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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
CCL icon
1026
Carnival Corporation Ltd
CCL
$39.7B
$444K ﹤0.01%
8,728
+3,034
+53% +$136K
NBHC icon
1027
National Bank Holdings
NBHC
$1.9B
$443K ﹤0.01%
12,591
-1
-0% -$35
TEVA icon
1028
Teva Pharmaceuticals
TEVA
$41.2B
$443K ﹤0.01%
+45,166
New +$403K
LAMR icon
1029
Lamar Advertising Co
LAMR
$16.3B
$441K ﹤0.01%
4,943
-41
-0.8% -$3.43K
ARES icon
1030
Ares Management
ARES
$30.9B
$440K ﹤0.01%
+12,333
New +$383K
GRA
1031
DELISTED
W.R. Grace & Co.
GRA
$440K ﹤0.01%
+6,306
New +$423K
KBH icon
1032
KB Home
KBH
$3.59B
$438K ﹤0.01%
12,778
-322
-2% -$11.1K
ROG icon
1033
Rogers Corp
ROG
$2.4B
$438K ﹤0.01%
+3,508
New +$474K
HASI icon
1034
Hannon Armstrong Sustainable Infrastructure Capital
HASI
$5.2B
$436K ﹤0.01%
13,555
+1,353
+11% +$40.2K
PRGO icon
1035
Perrigo
PRGO
$1.78B
$435K ﹤0.01%
8,429
+327
+4% +$17.1K
SLAB icon
1036
Silicon Laboratories
SLAB
$7.23B
$434K ﹤0.01%
3,745
+125
+3% +$13.7K
SPYV icon
1037
State Street SPDR Portfolio S&P 500 Value ETF
SPYV
$36.8B
$432K ﹤0.01%
12,381
+6,981
+129% +$233K
OEF icon
1038
iShares S&P 100 ETF
OEF
$20.6B
$429K ﹤0.01%
2,974
– –
AL
1039
DELISTED
Air Lease Corp
AL
$428K ﹤0.01%
9,010
-1,322
-13% -$59.4K
VERU icon
1040
Veru
VERU
$37.4M
$428K ﹤0.01%
12,763
– –
AOS icon
1041
A.O. Smith
AOS
$8.7B
$426K ﹤0.01%
+8,948
New +$434K
ACIA
1042
DELISTED
Acacia Communications Inc
ACIA
$424K ﹤0.01%
6,254
– –
FTDR icon
1043
Frontdoor
FTDR
$6.38B
$423K ﹤0.01%
8,928
+100
+1% +$4.68K
IMMU
1044
DELISTED
Immunomedics Inc
IMMU
$423K ﹤0.01%
20,000
– –
BWX icon
1045
State Street SPDR Bloomberg International Treasury Bond ETF
BWX
$1.32B
$422K ﹤0.01%
14,646
+6,668
+84% +$191K
IEX icon
1046
IDEX
IEX
$17.3B
$421K ﹤0.01%
2,447
-795
-25% -$129K
DWM icon
1047
WisdomTree International Equity Fund
DWM
$697M
$420K ﹤0.01%
7,858
-3,656
-32% -$189K
PLD icon
1048
Prologis
PLD
$133B
$420K ﹤0.01%
4,713
-4,082
-46% -$362K
PHG icon
1049
Philips
PHG
$26.1B
$418K ﹤0.01%
+10,786
New +$390K
STIM icon
1050
Neuronetics
STIM
$166M
$417K ﹤0.01%
92,933
-52,565
-36% -$327K
40 41
42
43 44

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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.