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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
+512.03%
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
AZTA icon
1676
Azenta
AZTA
$1.46B
– –
-9,080
Closed -$336K
AZZ icon
1677
AZZ Inc
AZZ
$4.61B
– –
-6,235
Closed -$272K
BBAX icon
1678
JPMorgan BetaBuilders Developed Asia Pacific-ex Japan ETF
BBAX
$6.81B
– –
-524
Closed -$26K
BBCA icon
1679
JPMorgan BetaBuilders Canada ETF
BBCA
$11.1B
– –
-3,508
Closed -$176K
BBCP icon
1680
Concrete Pumping Holdings
BBCP
$493M
– –
-16,135
Closed -$64K
BBEU icon
1681
JPMorgan BetaBuilders Europe ETF
BBEU
$9.48B
– –
-1,573
Closed -$74K
BBJP icon
1682
JPMorgan BetaBuilders Japan ETF
BBJP
$18.6B
– –
-2,719
Closed -$129K
BCE icon
1683
BCE
BCE
$20.4B
– –
-24,729
Closed -$1.2M
BGC icon
1684
BGC Group
BGC
$5.23B
– –
-27,959
Closed -$154K
BLUE
1685
DELISTED
bluebird bio
BLUE
– –
-180
Closed -$214K
CASS icon
1686
Cass Information Systems
CASS
$732M
– –
-4,022
Closed -$217K
CBUS icon
1687
Cibus
CBUS
$145M
– –
-408
Closed -$115K
CCOR icon
1688
Core Alternative Capital
CCOR
$28.1M
– –
-3,828
Closed -$104K
CF icon
1689
CF Industries
CF
$18B
– –
-4,098
Closed -$202K
CLB icon
1690
Core Laboratories
CLB
$506M
– –
-6,292
Closed -$293K
CNA icon
1691
CNA Financial
CNA
$14.2B
– –
-12,162
Closed -$599K
CNK icon
1692
Cinemark Holdings
CNK
$4.42B
– –
-25,821
Closed -$998K
CRWD icon
1693
CrowdStrike
CRWD
$217B
– –
-19,200
Closed -$280K
DAKT icon
1694
Daktronics
DAKT
$1.06B
– –
-23,800
Closed -$176K
DGRE icon
1695
WisdomTree Trust WisdomTree Emerging Markets Quality Dividend Growth Fund
DGRE
$147M
– –
-200
Closed -$5K
EAF icon
1696
GrafTech
EAF
$199M
– –
-2,782
Closed -$356K
EIDO icon
1697
iShares MSCI Indonesia ETF
EIDO
$492M
– –
-110
Closed -$3K
EPAC icon
1698
Enerpac Tool Group
EPAC
$1.88B
– –
-10,160
Closed -$243K
ESS icon
1699
Essex Property Trust
ESS
$18.4B
– –
-710
Closed -$232K
FFIN icon
1700
First Financial Bankshares
FFIN
$5.08B
– –
-8,770
Closed -$292K
66 67
68
69 70

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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.