HORIZON KINETICS ASSET MANAGEMENT LLC

CIK 1056823 · last filed 2026-06-12

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$1.38B

Companies

3

Total Filings

1239

Lifetime Open-Market Net

$29.85M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
TPL 10%+ Owner 3,393,731 $378.91 $1.29B $38.91M 1222 2026-06-12
RCG 10%+ Owner 919,056 $2.75 $2.52M $25.0K 11 2026-06-12
MIAX 10%+ Owner 2,170,898 $43.29 $93.98M -$9.08M 5 2026-05-21

Recent Filings · Page 18 of 100

1,000 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2025-10-24 TPL Buy (P) +1 $939 EDGAR
2025-10-23 TPL Buy (P) +1 $936 EDGAR
2025-10-22 TPL Buy (P) +1 $939 EDGAR
2025-10-21 TPL Buy (P) +1 $945 EDGAR
2025-10-20 TPL Buy (P) +1 $929 EDGAR
2025-10-17 TPL Buy (P) +1 $935 EDGAR
2025-10-16 TPL Buy (P) +1 $924 EDGAR
2025-10-15 TPL Buy (P) +1 $883 EDGAR
2025-10-14 TPL Buy (P) +2 $1.8K EDGAR
2025-10-10 TPL Buy (P) +1 $936 EDGAR
Showing 171180 of 1000
Page 18 of 100
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.