John Giamatteo owns 0.14% of Blackberry
792,494 shares as of the October 9, 2026 filing, worth $6.4M at the latest close.
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Free.
The stake
0.14%
worth $6.4M at the latest close
Stake rank
#1,999
by dollar value of the stake
Last sale
10 days ago
Oct 9, 2026
Last buy
None
no purchases since 2023
John Giamatteo owns 0.14% of BLACKBERRY Ltd: 792,494 of 587,032,279 shares, worth about $6.4M at the 2026-10-16 close. The stake has moved from 0.00% in 2021 to 0.14% on 2026-10-09, across 15 sales and 0 purchases that moved it since 2016. The last trade that moved it was a discretionary sale of $225,753 on 2026-10-09.
How the stake is held
as of the Oct 9, 2026 filing
SHARES
OF THE STAKE
COMMON STOCK · stated Oct 9, 2026 · Form 4 ↗
HELD DIRECTLY
792,494
100.0%
THE STAKE
792,494
0.14%