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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
RNG icon
176
RingCentral
RNG
$5.18B
$33.3M 0.1%
177,702
+17,536
+11% +$3.89M
CMG icon
177
Chipotle Mexican Grill
CMG
$42.7B
$32.9M 0.1%
941,000
+19,000
+2% +$669K
CCOI icon
178
Cogent Communications
CCOI
$546M
$32.8M 0.1%
447,556
+21,647
+5% +$1.63M
GLD icon
179
SPDR Gold Trust
GLD
$138B
$32.6M 0.1%
190,735
+4,292
+2% +$721K
MU icon
180
Micron Technology
MU
$996B
$32.3M 0.1%
346,841
+19,656
+6% +$1.53M
EL icon
181
Estee Lauder
EL
$30.9B
$32.1M 0.1%
86,824
+1,814
+2% +$616K
DLB icon
182
Dolby
DLB
$5.71B
$32.1M 0.1%
337,390
-115,995
-26% -$10.4M
SMAR
183
DELISTED
Smartsheet Inc.
SMAR
$32.1M 0.1%
414,623
+4,109
+1% +$287K
IWD icon
184
iShares Russell 1000 Value ETF
IWD
$83.2B
$31.9M 0.1%
189,929
+3,936
+2% +$645K
BILL icon
185
BILL Holdings
BILL
$4.68B
$31.6M 0.1%
127,009
-17,954
-12% -$5.08M
DVAX
186
DELISTED
Dynavax Technologies
DVAX
$31.6M 0.1%
2,242,895
-8,399
-0.4% -$138K
SCHW
187
Charles Schwab
SCHW
$187B
$31.1M 0.1%
369,503
+99,820
+37% +$8.07M
TGT icon
188
Target
TGT
$66.8B
$30.1M 0.09%
130,230
+10,794
+9% +$2.62M
QDEL icon
189
QuidelOrtho
QDEL
$1.11B
$30.1M 0.09%
223,177
-48,918
-18% -$6.81M
DAVA icon
190
Endava
DAVA
$154M
$29.9M 0.09%
178,074
+122,660
+221% +$19M
AXON
191
Axon Enterprise
AXON
$42.4B
$29.9M 0.09%
175,460
+19,583
+13% +$3.29M
MRVI icon
192
Maravai LifeSciences
MRVI
$922M
$29.9M 0.09%
712,748
-456,532
-39% -$18.5M
ZM icon
193
Zoom
ZM
$29.7B
$29.8M 0.09%
161,955
+2,676
+2% +$629K
SYY icon
194
Sysco
SYY
$40.4B
$29.6M 0.09%
376,765
+38,474
+11% +$2.96M
PXD
195
DELISTED
Pioneer Natural Resource Co.
PXD
$29.5M 0.09%
162,332
+2,947
+2% +$542K
JLL icon
196
Jones Lang LaSalle
JLL
$16.7B
$29.4M 0.09%
109,198
-90,420
-45% -$23.3M
ITOT icon
197
iShares Core S&P Total US Stock Market ETF
ITOT
$97.1B
$29.2M 0.09%
272,528
-2,151
-0.8% -$225K
GPN icon
198
Global Payments
GPN
$23.2B
$28.8M 0.09%
213,344
+167,332
+364% +$23.1M
NTRS icon
199
Northern Trust
NTRS
$33.7B
$28.6M 0.09%
239,493
-545
-0.2% -$65.3K
DT icon
200
Dynatrace
DT
$14.1B
$28.5M 0.09%
472,636
+77,697
+20% +$5.29M
6 7
8
9 10

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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.