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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
PTON icon
426
Peloton Interactive
PTON
$2.49B
$6.58M 0.02%
184,045
+4,324
+2% +$264K
MET icon
427
MetLife
MET
$62.1B
$6.56M 0.02%
104,964
+41,409
+65% +$2.6M
SO icon
428
Southern Company
SO
$107B
$6.53M 0.02%
95,185
+3,564
+4% +$227K
AMP icon
429
Ameriprise Financial
AMP
$48.8B
$6.5M 0.02%
21,531
+8,688
+68% +$2.57M
IWR icon
430
iShares Russell Mid-Cap ETF
IWR
$57.4B
$6.49M 0.02%
78,204
+117
+0.1% +$9.6K
TIG
431
DELISTED
Trean Insurance Group, Inc. Common Stock
TIG
$6.45M 0.02%
723,963
-68,143
-9% -$638K
FNF icon
432
Fidelity National Financial
FNF
$13.5B
$6.44M 0.02%
128,339
+1,686
+1% +$80.6K
MRSH
433
Marsh
MRSH
$91.5B
$6.4M 0.02%
36,831
+1,509
+4% +$251K
ABB
434
DELISTED
ABB Ltd
ABB
$6.35M 0.02%
166,255
-17,062
-9% -$599K
CERN
435
DELISTED
Cerner Corp
CERN
$6.33M 0.02%
68,166
-2,608
-4% -$198K
PRF icon
436
Invesco FTSE RAFI US 1000 ETF
PRF
$10B
$6.33M 0.02%
184,320
+49,220
+36% +$1.65M
BBY icon
437
Best Buy
BBY
$17.3B
$6.21M 0.02%
61,175
+8,880
+17% +$1.01M
WPC icon
438
W.P. Carey
WPC
$16.4B
$6.16M 0.02%
76,612
+13,372
+21% +$1.02M
SEDG icon
439
SolarEdge
SEDG
$1.95B
$6.08M 0.02%
21,654
+927
+4% +$293K
UNF icon
440
Unifirst Corp
UNF
$5.25B
$5.97M 0.02%
28,362
-6,133
-18% -$1.26M
NOBL icon
441
ProShares S&P 500 Dividend Aristocrats ETF
NOBL
$12B
$5.96M 0.02%
121,450
-1,800
-1% -$84.9K
VBR icon
442
Vanguard Morningstar Small-Cap Value ETF
VBR
$37.9B
$5.89M 0.02%
32,947
+2,253
+7% +$401K
WSC icon
443
WillScot Mobile Mini Holdings
WSC
$4.41B
$5.89M 0.02%
144,166
-2,000
-1% -$73.8K
IWN icon
444
iShares Russell 2000 Value ETF
IWN
$14.6B
$5.81M 0.02%
35,009
+6,447
+23% +$1.07M
HSY icon
445
Hershey
HSY
$36.6B
$5.78M 0.02%
29,851
+530
+2% +$96K
F icon
446
Ford
F
$55.7B
$5.77M 0.02%
277,819
+19,552
+8% +$360K
TRV icon
447
Travelers Companies
TRV
$80.2B
$5.74M 0.02%
36,678
-8,741
-19% -$1.37M
VGK icon
448
Vanguard FTSE Europe ETF
VGK
$31.4B
$5.7M 0.02%
83,456
-1,640
-2% -$111K
AIG icon
449
American International
AIG
$41.3B
$5.67M 0.02%
99,654
+44,969
+82% +$2.56M
BOTZ icon
450
Global X Robotics & Artificial Intelligence ETF
BOTZ
$3.51B
$5.66M 0.02%
157,461
+10,558
+7% +$389K
16 17
18
19 20

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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.