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WESTFIELD CAPITAL MANAGEMENT CO LP

Position in AMGN — Amgen Inc

CIK 1177719 BOSTON, MA

Position in AMGN

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$6,173,059
+$173,313 QoQ
Shares Held
17,047
-0.0% QoQ
Ownership
0.003%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#739
of 3,149 holders
Holding Since
Mar 2026
2 quarters on record
Voting authority Sole 72% Shared 0% None 28%

Common Shares in AMGN Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - General

Healthcare · as of Jun 30, 2026

WESTFIELD CAPITAL MANAGEMENT CO LP holds $691,252,397 across 8 Drug Manufacturers - General names. AMGN ranks #5 (0.9% of the industry book) .

# Ticker Company Shares Value (USD) Open
5 AMGN
Amgen Inc
This page
17,047 $6,173,059

All Filings in AMGN

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2 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $6,173,059 17,047
2026-03-31 $5,999,746 17,052