Key facts
- This page summarizes Brent D. Rosenthal's Form 4 filing for Horizon Kinetics Holding Corp (HKHC).
- 1 reported transaction and 0 derivative rows are listed below.
- Accepted by SEC: 21 May 2026, 09:57.
Brent D. Rosenthal - 20 May 2026 Form 4 Insider Report for Horizon Kinetics Holding Corp (HKHC)
- Reporting relationship
- Director
- Issuer ticker
- HKHC
- Reported as of
- 20 May 2026
- Net transaction value
- +$19,495
- SEC form
- 4
- Accepted by SEC
- 21 May 2026, 09:57:36 UTC
- Prior SEC filing
- 14 May 2026
- Next SEC filing
- 22 Jun 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/Jay Kesslen, attorney-in-fact
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Brent D. Rosenthal filed Form 4 for Horizon Kinetics Holding Corp (HKHC) on 21 May 2026.
Change
- Previous filing in this sequence was filed on 14 May 2026.
- Current net transaction value: +$19,495.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001443849
Primary reporting owner
Rosenthal Brent D
- Relationship
- Director
- Address
- 470 PARK AVENUE SOUTH, 8TH FLOOR SOUTH, NEW YORK
- Signature
- /s/Jay Kesslen, attorney-in-fact
- Signature date
- 21 May 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
HKHC
transaction
Common Stock
Purchase
- Transaction value
- $19,495
- Shares
- +700
- Change %
- +40%
- Price
- $27.85
- Shares after
- 2,450
- Date
- 20 May 2026
- Ownership
- Direct
* marks a reported price that did not pass the local price check.