00
Kathleen Houghton
9 Jun 2021
VP - Sales and Marketing
Sell
700
$2.90
$2.03K
Kathleen Houghton
9 Jun 2021
VP - Sales and Marketing
Sell
2,015
$2.92
$5.88K
Kathleen Houghton
9 Jun 2021
VP - Sales and Marketing
Sell
100
$2.93
$293.00
Kathleen Houghton
9 Jun 2021
VP - Sales and Marketing
Sell
1,000
$2.93
$2.93K
Kathleen Houghton
9 Jun 2021
VP - Sales and Marketing
Sell
200
$2.93
$586.20
Kathleen Houghton
3 Jun 2021
VP - Sales and Marketing
Exercised, kept
125,000
$1.09
$136.25K
Kathleen Houghton
2 Jun 2021
VP - Sales and Marketing
Sell
1,300
$3.00
$3.89K
Kathleen Houghton
2 Jun 2021
VP - Sales and Marketing
Sell
2,282
$3.00
$6.85K
Otto C Morch
2 Jun 2021
Director
Sell
13,262
$2.95
$39.18K
Eric A Prouty
2 Jun 2021
Director
Exercised, kept
18,092
$1.76
$31.84K
Vincent P Abbatecola
1 Jun 2021
Director
Sell
16,298
$2.95
$48.08K
Kathleen Houghton
28 May 2021
VP - Sales and Marketing
Exercised, kept
30,000
$2.31
$69.30K
Vincent P Abbatecola
27 May 2021
Director
Exercised, kept
25,000
$1.31
$32.75K
Vincent P Abbatecola
27 May 2021
Director
Exercised, kept
8,224
$1.76
$14.47K
Otto C Morch
27 May 2021
Director
Exercised, kept
25,000
$1.31
$32.75K
Richard Parrillo
27 May 2021
Director
Exercised, kept
42,553
$1.09
$46.38K
Richard Parrillo
27 May 2021
Director
Exercised, kept
39,136
$1.09
$42.66K
Richard Parrillo
27 May 2021
Director
Exercised, kept
18,092
$1.76
$31.84K
Stephen P Mandracchia
26 May 2021
Director
Sold after exercise indirect
23,927
$2.48
$59.34K
Stephen P Mandracchia
26 May 2021
Director
Sold after exercise
23,926
$2.48
$59.34K
Stephen P Mandracchia
25 May 2021
Director
Sell indirect
76,073
$2.37
$180.29K
Stephen P Mandracchia
25 May 2021
Director
Sell
76,074
$2.37
$180.30K
Stephen P Mandracchia
12 Mar 2021
Director
Sell indirect
600
$1.58
$945.00
Stephen P Mandracchia
12 Mar 2021
Director
Sell indirect
8,100
$1.57
$12.73K
Stephen P Mandracchia
12 Mar 2021
Director
Sell indirect
91,300
$1.57
$143.34K
Vincent P Abbatecola
15 Dec 2020
Director
Sold after exercise
75,000
$1.21
$91.10K
Estate of Kevin J. Zugibe
30 Nov 2020
10% owner
Exercised, kept
375,000
$0.75
$281.25K
Estate of Kevin J. Zugibe
30 Nov 2020
10% owner
Exercised, kept
600,000
$0.75
$450.00K
Estate of Kevin J. Zugibe
30 Nov 2020
10% owner
Exercised, kept
423,000
$1.09
$461.07K
Estate of Kevin J. Zugibe
30 Nov 2020
10% owner
Exercised, kept
484,562
$1.09
$528.17K
Dominic J Monetta
16 Nov 2020
Director
Sell
15,000
$1.15
$17.28K
Dominic J Monetta
10 Aug 2020
Director
Sell
15,000
$1.22
$18.30K
Dominic J Monetta
22 May 2019
Director
Sell
10,000
$2.06
$20.59K
Dominic J Monetta
14 May 2019
Director
Sell
5,801
$1.96
$11.37K
Dominic J Monetta
9 May 2019
Director
Sell
5,000
$1.90
$9.50K
Eric A Prouty
8 May 2019
Director
Buy
5,000
$1.89
$9.45K
Eric A Prouty
12 Dec 2018
Director
Buy
5,000
$1.64
$8.20K
Eric A Prouty
15 Aug 2018
Director
Buy
5,000
$1.81
$9.05K
Richard Parrillo
30 May 2018
Director
Buy
2,000
$2.33
$4.66K
Richard Parrillo
30 May 2018
Director
Buy
5,000
$2.31
$11.55K
Richard Parrillo
30 May 2018
Director
Buy
4,000
$2.28
$9.12K
Richard Parrillo
30 May 2018
Director
Buy
9,000
$2.27
$20.43K
Richard Parrillo
30 May 2018
Director
Buy
5,000
$2.22
$11.10K
Eric A Prouty
24 May 2018
Director
Buy
5,000
$2.33
$11.65K
Kevin J Zugibe
23 May 2018
Chairman, CEO
Buy
2,600
$2.13
$5.54K
Kevin J Zugibe
23 May 2018
Chairman, CEO
Buy
1,100
$2.12
$2.33K
Kevin J Zugibe
23 May 2018
Chairman, CEO
Buy
16,300
$2.11
$34.39K
Otto C Morch
18 May 2018
Director
Sell
7,224
$2.52
$18.20K
Otto C Morch
18 May 2018
Director
Sell
5,000
$2.51
$12.55K
Kevin J Zugibe
15 Mar 2018
Chairman, CEO
Buy
5,000
$5.51
$27.55K
Brian F Coleman
15 Mar 2018
President, COO
Buy
2,000
$5.51
$11.02K
Vincent P Abbatecola
15 Mar 2018
Director
Buy indirect
1,000
$5.50
$5.50K
Stephen P Mandracchia
15 Mar 2018
VP Legal & Regulatory
Buy indirect
2,000
$5.51
$11.02K
Vincent P Abbatecola
17 Dec 2017
Director
Buy
2,000
$5.76
$11.52K
Richard Parrillo
15 Dec 2017
Director
Buy
5,000
$5.78
$28.90K
Richard Parrillo
15 Dec 2017
Director
Buy
5,000
$5.81
$29.05K
Kevin J Zugibe
17 Nov 2017
Chairman, CEO
Exercised, kept
195,000
$0.85
$165.75K
Brian F Coleman
17 Nov 2017
President, COO
Exercised, kept
100,300
$0.85
$85.26K
Stephen P Mandracchia
17 Nov 2017
VP Legal & Regulatory
Exercised, kept indirect
125,000
$0.85
$106.25K
Vincent P Abbatecola
13 Nov 2017
Director
Exercised, kept
40,000
$0.85
$34.00K
Otto C Morch
21 Aug 2017
Director
Exercised, kept
16,600
$8.41
$139.61K
Vincent P Abbatecola
21 Aug 2017
Director
Exercised, kept
26,600
$3.23
$85.92K
Eric A Prouty
21 Aug 2017
Director
Exercised, kept
26,600
$3.23
$85.92K
Richard Parrillo
21 Aug 2017
Director
Exercised, kept
26,600
$3.23
$85.92K
Kevin J Zugibe
18 Aug 2017
Chairman, CEO
Exercised, kept
28,145
$3.55
$99.91K
Kevin J Zugibe
18 Aug 2017
Chairman, CEO
Exercised, kept
251,855
$3.23
$813.49K
Stephen P Mandracchia
18 Aug 2017
VP Legal & Regulatory
Exercised, kept indirect
28,145
$3.55
$99.91K
Stephen P Mandracchia
18 Aug 2017
VP Legal & Regulatory
Exercised, kept indirect
76,855
$3.23
$248.24K
Dominic J Monetta
18 Aug 2017
Director
Exercised, kept
26,600
$3.23
$85.92K
Otto C Morch
14 Nov 2016
Director
Exercised, kept
10,000
$3.23
$32.30K

What was left out

Form 4 filings counted 219
Amendments (4/A) skipped 4
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 5
Sales at will 59
Transactions with no price 0
Shares from compensation/vesting 9,906,982
Sales filed before the plan box existed 42
History held since 25 Oct 2006