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GW&K Investment Management, LLC

Position in CYTK — Cytokinetics Inc

CIK 1082917 BOSTON, MA

Position in CYTK

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$78,043,155
+$45,442,818 QoQ
Shares Held
916,107
+85.2% QoQ
Ownership
0.659%
of shares outstanding
% of Portfolio
0.62%
of 13F equity value
Holder Rank
#38
of 480 holders
Holding Since
Sep 2025
4 quarters on record
Voting authority Sole 94% Shared 6% None 0%

Common Shares in CYTK Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

GW&K Investment Management, LLC holds $876,997,841 across 27 Biotechnology names. CYTK ranks #4 (8.9% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 CYTK
Cytokinetics Inc
This page
916,107 $78,043,155

All Filings in CYTK

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4 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $78,043,155 916,107
2026-03-31 $32,600,337 494,619
2025-12-31 $30,013,944 472,363
2025-09-30 $9,929,623 180,670