Insiders who reported open-market trades in the last 12 months at the companies John Joseph Giamatteo 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.
Philip S. Kurtz - $838K in BB purchases and sales in the last 12 months
Tim Foote - $696K in BB purchases and sales in the last 12 months
John Joseph Giamatteo is a corporate insider, tracked as CEO & President, Secure Comm., Director of BLACKBERRY Ltd (BB). InsiderAlpha holds 11 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 John Joseph Giamatteo submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Has John Joseph Giamatteo been buying or selling stock?
Recorded transactions: 0 open-market purchases and 10 open-market sales ($4.26M) across all tracked filings.
John Joseph Giamatteo is CEO & President, Secure Comm., Director of BLACKBERRY Ltd (BB). 11 SEC Form 4 filings on record going back to 2025, most recently on 13 October 2026. Most recent open-market trade: sold $226K of BB on 13 October 2026. Lifetime open-market sales: $4.26M.
Recent transactions
17
The latest 17 SEC Form 4 transactions reported by John Joseph Giamatteo.
InsiderAlpha's records for John Joseph Giamatteo go back to 2025: 11 primary Form 4 filings, an average of 5.5 per year. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
