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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
+5.93%
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
$10.7B
AUM Growth
-$908M
Cap. Flow
-$1.39B
Cap. Flow %
-13.04%
Top 10 Hldgs %
17.51%
Holding
1,529
New
105
Increased
364
Reduced
634
Closed
286

Top Buys

Rank Stock Value
1
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$66.7M
2
G icon
Genpact
G
+$27.6M
3
ZTS icon
Zoetis
ZTS
+$17.2M
4
MBLY
Mobileye N.V.
MBLY
+$16.2M
5
PLAY icon
Dave & Buster's
PLAY
+$13.9M

Top Sells

Rank Stock Value
1
GOOG icon
Alphabet (Google) Class C
GOOG
+$104M
2
GILD icon
Gilead Sciences
GILD
+$42.3M
3
MA icon
Mastercard
MA
+$37.4M
4
MJN
Mead Johnson Nutrition Company
MJN
+$37.4M
5
AMZN icon
Amazon
AMZN
+$33.3M

Sector Composition

Rank Sector Weight
1 Healthcare 19.61%
2 Technology 14.78%
3 Industrials 12.48%
4 Financials 12.35%
5 Consumer Discretionary 11.45%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
VBK icon
826
Vanguard Morningstar Small-Cap Growth ETF
VBK
$24.4B
$431K ﹤0.01%
3,554
-123
-3% -$15.2K
N
827
DELISTED
Netsuite Inc
N
$431K ﹤0.01%
5,104
-350
-6% -$29.9K
FFNM
828
DELISTED
FIRST FEDERAL OF NORTHERN MICHIGAN BANCORP, INC.
FFNM
$429K ﹤0.01%
71,292
– –
IFX
829
DELISTED
INFINEON TECH AG ADS(REP1 ORD)
IFX
$428K ﹤0.01%
29,242
-223,940
-88% -$3.28M
MGEE icon
830
MGE Energy Inc
MGEE
$3.07B
$423K ﹤0.01%
9,135
-225
-2% -$9.64K
SPNC
831
DELISTED
Spectranetics Corp
SPNC
$423K ﹤0.01%
28,150
-117,153
-81% -$1.55M
BOH icon
832
Bank of Hawaii
BOH
$3.13B
$418K ﹤0.01%
6,654
-128
-2% -$8.4K
ORBC
833
DELISTED
ORBCOMM, Inc.
ORBC
$418K ﹤0.01%
57,694
+3,620
+7% +$23.2K
EMLP icon
834
First Trust North American Energy Infrastructure Fund
EMLP
$4.11B
$415K ﹤0.01%
20,610
-200
-1% -$4.36K
VAL
835
DELISTED
Valspar
VAL
$409K ﹤0.01%
4,942
– –
FTA icon
836
First Trust Large Cap Value AlphaDEX Fund
FTA
$1.4B
$407K ﹤0.01%
10,608
– –
CIEN icon
837
Ciena
CIEN
$58.7B
$404K ﹤0.01%
19,560
-3,468
-15% -$79.7K
PRI icon
838
Primerica
PRI
$9.99B
$404K ﹤0.01%
8,567
-66
-0.8% -$3.23K
GG.WS.A
839
CALL
DELISTED
GOLDCORP INC SERIES A WARRANTS EXP 5/30/2007
GG.WS.A
$404K ﹤0.01%
+35,000
New +$404K
STR
840
DELISTED
QUESTAR CORP
STR
$403K ﹤0.01%
20,730
-189
-0.9% -$3.71K
CASS icon
841
Cass Information Systems
CASS
$740M
$402K ﹤0.01%
10,328
-134
-1% -$5.26K
CGNX icon
842
Cognex
CGNX
$11.5B
$401K ﹤0.01%
23,800
-224
-0.9% -$4K
STJ
843
DELISTED
St Jude Medical
STJ
$401K ﹤0.01%
6,497
-12,525
-66% -$790K
BTI icon
844
British American Tobacco
BTI
$129B
$399K ﹤0.01%
7,248
-584
-7% -$33.5K
ABM icon
845
ABM Industries
ABM
$2.87B
$398K ﹤0.01%
14,017
-42,701
-75% -$1.23M
STWD icon
846
Starwood Property Trust
STWD
$6.01B
$398K ﹤0.01%
19,384
-412
-2% -$8.47K
EXC icon
847
CALL
Exelon
EXC
$47.2B
$397K ﹤0.01%
20,189
+18,086
+860% +$367K
VGSH icon
848
Vanguard Short-Term Treasury ETF
VGSH
$29.3B
$397K ﹤0.01%
6,550
– –
HXL icon
849
Hexcel
HXL
$7.77B
$396K ﹤0.01%
8,534
-87,005
-91% -$4.02M
EMB icon
850
iShares JPMorgan USD Emerging Markets Bond ETF
EMB
$14.7B
$395K ﹤0.01%
3,732
-1,154
-24% -$124K
32 33
34
35 36

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William Blair & Company's Q4 2015 Portfolio in Review

As of Q4 2015, William Blair & Company held 1,529 positions worth $10.7B, down 7.9% from $11.6B the previous quarter. Its ten largest holdings account for 18% of the portfolio.

William Blair & Company withdrew a net $1.39B in Q4 2015, closing 286 positions and reducing 634 holdings. Its most notable exit was Barracuda Networks, Inc., an estimated $7.62M position sold in full.

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

Against the trend, William Blair & Company opened a new position in Alphabet (Google) Class A worth $70.1M.

  • William Blair & Company's largest Q4 2015 buy was Alphabet (Google) Class A: 1,802,460 shares worth $70.1M.
  • William Blair & Company added most to Zoetis in Q4 2015, an estimated $17.2M increase.
  • William Blair & Company's biggest Q4 2015 reduction was Alphabet (Google) Class C, cutting an estimated $104M.
  • William Blair & Company fully exited Barracuda Networks, Inc. in Q4 2015, selling an estimated $7.62M.
  • William Blair & Company's ten largest holdings make up 18% of its $10.7B portfolio in Q4 2015.
  • William Blair & Company opened 105 new positions and closed 286 in Q4 2015.
  • William Blair & Company's portfolio value fell 7.9% quarter-over-quarter to $10.7B.

Based on William Blair & Company's 13F filing for Q4 2015, filed 16 Feb 2016.