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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
HON icon
151
Honeywell
HON
$76.3B
$41.7M 0.13%
212,244
-6,851
-3% -$1.38M
GD icon
152
General Dynamics
GD
$105B
$41.6M 0.13%
199,354
+3,161
+2% +$638K
CSCO icon
153
Cisco
CSCO
$476B
$41.5M 0.13%
654,995
+132,102
+25% +$7.55M
RBA icon
154
RB Global
RBA
$17.2B
$40.6M 0.13%
663,879
+22,313
+3% +$1.49M
VOO icon
155
Vanguard S&P 500 ETF
VOO
$1.01T
$39.9M 0.13%
91,329
+15,171
+20% +$6.4M
GWW icon
156
W.W. Grainger
GWW
$60.4B
$39.7M 0.12%
76,523
+581
+0.8% +$274K
WAB icon
157
Wabtec
WAB
$49.9B
$39M 0.12%
422,968
-4,616
-1% -$423K
INTC icon
158
Intel
INTC
$503B
$38.9M 0.12%
756,301
+113,312
+18% +$5.79M
ONT
159
Onterris Inc
ONT
$530M
$38.7M 0.12%
548,368
+247,176
+82% +$17.1M
CVNA icon
160
Carvana
CVNA
$75.1B
$38.6M 0.12%
832,650
+10,595
+1% +$583K
BAH icon
161
Booz Allen Hamilton
BAH
$8.89B
$38.4M 0.12%
453,010
+190,500
+73% +$16.1M
CAT icon
162
Caterpillar
CAT
$394B
$38.4M 0.12%
185,782
+51,207
+38% +$10.3M
DE icon
163
Deere & Co
DE
$166B
$38M 0.12%
110,837
+10,733
+11% +$3.73M
SHOP icon
164
Shopify
SHOP
$190B
$37.9M 0.12%
275,230
-1,150
-0.4% -$168K
GSY icon
165
Invesco Ultra Short Duration ETF
GSY
$3.9B
$37.2M 0.12%
740,377
+369,409
+100% +$18.6M
PAYX icon
166
Paychex
PAYX
$42.7B
$36.6M 0.11%
268,258
-1,425
-0.5% -$176K
TIP icon
167
iShares TIPS Bond ETF
TIP
$14.5B
$36.4M 0.11%
281,992
-5,435
-2% -$701K
GDYN icon
168
Grid Dynamics Holdings
GDYN
$615M
$36M 0.11%
946,870
-72,120
-7% -$2.49M
AKAM icon
169
Akamai
AKAM
$17.2B
$35.5M 0.11%
303,355
+40,623
+15% +$4.47M
DIA icon
170
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
$46.3B
$35.3M 0.11%
97,150
+19,971
+26% +$7.1M
MDY icon
171
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
$26.9B
$34.5M 0.11%
66,571
+2,506
+4% +$1.27M
EMR icon
172
Emerson Electric
EMR
$87.5B
$34.3M 0.11%
368,691
+71,677
+24% +$6.75M
COUP
173
DELISTED
Coupa Software Incorporated
COUP
$33.9M 0.11%
214,641
-12,011
-5% -$2.47M
BL icon
174
BlackLine
BL
$1.74B
$33.6M 0.11%
324,828
+5,765
+2% +$668K
DAY
175
DELISTED
Dayforce
DAY
$33.4M 0.1%
319,885
+1,989
+0.6% +$228K
5 6
7
8 9

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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.