Stephen M. Mason
CEO, GMPD Segment · CARDINAL HEALTH INC
IndividualSelling only
- 2025
- Aug 20, 2026
- 6
Filings (90d)
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Stephen M. Mason 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.
- Jason M. Hollar - $29.38M in CAH purchases and sales in the last 12 months
- Aaron E. Alt - $10.45M in CAH purchases and sales in the last 12 months
- Jessica L. Mayer - $6.95M in CAH purchases and sales in the last 12 months
- Michelle D. Greene - $3.37M in CAH purchases and sales in the last 12 months
- Deborah Weitzman - $1.73M in CAH purchases and sales in the last 12 months
- Patricia Hemingway Hall - $919K in CAH purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Frequently asked questions
Who is Stephen M. Mason?
Stephen M. Mason is a corporate insider, tracked as CEO, GMPD Segment of CARDINAL HEALTH INC (CAH). InsiderAlpha holds 6 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Stephen M. Mason submitted recently?
3 primary Form 4 filings in the last 90 days, covering 1 company.
Has Stephen M. Mason been buying or selling stock?
Recorded transactions: 0 open-market purchases and 7 open-market sales ($14.46M) across all tracked filings.
