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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
+512.03%
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
HD icon
26
Home Depot
HD
$352B
$267M 0.84%
642,505
+4,739
+0.7% +$1.8M
ACN icon
27
Accenture
ACN
$104B
$263M 0.83%
634,960
+21,205
+3% +$7.73M
ICE icon
28
Intercontinental Exchange
ICE
$84.1B
$254M 0.8%
1,853,976
-4,505
-0.2% -$597K
COST icon
29
Costco
COST
$418B
$252M 0.79%
444,012
+1,083
+0.2% +$555K
FAST icon
30
Fastenal
FAST
$57.4B
$224M 0.7%
6,995,508
-56,590
-0.8% -$1.67M
SYK icon
31
Stryker
SYK
$129B
$223M 0.7%
835,382
+30,544
+4% +$8.02M
TYL icon
32
Tyler Technologies
TYL
$12.6B
$222M 0.7%
412,267
-599
-0.1% -$310K
CSGP icon
33
CoStar Group
CSGP
$12.2B
$221M 0.69%
2,795,346
+71,440
+3% +$5.99M
AON icon
34
Aon
AON
$76.4B
$219M 0.69%
729,200
+120,405
+20% +$36.1M
AMT icon
35
American Tower
AMT
$78.3B
$217M 0.68%
740,333
+11,334
+2% +$3.1M
CPRT icon
36
Copart
CPRT
$26.8B
$213M 0.67%
5,618,476
-42,464
-0.8% -$1.58M
TREX icon
37
Trex
TREX
$5.15B
$209M 0.65%
1,545,282
+159,729
+12% +$19.2M
LULU icon
38
lululemon athletica
LULU
$14B
$188M 0.59%
480,667
+6,307
+1% +$2.7M
META icon
39
Meta Platforms (Facebook)
META
$1.5T
$186M 0.58%
552,685
+14,916
+3% +$4.95M
WSO icon
40
Watsco Inc
WSO
$13.7B
$182M 0.57%
580,775
+1,700
+0.3% +$504K
UNH icon
41
UnitedHealth
UNH
$375B
$180M 0.56%
358,390
+13,016
+4% +$5.89M
FISV
42
Fiserv Inc
FISV
$28.9B
$176M 0.55%
1,694,323
-59,203
-3% -$6.12M
JNJ icon
43
Johnson & Johnson
JNJ
$621B
$169M 0.53%
986,789
+38,375
+4% +$6.28M
ABBV icon
44
AbbVie
ABBV
$435B
$162M 0.51%
1,197,619
+83,386
+7% +$9.85M
ABMD
45
DELISTED
Abiomed Inc
ABMD
$159M 0.5%
443,725
+11,875
+3% +$4.01M
NVDA icon
46
NVIDIA
NVDA
$5.31T
$150M 0.47%
5,084,180
+20,890
+0.4% +$575K
NOW icon
47
ServiceNow
NOW
$121B
$149M 0.47%
1,150,225
+246,565
+27% +$32.4M
KRNT icon
48
Kornit Digital
KRNT
$781M
$143M 0.45%
939,511
+11,898
+1% +$1.83M
PG icon
49
Procter & Gamble
PG
$342B
$142M 0.45%
870,314
+79,646
+10% +$11.8M
BX icon
50
Blackstone
BX
$109B
$138M 0.43%
1,066,193
+113,025
+12% +$15.1M
1
2
3 4 5

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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.