Grid Dynamics Holdings, Inc.

GDYN·NASDAQ·$7.00Share Price as of 11/2·$585MMarket Cap as of 11/2

Financials

10-QQ3 ended 09/30/2610/30/26 10-QQ2 ended 06/30/2607/30/26 10-K/AFY 202504/30/26 10-QQ1 ended 03/31/2604/30/26 10-KFY 202503/05/26

Disclosures

8-KCurrent report10/29/26 8-KCurrent report07/30/26 8-KCurrent report04/30/26 8-KCurrent report03/05/26 8-KCurrent report02/27/26

Prospectuses and Registrations

POS AMPost-effective amendment07/30/26 POS AMPost-effective amendment04/30/26 S-8Registration of securities for employees03/05/26 424B5Prospectus supplement11/13/24 424B5Prospectus supplement11/12/24

Proxies

DEFA14AAdditional proxy materials12/18/25 DEFA14AAdditional proxy materials12/16/25 DEF 14ADefinitive proxy11/10/25 DEFA14AAdditional proxy materials11/10/25 DEF 14ADefinitive proxy11/12/24

Ownership

144Proposed sale of securities10/30/26 144Proposed sale of securities10/30/26 144Proposed sale of securities10/30/26 Form 4Insider transaction10/30/26 Form 4Insider transaction10/30/26

Other

EFFECTRequest for effectiveness08/05/26 RWRegistration withdrawal05/27/26 EFFECTRequest for effectiveness05/08/26 ARSAnnual report to shareholders11/10/25 ARSAnnual report to shareholders11/12/24