Insiders who have reported open-market trades at the same companies as James J. Hinnendael. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
Jerry M. Bauer - $416K in MRTN purchases and sales on record
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James J. Hinnendael is a corporate insider, tracked as EVP & Chief Financial Officer of MARTEN TRANSPORT LTD (MRTN). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did James J. Hinnendael last file a Form 4?
The most recent primary Form 4 on record is dated 7 May 2026, one of 2 filings going back to 2026.
InsiderAlpha's records for James J. Hinnendael go back to 2026: 2 primary Form 4 filings, an average of 2.0 per year. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
