Summary
Updated Aug 31, 2026
William Landman is Director of Zeta Global Holdings Corp. (ZETA). 11 SEC Form 4 filings on record going back to 2024, most recently on 14 August 2026. Most recent open-market trade: bought $149K of ZETA on 18 November 2024. Lifetime open-market purchases: $149K.
Recent Transactions
13Every recent SEC Form 4 transaction William Landman has reported, most recent first.
Trading Pattern
InsiderAlpha's records for William Landman go back to 2024: 11 primary Form 4 filings, an average of 3.7 per year. The typical open-market purchase is $149K (1 buy totaling $149K). The largest single buy on record is $149K of ZETA in 2024. 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.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies William Landman 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.
- Jeanine Silberblatt - $149K of ZETA open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is William Landman?
William Landman is a corporate insider, tracked as Director of Zeta Global Holdings Corp. (ZETA). InsiderAlpha holds 11 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has William Landman submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Has William Landman been buying or selling stock?
Recorded transactions: 1 open-market purchase ($149K) and 0 open-market sales across all tracked filings.
Where can I see all of William Landman's SEC 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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