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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
SG icon
626
Sweetgreen
SG
$701M
$2.92M 0.01%
116,776
+42,988
+58% +$1.19M
ITA icon
627
iShares US Aerospace & Defense ETF
ITA
$14.9B
$2.91M 0.01%
19,013
-117
-0.6% -$17.9K
CCC
628
CCC Intelligent Solutions
CCC
$4B
$2.9M 0.01%
+320,989
New +$3.33M
OSW icon
629
OneSpaWorld
OSW
$2.73B
$2.89M 0.01%
171,876
-4,198
-2% -$81.6K
ELS icon
630
Equity Lifestyle Properties
ELS
$12.6B
$2.84M 0.01%
42,618
-27
-0.1% -$1.8K
CACI icon
631
CACI
CACI
$14.9B
$2.84M 0.01%
7,736
+369
+5% +$141K
DDOG icon
632
Datadog
DDOG
$90B
$2.82M 0.01%
28,455
-10,738
-27% -$1.35M
JOBY icon
633
Joby Aviation
JOBY
$7.96B
$2.82M 0.01%
468,648
+467
+0.1% +$3.5K
SRPT icon
634
Sarepta Therapeutics
SRPT
$1.95B
$2.82M 0.01%
44,115
-362
-0.8% -$38.1K
DIVO icon
635
Amplify CWP Enhanced Dividend Income ETF
DIVO
$7.83B
$2.81M 0.01%
68,896
-2,996
-4% -$124K
BIDU icon
636
Baidu
BIDU
$35.4B
$2.79M 0.01%
30,359
+3,580
+13% +$321K
WY icon
637
Weyerhaeuser
WY
$17.9B
$2.77M 0.01%
94,471
-2,108
-2% -$62.7K
FCX icon
638
Freeport-McMoran
FCX
$94.9B
$2.76M 0.01%
72,827
+7,123
+11% +$273K
BRO icon
639
Brown & Brown
BRO
$23.6B
$2.75M 0.01%
22,071
-3,749
-15% -$419K
SYM icon
640
Symbotic
SYM
$5.48B
$2.74M 0.01%
135,798
+74,707
+122% +$1.91M
TMUS icon
641
T-Mobile US
TMUS
$194B
$2.74M 0.01%
10,269
-263
-2% -$64.8K
KAUG
642
Innovator U.S. Small Cap Power Buffer ETF - August
KAUG
$63.9M
$2.72M 0.01%
113,275
-17,700
-14% -$442K
IJK icon
643
iShares S&P Mid-Cap 400 Growth ETF
IJK
$11.3B
$2.72M 0.01%
32,635
-47
-0.1% -$4.23K
XEL icon
644
Xcel Energy
XEL
$49.4B
$2.69M 0.01%
38,032
-593
-2% -$40.4K
GPN icon
645
Global Payments
GPN
$24.1B
$2.69M 0.01%
27,495
-1,481
-5% -$155K
FITB
646
Fifth Third Bancorp
FITB
$52.7B
$2.68M 0.01%
68,491
+7,140
+12% +$301K
VCSH icon
647
Vanguard Short-Term Corporate Bond ETF
VCSH
$45.1B
$2.68M 0.01%
34,001
-2,313
-6% -$181K
GTLB icon
648
GitLab
GTLB
$6.87B
$2.68M 0.01%
56,976
+2,202
+4% +$135K
CBRE icon
649
CBRE Group
CBRE
$43.2B
$2.67M 0.01%
20,433
-45
-0.2% -$6.12K
VTIP icon
650
Vanguard Short-Term Inflation-Protected Securities Index Fund
VTIP
$19.8B
$2.66M 0.01%
53,277
+12,032
+29% +$591K
24 25
26
27 28

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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.