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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
+23.04%
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
$16.4B
AUM Growth
+$2.69B
Cap. Flow
+$306M
Cap. Flow %
1.86%
Top 10 Hldgs %
21%
Holding
1,770
New
129
Increased
754
Reduced
490
Closed
65

Top Buys

Rank Stock Value
1
FISV
Fiserv Inc
FISV
+$65.4M
2
P
Everpure Inc
P
+$35.3M
3
PYPL icon
PayPal
PYPL
+$30.4M
4
BA icon
Boeing
BA
+$28.3M
5
TWLO icon
Twilio
TWLO
+$24.2M

Top Sells

Rank Stock Value
1
TTE icon
TotalEnergies
TTE
+$155M
2
RHT
Red Hat Inc
RHT
+$73.4M
3
ULTI
Ultimate Software Group Inc
ULTI
+$70.6M
4
INGN icon
Inogen
INGN
+$25.8M
5
CELG
Celgene Corp
CELG
+$20.1M

Sector Composition

Rank Sector Weight
1 Technology 22.65%
2 Healthcare 17.38%
3 Financials 12.48%
4 Consumer Discretionary 9.87%
5 Industrials 9.37%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
PAAS icon
1001
Pan American Silver
PAAS
$21.6B
$435K ﹤0.01%
32,804
+11,062
+51% +$155K
AZTA icon
1002
Azenta
AZTA
$1.48B
$429K ﹤0.01%
14,639
+929
+7% +$27.9K
EZU icon
1003
iShare MSCI Eurozone ETF
EZU
$9.91B
$429K ﹤0.01%
11,105
+1,944
+21% +$73K
ST icon
1004
Sensata Technologies
ST
$6.79B
$428K ﹤0.01%
9,503
+1,742
+22% +$82.6K
XLC icon
1005
State Street Communication Services Select Sector SPDR ETF
XLC
$22.4B
$428K ﹤0.01%
9,159
+7,793
+570% +$355K
VKTXW
1006
DELISTED
Viking Therapeutics, Inc.
VKTXW
$427K ﹤0.01%
50,980
-10,525
-17% -$71.9K
AYX
1007
DELISTED
Alteryx Inc
AYX
$426K ﹤0.01%
+5,075
New +$366K
FCCO icon
1008
First Community Corp
FCCO
$322M
$424K ﹤0.01%
22,224
-2,000
-8% -$39.8K
FMC icon
1009
FMC
FMC
$1.33B
$424K ﹤0.01%
5,515
+1,128
+26% +$82.8K
CNSL
1010
DELISTED
Consolidated Communications Holdings, Inc.
CNSL
$424K ﹤0.01%
21,700
– –
CBUS icon
1011
Cibus
CBUS
$138M
$423K ﹤0.01%
481
– –
TPR icon
1012
Tapestry
TPR
$32.8B
$422K ﹤0.01%
+12,994
New +$455K
IMGN
1013
DELISTED
Immunogen Inc
IMGN
$419K ﹤0.01%
74,907
+9,434
+14% +$40.9K
LM
1014
DELISTED
Legg Mason, Inc.
LM
$418K ﹤0.01%
15,279
+1,105
+8% +$31.7K
AZPN
1015
DELISTED
ASPEN TECHNOLOGY INC
AZPN
$418K ﹤0.01%
+4,013
New +$418K
VSS icon
1016
Vanguard FTSE All-World ex-US Small-Cap Index Fund
VSS
$11.9B
$417K ﹤0.01%
4,009
-418
-9% -$42.5K
LSXMA
1017
DELISTED
Liberty Media Corporation Series A Liberty SiriusXM Common Stock
LSXMA
$416K ﹤0.01%
15,084
+10,487
+228% +$299K
ALSN icon
1018
Allison Transmission
ALSN
$9.82B
$415K ﹤0.01%
+9,247
New +$439K
GDDY icon
1019
GoDaddy
GDDY
$11.5B
$415K ﹤0.01%
5,525
+565
+11% +$39.7K
MOAT icon
1020
VanEck Morningstar Wide Moat ETF
MOAT
$12.3B
$413K ﹤0.01%
8,863
+2,966
+50% +$134K
CGC
1021
Canopy Growth
CGC
$410M
$404K ﹤0.01%
+932
New +$408K
FXI icon
1022
iShares China Large-Cap ETF
FXI
$4.31B
$403K ﹤0.01%
9,112
+300
+3% +$12.8K
BLUE
1023
DELISTED
bluebird bio
BLUE
$402K ﹤0.01%
197
+39
+25% +$68.7K
GLNG icon
1024
Golar LNG
GLNG
$5.13B
$401K ﹤0.01%
19,023
-12,682
-40% -$280K
AGO icon
1025
Assured Guaranty
AGO
$3.34B
$400K ﹤0.01%
9,000
– –
39 40
41
42 43

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William Blair & Company's Q1 2019 Portfolio in Review

As of Q1 2019, William Blair & Company held 1,770 positions worth $16.4B, up 20% from $13.7B the previous quarter. Its ten largest holdings account for 21% of the portfolio.

William Blair & Company's Q1 2019 filing shows 129 new, 754 increased, 490 reduced and 65 closed positions. Its largest new stake was Western Midstream Partners: 147,267 shares worth $4.62M. The largest sale was TotalEnergies, an estimated $155M.

By sector, the portfolio is most concentrated in Technology at 23% of assets, up from 21% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q1 2019 buy was Western Midstream Partners: 147,267 shares worth $4.62M.
  • William Blair & Company added most to Fiserv Inc in Q1 2019, an estimated $65.4M increase.
  • William Blair & Company's biggest Q1 2019 reduction was TotalEnergies, cutting an estimated $155M.
  • William Blair & Company fully exited MB Financial Corp in Q1 2019, selling an estimated $7.72M.
  • William Blair & Company's ten largest holdings make up 21% of its $16.4B portfolio in Q1 2019.
  • William Blair & Company opened 129 new positions and closed 65 in Q1 2019.
  • William Blair & Company's portfolio value rose 20% quarter-over-quarter to $16.4B.

Based on William Blair & Company's 13F filing for Q1 2019, filed 14 May 2019.