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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
SYY icon
151
Sysco
SYY
$40.5B
$31.1M 0.12%
402,507
+7,775
+2% +$597K
RTX icon
152
RTX Corp
RTX
$300B
$30.6M 0.12%
312,558
+12,978
+4% +$1.28M
ITOT icon
153
iShares Core S&P Total US Stock Market ETF
ITOT
$97.8B
$30.6M 0.12%
337,984
+378
+0.1% +$33.6K
HOLX
154
DELISTED
Hologic
HOLX
$30.5M 0.12%
377,977
-10,725
-3% -$863K
PXD
155
DELISTED
Pioneer Natural Resource Co.
PXD
$30.1M 0.12%
147,518
-14,926
-9% -$3.21M
IT icon
156
Gartner
IT
$11.3B
$29.9M 0.12%
91,692
-3,099
-3% -$1.02M
TGT icon
157
Target
TGT
$69.9B
$29.8M 0.12%
179,780
-2,160
-1% -$355K
VTI icon
158
Vanguard Morningstar Total Stock Market ETF
VTI
$691B
$29.7M 0.12%
145,409
+58,166
+67% +$11.6M
DVY icon
159
iShares Select Dividend ETF
DVY
$23.7B
$29.6M 0.12%
252,392
+64,251
+34% +$7.77M
HEI icon
160
HEICO Corp
HEI
$52.1B
$29.2M 0.12%
170,665
-2,273
-1% -$383K
PCTY icon
161
Paylocity
PCTY
$7.73B
$28.9M 0.12%
145,549
-5,358
-4% -$1.05M
DOCU
162
DocuSign
DOCU
$11.1B
$28.7M 0.11%
491,990
-10,829
-2% -$646K
CAT icon
163
Caterpillar
CAT
$393B
$28.5M 0.11%
124,478
+1,133
+0.9% +$274K
FTV icon
164
Fortive
FTV
$18.6B
$28.2M 0.11%
548,190
-145,631
-21% -$7.33M
NFLX icon
165
Netflix
NFLX
$309B
$27.8M 0.11%
804,170
+42,390
+6% +$1.4M
IEFA icon
166
iShares Core MSCI EAFE ETF
IEFA
$196B
$27.7M 0.11%
414,749
+79,144
+24% +$5.19M
PAYX icon
167
Paychex
PAYX
$42.8B
$27.1M 0.11%
236,797
-7,403
-3% -$842K
IRDM icon
168
Iridium Communications
IRDM
$5.26B
$27.1M 0.11%
437,330
+79,607
+22% +$4.76M
CCOI icon
169
Cogent Communications
CCOI
$525M
$27M 0.11%
424,242
-22,377
-5% -$1.44M
IWF icon
170
iShares Russell 1000 Growth ETF
IWF
$128B
$26.9M 0.11%
441,168
-1,880
-0.4% -$108K
WEX icon
171
WEX
WEX
$6.48B
$26.6M 0.11%
144,595
-9,211
-6% -$1.68M
EXAS
172
DELISTED
Exact Sciences
EXAS
$26.5M 0.11%
390,436
-22,022
-5% -$1.42M
AMGN icon
173
Amgen
AMGN
$225B
$25.7M 0.1%
106,351
-692
-0.6% -$170K
EL icon
174
Estee Lauder
EL
$31.7B
$25.6M 0.1%
103,840
+3,673
+4% +$933K
MRVL icon
175
Marvell Technology
MRVL
$195B
$25.3M 0.1%
583,328
+9,994
+2% +$421K
5 6
7
8 9

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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.