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RUSSELL C HOROWITZ

CIK 1054568 · Chairman · last filed 2026-07-01

RUSSELL C HOROWITZ is a Chairman who has filed 85 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing, for MCHX, was dated Jul 1, 2026. Across all open-market trades the lifetime net is −$21.8M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.8M 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

$1.78M

Companies

2

Total Filings

85

Lifetime Open-Market Net

-$21.82M

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
MCHX Chairman 996,918 $1.79 $1.78M -$12.88M 72 2026-07-01
MARCHEX INC (MCHXP) Delisted Chief Executive Officer 1,483,500 — — -$8.94M 13 2008-02-01

Recent Filings

85 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
2026-07-01 MCHX Grant (A) — $0 EDGAR
2025-12-17 MCHX Grant (A) — $0 EDGAR
2024-11-07 MCHX Grant (A) — $0 EDGAR
2023-10-02 MCHX Grant (A) +15,000 $150 EDGAR
2023-01-26 MCHX Grant (A) +51,000 $510 EDGAR
2022-12-30 MCHX Grant (A) +72,000 $720 EDGAR
2022-10-03 MCHX Grant (A) +15,000 $150 EDGAR
2022-01-03 MCHX Grant (A) +98,500 $985 EDGAR
2021-10-04 MCHX Grant (A) +15,000 $150 EDGAR
2021-01-04 MCHX Grant (A) +136,000 $1.4K EDGAR
Showing 1–10 of 85
Page 1 of 9
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.