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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
PHYS icon
626
Sprott Physical Gold
PHYS
$15.3B
$1.8M 0.01%
148,195
– –
IJJ icon
627
iShares S&P Mid-Cap 400 Value ETF
IJJ
$8.9B
$1.8M 0.01%
21,078
+296
+1% +$24.3K
VMW
628
DELISTED
VMware, Inc
VMW
$1.79M 0.01%
11,820
+8,577
+264% +$1.34M
AEP icon
629
American Electric Power
AEP
$68.2B
$1.79M 0.01%
18,959
+3,489
+23% +$322K
IBB icon
630
iShares Biotechnology ETF
IBB
$9.53B
$1.79M 0.01%
14,871
-564
-4% -$62.9K
ALL icon
631
Allstate
ALL
$69.6B
$1.79M 0.01%
15,904
-7,129
-31% -$778K
EXC icon
632
Exelon
EXC
$46.7B
$1.78M 0.01%
54,740
+412
+0.8% +$13.3K
SWK icon
633
Stanley Black & Decker
SWK
$15.3B
$1.77M 0.01%
10,695
+565
+6% +$87.5K
WTFC icon
634
Wintrust Financial
WTFC
$10.7B
$1.77M 0.01%
24,912
+7,184
+41% +$479K
GAIN icon
635
Gladstone Investment Corp
GAIN
$671M
$1.76M 0.01%
132,958
+6,392
+5% +$86.5K
PEN icon
636
Penumbra
PEN
$12.8B
$1.76M 0.01%
10,721
+4,717
+79% +$750K
GOGO icon
637
Gogo Inc
GOGO
$492M
$1.75M 0.01%
273,614
+19,758
+8% +$115K
TT icon
638
Trane Technologies
TT
$105B
$1.75M 0.01%
13,144
-175
-1% -$22.2K
KHC icon
639
Kraft Heinz
KHC
$29.6B
$1.74M 0.01%
54,222
+14,379
+36% +$435K
GBT
640
DELISTED
Global Blood Therapeutics, Inc.
GBT
$1.74M 0.01%
21,904
-29,591
-57% -$1.75M
LMNX
641
DELISTED
Luminex Corp
LMNX
$1.74M 0.01%
75,150
-7,600
-9% -$157K
OSBC icon
642
Old Second Bancorp
OSBC
$1.31B
$1.74M 0.01%
128,959
-14,829
-10% -$185K
EEFT icon
643
Euronet Worldwide
EEFT
$2.73B
$1.73M 0.01%
10,991
+6,562
+148% +$991K
HZNP
644
DELISTED
Horizon Therapeutics Public Limited Company Ordinary Shares
HZNP
$1.72M 0.01%
47,475
+35,817
+307% +$1.1M
HEP
645
DELISTED
Holly Energy Partners, L.P.
HEP
$1.72M 0.01%
77,482
+7,940
+11% +$180K
A icon
646
Agilent Technologies
A
$39.9B
$1.71M 0.01%
20,085
+7,421
+59% +$584K
MTX icon
647
Minerals Technologies
MTX
$2.34B
$1.7M 0.01%
29,467
– –
DLN icon
648
WisdomTree US LargeCap Dividend Fund
DLN
$6.37B
$1.7M 0.01%
32,010
-2,410
-7% -$123K
DBX icon
649
Dropbox
DBX
$8.06B
$1.69M 0.01%
94,417
-68,125
-42% -$1.28M
SCHH icon
650
Schwab US REIT ETF
SCHH
$11.4B
$1.69M 0.01%
73,446
+2,390
+3% +$55.7K
24 25
26
27 28

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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.