Ellen H. Masterson
Director · INSPERITY, INC.
- 2025
- May 20, 2026
- 6
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Ellen H. Masterson 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.
- Paul J. Sarvadi - $15.50M in NSP purchases and sales in the last 12 months
- Susan M. Byrne - $1.38M in WHG purchases and sales in the last 12 months
- Brian O. Casey - $316K in WHG purchases and sales in the last 12 months
- James D. Allison - $205K in NSP purchases and sales in the last 12 months
- Adrian Helfert - $175K in WHG purchases and sales in the last 12 months
- Randall Mehl - $102K in NSP purchases and sales in the last 12 months
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Frequently asked questions
Who is Ellen H. Masterson?
Ellen H. Masterson is a corporate insider, tracked as Director of INSPERITY, INC. (NSP). InsiderAlpha holds 6 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Ellen H. Masterson last file a Form 4?
The most recent primary Form 4 on record is dated 20 May 2026, one of 6 filings going back to 2025.
Has Ellen H. Masterson been buying or selling stock?
Recorded transactions: 2 open-market purchases ($46K) and 0 open-market sales across all tracked filings.
