WESTFIELD CAPITAL MANAGEMENT CO LP

CIK
0001177719
City
BOSTON
State / Country
MA

Top Portfolio Positions

215 positions · $22,055,187,468 total · as of Dec 31, 2025
Ticker Company Shares Value (USD) % of Portfolio
NVDA
Nvidia Corp
Technology
5,951,049 $1,109,870,638 5.03%
ASND
Ascendis Pharma A/S
Healthcare
5,185,696 $1,105,797,815 5.01%
AAPL
Apple Inc.
Technology
3,274,318 $890,156,091 4.04%
MSFT
Microsoft Corp
Technology
1,621,219 $784,053,932 3.55%
GOOGL
Alphabet Inc.
Communication Services
2,178,478 $681,863,614 3.09%
AMZN
Amazon Com Inc
Consumer Cyclical
2,330,770 $537,988,331 2.44%
AXON
Axon Enterprise, Inc.
Industrials
831,177 $472,050,353 2.14%
FTAI
FTAI Aviation Ltd.
Industrials
2,350,625 $462,720,531 2.10%
HWM
Howmet Aerospace Inc.
Industrials
2,219,125 $454,965,007 2.06%
META
Meta Platforms, Inc.
Communication Services
655,283 $432,545,755 1.96%

Portfolio Trend

35 quarters · across all stocks

Holdings in BLD

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Shares Held

Position Value (USD)

11 of 11 shown
Report Date Value (USD) Shares
2025-12-31 $106,571,602 255,451
2025-09-30 $87,954,834 225,029
2022-03-31 $63,566,855 350,443
2021-12-31 $113,426,325 411,099
2021-09-30 $91,066,513 444,639
2021-06-30 $78,122,704 394,998
2021-03-31 $119,276,667 569,530
2020-12-31 $134,961,565 733,168
2020-09-30 $147,487,425 864,066
2020-06-30 $110,772,729 973,655
2020-03-31 $66,264,134 924,960