Filings (90d)
Other insiders active in the same stocks
Insiders who have reported open-market trades at the same companies as Russell C. Horowitz. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Edwin A. Miller - $193K in MCHX purchases and sales on record
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Frequently asked questions
Who is Russell C. Horowitz?
Russell C. Horowitz is a corporate insider, tracked as Chairman of MARCHEX INC (MCHX). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Russell C. Horowitz last file a Form 4?
The most recent primary Form 4 on record is dated 1 July 2026, one of 3 filings going back to 2024.