Robert I. Blum owns 0.20% of Cytokinetics
282,710 shares as of the October 12, 2026 filing, worth $17.5M at the latest close.
CYTK · $8.6B market capGet an email when Robert I. Blum’s stake moves.
Free.
The stake
0.20%
worth $17.5M at the latest close
Stake rank
#1,332
by dollar value of the stake
Last sale
34 days ago
Sep 15, 2026
Last buy
None
no purchases since 2017
Robert I. Blum owns 0.20% of CYTOKINETICS INC: 282,710 of 139,023,418 shares, worth about $17.5M at the 2026-10-16 close. The stake has moved from 0.02% in 2016 to 0.20% on 2026-10-12, across 75 sales and 0 purchases that moved it since 2016. The last trade that moved it was a planned sale of $7.3M on 2026-09-15.
How the stake is held
as of the Oct 12, 2026 filing
SHARES
OF THE STAKE
COMMON STOCK · stated Oct 12, 2026 · Form 4 ↗
HELD DIRECTLY
278,544
98.5%
HELD INDIRECTLY · 2 VEHICLES
4,166
1.5%
by Trust 1. Beneficial Ownership disclaimed
2,083
0.7%
by Trust 2. Beneficial Ownership Disclaimed
2,083
0.7%
THE STAKE
282,710
0.20%