John Giamatteo owns 0.09% of Blackberry
542,494 shares as of the October 22, 2026 filing, worth $5M at the latest close.
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Free.
The stake
0.09%
worth $5M at the latest close
Stake rank
#2,129
by dollar value of the stake
Last sale
5 days ago
Oct 22, 2026
Last buy
None
no purchases since 2023
John Giamatteo owns 0.09% of BLACKBERRY Ltd: 542,494 of 587,032,279 shares, worth about $5M at the 2026-10-26 close. The stake has moved from 0.00% in 2021 to 0.09% on 2026-10-22, across 16 sales and 0 purchases that moved it since 2016. The last trade that moved it was a discretionary sale of $2.3M on 2026-10-22.
How the stake is held
as of the Oct 22, 2026 filing
SHARES
OF THE STAKE
COMMON STOCK · stated Oct 22, 2026 · Form 4 ↗
HELD DIRECTLY
542,494
100.0%
THE STAKE
542,494
0.09%