Insiders / Harrington Robert Arthur

Harrington Robert Arthur

CIK 1923988personinsider
Companies
1
First seen
Jan 16, 2026
Last activity
May 27, 2026

Companies

1View all →
CompanyRoleShares heldPeak heldTradesLatest
Cytokinetics Inc · CYTKDirector21,78121,7814—

All securities held

2 positions · latest reported per filing
CompanySecuritySharesAs of
Cytokinetics IncCommon Stock21,781May 27, 2026
Cytokinetics IncNon-Qualified Stock Option (Right to Buy)Derivative4,301May 27, 2026

Activity

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InsidersInstitutions
This person's insider trades (Form 4), across every company.
DateActionCompanyValueShares ΔPosition afterImpact
Jan 15, 2026GrantCYTK
Cytokinetics Inc
Common Stock
$12.5K+197
+1.06%
18,739
0.01% of shares
low
Apr 15, 2026GrantCYTK
Cytokinetics Inc
Common Stock
$12.5K+191
+1.02%
18,930
0.01% of shares
low
May 27, 2026GrantCYTK
Cytokinetics Inc
Common Stock
$0+3K
+15.06%
21,781
0.02% of shares
low
May 27, 2026GrantCYTK
Cytokinetics Inc
Non-Qualified Stock Option (Right to Buy)
—+4K
4,301
<0.01% of shares
low