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William Blair & Company

William Blair & Company Portfolio holdings

AUM $34.9B
1-Year Est. Return 18.88%
This Fund
S&P 500
This Quarter Est. Return
+8.27%
1 Year Est. Return
+18.88%
3 Year Est. Return
+73.84%
5 Year Est. Return
+90.13%
10 Year Est. Return
+563.35%
AUM
$31.9B
AUM Growth
+$2.51B
Cap. Flow
+$830M
Cap. Flow %
2.6%
Top 10 Hldgs %
23.75%
Holding
2,051
New
174
Increased
889
Reduced
606
Closed
88

Top Buys

Rank Stock Value
1
AMZN icon
Amazon
AMZN
+$66.8M
2
PODD icon
Insulet
PODD
+$47M
3
XMTR icon
Xometry
XMTR
+$44.1M
4
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$43.7M
5
AON icon
Aon
AON
+$36.1M

Top Sells

Rank Stock Value
1
PYPL icon
PayPal
PYPL
+$73.8M
2
ATVI
Activision Blizzard
ATVI
+$46.9M
3
OSH
Oak Street Health, Inc.
OSH
+$43.6M
4
DIS icon
Walt Disney
DIS
+$34M
5
PGR icon
Progressive
PGR
+$32.6M

Sector Composition

Rank Sector Weight
1 Technology 26.2%
2 Healthcare 19.21%
3 Financials 10.7%
4 Consumer Discretionary 10.6%
5 Industrials 10.38%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
RMD icon
101
ResMed
RMD
$32.4B
$76.4M 0.24%
293,193
-6,235
-2% -$1.62M
GNRC icon
102
Generac Holdings
GNRC
$12.5B
$76M 0.24%
215,825
+35,764
+20% +$14.8M
LLY icon
103
Eli Lilly
LLY
$1.06T
$74.4M 0.23%
269,498
+2,908
+1% +$737K
TSLA icon
104
Tesla
TSLA
$1.26T
$72.7M 0.23%
206,250
+1,845
+0.9% +$619K
MKC icon
105
McCormick & Company Non-Voting
MKC
$14.1B
$72.6M 0.23%
751,685
-15,258
-2% -$1.3M
QQQ icon
106
Invesco QQQ Trust
QQQ
$479B
$71.7M 0.22%
180,144
+7,599
+4% +$2.93M
PFE icon
107
Pfizer
PFE
$149B
$71.3M 0.22%
1,208,093
+64,298
+6% +$3.19M
QCOM icon
108
Qualcomm
QCOM
$168B
$70.2M 0.22%
384,095
+51,254
+15% +$8.21M
EVH icon
109
Evolent Health
EVH
$404M
$68.6M 0.22%
2,479,825
-78,360
-3% -$2.25M
CVX icon
110
Chevron
CVX
$371B
$68.5M 0.21%
583,768
+105,246
+22% +$12M
BMY icon
111
Bristol-Myers Squibb
BMY
$131B
$67.4M 0.21%
1,080,637
-179,866
-14% -$10.6M
IWM icon
112
iShares Russell 2000 ETF
IWM
$82.1B
$66.1M 0.21%
296,925
+73,808
+33% +$16.7M
BLK icon
113
Blackrock
BLK
$175B
$64.4M 0.2%
70,380
+572
+0.8% +$522K
VTV icon
114
Vanguard Morningstar Value ETF
VTV
$191B
$63.5M 0.2%
431,656
+26,770
+7% +$3.82M
ROL icon
115
Rollins
ROL
$17.7B
$63M 0.2%
1,842,671
+75,487
+4% +$2.64M
EFA icon
116
iShares MSCI EAFE ETF
EFA
$79.4B
$62.1M 0.19%
789,781
+11,795
+2% +$934K
RYAN icon
117
Ryan Specialty Holdings
RYAN
$5.76B
$61.6M 0.19%
1,527,429
+817,874
+115% +$31M
PANW icon
118
Palo Alto Networks
PANW
$293B
$61.6M 0.19%
663,570
+40,836
+7% +$3.53M
BAC icon
119
Bank of America
BAC
$441B
$61.3M 0.19%
1,377,185
+239,148
+21% +$10.9M
UBER icon
120
Uber
UBER
$143B
$59.4M 0.19%
1,415,746
+696,685
+97% +$30M
TXN icon
121
Texas Instruments
TXN
$254B
$59.2M 0.19%
314,348
+7,181
+2% +$1.38M
LMBS icon
122
First Trust Exchange-Traded Fund IV First Trust Low Duration Opportunities ETF
LMBS
$6.37B
$57.5M 0.18%
1,150,514
-109,230
-9% -$5.49M
IUSV icon
123
iShares Core S&P US Value ETF
IUSV
$27.5B
$57.3M 0.18%
750,481
+35,017
+5% +$2.6M
MRVL icon
124
Marvell Technology
MRVL
$189B
$55.8M 0.18%
637,776
+30,505
+5% +$2.28M
MRK icon
125
Merck
MRK
$317B
$55.5M 0.17%
723,700
+42,370
+6% +$3.37M
3 4
5
6 7

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William Blair & Company's Q4 2021 Portfolio in Review

As of Q4 2021, William Blair & Company held 2,051 positions worth $31.9B, up 8.5% from $29.4B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q4 2021 filing shows 174 new, 889 increased, 606 reduced and 88 closed positions. Its largest new stake was Portillo's: 759,814 shares worth $28.5M. The largest sale was PayPal, an estimated $73.8M.

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 Q4 2021 buy was Portillo's: 759,814 shares worth $28.5M.
  • William Blair & Company added most to Amazon in Q4 2021, an estimated $66.8M increase.
  • William Blair & Company's biggest Q4 2021 reduction was PayPal, cutting an estimated $73.8M.
  • William Blair & Company fully exited Asana in Q4 2021, selling an estimated $6.06M.
  • William Blair & Company's ten largest holdings make up 24% of its $31.9B portfolio in Q4 2021.
  • William Blair & Company opened 174 new positions and closed 88 in Q4 2021.
  • William Blair & Company's portfolio value rose 8.5% quarter-over-quarter to $31.9B.

Based on William Blair & Company's 13F filing for Q4 2021, filed 14 Feb 2022.