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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
+9.1%
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
$19.5B
AUM Growth
+$2.1B
Cap. Flow
+$465M
Cap. Flow %
2.39%
Top 10 Hldgs %
22.3%
Holding
1,847
New
125
Increased
679
Reduced
598
Closed
120

Top Buys

Rank Stock Value
1
ANET icon
Arista Networks
ANET
+$24M
2
DIS icon
Walt Disney
DIS
+$22.5M
3
PYPL icon
PayPal
PYPL
+$21.1M
4
AXP icon
American Express
AXP
+$18.6M
5
NOW icon
ServiceNow
NOW
+$15.5M

Top Sells

Rank Stock Value
1
CELG
Celgene Corp
CELG
+$25M
2
ULTA icon
Ulta Beauty
ULTA
+$21.8M
3
EOG icon
EOG Resources
EOG
+$20.9M
4
ABMD
Abiomed Inc
ABMD
+$16.3M
5
GRUB
Just Eat Takeaway.com N.V. American Depositary Shares
GRUB
+$11.2M

Sector Composition

Rank Sector Weight
1 Technology 23.46%
2 Healthcare 17.35%
3 Financials 13.04%
4 Consumer Discretionary 9.94%
5 Industrials 9.53%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
TILT icon
926
FlexShares Morningstar US Market Factors Tilt Index Fund
TILT
$2.26B
$597K ﹤0.01%
4,697
– –
MHK icon
927
Mohawk Industries
MHK
$9.22B
$593K ﹤0.01%
4,348
+679
+19% +$92.4K
VTR icon
928
Ventas
VTR
$47.9B
$592K ﹤0.01%
10,258
-13,571
-57% -$852K
MNRL
929
DELISTED
Brigham Minerals, Inc. Class A Common Stock
MNRL
$592K ﹤0.01%
+27,602
New +$537K
PRSP
930
DELISTED
Perspecta Inc. Common Stock
PRSP
$591K ﹤0.01%
+22,346
New +$595K
FLIR
931
DELISTED
FLIR Systems, Inc. (DE) Common Stock
FLIR
$590K ﹤0.01%
11,327
+1,710
+18% +$90.5K
RVTY icon
932
Revvity
RVTY
$12.8B
$589K ﹤0.01%
6,063
-574
-9% -$51.2K
EVRG icon
933
Evergy
EVRG
$19.2B
$588K ﹤0.01%
9,034
+1,264
+16% +$80.6K
SHM icon
934
State Street SPDR Nuveen ICE Short Term Municipal Bond ETF
SHM
$3.47B
$586K ﹤0.01%
11,935
+2,077
+21% +$102K
SIRI icon
935
SiriusXM
SIRI
$10.1B
$586K ﹤0.01%
8,197
-71
-0.9% -$4.78K
LVS icon
936
Las Vegas Sands
LVS
$29.6B
$584K ﹤0.01%
8,466
+3,862
+84% +$241K
BRF icon
937
VanEck Brazil Small-Cap ETF
BRF
$21.4M
$583K ﹤0.01%
21,243
-727
-3% -$17.8K
INSP icon
938
Inspire Medical Systems
INSP
$1.74B
$583K ﹤0.01%
7,851
+3,581
+84% +$230K
DGX icon
939
Quest Diagnostics
DGX
$26.3B
$579K ﹤0.01%
5,420
+120
+2% +$12.5K
ZNGA
940
DELISTED
ZYNGA INC. CL A COMMON
ZNGA
$578K ﹤0.01%
94,447
+82,805
+711% +$512K
BRKL
941
DELISTED
Brookline Bancorp
BRKL
$575K ﹤0.01%
34,956
– –
FCFS icon
942
FirstCash
FCFS
$8.78B
$575K ﹤0.01%
+7,137
New +$600K
ITGR icon
943
Integer Holdings
ITGR
$4.26B
$575K ﹤0.01%
7,152
– –
FEZ icon
944
State Street SPDR EURO STOXX 50 ETF
FEZ
$4.55B
$574K ﹤0.01%
14,060
-8
-0.1% -$315
LM
945
DELISTED
Legg Mason, Inc.
LM
$567K ﹤0.01%
15,785
+2
+0% +$74
HAS icon
946
Hasbro
HAS
$13.2B
$563K ﹤0.01%
5,332
+333
+7% +$34.7K
MTB icon
947
M&T Bank
MTB
$36.2B
$561K ﹤0.01%
3,306
+1,221
+59% +$198K
TIF
948
DELISTED
Tiffany & Co.
TIF
$554K ﹤0.01%
4,149
-202
-5% -$23.9K
HOLX
949
DELISTED
Hologic
HOLX
$544K ﹤0.01%
10,419
+1,238
+13% +$61.6K
TTD icon
950
Trade Desk
TTD
$6.49B
$542K ﹤0.01%
20,880
+5,680
+37% +$128K
36 37
38
39 40

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William Blair & Company's Q4 2019 Portfolio in Review

As of Q4 2019, William Blair & Company held 1,847 positions worth $19.5B, up 12% from $17.4B the previous quarter. Its ten largest holdings account for 22% of the portfolio.

William Blair & Company's Q4 2019 filing shows 125 new, 679 increased, 598 reduced and 120 closed positions. Its largest new stake was Dynatrace: 165,602 shares worth $4.19M. The largest sale was Celgene Corp, an estimated $25M.

By sector, the portfolio is most concentrated in Technology at 23% of assets, up from 23% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q4 2019 buy was Dynatrace: 165,602 shares worth $4.19M.
  • William Blair & Company added most to Arista Networks in Q4 2019, an estimated $24M increase.
  • William Blair & Company's biggest Q4 2019 reduction was Ulta Beauty, cutting an estimated $21.8M.
  • William Blair & Company fully exited Celgene Corp in Q4 2019, selling an estimated $25M.
  • William Blair & Company's ten largest holdings make up 22% of its $19.5B portfolio in Q4 2019.
  • William Blair & Company opened 125 new positions and closed 120 in Q4 2019.
  • William Blair & Company's portfolio value rose 12% quarter-over-quarter to $19.5B.

Based on William Blair & Company's 13F filing for Q4 2019, filed 13 Feb 2020.