Brent D Rosenthal insider trades: Horizon Kinetics Holding (HKHC) stock purchases
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Brent reports to the SEC
and 1 more company
Open-market buys and sales
20 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Aug 24, 2026 | HKHC | ↑ Buy | 2,000 | $27.00 | $54K | Direct | Aug 25, 2026 (1d) |
| May 20, 2026 | HKHC | ↑ Buy | 700 | $27.85 | $19K | Direct | May 21, 2026 (1d) |
| Mar 18, 2026 | HKHC | ↑ Buy | 750 | $33.05 | $25K | Direct | Mar 19, 2026 (1d) |
| Mar 13, 2026 | PBI | ↑ Buy | 4,000 | $10.22 | $41K | Direct | Mar 17, 2026 (4d) |
| Nov 25, 2025 | HKHC | ↑ Buy | 300 | $27.28 | $8K | Direct | Nov 26, 2025 (1d) |
| Nov 25, 2025 | PBI | ↑ Buy | 2,000 | $10.00 | $20K | Direct | Nov 25, 2025 (0d) |
| Sep 3, 2025 | PBI | ↑ Buy | 3,000 | $11.97 | $36K | Direct | Sep 5, 2025 (2d) |
| Sep 2, 2025 | HKHC | ↑ Buy | 300 | $38.00 | $11K | Direct | Sep 3, 2025 (1d) |
| Nov 19, 2024 | HKHC | ↑ Buy | 100 | $37.06 | $4K | Direct | Nov 20, 2024 (1d) |
| Nov 14, 2024 | HKHC | ↑ Buy | 300 | $38.06 | $11K | Direct | Nov 15, 2024 (1d) |
| Aug 11, 2021 | SCOR | ↑ Buy | 15,000 | $3.25 | $49K | Direct | Aug 12, 2021 (1d) |
| May 6, 2021 | RIBT | ↑ Buy | 11,779 | $0.92 | $11K | Direct | May 7, 2021 (1d) |
| Dec 19, 2019 | RIBT | ↑ Buy | 20,000 | $1.25 | $25K | Direct | Dec 20, 2019 (1d) |
| Nov 7, 2019 | SCOR | ↑ Buy | 46,500 | $3.19 | $149K | Direct | Nov 12, 2019 (5d) |
| May 29, 2019 | RIBT | ↑ Buy | 13,094 | $2.92 | $38K | Direct | May 29, 2019 (0d) |
| Aug 8, 2018 | RIBT | ↑ Buy | 28,009 | $2.64 | $74K | Direct | Aug 9, 2018 (1d) |
| Sep 21, 2016 | SITO | ↑ Buy | 26,667 | $3.75 | $100K | Direct | Oct 17, 2016 (26d) |
| Feb 10, 2015 | RENT | ↑ Buy | 1,000 | $53.70 | $54K | Direct | Feb 10, 2015 (0d) |
| Mar 25, 2014 | RENT | ↑ Buy | 1,000 | $57.03 | $57K | Direct | Mar 25, 2014 (0d) |
| Jun 30, 2011 | RENT | ↑ Buy | 10,000 | $17.99 | $180K | Direct | Jul 5, 2011 (5d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other HKHC insiders
Open-market trades in the last 12 months
About Brent D Rosenthal's insider trades
Brent D Rosenthal is a director at Horizon Kinetics Holding (HKHC). Since Jun 30, 2011, Brent has reported 20 open-market purchases worth $966K and no sales on SEC Form 4. In the last 12 months: 6 buys ($167K).
Their filings also include grants and awards (41 filings), option exercises (6 filings), shares returned to the company (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every HKHC insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.