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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
ARKK icon
701
ARK Innovation ETF
ARKK
$6.31B
$2.22M 0.01%
23,505
+2,112
+10% +$231K
VAPO
702
DELISTED
Vapotherm, Inc. Common Stock
VAPO
$2.21M 0.01%
13,341
+1,307
+11% +$226K
SLB icon
703
SLB Ltd
SLB
$75B
$2.2M 0.01%
73,450
+23,546
+47% +$742K
IDV icon
704
iShares International Select Dividend ETF
IDV
$8.51B
$2.19M 0.01%
70,359
+3,371
+5% +$104K
YUMC icon
705
Yum China
YUMC
$16.3B
$2.19M 0.01%
43,980
-4,897
-10% -$266K
PARA
706
DELISTED
Paramount Global Class B
PARA
$2.18M 0.01%
72,120
+4,525
+7% +$156K
ELV icon
707
Elevance Health
ELV
$85.5B
$2.18M 0.01%
4,695
+476
+11% +$200K
GGG icon
708
Graco
GGG
$13.5B
$2.17M 0.01%
26,913
+5,808
+28% +$441K
SCZ icon
709
iShares MSCI EAFE Small-Cap ETF
SCZ
$13.7B
$2.15M 0.01%
29,472
-3,748
-11% -$278K
FBC
710
DELISTED
Flagstar Bancorp, Inc. New
FBC
$2.13M 0.01%
44,500
– –
TER icon
711
Teradyne
TER
$59.3B
$2.13M 0.01%
12,997
+229
+2% +$32.2K
VTEB icon
712
Vanguard Tax-Exempt Bond Index Fund
VTEB
$45.3B
$2.12M 0.01%
38,578
+149
+0.4% +$8.16K
VG
713
DELISTED
Vonage Holdings Corporation
VG
$2.1M 0.01%
101,200
+87,000
+613% +$1.59M
LSTR icon
714
Landstar System
LSTR
$6.21B
$2.1M 0.01%
11,743
+33
+0.3% +$5.66K
LYFT icon
715
Lyft
LYFT
$6.63B
$2.1M 0.01%
49,135
-29,657
-38% -$1.39M
SLV icon
716
iShares Silver Trust
SLV
$30.7B
$2.1M 0.01%
97,455
-15,554
-14% -$336K
SYNH
717
DELISTED
Syneos Health, Inc. Class A Common Stock
SYNH
$2.09M 0.01%
+20,323
New +$1.95M
CHTR icon
718
Charter Communications
CHTR
$18.2B
$2.08M 0.01%
3,197
-352
-10% -$240K
WHR icon
719
Whirlpool
WHR
$2.82B
$2.08M 0.01%
8,873
-45
-0.5% -$9.88K
AWK icon
720
American Water Works
AWK
$26.9B
$2.06M 0.01%
10,916
+139
+1% +$24.3K
NTAP icon
721
NetApp
NTAP
$37.2B
$2.05M 0.01%
22,265
+2,138
+11% +$193K
ICSH icon
722
iShares Ultra Short Duration Bond Active ETF
ICSH
$8.13B
$2.04M 0.01%
40,382
+37,633
+1,369% +$1.9M
VUSB icon
723
Vanguard Ultra-Short Bond ETF
VUSB
$8.92B
$2.03M 0.01%
+40,640
New +$2.03M
FFIC
724
DELISTED
Flushing Financial
FFIC
$2.03M 0.01%
83,420
+250
+0.3% +$5.98K
ALTG icon
725
Alta Equipment Group
ALTG
$245M
$2.02M 0.01%
138,289
-173,066
-56% -$2.54M
27 28
29
30 31

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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.