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WESTFIELD CAPITAL MANAGEMENT CO LP

Position in ENTG — Entegris Inc

CIK 1177719 BOSTON, MA

Position in ENTG

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$62,043,786
+$18,467,320 QoQ
Shares Held
344,956
-7.2% QoQ
Ownership
0.226%
of shares outstanding
% of Portfolio
0.20%
of 13F equity value
Holder Rank
#70
of 740 holders
Holding Since
Dec 2022
5 quarters on record
Voting authority Sole 81% Shared 0% None 19%

Common Shares in ENTG Over Time

Shares Held

Position Value (USD)

Position in Semiconductor Equipment & Materials

Technology · as of Jun 30, 2026

WESTFIELD CAPITAL MANAGEMENT CO LP holds $628,046,750 across 6 Semiconductor Equipment & Materials names. ENTG ranks #6 (9.9% of the industry book) .

# Ticker Company Shares Value (USD) Open
6 ENTG
Entegris Inc
This page
344,956 $62,043,786

All Filings in ENTG

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5 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $62,043,786 344,956
2026-03-31 $43,576,466 371,686
2025-09-30 $42,572,282 460,440
2025-06-30 $44,009,737 545,688
2022-12-31 $32,146,052 490,106