Matthew B. Klein owns 0.46% of PTC Therapeutics
383,868 shares as of the August 4, 2026 filing, worth $22.7M at the latest close.
PTCT · $4.9B market capGet an email when Matthew B. Klein’s stake moves.
Free.
The stake
0.46%
worth $22.7M at the latest close
Stake rank
#1,161
by dollar value of the stake
Last sale
76 days ago
Aug 4, 2026
Last buy
None
no purchases since 2021
Matthew B. Klein owns 0.46% of PTC THERAPEUTICS, INC.: 383,868 of 83,460,802 shares, worth about $22.7M at the 2026-10-16 close. The stake has moved from 0.02% in 2020 to 0.46% on 2026-08-04, across 25 sales and 0 purchases that moved it since 2016. The last trade that moved it was a planned sale of $705,722 on 2026-08-04.
How the stake is held
as of the Aug 4, 2026 filing
SHARES
OF THE STAKE
COMMON STOCK · stated Aug 4, 2026 · Form 4 ↗
HELD DIRECTLY
383,868
100.0%
THE STAKE
383,868
0.46%