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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
TRUP icon
1376
Trupanion
TRUP
$1.18B
$330K ﹤0.01%
2,500
-75
-3% -$8.74K
USFR
1377
DELISTED
WisdomTree Bloomberg Floating Rate Treasury Fund
USFR
$330K ﹤0.01%
13,139
-9,682
-42% -$243K
ABM icon
1378
ABM Industries
ABM
$2.84B
$327K ﹤0.01%
8,000
– –
FCCO icon
1379
First Community Corp
FCCO
$322M
$326K ﹤0.01%
15,620
– –
BIO icon
1380
Bio-Rad Laboratories Class A
BIO
$9.42B
$324K ﹤0.01%
429
+79
+23% +$59.1K
PINS icon
1381
Pinterest
PINS
$13.4B
$324K ﹤0.01%
8,907
+483
+6% +$21.5K
WEBR
1382
DELISTED
Weber Inc.
WEBR
$324K ﹤0.01%
+25,062
New +$372K
FTDR icon
1383
Frontdoor
FTDR
$6.26B
$323K ﹤0.01%
8,807
+1,160
+15% +$44K
STEM icon
1384
Stem
STEM
$52.7M
$323K ﹤0.01%
852
+56
+7% +$24.3K
IYK icon
1385
iShares US Consumer Staples ETF
IYK
$1.41B
$322K ﹤0.01%
4,821
– –
NARI
1386
DELISTED
Inari Medical, Inc. Common Stock
NARI
$321K ﹤0.01%
3,517
+387
+12% +$33.2K
RGF
1387
DELISTED
The Real Good Food Company, Inc. Class A Common Stock
RGF
$321K ﹤0.01%
+4,327
New +$409K
EGIO
1388
DELISTED
Edgio, Inc. Common Stock
EGIO
$321K ﹤0.01%
2,343
– –
FLRN icon
1389
State Street SPDR Bloomberg Investment Grade Floating Rate ETF
FLRN
$3.09B
$319K ﹤0.01%
10,425
-688
-6% -$21.1K
MGC icon
1390
Vanguard Morningstar Mega Cap ETF
MGC
$10.4B
$319K ﹤0.01%
+1,897
New +$309K
AEF
1391
abrdn Emerging Markets Equity Income Fund
AEF
$367M
$318K ﹤0.01%
40,143
-189
-0.5% -$1.55K
FIRY
1392
Firy Inc
FIRY
$163M
$318K ﹤0.01%
2,139
-668
-24% -$128K
MXCT icon
1393
MaxCyte
MXCT
$126M
$315K ﹤0.01%
+30,908
New +$332K
DXJ icon
1394
WisdomTree Japan Hedged Equity Fund
DXJ
$7.42B
$314K ﹤0.01%
5,022
-146
-3% -$9.17K
DIV icon
1395
Global X SuperDividend US ETF
DIV
$783M
$312K ﹤0.01%
15,000
+9,500
+173% +$193K
UFPI icon
1396
UFP Industries
UFPI
$5.19B
$312K ﹤0.01%
3,396
-10
-0.3% -$841
PENN icon
1397
PENN Entertainment
PENN
$2.71B
$310K ﹤0.01%
5,972
-3,344
-36% -$203K
STER
1398
DELISTED
Sterling Check Corp. Common Stock
STER
$310K ﹤0.01%
+15,094
New +$357K
FNDX icon
1399
Schwab Fundamental US Large Company Index ETF
FNDX
$27.3B
$309K ﹤0.01%
15,828
+15,246
+2,620% +$289K
WLY icon
1400
John Wiley & Sons Class A
WLY
$2.66B
$309K ﹤0.01%
+5,401
New +$292K
54 55
56
57 58

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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.