Insiders who reported open-market trades in the last 12 months at the companies Stuart A. Tross 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.
Michael Castagna - $1.51M in MNKD purchases and sales in the last 12 months
David Thomson - $931K in MNKD purchases and sales in the last 12 months
Steven B. Binder - $684K in MNKD purchases and sales in the last 12 months
Sanjay R. Singh - $94K in MNKD purchases and sales in the last 12 months
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Stuart A. Tross is a corporate insider, tracked as Chief People & Workpl Officer of MANNKIND CORP (MNKD). InsiderAlpha holds 10 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 Stuart A. Tross submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Stuart A. Tross been buying or selling stock?
Recorded transactions: 0 open-market purchases and 3 open-market sales ($952K) across all tracked filings.
Stuart A. Tross is Chief People & Workpl Officer of MANNKIND CORP (MNKD). 10 SEC Form 4 filings on record going back to 2024, most recently on 18 July 2026. Most recent open-market trade: sold $298K of MNKD on 10 January 2026. Lifetime open-market sales: $952K.
Recent transactions
13
The latest 13 SEC Form 4 transactions reported by Stuart A. Tross.
InsiderAlpha's records for Stuart A. Tross go back to 2024: 10 primary Form 4 filings, an average of 3.3 per year. 2 recorded transactions carry a Rule 10b5-1 plan flag. This identifies the marked transactions as reported under a trading plan; it does not establish the plan status of unmarked transactions.
