BLUM ROBERT I

PrivateCIK: 1288859
Location

SOUTH SAN FRANCISCO, CA

BLUM ROBERT I (President & CEO) exercised options at CYTOKINETICS INC

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 2 exercises
InsiderBLUM ROBERT ICIK 1288859
IssuerCYTOKINETICS INCCIK 1061983
DirectorOfficer· President & CEO
Since Jul 2018
-30.43K
Net shares
Net seller
$2.07M
Total sold
0
Open market trades
0B · 0S
5
Total transactions
71.23K acquired · 101.66K disposed
Non-Derivative Transactions3

Common Stock

Direct
M · Option Exercise

Shares

+54.73K

Price / share

$6.67

Trade value

$365.03K

% of position

15.6%
12/22/2025
350.20K404.93K

Common Stock

Direct
F · Tax Withholding

Shares

30.43K

Price / share

$68.18

Trade value

$2.07M

% of position

7.5%
12/22/2025
404.93K374.50K

Common Stock

Direct
M · Option Exercise

Shares

+16.51K

Price / share

$6.67

Trade value

$110.10K

% of position

4.4%
12/22/2025
374.50K391.01K
Total

Net shares

+40.81K

Net value

-$1.60M

Derivative Transactions2

Non-Qualified Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

54.73K shares

Shares

54.73K

Strike price

6.67

Held after

0.00

Exercisable

12/22/2025

Incentive Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

16.51K shares

Shares

16.51K

Strike price

6.67

Held after

0.00

Exercisable

12/22/2025
Non-Derivative Holdings (Post-Transaction)2

Common Stock

Indirect
Shares owned2.08K

Common Stock

Indirect
Shares owned2.08K
Total
4.17K indirect4.17K
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
BLUM ROBERT I — Insider Transaction (Form 4) Filed Dec 23, 2025 | Finecho