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HUDSON TECHNOLOGIES INC /NY

HDSN Net buying

CIK 0000925528 #3808 in the set updated 17 Sep 2026

Bought (1 mo)

$580.16K

out of their own pocket, the only kind of buying there is

Sold (1 mo)

$0.00

$0.00 on a plan · $0.00 straight out of an exercise

Sold at will

$0.00

0 of 0 sales

Net

+$580.16K

+$580.16K against sales at will

By person

12 insiders · 3 transactions

0.4×

Kenneth Gaglione holds only 0.4 times base salary in stock. $25.50K of shares against $53.46K in salary for 2025.

Salary from the company's own proxy. The shares are what Kenneth Gaglione last reported holding, valued at $5.10, the price Common Stock, par value $0.01 was last bought or sold at on the open market here, on 2 Sep 2026.

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

Hartree Partners, LP entity

10% owner

$580.16K (3)

—

+$580.16K

5,205,317

12.37%

$26.55M

+23.7%

COLEMAN BRIAN F

Director

—

1,944,312

4.62%

$9.92M

−20.0%

ABBATECOLA VINCENT P

Director

—

169,748

0.4033%

$865.71K

+6.5%

Houghton Kathleen

Sr. VP-Sales and Marketing

—

158,618

0.3769%

$808.95K

+285.3%

Prouty Eric A

Director

—

158,292

0.3761%

$807.29K

+9.4%

Mansy Loan Nguyen

Director

—

34,476

0.0819%

$175.83K

+142.3%

Parrillo Richard

Director

—

25,595

0.0608%

$130.53K

+47.0%

Sheriff Alan

Director

—

12,484

0.0297%

$63.67K

—

Feeler Jeffrey R

Director

—

12,384

0.0294%

$63.16K

—

Bulgarino Nicole E

Director

—

11,048

0.0262%

$56.34K

+51.0%

Gaglione Kenneth

President and CEO

—

5,000

0.0119%

$25.50K

—

Bertaux Brian J.

Chief Financial Officer

—

2,000

0.0048%

$10.20K

—

Individual transactions

Insider

Date

Role

Action

Price

Amount

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

What was left out

Form 4 filings counted 2

Amendments (4/A) skipped 0

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 0

Sales at will 0

Transactions with no price 0

Shares from compensation/vesting 0

History held since 7 Sep 2016