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Westfield Capital Management

Westfield Capital Management Portfolio holdings

AUM $30.6B
1-Year Est. Return 61.81%
This Fund
S&P 500
This Quarter Est. Return
+13.49%
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
$23.8B
AUM Growth
-$10.9M
Cap. Flow
-$1.73B
Cap. Flow %
-7.25%
Top 10 Hldgs %
30.48%
Holding
282
New
43
Increased
80
Reduced
99
Closed
47

Top Buys

Rank Stock Value
1
MRVL icon
Marvell Technology
MRVL
+$192M
2
PLTR icon
Palantir
PLTR
+$97.1M
3
KKR icon
KKR & Co
KKR
+$95.5M
4
BLD
TopBuild
BLD
+$89.8M
5
ADMA icon
ADMA Biologics
ADMA
+$87.5M

Top Sells

Rank Stock Value
1
NVDA icon
NVIDIA
NVDA
+$181M
2
CRM icon
Salesforce
CRM
+$177M
3
FN icon
Fabrinet
FN
+$165M
4
BMI icon
Badger Meter
BMI
+$150M
5
TXRH icon
Texas Roadhouse
TXRH
+$132M

Sector Composition

Rank Sector Weight
1 Technology 31.27%
2 Industrials 21.02%
3 Healthcare 16.43%
4 Financials 10.03%
5 Consumer Discretionary 9.86%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
XENE icon
151
Xenon Pharmaceuticals
XENE
$6.31B
$48.4M 0.2%
1,206,066
+53,461
+5% +$1.88M
ETNB
152
DELISTED
89bio
ETNB
$48.4M 0.2%
3,291,369
-79,448
-2% -$810K
FNB icon
153
FNB Corp
FNB
$6.86B
$48.1M 0.2%
+2,985,673
New +$47.5M
NOG icon
154
Northern Oil and Gas
NOG
$2.57B
$47.1M 0.2%
1,899,017
+158,713
+9% +$4.21M
FANG icon
155
Diamondback Energy
FANG
$56.2B
$45.7M 0.19%
319,664
-17,029
-5% -$2.42M
COCO icon
156
Vita Coco
COCO
$3.85B
$45.1M 0.19%
+1,062,761
New +$39.4M
SLAB icon
157
Silicon Laboratories
SLAB
$7.22B
$44.9M 0.19%
+342,310
New +$46.6M
BIO icon
158
Bio-Rad Laboratories Class A
BIO
$9.68B
$43.6M 0.18%
155,524
+16,019
+11% +$4.36M
WSC icon
159
WillScot Mobile Mini Holdings
WSC
$4B
$43.3M 0.18%
2,049,820
-811,211
-28% -$20.9M
PR
160
Permian Resources
PR
$18B
$43M 0.18%
3,357,716
+9,586
+0.3% +$131K
ENTG icon
161
Entegris
ENTG
$24.6B
$42.6M 0.18%
460,440
-85,248
-16% -$7.25M
CALX icon
162
Calix
CALX
$2.51B
$42M 0.18%
684,096
+392,947
+135% +$22.6M
NIQ
163
NIQ Global Intelligence PLC
NIQ
$4.96B
$41.3M 0.17%
+2,631,896
New +$45.8M
HOOD icon
164
Robinhood
HOOD
$85.3B
$41.2M 0.17%
287,615
-95,366
-25% -$10.4M
ALNY icon
165
Alnylam Pharmaceuticals
ALNY
$30B
$40.1M 0.17%
87,908
-98,997
-53% -$40.3M
RDNT icon
166
RadNet
RDNT
$6.06B
$40.1M 0.17%
+525,820
New +$34.1M
MKSI icon
167
MKS Inc
MKSI
$20.7B
$40M 0.17%
+323,364
New +$34.5M
JBHT icon
168
JB Hunt Transport Services
JBHT
$25.9B
$39.8M 0.17%
296,843
-16,106
-5% -$2.32M
KD icon
169
Kyndryl
KD
$2.85B
$39.5M 0.17%
1,315,656
-1,059,698
-45% -$36.4M
TOST icon
170
Toast
TOST
$19.7B
$37.8M 0.16%
1,034,305
-568,349
-35% -$24.7M
ALAB icon
171
Astera Labs
ALAB
$55.3B
$37.7M 0.16%
+192,614
New +$31.7M
FORM icon
172
FormFactor
FORM
$10.1B
$37.4M 0.16%
+1,026,657
New +$33.1M
CORZ icon
173
Core Scientific
CORZ
$6.71B
$35.7M 0.15%
1,992,735
+10,082
+0.5% +$148K
TRGP icon
174
Targa Resources
TRGP
$57.6B
$30.6M 0.13%
182,426
-8,643
-5% -$1.44M
BWIN
175
Baldwin Insurance Group
BWIN
$3B
$30.2M 0.13%
1,071,136
-154,812
-13% -$5.38M
5 6
7
8 9

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Westfield Capital Management's Q3 2025 Portfolio in Review

As of Q3 2025, Westfield Capital Management held 282 positions worth $23.8B, down 0.05% from $23.8B the previous quarter. Its ten largest holdings account for 30% of the portfolio.

Westfield Capital Management withdrew a net $1.73B in Q3 2025, closing 47 positions and reducing 99 holdings. Its most notable exit was Salesforce, an estimated $177M position sold in full.

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

Against the trend, Westfield Capital Management opened a new position in Marvell Technology worth $220M.

  • Westfield Capital Management's largest Q3 2025 buy was Marvell Technology: 2,611,958 shares worth $220M.
  • Westfield Capital Management added most to Palantir in Q3 2025, an estimated $97.1M increase.
  • Westfield Capital Management's biggest Q3 2025 reduction was NVIDIA, cutting an estimated $181M.
  • Westfield Capital Management fully exited Salesforce in Q3 2025, selling an estimated $177M.
  • Westfield Capital Management's ten largest holdings make up 30% of its $23.8B portfolio in Q3 2025.
  • Westfield Capital Management opened 43 new positions and closed 47 in Q3 2025.
  • Westfield Capital Management's portfolio value fell 0.05% quarter-over-quarter to $23.8B.

Based on Westfield Capital Management's 13F filing for Q3 2025, filed 12 Nov 2025.