Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001437749-26-028621
Filing Date
2026-08-20
Accepted
2026-08-20 14:08:13
Documents
1
Period of Report
2026-08-19

Document Format Files

Seq Description Document Type Size
1 FORM 4 rdgdoc.html 4  
1 FORM 4 rdgdoc.xml 4 4304
  Complete submission text file 0001437749-26-028621.txt   5980
Mailing Address 1270 AVENUE OF THE AMERICAS 27TH FLOOR NEW YORK NY 10020
Business Address 1270 AVENUE OF THE AMERICAS 27TH FLOOR NEW YORK NY 10020 6462912300
Horizon Kinetics Holding Corp (Issuer) CIK: 0000088000 (see all company filings)

EIN.: 840920811 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 6282 Investment Advice
(CF Office: 02 Finance)

Mailing Address C/O HORIZON KINETICS LLC 1270 AVENUE OF THE AMERICAS, 27TH FLOOR NEW YORK NY 10020
Business Address
Herndon Mark (Reporting) CIK: 0001754318 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-13458 | Film No.: 261298941