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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
+0.39%
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
$10.6B
AUM Growth
-$28.4M
Cap. Flow
+$48.9M
Cap. Flow %
0.46%
Top 10 Hldgs %
17.73%
Holding
1,332
New
89
Increased
456
Reduced
508
Closed
121

Top Buys

Rank Stock Value
1
XRAY icon
Dentsply Sirona
XRAY
+$51.3M
2
MSFT icon
Microsoft
MSFT
+$36.9M
3
PYPL icon
PayPal
PYPL
+$21.2M
4
AMT icon
American Tower
AMT
+$21.2M
5
OMC icon
Omnicom Group
OMC
+$18.3M

Top Sells

Rank Stock Value
1
SIRO
SIRONA DENTAL SYSTEMS INC COM STK
SIRO
+$57.3M
2
WEX icon
WEX
WEX
+$35.3M
3
ARG
Airgas Inc
ARG
+$29.5M
4
SBAC icon
SBA Communications
SBAC
+$19.6M
5
ESRX
Express Scripts Holding Company
ESRX
+$19M

Sector Composition

Rank Sector Weight
1 Healthcare 18.96%
2 Technology 15.24%
3 Industrials 12.81%
4 Financials 11.94%
5 Consumer Discretionary 11.43%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
SRC
1001
DELISTED
SPIRIT REALTY CAPITAL, INC.
SRC
$221K ﹤0.01%
4,400
– –
AKRX
1002
DELISTED
Akorn Inc
AKRX
$221K ﹤0.01%
9,420
-33,093
-78% -$870K
LPSB
1003
DELISTED
LAPORTE BANCORP INC MD COM STK
LPSB
$221K ﹤0.01%
+14,000
New +$209K
IONS icon
1004
Ionis Pharmaceuticals
IONS
$9.01B
$219K ﹤0.01%
5,417
-295
-5% -$12K
HAPN
1005
Happen Inc
HAPN
$2.36B
$219K ﹤0.01%
5,280
+900
+21% +$37.8K
MIXT
1006
DELISTED
MIX TELEMATICS LIMITED
MIXT
$219K ﹤0.01%
55,450
– –
LYG icon
1007
Lloyds Banking Group
LYG
$90.9B
$217K ﹤0.01%
54,841
-85,492
-61% -$331K
TOL icon
1008
Toll Brothers
TOL
$14.5B
$216K ﹤0.01%
7,325
– –
INFN
1009
DELISTED
Infinera Corporation Common Stock
INFN
$216K ﹤0.01%
13,450
– –
REGN icon
1010
Regeneron Pharmaceuticals
REGN
$79.1B
$214K ﹤0.01%
594
-1,489
-71% -$614K
FRC
1011
DELISTED
First Republic Bank
FRC
$213K ﹤0.01%
3,204
-1,455
-31% -$93.2K
PODD icon
1012
Insulet
PODD
$9.23B
$212K ﹤0.01%
6,425
-1,687
-21% -$53K
EOT
1013
Eaton Vance National Municipal Opportunities Trust
EOT
$272M
$210K ﹤0.01%
+9,400
New +$206K
PRF icon
1014
Invesco FTSE RAFI US 1000 ETF
PRF
$9.98B
$210K ﹤0.01%
+11,915
New +$199K
KYNB
1015
Kyntra Bio
KYNB
$28.3M
$209K ﹤0.01%
394
+62
+19% +$30.9K
NOBL icon
1016
ProShares S&P 500 Dividend Aristocrats ETF
NOBL
$11.9B
$209K ﹤0.01%
8,000
-6,000
-43% -$147K
RSPH icon
1017
Invesco S&P 500 Equal Weight Health Care ETF
RSPH
$777M
$209K ﹤0.01%
+14,540
New +$206K
AWH
1018
DELISTED
Allied World Assurance Co Hld Lt
AWH
$209K ﹤0.01%
+5,971
New +$205K
BNDX icon
1019
Vanguard Total International Bond ETF
BNDX
$82.3B
$208K ﹤0.01%
+3,812
New +$205K
OLN icon
1020
Olin
OLN
$2.13B
$208K ﹤0.01%
+11,984
New +$185K
THO icon
1021
Thor Industries
THO
$4.14B
$208K ﹤0.01%
+3,275
New +$179K
TE
1022
DELISTED
TECO ENERGY INC
TE
$208K ﹤0.01%
7,550
– –
OTEX icon
1023
Open Text
OTEX
$6.22B
$207K ﹤0.01%
+8,000
New +$193K
FLG
1024
Flagstar Bank National Association
FLG
$5.96B
$207K ﹤0.01%
4,368
-6,916
-61% -$320K
FLS icon
1025
Flowserve
FLS
$10B
$206K ﹤0.01%
+4,646
New +$192K
39 40
41
42 43

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William Blair & Company's Q1 2016 Portfolio in Review

As of Q1 2016, William Blair & Company held 1,332 positions worth $10.6B, down 0.27% from $10.7B the previous quarter. Its ten largest holdings account for 18% of the portfolio.

William Blair & Company's Q1 2016 filing shows 89 new, 456 increased, 508 reduced and 121 closed positions. Its largest new stake was Willis Towers Watson: 37,173 shares worth $4.41M. The largest sale was SIRONA DENTAL SYSTEMS INC COM STK, an estimated $57.3M.

By sector, the portfolio is most concentrated in Healthcare at 19% of assets, down from 20% a quarter earlier, followed by Technology and Industrials.

  • William Blair & Company's largest Q1 2016 buy was Willis Towers Watson: 37,173 shares worth $4.41M.
  • William Blair & Company added most to Dentsply Sirona in Q1 2016, an estimated $51.3M increase.
  • William Blair & Company's biggest Q1 2016 reduction was WEX, cutting an estimated $35.3M.
  • William Blair & Company fully exited SIRONA DENTAL SYSTEMS INC COM STK in Q1 2016, selling an estimated $57.3M.
  • William Blair & Company's ten largest holdings make up 18% of its $10.6B portfolio in Q1 2016.
  • William Blair & Company opened 89 new positions and closed 121 in Q1 2016.
  • William Blair & Company's portfolio value fell 0.27% quarter-over-quarter to $10.6B.

Based on William Blair & Company's 13F filing for Q1 2016, filed 16 May 2016.