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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
CME icon
126
CME Group
CME
$94.3B
$41.4M 0.16%
206,795
+810
+0.4% +$161K
BLK icon
127
Blackrock
BLK
$180B
$41.3M 0.16%
63,877
-544
-0.8% -$380K
GWW icon
128
W.W. Grainger
GWW
$61.5B
$41.1M 0.16%
59,470
+1,303
+2% +$942K
ANET icon
129
Arista Networks
ANET
$265B
$39.2M 0.15%
851,608
+4,880
+0.6% +$217K
EMR icon
130
Emerson Electric
EMR
$91.4B
$38.6M 0.15%
400,228
+7,578
+2% +$722K
CSCO icon
131
Cisco
CSCO
$488B
$38.5M 0.15%
716,512
+11,802
+2% +$637K
PTLO icon
132
Portillo's
PTLO
$345M
$38.4M 0.15%
2,495,995
+241,069
+11% +$4.71M
PFE icon
133
Pfizer
PFE
$150B
$38M 0.15%
1,146,945
-69,775
-6% -$2.47M
LZ icon
134
LegalZoom.com
LZ
$930M
$38M 0.15%
3,476,226
+2,169,132
+166% +$26.6M
WST icon
135
West Pharmaceutical
WST
$24.8B
$37.7M 0.14%
100,436
-419
-0.4% -$162K
QCOM icon
136
Qualcomm
QCOM
$171B
$37.3M 0.14%
335,935
-6,093
-2% -$707K
HON icon
137
Honeywell
HON
$74.6B
$36.9M 0.14%
211,694
-8,929
-4% -$1.63M
DVAX
138
DELISTED
Dynavax Technologies
DVAX
$36.5M 0.14%
2,470,191
+15,059
+0.6% +$212K
NKE icon
139
Nike
NKE
$60.1B
$35.8M 0.14%
374,783
+934
+0.2% +$96.1K
BRK.A icon
140
Berkshire Hathaway Class A
BRK.A
$1.09T
$35.6M 0.14%
67
+15
+29% +$8.08M
GILD icon
141
Gilead Sciences
GILD
$168B
$35.3M 0.14%
471,600
-13,310
-3% -$1.02M
PXD
142
DELISTED
Pioneer Natural Resource Co.
PXD
$35.1M 0.13%
152,814
+1,371
+0.9% +$312K
BAC icon
143
Bank of America
BAC
$453B
$34.3M 0.13%
1,252,885
-26,345
-2% -$779K
CAT icon
144
Caterpillar
CAT
$393B
$34M 0.13%
124,378
+126
+0.1% +$34.2K
CVS icon
145
CVS Health
CVS
$121B
$33.1M 0.13%
473,698
+14,828
+3% +$1.05M
TOST icon
146
Toast
TOST
$19.7B
$32.8M 0.13%
1,753,111
-338,052
-16% -$7.34M
ITOT icon
147
iShares Core S&P Total US Stock Market ETF
ITOT
$97.8B
$32.7M 0.13%
347,474
-20,469
-6% -$2.01M
CRWD icon
148
CrowdStrike
CRWD
$226B
$32M 0.12%
764,620
+616,820
+417% +$24M
IT icon
149
Gartner
IT
$11.3B
$31.8M 0.12%
92,586
+1,998
+2% +$697K
IWD icon
150
iShares Russell 1000 Value ETF
IWD
$84B
$31.7M 0.12%
209,125
+697
+0.3% +$111K
4 5
6
7 8

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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.