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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
MBB icon
1101
iShares MBS ETF
MBB
$39.1B
$661K ﹤0.01%
6,149
+921
+18% +$99.1K
AGGY icon
1102
WisdomTree Yield Enhanced US Aggregate Bond Fund
AGGY
$926M
$660K ﹤0.01%
12,767
+15
+0.1% +$777
UTHR icon
1103
United Therapeutics
UTHR
$23.1B
$660K ﹤0.01%
+3,053
New +$599K
EXG icon
1104
Eaton Vance Tax-Managed Global Diversified Equity Income Fund
EXG
$3.06B
$659K ﹤0.01%
61,788
– –
HELE icon
1105
Helen of Troy
HELE
$693M
$658K ﹤0.01%
2,690
-1,104
-29% -$262K
WLKP icon
1106
Westlake Chemical Partners
WLKP
$763M
$654K ﹤0.01%
24,350
– –
ESNT icon
1107
Essent Group
ESNT
$6.33B
$653K ﹤0.01%
+14,337
New +$657K
MMI icon
1108
Marcus & Millichap
MMI
$1.19B
$650K ﹤0.01%
12,637
+1,007
+9% +$47K
QUAL icon
1109
iShares MSCI USA Quality Factor ETF
QUAL
$48.1B
$646K ﹤0.01%
4,441
+390
+10% +$55.1K
DFAT icon
1110
Dimensional US Targeted Value ETF
DFAT
$14.7B
$643K ﹤0.01%
13,541
+940
+7% +$44.1K
COCO icon
1111
Vita Coco
COCO
$3.6B
$642K ﹤0.01%
+57,500
New +$732K
CM icon
1112
Canadian Imperial Bank of Commerce
CM
$108B
$639K ﹤0.01%
10,968
+3,206
+41% +$187K
STAG icon
1113
STAG Industrial
STAG
$7.19B
$639K ﹤0.01%
13,327
+1,037
+8% +$45.2K
BPMC
1114
DELISTED
Blueprint Medicines
BPMC
$638K ﹤0.01%
5,956
+401
+7% +$41.9K
RDS.B
1115
DELISTED
Royal Dutch Shell PLC ADS Class B
RDS.B
$636K ﹤0.01%
14,680
+691
+5% +$31.2K
ESS icon
1116
Essex Property Trust
ESS
$18.5B
$631K ﹤0.01%
1,792
+496
+38% +$169K
THW
1117
abrdn World Healthcare Fund
THW
$551M
$630K ﹤0.01%
38,681
– –
VCR icon
1118
Vanguard Consumer Discretionary ETF
VCR
$6.18B
$630K ﹤0.01%
1,851
+287
+18% +$96.4K
HLNE icon
1119
Hamilton Lane
HLNE
$5.57B
$629K ﹤0.01%
6,074
-232
-4% -$23.8K
HQY icon
1120
HealthEquity
HQY
$8.75B
$629K ﹤0.01%
14,208
-619
-4% -$36K
DLTR icon
1121
Dollar Tree
DLTR
$25.2B
$627K ﹤0.01%
4,464
+2,289
+105% +$278K
SUSC icon
1122
iShares ESG Aware USD Corporate Bond ETF
SUSC
$1.29B
$627K ﹤0.01%
22,993
-209
-0.9% -$5.74K
AMED
1123
DELISTED
Amedisys
AMED
$626K ﹤0.01%
3,866
+42
+1% +$6.75K
POR icon
1124
Portland General Electric
POR
$5.77B
$626K ﹤0.01%
11,828
+725
+7% +$36.2K
VPL icon
1125
Vanguard FTSE Pacific ETF
VPL
$8.44B
$624K ﹤0.01%
7,994
+284
+4% +$22.7K
43 44
45
46 47

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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.