Form 4 Tracker
HUDSON TECHNOLOGIES INC /NY
HDSN

27 insider filings · Latest: Sep 24, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Sep 24, 2026Sep 28 8:25 PMHartree Partners, LP10% Owner
Purchase
118,549$5.10$604.4K5,348,517(D)

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Sep 23, 2026Sep 23 9:03 PMHartree Partners, LP10% Owner
Purchase
11,013$5.10$56.2K5,229,968(D)

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Sep 21, 2026Sep 23 9:03 PMHartree Partners, LP10% Owner
Purchase
2,502$5.10$12.8K5,218,955(D)

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Sep 16, 2026Sep 18 8:16 PMHartree Partners, LP10% Owner
Purchase
11,136$5.10$56.8K5,216,453(D)

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Sep 2, 2026Sep 4 9:43 PMHartree Partners, LP10% Owner
Purchase
5,317$5.10$27.1K5,205,317(D)

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Aug 25, 2026Aug 26 9:31 PMHartree Partners, LP10% Owner
Purchase
91,166$5.50$501.1K5,200,000(D)

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Aug 24, 2026Aug 26 9:31 PMHartree Partners, LP10% Owner
Purchase
9,446$5.50$52.0K5,108,834(D)

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Aug 12, 2026Aug 14 9:10 PMHartree Partners, LP10% Owner
Purchase
5,198$5.50$28.6K5,099,388(D)

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Jul 29, 2026Jul 31 8:16 PMHartree Partners, LP10% Owner
Purchase
52,104$5.99$312.1K5,094,190(D)

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Jul 21, 2026Jul 22 8:29 PMHartree Partners, LP10% Owner
Purchase
47,708$5.99$285.7K5,042,086(D)

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Jul 20, 2026Jul 22 8:29 PMHartree Partners, LP10% Owner
Purchase
17,842$5.99$106.9K4,994,378(D)

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Jul 7, 2026Jul 8 9:10 PMHartree Partners, LP10% Owner
Purchase
600$5.99$3.6K4,976,536(D)

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Jul 6, 2026Jul 8 9:10 PMHartree Partners, LP10% Owner
Purchase
4,634$5.99$27.8K4,975,936(D)

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Jul 2, 2026Jul 2 10:00 PMHartree Partners, LP10% Owner
Purchase
271,302$5.97$1.6M4,971,302(D)

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Jul 1, 2026Jul 2 10:00 PMHartree Partners, LP10% Owner
Purchase
288,111$5.88$1.7M4,700,000(D)

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Jun 30, 2026Jul 2 10:00 PMHartree Partners, LP10% Owner
Purchase
204,789$5.68$1.2M4,411,889(D)

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May 13, 2026May 21 3:31 PMRichard ParrilloDirector
Purchase
10,000$4.83$48.3K195,746(D)

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May 19, 2026May 21 1:02 PMBrian J. BertauxChief Financial Officer
Purchase
2,000$4.87$9.7K2,000(D)

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May 14, 2026May 15 5:25 PMLoan Nguyen MansyDirector
Purchase
5,000$4.96$24.8K25,595(D)

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May 14, 2026May 15 5:21 PMRichard ParrilloDirector
Purchase
5,000$4.96$24.8K25,595(D)

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Jun 17, 2026Jun 22 1:21 PMAlan SheriffDirector
Grant/Award
15,360$5.6315,360(D)

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Jun 17, 2026Jun 22 1:20 PMEric A ProutyDirector
Grant/Award
21,186$5.6321,186(D)

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Jun 17, 2026Jun 22 1:19 PMRichard ParrilloDirector
Grant/Award
31,780$5.6331,780(D)

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Jun 17, 2026Jun 22 1:18 PMLoan Nguyen MansyDirector
Grant/Award
21,186$5.6321,186(D)

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Jun 17, 2026Jun 22 1:17 PMNicole E BulgarinoDirector
Grant/Award
31,780$5.6331,780(D)

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Jun 17, 2026Jun 22 1:16 PMJeffrey R FeelerDirector
Grant/Award
15,360$5.6315,360(D)

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