Horizon Kinetics Holding Corporation

HKHC·OTC·$27.20Share Price as of 11/2·$507MMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/13/26 10-QQ1 ended 03/31/2605/15/26 10-KFY 202503/12/26 10-QQ3 ended 09/30/2511/13/25 10-QQ2 ended 06/30/2508/12/25

Disclosures

8-KCurrent report08/13/26 8-KCurrent report05/15/26 8-KCurrent report05/11/26 8-KCurrent report04/08/26 8-KCurrent report03/12/26

Prospectuses and Registrations

S-8Registration of securities for employees06/30/15 S-8Registration of securities for employees08/19/11 S-8Registration of securities for employees12/16/08 S-8Registration of securities for employees06/22/05 S-8Registration of securities for employees12/12/00

Proxies

DEF 14ADefinitive proxy04/20/26 DEF 14ADefinitive proxy04/30/25 DEF 14ADefinitive proxy05/13/24 PRE 14APreliminary proxy05/02/24 DEF 14ADefinitive proxy04/28/23

Ownership

Form 4Insider transaction09/22/26 Form 4Insider transaction09/03/26 Form 4Insider transaction08/31/26 Form 4Insider transaction08/28/26 Form 4Insider transaction08/27/26

Other

ARSAnnual report to shareholders04/30/25 DD08/16/24 ARSAnnual report to shareholders04/28/23 NT 10-QLate filing notification (10-Q)08/15/16 8-A12G/A8-A12G/A02/23/16