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William Blair & Company

William Blair & Company Portfolio holdings

AUM $38.4B
1-Year Est. Return 25.71%
This Fund
S&P 500
This Quarter Est. Return
-1.82%
1 Year Est. Return
+25.71%
3 Year Est. Return
+88.7%
5 Year Est. Return
+104.53%
10 Year Est. Return
+665.86%
AUM
$33.2B
AUM Growth
-$1.22B
Cap. Flow
+$11.1M
Cap. Flow %
0.03%
Top 10 Hldgs %
23.77%
Holding
1,895
New
82
Increased
626
Reduced
808
Closed
94

Top Buys

Rank Stock Value
1
META icon
Meta Platforms (Facebook)
META
+$112M
2
AAON icon
Aaon
AAON
+$104M
3
GEV icon
GE Vernova
GEV
+$77.6M
4
QCOM icon
Qualcomm
QCOM
+$47M
5
WM icon
Waste Management
WM
+$44.3M

Top Sells

Rank Stock Value
1
INTU icon
Intuit
INTU
+$65.9M
2
POOL icon
Pool Corp
POOL
+$64.7M
3
DHR icon
Danaher
DHR
+$59.8M
4
ZTS icon
Zoetis
ZTS
+$57.9M
5
SCHW
Charles Schwab
SCHW
+$44.5M

Sector Composition

Rank Sector Weight
1 Technology 26.23%
2 Financials 14.3%
3 Healthcare 12.58%
4 Industrials 12.51%
5 Consumer Discretionary 7.94%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
FE icon
1126
FirstEnergy
FE
$27.1B
$430K ﹤0.01%
10,645
+437
+4% +$17.4K
PKG icon
1127
Packaging Corp of America
PKG
$22.9B
$429K ﹤0.01%
2,166
+149
+7% +$31.8K
APPN icon
1128
Appian
APPN
$2.65B
$429K ﹤0.01%
14,881
– –
FLEX icon
1129
Flex
FLEX
$45.9B
$428K ﹤0.01%
12,943
-625
-5% -$24.5K
VNT icon
1130
Vontier
VNT
$4.47B
$428K ﹤0.01%
13,023
-342
-3% -$12.5K
BKLN icon
1131
Invesco Senior Loan ETF
BKLN
$6.76B
$425K ﹤0.01%
20,535
+1,471
+8% +$30.8K
PAYC icon
1132
Paycom
PAYC
$10.1B
$424K ﹤0.01%
1,939
+841
+77% +$177K
ICSH icon
1133
iShares Ultra Short Duration Bond Active ETF
ICSH
$8.4B
$423K ﹤0.01%
8,345
+1
+0% +$51
EVR icon
1134
Evercore
EVR
$12B
$419K ﹤0.01%
2,098
+500
+31% +$125K
XIFR
1135
XPLR Infrastructure LP
XIFR
$1.09B
$419K ﹤0.01%
44,079
+16,006
+57% +$182K
EZM icon
1136
WisdomTree US MidCap Fund
EZM
$960M
$416K ﹤0.01%
6,982
+1,632
+31% +$102K
EMLP icon
1137
First Trust North American Energy Infrastructure Fund
EMLP
$4.16B
$414K ﹤0.01%
11,033
+1,150
+12% +$42.6K
ALB icon
1138
Albemarle
ALB
$15.4B
$413K ﹤0.01%
5,731
+186
+3% +$15.1K
WFC.PRL icon
1139
Wells Fargo 7.5% Non Cumv Perp Conv
WFC.PRL
$4.66B
$411K ﹤0.01%
342
– –
MTDR icon
1140
Matador Resources
MTDR
$6.39B
$409K ﹤0.01%
+8,004
New +$442K
UNM icon
1141
Unum
UNM
$14.7B
$408K ﹤0.01%
5,008
-264
-5% -$20.4K
FMC icon
1142
FMC
FMC
$1.27B
$408K ﹤0.01%
+9,668
New +$429K
UUP icon
1143
Invesco DB US Dollar Index Bullish Fund
UUP
$414M
$408K ﹤0.01%
14,290
-50
-0.3% -$1.45K
JMST icon
1144
JPMorgan Ultra-Short Municipal Income ETF
JMST
$7.15B
$408K ﹤0.01%
8,019
-624
-7% -$31.7K
BMAY icon
1145
Innovator US Equity Buffer ETF May
BMAY
$237M
$408K ﹤0.01%
10,277
-1,515
-13% -$61.5K
MIDD icon
1146
Middleby
MIDD
$5.29B
$407K ﹤0.01%
2,677
-1,721
-39% -$270K
IQLT icon
1147
iShares MSCI Intl Quality Factor ETF
IQLT
$14.3B
$406K ﹤0.01%
10,218
-1,149
-10% -$45.3K
THFF icon
1148
First Financial Corp
THFF
$975M
$403K ﹤0.01%
8,220
– –
JMUB icon
1149
JPMorgan Municipal ETF
JMUB
$8.52B
$400K ﹤0.01%
8,000
+900
+13% +$45.2K
EXR icon
1150
Extra Space Storage
EXR
$31.6B
$400K ﹤0.01%
2,693
+105
+4% +$15.9K
44 45
46
47 48

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William Blair & Company's Q1 2025 Portfolio in Review

As of Q1 2025, William Blair & Company held 1,895 positions worth $33.2B, down 3.6% from $34.4B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q1 2025 filing shows 82 new, 626 increased, 808 reduced and 94 closed positions. Its largest new stake was CCC Intelligent Solutions: 320,989 shares worth $2.9M. The largest sale was Intuit, an estimated $65.9M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, down from 28% a quarter earlier, followed by Financials and Healthcare.

  • William Blair & Company's largest Q1 2025 buy was CCC Intelligent Solutions: 320,989 shares worth $2.9M.
  • William Blair & Company added most to Meta Platforms (Facebook) in Q1 2025, an estimated $112M increase.
  • William Blair & Company's biggest Q1 2025 reduction was Intuit, cutting an estimated $65.9M.
  • William Blair & Company fully exited Smartsheet Inc. in Q1 2025, selling an estimated $3.52M.
  • William Blair & Company's ten largest holdings make up 24% of its $33.2B portfolio in Q1 2025.
  • William Blair & Company opened 82 new positions and closed 94 in Q1 2025.
  • William Blair & Company's portfolio value fell 3.6% quarter-over-quarter to $33.2B.

Based on William Blair & Company's 13F filing for Q1 2025, filed 9 May 2025.