$HKHC insider trading
Over the last 12 months, Horizon Kinetics Holding insiders reported 69 buys totaling $85K and no sales across SEC Form 4 filings.
- Bought · 12m
- $85K 69 events
- Sold · 12m
- — 0 events
- Events · 12m
- 69 Form 4 filings, grouped
- Insiders · 12m
- 5 distinct reporters
- 10b5-1 share
- 0% of events, not dollars
All insider trades
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Mar 20, 2026 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 43 | $34.6 | $1K | +46.7% | 2 tranches · indirect |
| Mar 20, 2026 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 10 | $34.6 | $346 | — | — |
| Mar 20, 2026 | Nagelberg AllisonD | ▲ Buy | 150 | $33.96 | $5K | +60% | — |
| Mar 19, 2026 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 43 | $34.06 | $1K | +58.1% | 2 tranches · indirect |
| Mar 19, 2026 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 46 | $34.06 | $2K | — | — |
| Mar 18, 2026 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 17 | $34 | $578 | +20.7% | 2 tranches · indirect |
| Mar 18, 2026 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 10 | $34 | $340 | — | — |
| Mar 18, 2026 | Herndon MarkChief Financial Officer · O | ▲ Buy | 80 | $33.03 | $3K | +66.7% | — |
| Mar 18, 2026 | Rosenthal Brent DD | ▲ Buy | 750 | $33.05 | $25K | +75% | — |
| Dec 10, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 10 | $27 | $270 | +12.3% | 2 tranches · indirect |
| Dec 10, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 12 | $27 | $324 | — | — |
| Dec 9, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 10 | $27 | $270 | +13% | 2 tranches · indirect |
| Dec 9, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 12 | $27 | $324 | — | — |
| Dec 8, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 10 | $26.73 | $267 | +13.7% | 2 tranches · indirect |
| Dec 8, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 12 | $26.73 | $321 | — | — |
| Dec 5, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 10 | $27.75 | $278 | +14.5% | 2 tranches · indirect |
| Dec 5, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 12 | $27.75 | $333 | — | — |
| Dec 4, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 10 | $27.75 | $278 | +15.4% | 2 tranches · indirect |
| Dec 4, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 12 | $27.75 | $333 | — | — |
| Dec 3, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 10 | $27 | $270 | +16.4% | 2 tranches · indirect |
| Dec 3, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 12 | $27 | $324 | — | — |
| Dec 2, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 10 | $27.23 | $272 | +17.5% | 2 tranches · indirect |
| Dec 2, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 12 | $27.23 | $327 | — | — |
| Dec 1, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 10 | $27 | $270 | +18.9% | 2 tranches · indirect |
| Dec 1, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 12 | $27 | $324 | — | — |
| Nov 28, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 10 | $27.23 | $272 | +20.4% | 2 tranches · indirect |
| Nov 28, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 12 | $27.23 | $327 | — | — |
| Nov 26, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 12 | $27.23 | $327 | +27.9% | 2 tranches · indirect |
| Nov 26, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 12 | $27.23 | $327 | — | — |
| Nov 25, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 12 | $27 | $324 | +30.8% | 2 tranches · indirect |
| Nov 25, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 12 | $27 | $324 | — | — |
| Nov 25, 2025 | Rosenthal Brent DD | ▲ Buy | 300 | $27.28 | $8K | +42.9% | — |
| Nov 24, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 12 | $28 | $336 | +34.3% | 2 tranches · indirect |
| Nov 24, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 12 | $28 | $336 | — | — |
| Nov 21, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 13 | $28.25 | $367 | +43.3% | 2 tranches · indirect |
| Nov 21, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 12 | $28.25 | $339 | — | — |
| Nov 20, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 13 | $27.5 | $358 | +50% | 2 tranches · indirect |
| Nov 20, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 11 | $27.5 | $303 | — | — |
| Nov 20, 2025 | Herndon MarkChief Financial Officer · O | ▲ Buy | 100 | $29 | $3K | +500% | — |
| Sep 9, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 16 | $38.3 | $613 | +84.2% | 3 tranches · indirect |
| Sep 9, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 8 | $38.3 | $306 | — | — |
| Sep 8, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 15 | $38.85 | $583 | +93.8% | 3 tranches · indirect |
| Sep 8, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 10 | $38.85 | $389 | — | — |
| Sep 5, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 15 | $39 | $585 | +125% | 3 tranches · indirect |
| Sep 5, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 8 | $39 | $312 | — | — |
| Sep 4, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 15 | $39.45 | $592 | +187.5% | 3 tranches · indirect |
| Sep 4, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 8 | $39.45 | $316 | — | — |
| Sep 3, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 15 | $40.2 | $603 | +375% | 3 tranches · indirect |
| Sep 3, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 8 | $40.2 | $322 | — | — |
| Sep 2, 2025 | STAHL MURRAYCEO and CIO · O·D·10% | ▲ Buy | 15 | $38 | $570 | — | 3 tranches · indirect |
Every $HKHC filing on this page is one API call away
The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Horizon Kinetics Holding filings can reach your inbox instead.
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $HKHC feed.