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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
DIVO icon
1026
Amplify CWP Enhanced Dividend Income ETF
DIVO
$7.78B
$815K ﹤0.01%
+21,345
New +$790K
HALO icon
1027
Halozyme
HALO
$12.2B
$814K ﹤0.01%
20,251
+34
+0.2% +$1.27K
ACHC icon
1028
Acadia Healthcare
ACHC
$2.94B
$812K ﹤0.01%
13,381
-6,933
-34% -$413K
GWX icon
1029
State Street SPDR S&P International Small Cap ETF
GWX
$913M
$805K ﹤0.01%
21,307
– –
BMO icon
1030
Bank of Montreal
BMO
$127B
$801K ﹤0.01%
7,432
-782
-10% -$84.3K
IR icon
1031
Ingersoll Rand
IR
$33.7B
$799K ﹤0.01%
12,920
+1,007
+8% +$57.3K
KD icon
1032
Kyndryl
KD
$3.05B
$796K ﹤0.01%
+43,968
New +$949K
SIX
1033
DELISTED
Six Flags Entertainment Corp.
SIX
$795K ﹤0.01%
18,675
-188
-1% -$7.83K
CHE icon
1034
Chemed
CHE
$7.22B
$790K ﹤0.01%
1,494
+310
+26% +$149K
RACE icon
1035
Ferrari
RACE
$72.5B
$789K ﹤0.01%
+3,047
New +$751K
TXG icon
1036
10x Genomics
TXG
$6.61B
$789K ﹤0.01%
5,297
-2,644
-33% -$405K
MQ icon
1037
Marqeta
MQ
$1.66B
$788K ﹤0.01%
+11,468
New +$1.03M
XRAY icon
1038
Dentsply Sirona
XRAY
$2.43B
$788K ﹤0.01%
14,133
-2,445
-15% -$134K
ELF icon
1039
e.l.f. Beauty
ELF
$5.81B
$781K ﹤0.01%
23,512
+13,443
+134% +$417K
CDRO icon
1040
Codere Online
CDRO
$408M
$779K ﹤0.01%
+129,468
New +$866K
CAG icon
1041
Conagra Brands
CAG
$7.23B
$774K ﹤0.01%
22,664
+2,686
+13% +$88K
NXST icon
1042
Nexstar Media Group
NXST
$5.97B
$773K ﹤0.01%
+5,122
New +$794K
HASI icon
1043
Hannon Armstrong Sustainable Infrastructure Capital
HASI
$5.2B
$771K ﹤0.01%
14,514
+1,213
+9% +$70.1K
PFGC icon
1044
Performance Food Group
PFGC
$18B
$771K ﹤0.01%
16,801
+5,087
+43% +$231K
STIM icon
1045
Neuronetics
STIM
$166M
$770K ﹤0.01%
172,586
+14,067
+9% +$68.9K
SWKS icon
1046
Skyworks Solutions
SWKS
$10.6B
$768K ﹤0.01%
4,950
-1,213
-20% -$194K
PSCE icon
1047
Invesco S&P SmallCap Energy ETF
PSCE
$97.7M
$765K ﹤0.01%
21,899
-4,179
-16% -$162K
PEG icon
1048
Public Service Enterprise Group
PEG
$37.7B
$764K ﹤0.01%
11,444
+1,332
+13% +$84.3K
PIE icon
1049
Invesco Dorsey Wright Emerging Markets Momentum ETF
PIE
$244M
$764K ﹤0.01%
29,620
– –
REGN icon
1050
Regeneron Pharmaceuticals
REGN
$80.8B
$764K ﹤0.01%
1,209
-505
-29% -$310K
40 41
42
43 44

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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.