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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
-3.85%
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
$26.1B
AUM Growth
-$1.22B
Cap. Flow
+$114M
Cap. Flow %
0.44%
Top 10 Hldgs %
23.71%
Holding
1,877
New
67
Increased
674
Reduced
719
Closed
85

Top Buys

Rank Stock Value
1
KVUE icon
Kenvue
KVUE
+$32.2M
2
LZ icon
LegalZoom.com
LZ
+$26.6M
3
CRWD icon
CrowdStrike
CRWD
+$24M
4
CSGP icon
CoStar Group
CSGP
+$20.8M
5
GNRC icon
Generac Holdings
GNRC
+$18.3M

Top Sells

Rank Stock Value
1
AAPL icon
Apple
AAPL
+$37.6M
2
PODD icon
Insulet
PODD
+$37.3M
3
NVDA icon
NVIDIA
NVDA
+$24.8M
4
ATVI
Activision Blizzard
ATVI
+$20.6M
5
SBUX icon
Starbucks
SBUX
+$17.8M

Sector Composition

Rank Sector Weight
1 Technology 25.36%
2 Healthcare 17.61%
3 Financials 12.07%
4 Industrials 11.66%
5 Consumer Discretionary 8.39%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
UPS icon
151
United Parcel Service
UPS
$88.4B
$31.4M 0.12%
201,209
-4,447
-2% -$768K
GNRC icon
152
Generac Holdings
GNRC
$13.1B
$31M 0.12%
284,345
+148,017
+109% +$18.3M
AMGN icon
153
Amgen
AMGN
$225B
$30.9M 0.12%
114,802
+11,296
+11% +$2.82M
MRVL icon
154
Marvell Technology
MRVL
$195B
$30.8M 0.12%
568,321
+407
+0.1% +$24K
MDY icon
155
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
$27.2B
$30.4M 0.12%
66,544
-1,230
-2% -$589K
PYPL icon
156
PayPal
PYPL
$50.6B
$29.7M 0.11%
508,501
-81,970
-14% -$5.34M
GS icon
157
Goldman Sachs
GS
$302B
$29.5M 0.11%
91,123
+22,575
+33% +$7.54M
NEE icon
158
NextEra Energy
NEE
$179B
$29.5M 0.11%
514,472
+18,911
+4% +$1.31M
FTV icon
159
Fortive
FTV
$18.6B
$29.3M 0.11%
524,123
-21,541
-4% -$1.24M
IEFA icon
160
iShares Core MSCI EAFE ETF
IEFA
$196B
$29M 0.11%
450,165
+7,260
+2% +$486K
BSV icon
161
Vanguard Short-Term Bond ETF
BSV
$45.6B
$28.6M 0.11%
380,507
-141,106
-27% -$10.6M
ALL icon
162
Allstate
ALL
$64.7B
$28.5M 0.11%
255,538
-14,153
-5% -$1.54M
DOCU
163
DocuSign
DOCU
$11.1B
$28M 0.11%
666,279
-19,783
-3% -$970K
KVUE icon
164
Kenvue
KVUE
$36.5B
$27.9M 0.11%
+1,391,743
New +$32.2M
HEI icon
165
HEICO Corp
HEI
$52.1B
$27.2M 0.1%
167,728
-1,447
-0.9% -$246K
IRDM icon
166
Iridium Communications
IRDM
$5.26B
$27.1M 0.1%
594,853
+151,206
+34% +$7.83M
PAYX icon
167
Paychex
PAYX
$42.8B
$26.9M 0.1%
232,936
+10,959
+5% +$1.32M
FTNT icon
168
Fortinet
FTNT
$118B
$26.3M 0.1%
448,990
-28,704
-6% -$1.9M
EXAS
169
DELISTED
Exact Sciences
EXAS
$25.8M 0.1%
378,129
-8,587
-2% -$729K
PCTY icon
170
Paylocity
PCTY
$7.73B
$25.7M 0.1%
141,240
-3,050
-2% -$613K
GLD icon
171
SPDR Gold Trust
GLD
$144B
$25.7M 0.1%
149,644
+2,611
+2% +$467K
PODD icon
172
Insulet
PODD
$10.1B
$25.5M 0.1%
160,176
-166,510
-51% -$37.3M
WEX icon
173
WEX
WEX
$6.48B
$25.4M 0.1%
134,957
-6,835
-5% -$1.32M
YETI icon
174
Yeti Holdings
YETI
$3.85B
$25.4M 0.1%
526,326
+2,977
+0.6% +$132K
ULTA icon
175
Ulta Beauty
ULTA
$22.9B
$24.6M 0.09%
61,525
-12,256
-17% -$5.36M
5 6
7
8 9

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William Blair & Company's Q3 2023 Portfolio in Review

As of Q3 2023, William Blair & Company held 1,877 positions worth $26.1B, down 4.5% from $27.3B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q3 2023 filing shows 67 new, 674 increased, 719 reduced and 85 closed positions. Its largest new stake was Kenvue: 1,391,743 shares worth $27.9M. The largest sale was Apple, an estimated $37.6M.

By sector, the portfolio is most concentrated in Technology at 25% of assets, down from 26% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q3 2023 buy was Kenvue: 1,391,743 shares worth $27.9M.
  • William Blair & Company added most to LegalZoom.com in Q3 2023, an estimated $26.6M increase.
  • William Blair & Company's biggest Q3 2023 reduction was Apple, cutting an estimated $37.6M.
  • William Blair & Company fully exited Activision Blizzard in Q3 2023, selling an estimated $20.6M.
  • William Blair & Company's ten largest holdings make up 24% of its $26.1B portfolio in Q3 2023.
  • William Blair & Company opened 67 new positions and closed 85 in Q3 2023.
  • William Blair & Company's portfolio value fell 4.5% quarter-over-quarter to $26.1B.

Based on William Blair & Company's 13F filing for Q3 2023, filed 9 Nov 2023.