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Granahan Investment Management, LLC

Position in CYTK — Cytokinetics Inc

CIK 1026710 WALTHAM, MA

Position in CYTK

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$3,428,641
-$1,347,461 QoQ
Shares Held
40,247
-44.5% QoQ
Ownership
0.029%
of shares outstanding
% of Portfolio
0.12%
of 13F equity value
Holder Rank
#181
of 477 holders
Holding Since
Jun 2024
6 quarters on record
Voting authority Sole 90% Shared 0% None 10%

Common Shares in CYTK Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

Granahan Investment Management, LLC holds $227,093,647 across 25 Biotechnology names. CYTK ranks #24 (1.5% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in CYTK

Export CSV
6 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $3,428,641 40,247
2026-03-31 $4,776,102 72,464
2025-12-31 $5,217,968 82,121
2025-09-30 $2,943,108 53,550
2024-09-30 $5,752,929 108,957
2024-06-30 $7,416,050 136,878