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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
BDXB
1326
DELISTED
Becton, Dickinson and Company Depositary Shares, each Representing a 1/20th Interest in a Share of 6.00% Mandatory Convertible Preferred Stock, Series B
BDXB
$369K ﹤0.01%
+6,989
New +$367K
FAF icon
1327
First American
FAF
$7.58B
$368K ﹤0.01%
4,708
+1
+0% +$75
IRIX icon
1328
IRIDEX
IRIX
$14.5M
$367K ﹤0.01%
60,000
-15,000
-20% -$107K
RGT
1329
Royce Global Value Trust
RGT
$102M
$367K ﹤0.01%
27,945
– –
SSD icon
1330
Simpson Manufacturing
SSD
$8.16B
$367K ﹤0.01%
+2,639
New +$318K
CLAR icon
1331
Clarus
CLAR
$143M
$365K ﹤0.01%
13,158
+1,893
+17% +$52.3K
HYS icon
1332
PIMCO 0-5 Year High Yield Corporate Bond Index Exchange-Traded Fund
HYS
$1.75B
$365K ﹤0.01%
3,683
+2,177
+145% +$215K
MPLX icon
1333
MPLX
MPLX
$59.7B
$365K ﹤0.01%
12,321
-4,679
-28% -$140K
SYRE icon
1334
Spyre Therapeutics
SYRE
$9.25B
$364K ﹤0.01%
3,064
+976
+47% +$154K
GIGB icon
1335
Goldman Sachs Access Investment Grade Corporate Bond ETF
GIGB
$973M
$363K ﹤0.01%
6,719
– –
NFG icon
1336
National Fuel Gas
NFG
$7.65B
$363K ﹤0.01%
5,680
-45
-0.8% -$2.69K
JBL icon
1337
Jabil
JBL
$35.8B
$362K ﹤0.01%
5,151
– –
XHB icon
1338
State Street SPDR S&P Homebuilders ETF
XHB
$1.56B
$361K ﹤0.01%
4,214
+461
+12% +$36.9K
VOYA icon
1339
Voya Financial
VOYA
$9.19B
$360K ﹤0.01%
5,424
+139
+3% +$9.16K
QDEF icon
1340
FlexShares Quality Dividend Defensive Index Fund
QDEF
$562M
$359K ﹤0.01%
6,061
– –
XMMO icon
1341
Invesco S&P MidCap Momentum ETF
XMMO
$7.53B
$359K ﹤0.01%
3,950
– –
DRE
1342
DELISTED
Duke Realty Corp.
DRE
$359K ﹤0.01%
5,470
+6
+0.1% +$347
BEAM icon
1343
Beam Therapeutics
BEAM
$2.84B
$358K ﹤0.01%
4,492
+742
+20% +$63.5K
LUMN icon
1344
Lumen
LUMN
$6.44B
$358K ﹤0.01%
28,516
+2,714
+11% +$34.5K
AGCO icon
1345
AGCO
AGCO
$7.2B
$357K ﹤0.01%
3,076
+15
+0.5% +$1.82K
FUN icon
1346
Cedar Fair
FUN
$1.67B
$357K ﹤0.01%
7,132
– –
SIRI icon
1347
SiriusXM
SIRI
$10.1B
$357K ﹤0.01%
5,626
+161
+3% +$10.1K
GTLS
1348
DELISTED
Chart Industries
GTLS
$356K ﹤0.01%
2,229
+160
+8% +$28.3K
AEE icon
1349
Ameren
AEE
$30.1B
$355K ﹤0.01%
3,992
-41
-1% -$3.48K
BRLT icon
1350
Brilliant Earth
BRLT
$21.6M
$355K ﹤0.01%
+19,636
New +$295K
52 53
54
55 56

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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.