HKHC insider transaction filings
Horizon Kinetics Holding Corp — 50 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2026-09-22. Screen HKHC transaction legs live →
Insider transaction summary — last 90 days
2026-06-24 to 2026-09-22, from the filings listed below: 9 Form 4 filings. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 10 legs across 9 filings by 8 insiders — 3,940 shares, $105,264 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 2,000 shares @ $27.00 ($54,000) by Rosenthal Brent D, filed 2026-08-25.
By insider — same window
Open-market purchase/sale legs on non-derivative securities, grouped by the filing's reporting owner(s); joint filings appear once. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Insider | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|
| Rosenthal Brent D — Director | 1 | 1 leg · 2,000 sh · $54,000 | — | — |
| Brennan Alice C — Director | 5 | 5 legs · 1,000 sh · $26,348 | — | — |
| Roller Daniel J — Director & Maran Partners Fund, LP & Maran Partners GP, LLC & Maran Capital Management, LLC | 1 | 1 leg · 500 sh · $13,250 | — | — |
| Herndon Mark — Chief Financial Officer | 1 | 2 legs · 250 sh · $6,675 | — | — |
| Nagelberg Allison — Director | 1 | 1 leg · 190 sh · $4,991 | — | — |
Recent Form 4 filings — Horizon Kinetics Holding Corp
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-22 | 4 | Nagelberg Allison — Director | Purchase (P): 190 @ $26.27 | EDGAR |
| 2026-09-03 | 4 | Brennan Alice C — Director | Purchase (P): 200 @ $25.92 | EDGAR |
| 2026-08-31 | 4 | Brennan Alice C — Director | Purchase (P): 200 @ $26.20 | EDGAR |
| 2026-08-28 | 4 | Brennan Alice C — Director | Purchase (P): 200 @ $26 | EDGAR |
| 2026-08-27 | 4 | Roller Daniel J — Director Maran Partners Fund, LP Maran Partners GP, LLC Maran Capital Management, LLC | Purchase (P): 500 @ $26.50 | EDGAR |
| 2026-08-26 | 4 | Brennan Alice C — Director | Purchase (P): 200 @ $26.75 | EDGAR |
| 2026-08-25 | 4 | Brennan Alice C — Director | Purchase (P): 200 @ $26.87 | EDGAR |
| 2026-08-25 | 4 | Rosenthal Brent D — Director | Purchase (P): 2,000 @ $27 | EDGAR |
| 2026-08-20 | 4 | Herndon Mark — Chief Financial Officer | Purchase (P): 50 @ $26.50 · Purchase (P): 200 @ $26.75 | EDGAR |
| 2026-05-21 | 4 | Herndon Mark — Chief Financial Officer | Purchase (P): 100 @ $27.85 | EDGAR |
| 2026-05-21 | 4 | Rosenthal Brent D — Director | Purchase (P): 700 @ $27.85 | EDGAR |
| 2026-03-24 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 10 @ $34.60 · Purchase (P): 25 @ $34.60 · Purchase (P): 18 @ $34.60 | EDGAR |
| 2026-03-24 | 4/A | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 10 @ $34.60 · Purchase (P): 25 @ $34.60 · Purchase (P): 18 @ $34.60 | EDGAR |
| 2026-03-23 | 4 | Nagelberg Allison — Director | Purchase (P): 150 @ $33.96 | EDGAR |
| 2026-03-20 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 46 @ $34.06 · Purchase (P): 25 @ $34.06 · Purchase (P): 18 @ $34.06 | EDGAR |
| 2026-03-19 | 4 | Herndon Mark — Chief Financial Officer | Purchase (P): 80 @ $33.03 | EDGAR |
| 2026-03-19 | 4 | Rosenthal Brent D — Director | Purchase (P): 750 @ $33.05 | EDGAR |
| 2026-03-19 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 10 @ $34 · Purchase (P): 9 @ $34 · Purchase (P): 8 @ $34 | EDGAR |
| 2025-12-23 | 4 | Maran Partners Fund, LP Roller Daniel J — Director Maran Partners GP, LLC Maran SPV, LP Maran Capital Management, LLC Maran SPV GP, LLC | Other (J): 25,360 @ $0 · Other (J): 42,000 @ $0 | EDGAR |
| 2025-12-11 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 12 @ $27 · Purchase (P): 6 @ $27 · Purchase (P): 4 @ $27 | EDGAR |
| 2025-12-10 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 12 @ $27 · Purchase (P): 6 @ $27 · Purchase (P): 4 @ $27 | EDGAR |
| 2025-12-09 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 12 @ $26.73 · Purchase (P): 6 @ $26.73 · Purchase (P): 4 @ $26.73 | EDGAR |
| 2025-12-08 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 12 @ $27.75 · Purchase (P): 6 @ $27.75 · Purchase (P): 4 @ $27.75 | EDGAR |
| 2025-12-05 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 12 @ $27.75 · Purchase (P): 6 @ $27.75 · Purchase (P): 4 @ $27.75 | EDGAR |
| 2025-12-04 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 12 @ $27 · Purchase (P): 6 @ $27 · Purchase (P): 4 @ $27 | EDGAR |
| 2025-12-03 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 12 @ $27.23 · Purchase (P): 6 @ $27.23 · Purchase (P): 4 @ $27.23 | EDGAR |
| 2025-12-02 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 12 @ $27 · Purchase (P): 6 @ $27 · Purchase (P): 4 @ $27 | EDGAR |
| 2025-12-01 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 12 @ $27.23 · Purchase (P): 6 @ $27.23 · Purchase (P): 4 @ $27.23 | EDGAR |
| 2025-11-28 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 12 @ $27.23 · Purchase (P): 8 @ $27.23 · Purchase (P): 4 @ $27.23 | EDGAR |
| 2025-11-26 | 4 | Rosenthal Brent D — Director | Purchase (P): 300 @ $27.28 | EDGAR |
| 2025-11-26 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 12 @ $27 · Purchase (P): 8 @ $27 · Purchase (P): 4 @ $27 | EDGAR |
| 2025-11-25 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 12 @ $28 · Purchase (P): 8 @ $28 · Purchase (P): 4 @ $28 | EDGAR |
| 2025-11-24 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 12 @ $28.25 · Purchase (P): 9 @ $28.25 · Purchase (P): 4 @ $28.25 | EDGAR |
| 2025-11-21 | 4 | Herndon Mark — Chief Financial Officer | Purchase (P): 100 @ $29 | EDGAR |
| 2025-11-21 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 11 @ $27.50 · Purchase (P): 9 @ $27.50 · Purchase (P): 4 @ $27.50 | EDGAR |
| 2025-10-15 | 4 | Arndt David M — President, Cons Prod Div. | Holdings only — no transactions reported | EDGAR |
| 2025-09-10 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 8 @ $38.30 · Purchase (P): 7 @ $38.30 · Purchase (P): 5 @ $38.30 · Purchase (P): 4 @ $38.30 | EDGAR |
| 2025-09-09 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 10 @ $38.85 · Purchase (P): 6 @ $38.85 · Purchase (P): 5 @ $38.85 · Purchase (P): 4 @ $38.85 | EDGAR |
| 2025-09-08 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 8 @ $39 · Purchase (P): 6 @ $39 · Purchase (P): 5 @ $39 · Purchase (P): 4 @ $39 | EDGAR |
| 2025-09-05 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 8 @ $39.45 · Purchase (P): 6 @ $39.45 · Purchase (P): 5 @ $39.45 · Purchase (P): 4 @ $39.45 | EDGAR |
| 2025-09-04 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 8 @ $40.20 · Purchase (P): 6 @ $40.20 · Purchase (P): 5 @ $40.20 · Purchase (P): 4 @ $40.20 | EDGAR |
| 2025-09-03 | 4 | Rosenthal Brent D — Director | Purchase (P): 300 @ $38 | EDGAR |
| 2025-09-03 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 8 @ $38 · Purchase (P): 6 @ $38 · Purchase (P): 5 @ $38 · Purchase (P): 4 @ $38 | EDGAR |
| 2025-09-02 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 8 @ $38 · Purchase (P): 6 @ $38 · Purchase (P): 5 @ $38 · Purchase (P): 2 @ $38 | EDGAR |
| 2025-09-02 | 4/A | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 8 @ $38 · Purchase (P): 6 @ $38 · Purchase (P): 5 @ $38 · Purchase (P): 2 @ $38 | EDGAR |
| 2025-09-02 | 4/A | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 8 @ $38 · Purchase (P): 6 @ $38 · Purchase (P): 5 @ $38 · Purchase (P): 2 @ $38 | EDGAR |
| 2025-09-02 | 4/A | STAHL MURRAY — CEO and CIO, Director, 10% owner Horizon Common Inc — 10% owner | Purchase (P): 8 @ $38 · Purchase (P): 6 @ $38 · Purchase (P): 5 @ $38 · Purchase (P): 2 @ $38 | EDGAR |
| 2025-08-29 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner | Purchase (P): 8 @ $38 · Purchase (P): 6 @ $38 · Purchase (P): 5 @ $38 · Purchase (P): 2 @ $38 | EDGAR |
| 2025-08-28 | 4 | Brennan Alice C — Director | Purchase (P): 100 @ $38 | EDGAR |
| 2025-08-28 | 4 | STAHL MURRAY — CEO and CIO, Director, 10% owner | Purchase (P): 8 @ $38 · Purchase (P): 6 @ $38 · Purchase (P): 5 @ $38 · Purchase (P): 2 @ $38 | EDGAR |
Recent 8-K events — Horizon Kinetics Holding Corp
| Filed | Form | Items reported | Source |
|---|---|---|---|
| 2026-08-13 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-15 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-11 | 8-K | 1.01 — Entry into a Material Definitive Agreement | EDGAR |
| 2026-04-08 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-03-12 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-11-13 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-08-12 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-06-20 | 8-K | 5.07 — Submission of Matters to a Vote of Security Holders | EDGAR |
| 2025-05-14 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-04-29 | 8-K | 4.01 — Changes in Registrant's Certifying Accountant 9.01 — Financial Statements and Exhibits | EDGAR |
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