Robert H. Niehaus is a corporate insider at Zeta Global Holdings Corp. (ZETA). Niehaus has also held reporting roles at Iridium Communications Inc. (IRDM). Niehaus has reported 15 insider filings with the SEC since 2024. The most recent filing was in July 2026.
Every role Robert H. Niehaus has reported on a Form 4, reconstructed from the filings themselves. Reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
Iridium Communications Inc. (IRDM)2 filingsZeta Global Holdings Corp. (ZETA)1 filingUpdated Aug 30, 2026
Robert H. Niehaus is Director of Iridium Communications Inc. (IRDM). 14 SEC Form 4 filings on record going back to 2024, most recently on 19 August 2026. Most recent open-market trade: bought $525K of IRDM on 29 October 2025. Lifetime open-market purchases: $525K. Lifetime open-market sales: $1.13M.
Every recent SEC Form 4 transaction Robert H. Niehaus has reported, most recent first.
InsiderAlpha's records for Robert H. Niehaus go back to 2024: 14 primary Form 4 filings, an average of 4.7 per year. The typical open-market purchase is $525K (1 buy totaling $525K). The largest single buy on record is $525K of IRDM in 2025. Sales side: 1 recorded sale totaling $1.13M, so the filing history runs sell-heavy by dollar value. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Insiders who reported open-market trades in the last 12 months at the companies Robert H. Niehaus files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Robert H. Niehaus is a corporate insider, tracked as Director of Iridium Communications Inc. (IRDM). InsiderAlpha holds 14 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
3 primary Form 4 filings in the last 90 days, covering 2 companies.
Recorded transactions: 1 open-market purchase ($525K) and 1 open-market sale ($1.13M) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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$IRDM Iridium Communications Inc.378 shares @ $0.00-