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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
+10.7%
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
$28.9B
AUM Growth
+$2.35B
Cap. Flow
-$98.3M
Cap. Flow %
-0.34%
Top 10 Hldgs %
23.73%
Holding
1,960
New
105
Increased
655
Reduced
787
Closed
72

Top Buys

Rank Stock Value
1
BALL icon
Ball Corp
BALL
+$39.8M
2
ABNB icon
Airbnb
ABNB
+$37.1M
3
GNRC icon
Generac Holdings
GNRC
+$34.4M
4
U icon
Unity
U
+$29.3M
5
TREX icon
Trex
TREX
+$29M

Top Sells

Rank Stock Value
1
FISV
Fiserv Inc
FISV
+$87.4M
2
TDOC icon
Teladoc Health
TDOC
+$65.6M
3
VRSK icon
Verisk Analytics
VRSK
+$65M
4
AAPL icon
Apple
AAPL
+$52M
5
ACWV icon
iShares MSCI Global Min Vol Factor ETF
ACWV
+$46.5M

Sector Composition

Rank Sector Weight
1 Technology 25.7%
2 Healthcare 19.69%
3 Financials 11.7%
4 Consumer Discretionary 10.72%
5 Industrials 9.79%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
SPT icon
76
Sprout Social
SPT
$600M
$89.6M 0.31%
1,002,347
+80,501
+9% +$5.58M
VIG icon
77
Vanguard Dividend Appreciation ETF
VIG
$114B
$87.5M 0.3%
565,068
-32,021
-5% -$4.91M
EXAS
78
DELISTED
Exact Sciences
EXAS
$87.2M 0.3%
701,409
-23,480
-3% -$2.8M
BRK.B icon
79
Berkshire Hathaway Class B
BRK.B
$1.11T
$85.2M 0.3%
306,490
-980
-0.3% -$274K
NKE icon
80
Nike
NKE
$61.3B
$83.7M 0.29%
541,539
-26,046
-5% -$3.51M
ROK icon
81
Rockwell Automation
ROK
$49.6B
$83.2M 0.29%
291,017
+30,895
+12% +$8.33M
TEAM icon
82
Atlassian
TEAM
$39.1B
$82.4M 0.29%
320,769
-3,181
-1% -$745K
LIN icon
83
Linde
LIN
$226B
$82M 0.28%
283,749
+792
+0.3% +$231K
VRSK icon
84
Verisk Analytics
VRSK
$23.6B
$81.9M 0.28%
468,471
-366,414
-44% -$65M
ISRG icon
85
Intuitive Surgical
ISRG
$142B
$81.8M 0.28%
266,766
+1,800
+0.7% +$505K
MCD icon
86
McDonald's
MCD
$194B
$79.4M 0.28%
343,757
+6,616
+2% +$1.54M
ALGN icon
87
Align Technology
ALGN
$12.3B
$79.2M 0.27%
129,568
+2,721
+2% +$1.61M
TMO icon
88
Thermo Fisher Scientific
TMO
$224B
$76.7M 0.27%
152,054
-2,309
-1% -$1.09M
XYZ
89
Block Inc
XYZ
$47.5B
$73.7M 0.26%
302,092
-16,932
-5% -$3.93M
TRMB icon
90
Trimble
TRMB
$13.5B
$72.9M 0.25%
891,420
+53,880
+6% +$4.28M
RMD icon
91
ResMed
RMD
$32.6B
$72.6M 0.25%
294,494
+4,466
+2% +$939K
GNRC icon
92
Generac Holdings
GNRC
$12.7B
$72.6M 0.25%
174,795
+102,543
+142% +$34.4M
ZBRA icon
93
Zebra Technologies
ZBRA
$18.1B
$72.5M 0.25%
136,905
-7,357
-5% -$3.67M
MCHP icon
94
Microchip Technology
MCHP
$44B
$71.6M 0.25%
956,828
-13,430
-1% -$1.02M
OSH
95
DELISTED
Oak Street Health, Inc.
OSH
$71.1M 0.25%
1,214,146
+124,828
+11% +$7.43M
GD icon
96
General Dynamics
GD
$106B
$69.2M 0.24%
367,526
-2,199
-0.6% -$415K
MKC icon
97
McCormick & Company Non-Voting
MKC
$14.2B
$68.6M 0.24%
776,778
+2,011
+0.3% +$179K
PEP icon
98
PepsiCo
PEP
$189B
$68.5M 0.24%
462,020
-885
-0.2% -$129K
RNG icon
99
RingCentral
RNG
$5.3B
$67.9M 0.24%
233,591
+1,854
+0.8% +$529K
MDB icon
100
MongoDB
MDB
$35.3B
$67.8M 0.24%
187,599
+18,096
+11% +$5.6M
2 3
4
5 6

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William Blair & Company's Q2 2021 Portfolio in Review

As of Q2 2021, William Blair & Company held 1,960 positions worth $28.9B, up 8.9% from $26.5B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q2 2021 filing shows 105 new, 655 increased, 787 reduced and 72 closed positions. Its largest new stake was Luminar Technologies: 36,860 shares worth $12.1M. The largest sale was Fiserv Inc, an estimated $87.4M.

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

  • William Blair & Company's largest Q2 2021 buy was Luminar Technologies: 36,860 shares worth $12.1M.
  • William Blair & Company added most to Ball Corp in Q2 2021, an estimated $39.8M increase.
  • William Blair & Company's biggest Q2 2021 reduction was Fiserv Inc, cutting an estimated $87.4M.
  • William Blair & Company fully exited RealPage, Inc. in Q2 2021, selling an estimated $12.1M.
  • William Blair & Company's ten largest holdings make up 24% of its $28.9B portfolio in Q2 2021.
  • William Blair & Company opened 105 new positions and closed 72 in Q2 2021.
  • William Blair & Company's portfolio value rose 8.9% quarter-over-quarter to $28.9B.

Based on William Blair & Company's 13F filing for Q2 2021, filed 12 Aug 2021.