Updated Jul 16, 2026
GIAMATTEO JOHN JOSEPH has filed 2 SEC Form 4 filings across 1 company in the last 90 days — selling. Lifetime open-market sales: $3.76M.
John Joseph Giamatteo is a corporate executive known for his roles at BlackBerry Ltd, where he has served as Director and CEO. He has a background in cybersecurity and has been involved in the company's transition from hardware to software solutions.
| Role | CEO & President, Secure Comm., Director |
|---|---|
| Notability | 50/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-10 | BB | BLACKBERRY Ltd | S — Open-market sale | 27.0K | $10.92 | $295K |
| 2026-07-10 | BB | BLACKBERRY Ltd | M — Option exercise | 61.1K | — | |
| 2026-07-10 | BB | BLACKBERRY Ltd | S — Open-market sale | 120.2K | $11.45 | $1.38M |
| 2026-07-10 | BB | BLACKBERRY Ltd | S — Open-market sale | 4.8K | $11.27 | $54K |
| 2026-07-10 | BB | BLACKBERRY Ltd | S — Open-market sale | 125.0K | $11.00 | $1.38M |
| 2026-07-06 | BB | BLACKBERRY Ltd | S — Open-market sale | 28.3K | $11.22 | $317K |
| 2026-07-06 | BB | BLACKBERRY Ltd | M — Option exercise | 66.4K | — | |
| 2026-04-07 | BB | BLACKBERRY Ltd | S — Open-market sale | 27.1K | $3.56 | $96K |
| 2026-04-07 | BB | BLACKBERRY Ltd | M — Option exercise | 66.4K | — | |
| 2025-10-02 | BB | BLACKBERRY Ltd | S — Open-market sale | 28.3K | $4.62 | $131K |
| 2025-10-02 | BB | BLACKBERRY Ltd | M — Option exercise | 66.4K | — | |
| 2025-07-02 | BB | BLACKBERRY Ltd | S — Open-market sale | 27.0K | $4.32 | $117K |
| 2025-07-02 | BB | BLACKBERRY Ltd | M — Option exercise | 66.4K | — |
John Joseph Giamatteo is a corporate executive known for his roles at BlackBerry Ltd, where he has served as Director and CEO. He has a background in cybersecurity and has been involved in the company's transition from hardware to software solutions.…
2 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 8 open-market sales ($3.76M) across all tracked 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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