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HORIZON KINETICS ASSET MANAGEMENT LLC

CIK 1056823 · last filed 2026-08-10

HORIZON KINETICS ASSET MANAGEMENT LLC is a corporate insider who has filed 1,316 SEC Form 4 insider transactions across 3 companies since 2019. The most recent filing shows the insider bought $353 of TPL on Aug 10, 2026. Across all open-market trades the lifetime net is +$30.0M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $1.28B across reported positions.

"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

$1.28B

Companies

3

Total Filings

1316

Lifetime Open-Market Net

$29.95M

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
RCG 10%+ Owner 948,540 $2.90 $2.76M $110.2K 49 2026-08-10
TPL 10%+ Owner 3,244,545 $364.97 $1.18B $38.93M 1260 2026-08-10
MIAX 10%+ Owner 2,170,898 $42.32 $91.87M -$9.08M 5 2026-05-21

Recent Filings

1,001 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-08-10 TPL Buy (P) +1 $353 EDGAR
2026-08-10 RCG Buy (P) +756 $2.3K EDGAR
2026-08-07 RCG Buy (P) +756 $2.2K EDGAR
2026-08-07 TPL Buy (P) +1 $356 EDGAR
2026-08-06 TPL Buy (P) +1 $386 EDGAR
2026-08-06 RCG Buy (P) +756 $2.2K EDGAR
2026-08-05 TPL Buy (P) +1 $404 EDGAR
2026-08-05 RCG Buy (P) +756 $2.3K EDGAR
2026-08-04 TPL Buy (P) +1 $393 EDGAR
2026-08-04 RCG Buy (P) +756 $2.3K EDGAR
Showing 1–10 of 1001
Page 1 of 101
Form 4 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.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.