John Joseph Giamatteo
CEO & President, Cybersecurity at BlackBerry Limited
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 3 years
- Director since
- 2024
3 years of board service in total across 1 board, counting each seat separately. Longest: BlackBerry Limited, 2 years.
Chief executive roles
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
BlackBerry Limited June 25, 202695.7%
-
BlackBerry Limited June 25, 202595.4%
-
BlackBerry Limited June 25, 202493.9%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Oct 22, 2026 | BlackBerry Limited | Open-market sale | −99,000 | $8.74 | $865,260 |
| Oct 21, 2026 | BlackBerry Limited | Open-market sale | −151,000 | $9.40 | $1,419,400 |
| Oct 9, 2026 | BlackBerry Limited | Option exercise | +61,082 | — | — |
| Oct 9, 2026 | BlackBerry Limited | Open-market sale | −27,004 | $8.36 | $225,753 |
| Oct 2, 2026 | BlackBerry Limited | Option exercise | +66,372 | — | — |
| Oct 2, 2026 | BlackBerry Limited | Open-market sale | −29,272 | $9.20 | $269,302 |
| Jul 9, 2026 | BlackBerry Limited | Open-market sale | −4,800 | $11.27 | $54,096 |
| Jul 9, 2026 | BlackBerry Limited | Open-market sale | −120,200 | $11.45 | $1,376,290 |
| Jul 9, 2026 | BlackBerry Limited | Option exercise | +61,082 | — | — |
| Jul 9, 2026 | BlackBerry Limited | Open-market sale | −27,012 | $10.92 | $294,971 |
| Jul 8, 2026 | BlackBerry Limited | Open-market sale | −125,000 | $11.00 | $1,375,000 |
| Jul 2, 2026 | BlackBerry Limited | Option exercise | +66,372 | — | — |
| Jul 2, 2026 | BlackBerry Limited | Open-market sale | −28,272 | $11.22 | $317,212 |
| Apr 2, 2026 | BlackBerry Limited | Option exercise | +66,372 | — | — |
| Apr 2, 2026 | BlackBerry Limited | Open-market sale | −27,066 | $3.56 | $96,355 |
Questions about John Joseph Giamatteo
What boards is John Joseph Giamatteo on?
John Joseph Giamatteo sits on the board of BlackBerry Limited.
What company is John Joseph Giamatteo the CEO of?
John Joseph Giamatteo is CEO & President, Cybersecurity of BlackBerry Limited.
How long has John Joseph Giamatteo served on boards?
Our records show at least 3 years of board service across 1 board, the earliest from 2024.
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