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JG
Insider

John Joseph Giamatteo

CEO & President, Secure Comm. · BlackBerry

John Joseph Giamatteo (CEO & President, Secure Comm.) filed 7 Form 4 reports in the trailing twelve months (0 purchases, 7 sales), most often in BlackBerry Limited (BB). The largest single filing was $3.0M of BB (272,212 sh across 3 lots, as filed), executed Jul 8. Data as of Nov 8 2026.

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Return, ttmiAverage return per filing, trailing twelve months
–
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
–
returns measure stock purchases only
Filings, ttm
7
0 buys · 7 sells
Median delay
–
measured on stock purchases
Volume, ttmiDollar value disclosed in the trailing twelve months
$7.4M
shares × price, as filed
Last traded
Oct 22
Filed Oct 22

Median ADV $259.5M across their filed names

Open performance→
Volume by month
$3.4M$1.7M$0Dec 2024Jun 2025Dec 2025Jun 2026Jan 2025 · sells $864KJul 2025 · sells $117KOct 2025 · sells $131KJan 2026 · sells $1.2MJul 2026 · sells $3.4MOct 2026 · sells $2.8M
Buys $0 Sells $8.5M

Shares × price, as filed · by filing month · past 24 months

Sectors filed on
Technology 7 filings

Sector per market data · by filing · past 12 months

Most traded names
BB BlackBerry Limited BB · 0 buys · 12 sells 12 filings
Recent filings
BBSALE BlackBerry Limited View filing → $117K
26,998 sh × $4.32
Exec Jul 2 2025
Filed Jul 3 2025 · 5:30 PM ET
BBSALE BlackBerry Limited View filing → $118K
29,402 sh × $4.00
Exec Jan 6 2025
Filed Jan 8 2025 · 5:30 PM ET
BBSALE BlackBerry Limited View filing → $173K
43,135 sh × $4.00
Exec Jan 3 2025
Filed Jan 7 2025 · 5:30 PM ET
BBSALE BlackBerry Limited View filing → $573K
155,815 sh × $3.68
Exec Jan 2 2025
Filed Jan 6 2025 · 5:30 PM ET