Horizon Kinetics CFO buys 250 shares at $26.50–26.75
Horizon Kinetics Holding Corp (HKHC) reported that its Chief Financial Officer, Mark Herndon, purchased company common stock in the open market.
Sentiment and the balance of points
Rhea-AI Sentiment reads the wording of the document, how positive or negative its language is on a 1 to 5 scale. The balance of points shown with the takes weighs what the document actually discloses, so the two can disagree, for example when a trial that missed its main goal is described in upbeat language.
Form Type
4
Rhea-AI Filing Summary
Horizon Kinetics Holding Corp (HKHC) reported that its Chief Financial Officer, Mark Herndon, purchased company common stock in the open market. He bought 50 shares on 2026-08-19 at $26.50 per share and 200 shares on 2026-08-20 at $26.75 per share, all held directly. The Rule 10b5-1 trading-plan checkbox was left unchecked.
Insider Trade Summary
Net Buyer: 250 shares
Net Buy
2 txns
Insider
Herndon Mark
Role
Chief Financial Officer
Bought
250 shs ($7K)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Purchase | Common Stock | 200 | $26.75 | $5K |
| Purchase | Common Stock | 50 | $26.50 | $1K |
Holdings After Transaction:
Common Stock — 550 shares (Direct)
Key Figures
Shares purchased 2026-08-19: 50 shares
Price 2026-08-19: $26.50 per share
Shares purchased 2026-08-20: 200 shares
+2 more
5 metrics
Shares purchased 2026-08-19
50 shares
Common Stock purchased by CFO Mark Herndon at $26.50 per share
Price 2026-08-19
$26.50 per share
Open-market purchase price for 50 Common Stock shares
Shares purchased 2026-08-20
200 shares
Common Stock purchased by CFO Mark Herndon at $26.75 per share
Price 2026-08-20
$26.75 per share
Open-market purchase price for 200 Common Stock shares
Total shares bought
250 shares
Aggregate net shares purchased across both reported transactions
Key Terms
Form 4, Rule 10b5-1, beneficial ownership, open market or private transaction
4 terms
Form 4 regulatory
"INSIDER FILING DATA (Form 4): { "issuerName": "Horizon Kinetics Holding Corp""
Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.
Rule 10b5-1 regulatory
"aff_10b5_one is the filing's document-level Rule 10b5-1 checkbox: true = transactions affirmed"
Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.
beneficial ownership regulatory
"Footnotes may indicate: - Whether the reporting person has voting/investment authority over the shares - Any disclaimers of beneficial ownership"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
open market or private transaction financial
""transaction_code_description": "Purchase in open market or private transaction""
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What insider buying did HKHC disclose in this Form 4?
Horizon Kinetics Holding Corp (HKHC) disclosed that CFO Mark Herndon purchased a total of 250 common shares in two open-market transactions on 2026-08-19 and 2026-08-20 at prices between $26.50 and $26.75 per share.
Were the HKHC insider purchases made under a Rule 10b5-1 trading plan?
No. The filing’s Rule 10b5-1 checkbox is marked false, indicating the reported HKHC transactions were not affirmed as made under a pre-arranged trading plan, based on the document-level disclosure of the 10b5-1 status.
Did the HKHC Form 4 report any insider sales of stock?
No. The Form 4 for HKHC shows two purchase transactions and no reported sales. The transaction summary indicates a net-buy direction, with 250 shares purchased and zero shares sold in the reported period.
What type of security did the HKHC insider buy in these transactions?
The insider transactions reported for HKHC involve purchases of Common Stock. Both entries list the security title as common stock, with no derivative securities reported in the derivative section of the filing for these specific transactions.
Is there any information on derivative positions in this HKHC Form 4?
No derivative transactions or positions are listed for this HKHC filing. The derivativeSummary is empty, and both reported trades involve only non-derivative Common Stock, so the disclosure focuses solely on direct share purchases.
AI-generated analysis. How Rhea-AI works. Not financial advice.
Accepted by SEC EDGAR
Learn about SEC filing dates