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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
+10.3%
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
$25B
AUM Growth
+$2.04B
Cap. Flow
+$116M
Cap. Flow %
0.46%
Top 10 Hldgs %
23.68%
Holding
1,879
New
69
Increased
680
Reduced
748
Closed
78

Top Buys

Rank Stock Value
1
NEOG icon
Neogen
NEOG
+$45.2M
2
PGR icon
Progressive
PGR
+$34.8M
3
TOST icon
Toast
TOST
+$33.8M
4
PWSC
PowerSchool Holdings, Inc.
PWSC
+$33.4M
5
UBER icon
Uber
UBER
+$30.4M

Top Sells

Rank Stock Value
1
GOOG icon
Alphabet (Google) Class C
GOOG
+$54.2M
2
LULU icon
lululemon athletica
LULU
+$53.4M
3
PYPL icon
PayPal
PYPL
+$45.8M
4
BAH icon
Booz Allen Hamilton
BAH
+$20.2M
5
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$17.8M

Sector Composition

Rank Sector Weight
1 Technology 24.61%
2 Healthcare 19.42%
3 Financials 11.75%
4 Industrials 11.37%
5 Consumer Discretionary 8.4%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
CPRT icon
26
Copart
CPRT
$27.5B
$205M 0.82%
5,451,810
-76,728
-1% -$2.61M
HD icon
27
Home Depot
HD
$340B
$200M 0.8%
677,393
+1,167
+0.2% +$358K
INTU icon
28
Intuit
INTU
$98.3B
$196M 0.78%
439,612
-11,924
-3% -$4.89M
ICE icon
29
Intercontinental Exchange
ICE
$87.1B
$191M 0.76%
1,835,001
-21,730
-1% -$2.26M
ABT icon
30
Abbott
ABT
$192B
$189M 0.75%
1,863,450
-73,137
-4% -$7.72M
ABBV icon
31
AbbVie
ABBV
$442B
$184M 0.74%
1,155,629
-11,456
-1% -$1.75M
FAST icon
32
Fastenal
FAST
$58.9B
$178M 0.71%
6,612,702
+21,306
+0.3% +$546K
ACN icon
33
Accenture
ACN
$110B
$177M 0.71%
619,765
-15,354
-2% -$4.19M
UNH icon
34
UnitedHealth
UNH
$360B
$171M 0.68%
362,406
-4,032
-1% -$1.95M
TYL icon
35
Tyler Technologies
TYL
$13.5B
$171M 0.68%
480,869
+3,233
+0.7% +$1.05M
CRM icon
36
Salesforce
CRM
$164B
$165M 0.66%
824,123
-47,728
-5% -$8.06M
JNJ icon
37
Johnson & Johnson
JNJ
$631B
$157M 0.63%
1,015,078
+18,684
+2% +$3.02M
ECL icon
38
Ecolab
ECL
$77.4B
$155M 0.62%
936,267
+13,798
+1% +$2.15M
NOW icon
39
ServiceNow
NOW
$132B
$145M 0.58%
1,565,060
+63,410
+4% +$5.52M
AMT icon
40
American Tower
AMT
$81.5B
$145M 0.58%
711,224
-2,490
-0.3% -$522K
IVV icon
41
iShares Core S&P 500 ETF
IVV
$910B
$145M 0.58%
352,358
-10,394
-3% -$4.17M
PG icon
42
Procter & Gamble
PG
$336B
$140M 0.56%
938,611
+18,786
+2% +$2.69M
DE icon
43
Deere & Co
DE
$165B
$139M 0.55%
335,962
+5,257
+2% +$2.18M
CTAS icon
44
Cintas
CTAS
$80.6B
$133M 0.53%
1,146,224
-14,236
-1% -$1.57M
KO icon
45
Coca-Cola
KO
$376B
$131M 0.52%
2,109,070
+3,498
+0.2% +$212K
VEA icon
46
Vanguard FTSE Developed Markets ETF
VEA
$239B
$128M 0.51%
2,830,850
+255,050
+10% +$11.4M
TDG icon
47
TransDigm Group
TDG
$68.7B
$126M 0.5%
171,014
-4,590
-3% -$3.28M
APH icon
48
Amphenol
APH
$205B
$125M 0.5%
3,067,598
+4,746
+0.2% +$187K
IRTC icon
49
iRhythm Holdings
IRTC
$4.12B
$125M 0.5%
1,008,689
+95,737
+10% +$10.4M
PANW icon
50
Palo Alto Networks
PANW
$321B
$116M 0.46%
1,163,584
+8,374
+0.7% +$710K
1
2
3 4 5

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William Blair & Company's Q1 2023 Portfolio in Review

As of Q1 2023, William Blair & Company held 1,879 positions worth $25B, up 8.9% from $23B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q1 2023 filing shows 69 new, 680 increased, 748 reduced and 78 closed positions. Its largest new stake was Neogen: 2,404,277 shares worth $44.5M. The largest sale was Alphabet (Google) Class C, an estimated $54.2M.

By sector, the portfolio is most concentrated in Technology at 25% of assets, up from 22% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q1 2023 buy was Neogen: 2,404,277 shares worth $44.5M.
  • William Blair & Company added most to Progressive in Q1 2023, an estimated $34.8M increase.
  • William Blair & Company's biggest Q1 2023 reduction was Alphabet (Google) Class C, cutting an estimated $54.2M.
  • William Blair & Company fully exited Coupa Software Incorporated in Q1 2023, selling an estimated $2.65M.
  • William Blair & Company's ten largest holdings make up 24% of its $25B portfolio in Q1 2023.
  • William Blair & Company opened 69 new positions and closed 78 in Q1 2023.
  • William Blair & Company's portfolio value rose 8.9% quarter-over-quarter to $25B.

Based on William Blair & Company's 13F filing for Q1 2023, filed 12 May 2023.