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Westfield Capital Management

Westfield Capital Management Portfolio holdings

AUM $23.8B
1-Year Est. Return 49.45%
This Fund
S&P 500
This Quarter Est. Return
+4.97%
1 Year Est. Return
+49.45%
3 Year Est. Return
+148.08%
5 Year Est. Return
+180.9%
10 Year Est. Return
+972.69%
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

Top Buys

Rank Stock Value
1
APG icon
APi Group
APG
+$128M
2
ABVX
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
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 29.89%
2 Industrials 21.65%
3 Healthcare 18.09%
4 Financials 10.52%
5 Consumer Discretionary 9.76%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
NVDA icon
1
NVIDIA
NVDA
$5.42T
$1.11B 4.62%
5,951,049
-556,116
-9% -$104M
ASND icon
2
Ascendis Pharma A/S
ASND
$16.8B
$1.11B 4.61%
5,185,696
-74,213
-1% -$15.3M
AAPL icon
3
Apple
AAPL
$4.57T
$890M 3.71%
3,274,318
-60,227
-2% -$16.2M
MSFT icon
4
Microsoft
MSFT
$3.71T
$784M 3.27%
1,621,219
-84,017
-5% -$42.1M
GOOGL icon
5
Alphabet (Google) Class A
GOOGL
$4.33T
$682M 2.84%
2,178,478
-66,172
-3% -$18.9M
FIX icon
6
Comfort Systems
FIX
$59.6B
$624M 2.6%
668,835
-164,360
-20% -$152M
AMZN icon
7
Amazon
AMZN
$2.96T
$538M 2.24%
2,330,770
-210,959
-8% -$48.3M
AXON
8
Axon Enterprise
AXON
$46.4B
$472M 1.97%
831,177
+102,025
+14% +$63.3M
FTAI icon
9
FTAI Aviation
FTAI
$22.2B
$463M 1.93%
2,350,625
+220,384
+10% +$37.6M
HWM icon
10
Howmet Aerospace
HWM
$112B
$455M 1.9%
2,219,125
+211,672
+11% +$42.1M
META icon
11
Meta Platforms (Facebook)
META
$1.51T
$433M 1.8%
655,283
-112,374
-15% -$75M
AVGO icon
12
Broadcom
AVGO
$2.04T
$385M 1.6%
1,112,318
-54,044
-5% -$19.3M
VRT icon
13
Vertiv
VRT
$105B
$369M 1.54%
2,277,716
+30,498
+1% +$5.3M
LLY icon
14
Eli Lilly
LLY
$1.06T
$298M 1.24%
277,549
+544
+0.2% +$520K
TPR icon
15
Tapestry
TPR
$32.8B
$268M 1.12%
2,098,104
-352,567
-14% -$40.3M
RVMD icon
16
Revolution Medicines
RVMD
$44B
$227M 0.94%
2,845,013
+331,046
+13% +$21.7M
NOW icon
17
ServiceNow
NOW
$129B
$226M 0.94%
1,476,803
+176,793
+14% +$30.3M
LPLA icon
18
LPL Financial
LPLA
$28.6B
$223M 0.93%
625,562
+50,100
+9% +$17.7M
V icon
19
Visa
V
$677B
$212M 0.88%
603,926
-101,841
-14% -$34.7M
BAC icon
20
Bank of America
BAC
$442B
$210M 0.88%
3,823,609
-37,494
-1% -$1.98M
TSLA icon
21
Tesla
TSLA
$1.3T
$208M 0.86%
461,675
+57,455
+14% +$25.5M
MASI
22
DELISTED
Masimo
MASI
$198M 0.82%
1,522,049
+102,799
+7% +$14.7M
ARES icon
23
Ares Management
ARES
$30.9B
$186M 0.78%
1,151,200
+123,611
+12% +$19.3M
AME icon
24
Ametek
AME
$58.2B
$185M 0.77%
900,216
+541,556
+151% +$105M
RKLB icon
25
Rocket Lab Corp
RKLB
$51.8B
$181M 0.75%
2,592,443
+154,623
+6% +$8.86M
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.