Horizon Kinetics Holding Corp
HKHC- Exchange
- OTC
- Industry
- Investment Advice
- SEC CIK
- 0000088000
In the last 90 days, Horizon Kinetics Holding Corp insiders filed 9 open-market purchases and 0 sales; 1 institution reported holding it in 13F filings for Q2 2026, worth $35.5M in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Horizon Kinetics Holding Corp insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 9 filings
- 5 insiders, $105.3K in total
- Open-market sells
- 0 filings
- Insiders trading
- 5
- Net value
- +$105.3K
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Horizon Kinetics Holding Corp, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Nagelberg Allison | Director | 590 | Sep 22, 2026 | 2 |
| Brennan Alice C | Director | 2,000 | Sep 3, 2026 | 5 |
| Maran Partners Fund, LP | Other: Affiliate | 10,000 | Aug 27, 2026 | 2 |
| Maran Capital Management, LLC | Other: Affiliate | 10,000 | Aug 27, 2026 | 2 |
| Maran Partners GP, LLC | Other: Affiliate | 10,000 | Aug 27, 2026 | 2 |
| Roller Daniel J | Director | 10,000 | Aug 27, 2026 | 2 |
| Rosenthal Brent David | Director | 4,450 | Aug 25, 2026 | 4 |
| Herndon Mark | Chief Financial Officer | 550 | Aug 20, 2026 | 4 |
| Stahl Murray | CEO and CIO | 135Indirect | Mar 24, 2026 | 17 |
| Horizon Common Inc | 10% Owner | 135Indirect | Mar 24, 2026 | 17 |
| Maran SPV, LP | Other: Affiliate | 0Indirect | Dec 23, 2025 | 1 |
| Maran SPV GP, LLC | Other: Affiliate | 0Indirect | Dec 23, 2025 | 1 |
| Arndt David M | President, Cons Prod Div. | 22,045 | Oct 15, 2025 | 1 |
| Kesslen Jay H | General Counsel and Secretary | 350 | Nov 26, 2024 | 0 |
| Williams Alun | Chief Operating Officer | 50 | Nov 20, 2024 | 0 |
| Russell Grimaldi | CCO & Assoc General Counsel | 132 | Nov 19, 2024 | 0 |
| Doyle Peter | Vice-President | 880,682 | Sep 6, 2024 | 0 |
| Goldstein Mark E | 10% Owner | 0 | Jun 13, 2023 | 0 |
| Malhotra R. Rimmy | Director | 100,000 | May 15, 2023 | 0 |
| Hyman Michael B. | Other: Sales Principal | 65,837 | Oct 28, 2022 | 0 |
| Pedrazzini Tisha | President | 15,000 | Mar 3, 2022 | 0 |
| Neri Philip A | Director | 127,667 | Nov 16, 2021 | 0 |
| Bailey Leah S | Director | 16,666 | Nov 16, 2021 | 0 |
| Laber Gerald J | Director | 211,735 | Nov 8, 2021 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Dec 10, 2025 (view filing)12:45 PM ET | Dec 9 | 1 day | Stahl Murray and 1 otherCEO and CIO | PPurchase | +10 | $27.00 | +$270 | +13.0%87 after | 2 lots |
| Dec 11, 2025 (view filing)1:08 PM ET | Dec 10 | 1 day | Stahl Murray and 1 otherCEO and CIO | PPurchase | +12 | $27.00 | +$324 | 0.0%249.1K after | |
| Dec 11, 2025 (view filing)1:08 PM ET | Dec 10 | 1 day | Stahl Murray and 1 otherCEO and CIO | PPurchase | +10 | $27.00 | +$270 | +12.3%91 after | 2 lots |
| Mar 19, 2026 (view filing) | Mar 18 | 1 day | Rosenthal Brent DavidDirector | PPurchase | +750 | $33.05 | +$24.8K | +75.0%1.75K after | |
| Mar 19, 2026 (view filing) | Mar 18 | 1 day | Herndon MarkChief Financial Officer | PPurchase | +80 | $33.03 | +$2.64K | +66.7%200 after | |
| Mar 19, 2026 (view filing)2:13 PM ET | Mar 18 | 1 day | Stahl Murray and 1 otherCEO and CIO | PPurchase | +10 | $34.00 | +$340 | 0.0%249.1K after | |
| Mar 19, 2026 (view filing)2:13 PM ET | Mar 18 | 1 day | Stahl Murray and 1 otherCEO and CIO | PPurchase | +17 | $34.00 | +$578 | +20.7%99 after | 2 lots |
| Mar 20, 2026 (view filing)12:38 PM ET | Mar 19 | 1 day | Stahl Murray and 1 otherCEO and CIO | PPurchase | +46 | $34.06 | +$1.57K | 0.0%249.2K after | |
| Mar 20, 2026 (view filing)12:38 PM ET | Mar 19 | 1 day | Stahl Murray and 1 otherCEO and CIO | PPurchase | +43 | $34.06 | +$1.46K | +58.1%117 after | 2 lots |
| Mar 23, 2026 (view filing) | Mar 20 | 3 days | Nagelberg AllisonDirector | PPurchase | +150 | $33.96 | +$5.09K | +60.0%400 after | |
| Mar 24, 2026 (view filing)2:53 PM ET | Mar 20 | 4 days | Stahl Murray and 1 otherCEO and CIO | PPurchase | +10 | $34.60 | +$346 | 0.0%249.2K after | Amended |
| Mar 24, 2026 (view filing)2:53 PM ET | Mar 20 | 4 days | Stahl Murray and 1 otherCEO and CIO | PPurchase | +43 | $34.60 | +$1.49K | +46.7%135 after | Amended2 lots |
| May 21, 2026 (view filing) | May 20 | 1 day | Rosenthal Brent DavidDirector | PPurchase | +700 | $27.85 | +$19.5K | +40.0%2.45K after | |
| May 21, 2026 (view filing) | May 20 | 1 day | Herndon MarkChief Financial Officer | PPurchase | +100 | $27.85 | +$2.79K | +50.0%300 after | |
| Aug 20, 2026 (view filing)2:08 PM ET | Aug 19-20 | 1 day | Herndon MarkChief Financial Officer | PPurchase | +250 | $26.70 | +$6.67K | +83.3%550 after | 2 lots |
| Aug 25, 2026 (view filing)10:11 AM ET | Aug 24 | 1 day | Rosenthal Brent DavidDirector | PPurchase | +2.00K | $27.00 | +$54.0K | +81.6%4.45K after | |
| Aug 25, 2026 (view filing)11:50 AM ET | Aug 24 | 1 day | Brennan Alice CDirector | PPurchase | +200 | $26.87 | +$5.37K | +20.0%1.20K after | |
| Aug 26, 2026 (view filing)11:15 AM ET | Aug 25 | 1 day | Brennan Alice CDirector | PPurchase | +200 | $26.75 | +$5.35K | +16.7%1.40K after | |
| Aug 27, 2026 (view filing)1:30 PM ET | Aug 26 | 1 day | Roller Daniel J and 3 othersDirector | PPurchase | +500 | $26.50 | +$13.3K | +5.3%10.0K after | |
| Aug 28, 2026 (view filing)2:16 PM ET | Aug 27 | 1 day | Brennan Alice CDirector | PPurchase | +200 | $26.00 | +$5.20K | +14.3%1.60K after | |
| Aug 31, 2026 (view filing)9:30 AM ET | Aug 28 | 3 days | Brennan Alice CDirector | PPurchase | +200 | $26.20 | +$5.24K | +12.5%1.80K after | |
| Sep 3, 2026 (view filing)8:28 AM ET | Sep 2 | 1 day | Brennan Alice CDirector | PPurchase | +200 | $25.92 | +$5.18K | +11.1%2.00K after | |
| Sep 22, 2026 (view filing)9:28 AM ET | Sep 18 | 4 days | Nagelberg AllisonDirector | PPurchase | +190 | $26.27 | +$4.99K | +47.5%590 after |