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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
DOX icon
1476
Amdocs
DOX
$6.22B
$250K ﹤0.01%
3,339
-355
-10% -$26.7K
AFRM icon
1477
Affirm
AFRM
$25.2B
$247K ﹤0.01%
2,456
– –
GVI icon
1478
iShares Intermediate Government/Credit Bond ETF
GVI
$3.78B
$246K ﹤0.01%
2,165
-72
-3% -$8.23K
PUBM icon
1479
PubMatic
PUBM
$810M
$245K ﹤0.01%
+7,200
New +$235K
TDIV icon
1480
First Trust NASDAQ Technology Dividend Index Fund
TDIV
$4.44B
$245K ﹤0.01%
3,900
-380
-9% -$22.7K
HWM icon
1481
Howmet Aerospace
HWM
$112B
$243K ﹤0.01%
7,649
+44
+0.6% +$1.36K
CPK icon
1482
Chesapeake Utilities
CPK
$3.21B
$242K ﹤0.01%
+1,662
New +$221K
AMN icon
1483
AMN Healthcare
AMN
$1.4B
$241K ﹤0.01%
+1,969
New +$219K
DSGR icon
1484
Distribution Solutions Group
DSGR
$1.61B
$241K ﹤0.01%
8,800
– –
CPAA
1485
DELISTED
Conyers Park III Acquisition Corp. Class A Common Stock
CPAA
$240K ﹤0.01%
+24,600
New +$241K
AGI icon
1486
Alamos Gold
AGI
$13.9B
$239K ﹤0.01%
31,043
+2,428
+8% +$18.8K
TTC icon
1487
Toro Company
TTC
$9.49B
$239K ﹤0.01%
2,390
-288
-11% -$28.7K
IPGP icon
1488
IPG Photonics
IPGP
$3.84B
$238K ﹤0.01%
1,385
-4
-0.3% -$661
HYFM icon
1489
Hydrofarm Holdings
HYFM
$7.62M
$237K ﹤0.01%
838
-2,301
-73% -$781K
ON icon
1490
ON Semiconductor
ON
$31.6B
$237K ﹤0.01%
+3,490
New +$198K
SNY icon
1491
Sanofi
SNY
$104B
$237K ﹤0.01%
+4,722
New +$234K
SIEN
1492
DELISTED
Sientra, Inc.
SIEN
$237K ﹤0.01%
6,465
-992
-13% -$48.1K
DWM icon
1493
WisdomTree International Equity Fund
DWM
$697M
$236K ﹤0.01%
4,356
+9
+0.2% +$482
GHC icon
1494
Graham Holdings Company
GHC
$5.02B
$236K ﹤0.01%
+375
New +$221K
NSIT icon
1495
Insight Enterprises
NSIT
$4.38B
$235K ﹤0.01%
2,200
-30
-1% -$2.98K
GNTX icon
1496
Gentex
GNTX
$5.07B
$234K ﹤0.01%
6,725
-20
-0.3% -$710
AN icon
1497
AutoNation
AN
$6.92B
$233K ﹤0.01%
1,996
-80
-4% -$9.63K
GLBE icon
1498
Global E Online
GLBE
$7.11B
$233K ﹤0.01%
+3,675
New +$221K
IWX icon
1499
iShares Russell Top 200 Value ETF
IWX
$4.07B
$232K ﹤0.01%
3,305
– –
RPV icon
1500
Invesco S&P 500 Pure Value ETF
RPV
$1.68B
$232K ﹤0.01%
2,865
-60
-2% -$4.77K
58 59
60
61 62

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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.