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Westfield Capital Management

Westfield Capital Management Portfolio holdings

AUM $30.6B Turnover 33.96%
1-Year Est. Return 61.81%
This Fund
S&P 500
This Quarter Est. Return
+4.97%
1 Year Est. Return
+61.81%
3 Year Est. Return
+195.36%
5 Year Est. Return
+240.54%
10 Year Est. Return
+1,285%
AUM
$24B
AUM Growth
+$172M
Cap. Flow
-$309M
Cap. Flow %
-1.29%
Top 10 Hldgs %
29.68%
Holding
274
New
39
Increased
117
Reduced
71
Closed
33
Avg Time Held
2.3 years
Top 10 Avg Time Held
4.1 years
Top 20 Avg Time Held
4 years

Top Buys

Rank Stock Value
1
APG icon
APi Group
APG
+$128M
2
ABVX icon
Abivax
ABVX
+$110M
3
AME icon
Ametek
AME
+$105M
4
BROS icon
Dutch Bros
BROS
+$101M
5
ABBV icon
AbbVie
ABBV
+$93.8M

Top Sells

Rank Stock Value
1
TDG icon
TransDigm Group
TDG
+$264M
2
MRUS icon
Merus
MRUS
+$201M
3
FIX icon
Comfort Systems
FIX
+$152M
4
COHR icon
Coherent
COHR
+$121M
5
MNDY icon
monday.com
MNDY
+$114M

Sector Composition

Rank Sector Weight
1 Technology 29.83%
2 Industrials 21.65%
3 Healthcare 18.09%
4 Financials 10.52%
5 Consumer Discretionary 9.82%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow Held Since
NVDA icon
1
NVIDIA
NVDA
$5.17T
$1.11B 4.62%
5,951,049
-556,116
-9% -$104M
2019 Q4
24 quarters
ASND icon
2
Ascendis Pharma A/S
ASND
$14.8B
$1.11B 4.61%
5,185,696
-74,213
-1% -$15.3M
2018 Q2
30 quarters
AAPL icon
3
Apple
AAPL
$5.01T
$890M 3.71%
3,274,318
-60,227
-2% -$16.2M
2013 Q2
50 quarters
MSFT icon
4
Microsoft
MSFT
$3.93T
$784M 3.27%
1,621,219
-84,017
-5% -$42.1M
2013 Q2
50 quarters
GOOGL icon
5
Alphabet (Google) Class A
GOOGL
$4.17T
$682M 2.84%
2,178,478
-66,172
-3% -$18.9M
2015 Q4
40 quarters
FIX icon
6
Comfort Systems
FIX
$50.6B
$624M 2.6%
668,835
-164,360
-20% -$152M
2023 Q4
8 quarters
AMZN icon
7
Amazon
AMZN
$2.7T
$538M 2.24%
2,330,770
-210,959
-8% -$48.3M
2015 Q3
41 quarters
AXON icon
8
Axon Enterprise
AXON
$31.7B
$472M 1.97%
831,177
+102,025
+14% +$63.3M
2022 Q4
12 quarters
FTAI icon
9
FTAI Aviation
FTAI
$16.9B
$463M 1.93%
2,350,625
+220,384
+10% +$37.6M
2024 Q2
6 quarters
HWM icon
10
Howmet Aerospace
HWM
$88.1B
$455M 1.9%
2,219,125
+211,672
+11% +$42.1M
2025 Q1
3 quarters
META icon
11
Meta Platforms (Facebook)
META
$1.81T
$433M 1.8%
655,283
-112,374
-15% -$75M
2023 Q1
11 quarters
AVGO icon
12
Broadcom
AVGO
$1.57T
$385M 1.6%
1,112,318
-54,044
-5% -$19.3M
2018 Q4
28 quarters
VRT icon
13
Vertiv
VRT
$79.5B
$369M 1.54%
2,277,716
+30,498
+1% +$5.3M
2023 Q3
9 quarters
LLY icon
14
Eli Lilly
LLY
$1.12T
$298M 1.24%
277,549
+544
+0.2% +$520K
2022 Q2
14 quarters
TPR icon
15
Tapestry
TPR
$23.8B
$268M 1.12%
2,098,104
-352,567
-14% -$40.3M
2021 Q1
19 quarters
RVMD icon
16
Revolution Medicines
RVMD
$38.1B
$227M 0.94%
2,845,013
+331,046
+13% +$21.7M
2024 Q4
4 quarters
NOW icon
17
ServiceNow
NOW
$147B
$226M 0.94%
1,476,803
+176,793
+14% +$30.3M
2013 Q4
48 quarters
LPLA icon
18
LPL Financial
LPLA
$25.3B
$223M 0.93%
625,562
+50,100
+9% +$17.7M
2018 Q1
31 quarters
V icon
19
Visa
V
$756B
$212M 0.88%
603,926
-101,841
-14% -$34.7M
2013 Q2
50 quarters
BAC icon
20
Bank of America
BAC
$358B
$210M 0.88%
3,823,609
-37,494
-1% -$1.98M
2022 Q4
12 quarters
TSLA icon
21
Tesla
TSLA
$1.4T
$208M 0.86%
461,675
+57,455
+14% +$25.5M
2021 Q4
16 quarters
MASI icon
22
DELISTED
Masimo
MASI
$198M 0.82%
1,522,049
+102,799
+7% +$14.7M
2023 Q2
10 quarters
ARES icon
23
Ares Management
ARES
$25.5B
$186M 0.78%
1,151,200
+123,611
+12% +$19.3M
2021 Q3
17 quarters
AME icon
24
Ametek
AME
$56.9B
$185M 0.77%
900,216
+541,556
+151% +$105M
2016 Q4
36 quarters
RKLB icon
25
Rocket Lab Corp
RKLB
$32.5B
$181M 0.75%
2,592,443
+154,623
+6% +$8.86M
2024 Q4
4 quarters
1
2 3 4 5

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Westfield Capital Management's Q4 2025 Portfolio in Review

As of Q4 2025, Westfield Capital Management held 274 positions worth $24B, up 0.72% from $23.8B the previous quarter. Its ten largest holdings account for 30% of the portfolio.

Westfield Capital Management's Q4 2025 filing shows 39 new, 117 increased, 71 reduced and 33 closed positions. Its largest new stake was APi Group: 3,453,355 shares worth $132M. The largest sale was TransDigm Group, an estimated $264M.

By sector, the portfolio is most concentrated in Technology at 30% of assets, down from 31% a quarter earlier, followed by Industrials and Healthcare.

  • Westfield Capital Management's largest Q4 2025 buy was APi Group: 3,453,355 shares worth $132M.
  • Westfield Capital Management added most to Ametek in Q4 2025, an estimated $105M increase.
  • Westfield Capital Management's biggest Q4 2025 reduction was TransDigm Group, cutting an estimated $264M.
  • Westfield Capital Management fully exited Merus in Q4 2025, selling an estimated $201M.
  • Westfield Capital Management's ten largest holdings make up 30% of its $24B portfolio in Q4 2025.
  • Westfield Capital Management opened 39 new positions and closed 33 in Q4 2025.
  • Westfield Capital Management's portfolio value rose 0.72% quarter-over-quarter to $24B.

Based on Westfield Capital Management's 13F filing for Q4 2025, filed 11 Feb 2026.