Company · CIK 0000088000 · SIC 6282 — Investment Advice · OTC
Horizon Kinetics Holding Corp · HKHC
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 18, 2026 PForm 4 → | Sep 22, 9:28 am EDT | Allison NagelbergDirector | 190 | $26.27 | $4,991 | 590 | +47.5% | |
| Sep 2, 2026 PForm 4 → | Sep 3, 8:28 am EDT | Alice C BrennanDirector | 200 | $25.92 | $5,184 | 2,000 | +11.1% | |
| Aug 28, 2026 PForm 4 → | Aug 31, 9:30 am EDT | Alice C BrennanDirector | 200 | $26.20 | $5,240 | 1,800 | +12.5% | |
| Aug 27, 2026 PForm 4 → | Aug 28, 2:16 pm EDT | Alice C BrennanDirector | 200 | $26.00 | $5,200 | 1,600 | +14.3% | |
| Aug 26, 2026 PForm 4 → | Aug 27, 1:30 pm EDT | Daniel J Roller +3Director | 500 | $26.50 | $13,250 | 10,000 | +5.26% | |
| Aug 25, 2026 PForm 4 → | Aug 26, 11:15 am EDT | Alice C BrennanDirector | 200 | $26.75 | $5,350 | 1,400 | +16.7% | |
| Aug 24, 2026 PForm 4 → | Aug 25, 11:50 am EDT | Alice C BrennanDirector | 200 | $26.87 | $5,374 | 1,200 | +20.0% | |
| Aug 24, 2026 PForm 4 → | Aug 25, 10:11 am EDT | Brent D RosenthalDirector | 2,000 | $27.00 | $54,000 | 4,450 | +81.6% | |
| Aug 19, 2026 PForm 4 → | Aug 20, 2:08 pm EDT | Mark HerndonChief Financial Officer | 250 | $26.70 | $6,675 | 550 | +83.3% |
Reported at this company — derivatives (options, RSUs, warrants)
No reported derivative activity in this period.