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United States Machinery, Equipment & Components

Hudson Technologies Inc (HDSN)

Track

Over the last 90 days, Hudson Technologies Inc. has seen net insider buying totaling $161,150, with 8 insiders purchasing shares. Notably, the Chief Financial Officer and President and CEO were among those making purchases. This activity occurred following a recent earnings report that missed expectations by 80%. The stock has experienced a 9.2% decline over the past 90 days.
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Ticker: HDSN Exchange: NAS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Bertaux Brian J.
Chief Financial Officer
1 purchase — total 9,740 USD
Buy 19 May 2026
Value US$1,488,569.16 | Price 158.21 | Shares 83,343
Buy 14 May 2026
Value US$3,953,753.23 | Price 237.33 | Shares 14,520
Buy 14 May 2026
Value US$153,812.42 | Price 278.56 | Shares 32,498
Buy 14 May 2026
Value US$6,958.00 | Price 4.97 | Shares 1,400
Buy 14 May 2026
Value US$17,856.00 | Price 4.96 | Shares 3,600
Buy 14 May 2026
Value US$2,664.75 | Price 4.85 | Shares 550
Buy 14 May 2026
Value US$25,092.00 | Price 4.92 | Shares 5,100
Buy 13 May 2026
Value US$24,475.00 | Price 4.90 | Shares 5,000
Buy 13 May 2026
Value US$25,350.00 | Price 4.88 | Shares 5,200
Buy 13 May 2026
Value US$24,200.00 | Price 4.84 | Shares 5,000
Sale 5 Dec 2025
Value US$3,588,096.86 | Price 7.40 | Shares 484,616
Buy 17 Nov 2025
Value US$23,747.50 | Price 6.79 | Shares 3,500
Buy 7 Nov 2024
Value US$14,947.50 | Price 5.98 | Shares 2,500
Sale 14 Jun 2024
Value US$92,000.00 | Price 9.20 | Shares 10,000
Sale 14 Dec 2023
Value US$67,614.75 | Price 13.25 | Shares 5,103
Sale 14 Dec 2023
Value US$676.26 | Price 13.26 | Shares 51
Sale 14 Dec 2023
Value US$676.77 | Price 13.27 | Shares 51
Sale 14 Dec 2023
Value US$168,723.80 | Price 13.30 | Shares 12,686
Sale 14 Dec 2023
Value US$732.60 | Price 13.32 | Shares 55
Sale 14 Dec 2023
Value US$30,067.29 | Price 13.31 | Shares 2,259
Sale 13 Dec 2023
Value US$12,910.00 | Price 12.91 | Shares 1,000
Sale 13 Dec 2023
Value US$1,731.28 | Price 12.92 | Shares 134
Sale 13 Dec 2023
Value US$3,888.00 | Price 12.96 | Shares 300
Sale 13 Dec 2023
Value US$127,357.15 | Price 12.91 | Shares 9,865
Sale 13 Dec 2023
Value US$143,745.00 | Price 12.95 | Shares 11,100
Sale 12 Dec 2023
Value US$128,500.00 | Price 12.85 | Shares 10,000
Sale 12 Dec 2023
Value US$129,500.00 | Price 12.95 | Shares 10,000
Sale 12 Dec 2023
Value US$127,500.00 | Price 12.75 | Shares 10,000
Sale 14 Jun 2023
Value US$191,200.00 | Price 9.56 | Shares 20,000
Proposed sale 14 Jun 2023
Value US$187,000.00 | Price 9.35 | Shares 20,000
Buy 14 Mar 2023
Value US$8,270.00 | Price 8.27 | Shares 1,000
Sale 12 Dec 2022
Value US$219,070.00 | Price 11.53 | Shares 19,000
Sale 9 Nov 2022
Value US$467,945.22 | Price 10.13 | Shares 46,194
Sale 8 Nov 2022
Value US$479,700.00 | Price 10.66 | Shares 45,000
Sale 15 Jun 2022
Value US$194,920.00 | Price 9.75 | Shares 20,000
Sale 3 Jun 2022
Value US$195,816.00 | Price 9.79 | Shares 20,000
Sale 31 May 2022
Value US$541,114.50 | Price 9.70 | Shares 55,785
Sale 31 May 2022
Value US$270,552.40 | Price 9.70 | Shares 27,892
Sale 27 May 2022
Value US$430,136.78 | Price 9.73 | Shares 44,215
Sale 27 May 2022
Value US$215,073.26 | Price 9.73 | Shares 22,108
Sale 9 May 2022
Value US$675,000.00 | Price 9.00 | Shares 75,000
Sale 11 Mar 2022
Value US$578,000.00 | Price 5.78 | Shares 100,000
Sale 11 Mar 2022
Value US$575,000.00 | Price 5.75 | Shares 100,000
Sale 16 Dec 2021
Value US$37,590.00 | Price 3.76 | Shares 10,000
Sale 15 Dec 2021
Value US$88,366.00 | Price 3.84 | Shares 23,000
Sale 10 Dec 2021
Value US$142,798.76 | Price 4.04 | Shares 35,320
Sale 19 Nov 2021
Value US$36,893.00 | Price 4.67 | Shares 7,900
Sale 19 Nov 2021
Value US$37,153.70 | Price 4.70 | Shares 7,900
Sale 18 Nov 2021
Value US$433,791.00 | Price 4.71 | Shares 92,100
Sale 18 Nov 2021
Value US$433,791.00 | Price 4.71 | Shares 92,100
Sale 17 Nov 2021
Value US$952,000.00 | Price 4.76 | Shares 200,000
Sale 9 Jun 2021
Value US$26,299.00 | Price 2.89 | Shares 9,100
Sale 9 Jun 2021
Value US$579.00 | Price 2.90 | Shares 200
Sale 9 Jun 2021
Value US$2,030.00 | Price 2.90 | Shares 700
Sale 9 Jun 2021
Value US$5,883.80 | Price 2.92 | Shares 2,015
Sale 9 Jun 2021
Value US$293.00 | Price 2.93 | Shares 100
Sale 9 Jun 2021
Value US$2,930.10 | Price 2.93 | Shares 1,000
Sale 9 Jun 2021
Value US$586.20 | Price 2.93 | Shares 200
Sale 2 Jun 2021
Value US$39,182.58 | Price 2.95 | Shares 13,262
Sale 2 Jun 2021
Value US$3,893.50 | Price 3.00 | Shares 1,300
Sale 2 Jun 2021
Value US$6,846.00 | Price 3.00 | Shares 2,282
Sale 26 May 2021
Value US$59,338.96 | Price 2.48 | Shares 23,927
Sale 26 May 2021
Value US$59,336.48 | Price 2.48 | Shares 23,926
Sale 25 May 2021
Value US$180,293.01 | Price 2.37 | Shares 76,073
Sale 25 May 2021
Value US$180,295.38 | Price 2.37 | Shares 76,074
Sale 12 Mar 2021
Value US$945.00 | Price 1.58 | Shares 600
Sale 12 Mar 2021
Value US$12,725.10 | Price 1.57 | Shares 8,100
Sale 12 Mar 2021
Value US$143,341.00 | Price 1.57 | Shares 91,300
Sale 15 Dec 2020
Value US$91,102.50 | Price 1.21 | Shares 75,000
Sale 16 Nov 2020
Value US$17,280.00 | Price 1.15 | Shares 15,000
Sale 10 Aug 2020
Value US$18,300.00 | Price 1.22 | Shares 15,000
Sale 22 May 2019
Value US$20,587.00 | Price 2.06 | Shares 10,000
Sale 14 May 2019
Value US$11,369.96 | Price 1.96 | Shares 5,801
Sale 9 May 2019
Value US$9,500.00 | Price 1.90 | Shares 5,000
Buy 8 May 2019
Value US$9,450.00 | Price 1.89 | Shares 5,000
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-05-21 2026-05-19 B Purchase
Bertaux Brian J.

Chief Financial Officer

Officer
83,343 +34.3%
158.21
US$1,488,569 		83,343 +34.3% 158.21 US$1,488,569
2026-05-15 2026-05-14 B Purchase
Mansy Loan Nguyen
Non-Executive Director
14,520 +36.5%
237.33
US$3,953,753 		14,520 +36.5% 237.33 US$3,953,753
2026-05-15 2026-05-14 B Purchase
Mansy Loan Nguyen
Non-Executive Director
32,498 +13.2%
278.56
US$153,812 		32,498 +13.2% 278.56 US$153,812
2026-05-15 2026-05-14 B Purchase
2.9
Parrillo Richard
Non-Executive Director
1,400 +5.8%
4.97
US$6,958 		1,400 +5.8% 4.97 US$6,958
2026-05-15 2026-05-14 B Purchase
2.9
Parrillo Richard
Non-Executive Director
3,600 +17.5%
4.96
US$17,856 		3,600 +17.5% 4.96 US$17,856
2026-05-15 2026-05-14 B Purchase
2.9
Bulgarino Nicole E
Non-Executive Director
550 +5.2%
4.85
US$2,665 		550 +5.2% 4.85 US$2,665
2026-05-15 2026-05-14 B Purchase
Feeler Jeffrey R
Non-Executive Director
5,100 +125.5%
4.92
US$25,092 		5,100 +125.5% 4.92 US$25,092
2026-05-15 2026-05-13 B Purchase
3.3
Gaglione Kenneth

President and CEO

Executive Director
5,000 +inf%
4.90
US$24,475 		5,000 +inf% 4.90 US$24,475
2026-05-15 2026-05-13 B Purchase
Sheriff Alan
Non-Executive Director
5,200 +127.9%
4.88
US$25,350 		5,200 +127.9% 4.88 US$25,350
2026-05-15 2026-05-13 B Purchase
2.8
Prouty Eric A
Non-Executive Director
5,000 +3.4%
4.84
US$24,200 		5,000 +3.4% 4.84 US$24,200
2025-12-09 2025-12-05 S Sale
3.0
COLEMAN BRIAN F
Non-Executive Director
484,616 -20.0%
7.40
US$3,588,097 		484,616 -20.0% 7.40 US$3,588,097
2025-11-18 2025-11-17 B Purchase
3.0
ABBATECOLA VINCENT P
Non-Executive Director
3,500 +2.1%
6.79
US$23,748 		3,500 +2.1% 6.79 US$23,748
2024-11-12 2024-11-07 B Purchase
3.0
ABBATECOLA VINCENT P
Non-Executive Director
2,500 +1.6%
5.98
US$14,948 		2,500 +1.6% 5.98 US$14,948
2024-06-18 2024-06-14 S Sale
3.0
ABBATECOLA VINCENT P
Non-Executive Director
10,000 -5.9%
9.20
US$92,000 		10,000 -5.9% 9.20 US$92,000
2023-12-14 2023-12-14 S Sale
2.9
Parrillo Richard
Non-Executive Director
5,103 -2.8%
13.25
US$67,615 		5,103 -2.8% 13.25 US$67,615
2023-12-14 2023-12-14 S Sale
2.9
Parrillo Richard
Non-Executive Director
51 -0.0%
13.26
US$676 		51 -0.0% 13.26 US$676
2023-12-14 2023-12-14 S Sale
2.9
Parrillo Richard
Non-Executive Director
51 -0.0%
13.27
US$677 		51 -0.0% 13.27 US$677
2023-12-14 2023-12-14 S Sale
2.9
Parrillo Richard
Non-Executive Director
12,686 -6.4%
13.30
US$168,724 		12,686 -6.4% 13.30 US$168,724
2023-12-14 2023-12-14 S Sale
2.9
Parrillo Richard
Non-Executive Director
55 -0.0%
13.32
US$733 		55 -0.0% 13.32 US$733
2023-12-14 2023-12-14 S Sale
2.9
Parrillo Richard
Non-Executive Director
2,259 -1.1%
13.31
US$30,067 		2,259 -1.1% 13.31 US$30,067
2023-12-14 2023-12-13 S Sale
2.9
Parrillo Richard
Non-Executive Director
1,000 -0.5%
12.91
US$12,910 		1,000 -0.5% 12.91 US$12,910
2023-12-14 2023-12-13 S Sale
2.9
Parrillo Richard
Non-Executive Director
134 -0.1%
12.92
US$1,731 		134 -0.1% 12.92 US$1,731
2023-12-14 2023-12-13 S Sale
2.9
Parrillo Richard
Non-Executive Director
300 -0.1%
12.96
US$3,888 		300 -0.1% 12.96 US$3,888
2023-12-14 2023-12-13 S Sale
2.9
Parrillo Richard
Non-Executive Director
9,865 -4.7%
12.91
US$127,357 		9,865 -4.7% 12.91 US$127,357
2023-12-14 2023-12-13 S Sale
2.9
Parrillo Richard
Non-Executive Director
11,100 -5.0%
12.95
US$143,745 		11,100 -5.0% 12.95 US$143,745
2023-12-14 2023-12-12 S Sale
2.9
Parrillo Richard
Non-Executive Director
10,000 -4.3%
12.85
US$128,500 		10,000 -4.3% 12.85 US$128,500
2023-12-14 2023-12-12 S Sale
2.9
Parrillo Richard
Non-Executive Director
10,000 -4.1%
12.95
US$129,500 		10,000 -4.1% 12.95 US$129,500
2023-12-14 2023-12-12 S Sale
2.9
Parrillo Richard
Non-Executive Director
10,000 -4.0%
12.75
US$127,500 		10,000 -4.0% 12.75 US$127,500
2023-06-15 2023-06-14 S Sale
2.8
Prouty Eric A
Non-Executive Director
20,000 -12.3%
9.56
US$191,200 		20,000 -12.3% 9.56 US$191,200
2023-06-13 2023-06-14 PrS Proposed sale
2.8
Prouty Eric A

Director

Non-Executive Director
20,000
9.35
US$187,000 		20,000 9.35 US$187,000
2023-03-15 2023-03-14 B Purchase
3.0
ABBATECOLA VINCENT P
Non-Executive Director
1,000 +0.8%
8.27
US$8,270 		1,000 +0.8% 8.27 US$8,270
2022-12-14 2022-12-12 S Sale
3.3
Gaglione Kenneth

VP-Operations

Officer
19,000 -85.6%
11.53
US$219,070 		19,000 -85.6% 11.53 US$219,070
2022-11-10 2022-11-09 S Sale
2.6
Krishnamurti Nat

CFO

Officer
46,194 -64.7%
10.13
US$467,945 		46,194 -64.7% 10.13 US$467,945
2022-11-10 2022-11-08 S Sale
2.6
Krishnamurti Nat

CFO

Officer
45,000 -38.7%
10.66
US$479,700 		45,000 -38.7% 10.66 US$479,700
2022-06-17 2022-06-15 S Sale
3.0
ABBATECOLA VINCENT P
Non-Executive Director
20,000 -13.7%
9.75
US$194,920 		20,000 -13.7% 9.75 US$194,920
2022-06-06 2022-06-03 S Sale
3.0
ABBATECOLA VINCENT P
Non-Executive Director
20,000 -12.1%
9.79
US$195,816 		20,000 -12.1% 9.79 US$195,816
2022-05-31 2022-05-31 S Sale
2.7
MANDRACCHIA STEPHEN P
Non-Executive Director
55,785 -12.0%
9.70
US$541,114 		55,785 -12.0% 9.70 US$541,114
2022-05-31 2022-05-31 S Sale
2.7
MANDRACCHIA STEPHEN P
Non-Executive Director
27,892 -23.1%
9.70
US$270,552 		27,892 -23.1% 9.70 US$270,552
2022-05-31 2022-05-27 S Sale
2.7
MANDRACCHIA STEPHEN P
Non-Executive Director
44,215 -8.7%
9.73
US$430,137 		44,215 -8.7% 9.73 US$430,137
2022-05-31 2022-05-27 S Sale
2.7
MANDRACCHIA STEPHEN P
Non-Executive Director
22,108 -15.5%
9.73
US$215,073 		22,108 -15.5% 9.73 US$215,073
2022-05-09 2022-05-09 S Sale
2.8
Prouty Eric A
Non-Executive Director
75,000 -37.8%
9.00
US$675,000 		75,000 -37.8% 9.00 US$675,000
2022-03-14 2022-03-11 S Sale
2.7
MANDRACCHIA STEPHEN P
Non-Executive Director
100,000 -15.8%
5.78
US$578,000 		100,000 -15.8% 5.78 US$578,000
2022-03-14 2022-03-11 S Sale
2.7
MANDRACCHIA STEPHEN P
Non-Executive Director
100,000 -41.2%
5.75
US$575,000 		100,000 -41.2% 5.75 US$575,000
2022-01-18 2021-12-16 S Sale
3.0
ABBATECOLA VINCENT P
Non-Executive Director
10,000 -7.1%
3.76
US$37,590 		10,000 -7.1% 3.76 US$37,590
2022-01-18 2021-12-15 S Sale
3.0
ABBATECOLA VINCENT P
Non-Executive Director
23,000 -14.1%
3.84
US$88,366 		23,000 -14.1% 3.84 US$88,366
2022-01-18 2021-12-10 S Sale
3.0
ABBATECOLA VINCENT P
Non-Executive Director
35,320 -17.8%
4.04
US$142,799 		35,320 -17.8% 4.04 US$142,799
2021-11-19 2021-11-19 S Sale
2.7
MANDRACCHIA STEPHEN P
Non-Executive Director
7,900 -1.2%
4.67
US$36,893 		7,900 -1.2% 4.67 US$36,893
2021-11-19 2021-11-19 S Sale
2.7
MANDRACCHIA STEPHEN P
Non-Executive Director
7,900 -3.1%
4.70
US$37,154 		7,900 -3.1% 4.70 US$37,154
2021-11-19 2021-11-18 S Sale
2.7
MANDRACCHIA STEPHEN P
Non-Executive Director
92,100 -12.3%
4.71
US$433,791 		92,100 -12.3% 4.71 US$433,791
2021-11-19 2021-11-18 S Sale
2.7
MANDRACCHIA STEPHEN P
Non-Executive Director
92,100 -26.9%
4.71
US$433,791 		92,100 -26.9% 4.71 US$433,791
2021-11-17 2021-11-17 S Sale
2.6
Krishnamurti Nat

CFO

Officer
200,000 -88.8%
4.76
US$952,000 		200,000 -88.8% 4.76 US$952,000
2021-06-11 2021-06-09 S Sale
1.0
Houghton Kathleen

VP - Sales and Marketing

Officer
9,100 -18.5%
2.89
US$26,299 		9,100 -18.5% 2.89 US$26,299
2021-06-11 2021-06-09 S Sale
1.0
Houghton Kathleen

VP - Sales and Marketing

Officer
200 -0.4%
2.90
US$579 		200 -0.4% 2.90 US$579
2021-06-11 2021-06-09 S Sale
1.0
Houghton Kathleen

VP - Sales and Marketing

Officer
700 -1.4%
2.90
US$2,030 		700 -1.4% 2.90 US$2,030
2021-06-11 2021-06-09 S Sale
1.0
Houghton Kathleen

VP - Sales and Marketing

Officer
2,015 -3.9%
2.92
US$5,884 		2,015 -3.9% 2.92 US$5,884
2021-06-11 2021-06-09 S Sale
1.0
Houghton Kathleen

VP - Sales and Marketing

Officer
100 -0.2%
2.93
US$293 		100 -0.2% 2.93 US$293
2021-06-11 2021-06-09 S Sale
1.0
Houghton Kathleen

VP - Sales and Marketing

Officer
1,000 -1.9%
2.93
US$2,930 		1,000 -1.9% 2.93 US$2,930
2021-06-11 2021-06-09 S Sale
1.0
Houghton Kathleen

VP - Sales and Marketing

Officer
200 -0.4%
2.93
US$586 		200 -0.4% 2.93 US$586
2021-06-03 2021-06-02 S Sale
0.7
MORCH OTTO C
Non-Executive Director
13,262 -26.3%
2.95
US$39,183 		13,262 -26.3% 2.95 US$39,183
2021-06-02 2021-06-02 S Sale
1.0
Houghton Kathleen

VP - Sales and Marketing

Officer
1,300 -100.0%
3.00
US$3,894 		1,300 -100.0% 3.00 US$3,894
2021-06-02 2021-06-02 S Sale
1.0
Houghton Kathleen

VP - Sales and Marketing

Officer
2,282 -63.7%
3.00
US$6,846 		2,282 -63.7% 3.00 US$6,846
2021-05-27 2021-05-26 S Sale
2.7
MANDRACCHIA STEPHEN P
Non-Executive Director
23,927 -3.8%
2.48
US$59,339 		23,927 -3.8% 2.48 US$59,339
2021-05-27 2021-05-26 S Sale
2.7
MANDRACCHIA STEPHEN P
Non-Executive Director
23,926 -6.5%
2.48
US$59,336 		23,926 -6.5% 2.48 US$59,336
2021-05-27 2021-05-25 S Sale
2.7
MANDRACCHIA STEPHEN P
Non-Executive Director
76,073 -10.8%
2.37
US$180,293 		76,073 -10.8% 2.37 US$180,293
2021-05-27 2021-05-25 S Sale
2.7
MANDRACCHIA STEPHEN P
Non-Executive Director
76,074 -17.2%
2.37
US$180,295 		76,074 -17.2% 2.37 US$180,295
2021-03-15 2021-03-12 S Sale
2.7
MANDRACCHIA STEPHEN P
Non-Executive Director
600 -0.1%
1.58
US$945 		600 -0.1% 1.58 US$945
2021-03-15 2021-03-12 S Sale
2.7
MANDRACCHIA STEPHEN P
Non-Executive Director
8,100 -1.1%
1.57
US$12,725 		8,100 -1.1% 1.57 US$12,725
2021-03-15 2021-03-12 S Sale
2.7
MANDRACCHIA STEPHEN P
Non-Executive Director
91,300 -11.3%
1.57
US$143,341 		91,300 -11.3% 1.57 US$143,341
2020-12-17 2020-12-15 S Sale
3.0
ABBATECOLA VINCENT P
Non-Executive Director
75,000 -39.1%
1.21
US$91,102 		75,000 -39.1% 1.21 US$91,102
2020-11-18 2020-11-16 S Sale
3.5
MONETTA DOMINIC J
Non-Executive Director
15,000 -15.7%
1.15
US$17,280 		15,000 -15.7% 1.15 US$17,280
2020-08-11 2020-08-10 S Sale
3.5
MONETTA DOMINIC J
Non-Executive Director
15,000 -13.6%
1.22
US$18,300 		15,000 -13.6% 1.22 US$18,300
2019-05-28 2019-05-22 S Sale
3.5
MONETTA DOMINIC J
Non-Executive Director
10,000 -9.1%
2.06
US$20,587 		10,000 -9.1% 2.06 US$20,587
2019-05-15 2019-05-14 S Sale
3.5
MONETTA DOMINIC J
Non-Executive Director
5,801 -5.0%
1.96
US$11,370 		5,801 -5.0% 1.96 US$11,370
2019-05-13 2019-05-09 S Sale
3.5
MONETTA DOMINIC J
Non-Executive Director
5,000 -4.1%
1.90
US$9,500 		5,000 -4.1% 1.90 US$9,500
2019-05-09 2019-05-08 B Purchase
2.8
Prouty Eric A
5,000 +6.6%
1.89
US$9,450 		5,000 +6.6% 1.89 US$9,450
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