First Keystone Corporation

FKYS·OTC·$17.85Share Price as of 11/2·$112MMarket Cap as of 11/2

Financials

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

Disclosures

8-KCurrent report10/01/26 8-KCurrent report08/28/26 8-KCurrent report08/27/26 8-KCurrent report08/03/26 8-KCurrent report05/28/26

Prospectuses and Registrations

S-3DProspectus / registration08/07/26 424B3Prospectus08/27/19 S-3/AShelf registration (amended)11/09/18 S-3Shelf registration11/02/18 S-3DProspectus / registration08/31/18

Proxies

DEF 14ADefinitive proxy04/08/26 DEF 14ADefinitive proxy03/26/25 DEF 14ADefinitive proxy04/18/24 DEFA14AAdditional proxy materials04/18/24 DEF 14ADefinitive proxy03/24/23

Ownership

Form 4Insider transaction06/23/26 Form 4Insider transaction05/28/26 Form 4Insider transaction05/28/26 Form 4Insider transaction05/27/26 Form 5Annual insider statement02/12/26

Other

DD10/13/26 NT 10-QLate filing notification (10-Q)05/15/24 DD12/11/20 NT 10-QLate filing notification (10-Q)11/09/20 EFFECTRequest for effectiveness11/09/18