Herndon Mark — SEC Form 4 filings
SEC reporting owner CIK 1754318. 5 Form 4 filings on record with FilingPulse; latest filed 2026-08-20.
Transaction summary — filings shown
Covers all 5 filings on record, filed 2025-06-05 to 2026-08-20. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 6 legs across 5 filings — 550 shares, $15,806 total (shares × price as filed).
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 0.
- Largest priced transaction: purchase of 200 shares @ $26.75 ($5,350) in Horizon Kinetics Holding Corp, filed 2026-08-20.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Horizon Kinetics Holding Corp (HKHC) | Chief Financial Officer | 5 | 6 legs · 550 sh · $15,806 | — | — |
Form 4 filings — Herndon Mark
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-20 | 4 | Horizon Kinetics Holding Corp (HKHC) | Purchase (P): 50 @ $26.50 · Purchase (P): 200 @ $26.75 | EDGAR |
| 2026-05-21 | 4 | Horizon Kinetics Holding Corp (HKHC) | Purchase (P): 100 @ $27.85 | EDGAR |
| 2026-03-19 | 4 | Horizon Kinetics Holding Corp (HKHC) | Purchase (P): 80 @ $33.03 | EDGAR |
| 2025-11-21 | 4 | Horizon Kinetics Holding Corp (HKHC) | Purchase (P): 100 @ $29 | EDGAR |
| 2025-06-05 | 4 | Horizon Kinetics Holding Corp (HKHC) | Purchase (P): 20 @ $40.18 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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