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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
OVID icon
1726
Ovid Therapeutics
OVID
$489M
$7.19K ﹤0.01%
23,039
– –
CMBM
1727
DELISTED
Cambium Networks
CMBM
$7.05K ﹤0.01%
+10,000
New +$9.79K
NFRA icon
1728
FlexShares STOXX Global Broad Infrastructure Index Fund
NFRA
$3.03B
$7.03K ﹤0.01%
122
– –
SGMO
1729
DELISTED
SANGAMO THERAPEUTICS INC
SGMO
$6.89K ﹤0.01%
10,500
– –
WW
1730
DELISTED
WW International
WW
$6.87K ﹤0.01%
13,145
– –
NANR icon
1731
State Street SPDR S&P North American Natural Resources ETF
NANR
$812M
$6.55K ﹤0.01%
118
– –
MILN
1732
Global X Millennial Consumer ETF
MILN
$102M
$6.47K ﹤0.01%
150
– –
BBUS icon
1733
JPMorgan BetaBuilders US Equity ETF
BBUS
$9.22B
$6.05K ﹤0.01%
60
– –
DFE icon
1734
WisdomTree Europe SmallCap Dividend Fund
DFE
$168M
$5.79K ﹤0.01%
95
– –
LONA
1735
LeonaBio Inc
LONA
$73.9M
$5.7K ﹤0.01%
2,000
– –
RSPS icon
1736
Invesco S&P 500 Equal Weight Consumer Staples ETF
RSPS
$246M
$5.39K ﹤0.01%
175
– –
PJP icon
1737
Invesco Pharmaceuticals ETF
PJP
$499M
$5.2K ﹤0.01%
60
– –
IAI icon
1738
iShares US Broker-Dealers & Securities Exchanges ETF
IAI
$1.37B
$5.18K ﹤0.01%
37
-506
-93% -$75.2K
TBT icon
1739
ProShares Trust UltraShort Lehman 20+ Year Treasury
TBT
$309M
$5.05K ﹤0.01%
150
– –
TQQQ icon
1740
ProShares UltraPro QQQ
TQQQ
$37.4B
$5.04K ﹤0.01%
176
– –
LEGR icon
1741
First Trust Indxx Innovative Transaction & Process ETF
LEGR
$133M
$4.88K ﹤0.01%
100
– –
AIA icon
1742
iShares Asia 50 ETF
AIA
$5.04B
$4.78K ﹤0.01%
66
– –
SEATW icon
1743
Vivid Seats Inc Warrant
SEATW
$499K
$4.72K ﹤0.01%
22,000
– –
DSTL icon
1744
Distillate US Fundamental Stability & Value ETF
DSTL
$2.05B
$4.42K ﹤0.01%
81
– –
STEM icon
1745
Stem
STEM
$48.8M
$4.16K ﹤0.01%
593
– –
EWQ icon
1746
iShares MSCI France ETF
EWQ
$333M
$4.02K ﹤0.01%
101
– –
PSL icon
1747
Invesco Dorsey Wright Consumer Staples Momentum ETF
PSL
$83.4M
$4.01K ﹤0.01%
37
– –
DFNM icon
1748
Dimensional National Municipal Bond ETF
DFNM
$2.26B
$3.9K ﹤0.01%
82
– –
INTF icon
1749
iShares International Equity Factor ETF
INTF
$3.75B
$3.85K ﹤0.01%
125
-130
-51% -$3.96K
SPEU icon
1750
State Street SPDR Portfolio Europe ETF
SPEU
$742M
$3.8K ﹤0.01%
+86
New +$3.72K
68 69
70
71 72

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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.