Hudson Technologies Inc.

HDSN·NASDAQ·$5.13Share Price as of 11/2·$216MMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/07/26 10-QQ1 ended 03/31/2605/11/26 10-KFY 202503/16/26 10-QQ3 ended 09/30/2511/07/25 10-QQ2 ended 06/30/2508/01/25

Disclosures

8-KCurrent report10/28/26 8-KCurrent report08/06/26 8-KCurrent report08/05/26 8-KCurrent report06/12/26 8-KCurrent report06/11/26

Prospectuses and Registrations

S-3Shelf registration12/16/25 S-8Registration of securities for employees08/23/24 S-3Shelf registration01/13/23 S-3/AShelf registration (amended)01/12/21 S-3Shelf registration12/23/20

Proxies

DEF 14ADefinitive proxy04/24/26 DEFA14AAdditional proxy materials04/24/26 DEF 14ADefinitive proxy04/25/25 DEFA14AAdditional proxy materials04/25/25 DEF 14ADefinitive proxy04/25/24

Ownership

Form 4Insider transaction09/28/26 Form 4Insider transaction09/23/26 Form 4Insider transaction09/18/26 Form 4Insider transaction09/04/26 Form 4Insider transaction08/26/26

Other

ARSAnnual report to shareholders04/24/26 EFFECTRequest for effectiveness01/07/26 CORRESPCorrespondence with the SEC01/05/26 ARSAnnual report to shareholders04/25/25 ARSAnnual report to shareholders04/25/24