John Marshall Bancorp, Inc.

JMSB·NASDAQ·$21.32Share Price as of 11/2·$301MMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/07/26 10-QQ1 ended 03/31/2605/08/26 10-KFY 202503/13/26 10-QQ3 ended 09/30/2511/14/25 10-QQ2 ended 06/30/2508/12/25

Disclosures

8-KCurrent report10/28/26 8-KCurrent report10/28/26 8-KCurrent report09/08/26 8-KCurrent report08/19/26 8-KCurrent report07/28/26

Prospectuses and Registrations

424B3Prospectus10/16/26 S-4/ARegistration (business combination, amended)10/13/26 S-4Registration (business combination)10/02/26 S-8Registration of securities for employees07/23/25 S-3Shelf registration05/22/25

Proxies

DEF 14ADefinitive proxy04/29/26 DEFA14AAdditional proxy materials04/29/26 DEF 14ADefinitive proxy04/29/25 DEFA14AAdditional proxy materials04/29/25 DEF 14ADefinitive proxy04/29/24

Ownership

Form 4Insider transaction08/28/26 Form 4Insider transaction08/28/26 Form 4Insider transaction06/26/26 Form 4Insider transaction06/05/26 Form 4Insider transaction06/05/26

Other

EFFECTRequest for effectiveness10/16/26 42542509/08/26 EFFECTRequest for effectiveness06/05/25 CORRESPCorrespondence with the SEC06/03/25 UPLOADLetter from the SEC05/29/25