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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
+512.03%
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
QCOM icon
126
Qualcomm
QCOM
$159B
$21.6M 0.2%
431,750
-248,296
-37% -$13.2M
MORN icon
127
Morningstar
MORN
$7.46B
$21.6M 0.2%
268,076
-1,401
-0.5% -$114K
CMG icon
128
Chipotle Mexican Grill
CMG
$47.4B
$21.5M 0.2%
2,235,850
-17,400
-0.8% -$213K
MD icon
129
Pediatrix Medical
MD
$2.16B
$21.3M 0.2%
296,856
-78,304
-21% -$5.79M
MDT icon
130
Medtronic
MDT
$111B
$21.2M 0.2%
275,079
+20,870
+8% +$1.57M
MMM icon
131
3M
MMM
$91.4B
$20.9M 0.2%
165,928
-22,104
-12% -$2.84M
PM icon
132
Philip Morris
PM
$292B
$20.5M 0.19%
233,682
-3,804
-2% -$330K
IVZ icon
133
Invesco
IVZ
$13.6B
$20.5M 0.19%
612,120
-3,901
-0.6% -$128K
ABMD
134
DELISTED
Abiomed Inc
ABMD
$20.4M 0.19%
225,637
-24,457
-10% -$2.08M
VZ icon
135
Verizon
VZ
$197B
$19.3M 0.18%
417,036
-1,032
-0.2% -$46.9K
WMT icon
136
Walmart Inc
WMT
$881B
$19.1M 0.18%
935,304
-41,583
-4% -$834K
VNQ icon
137
Vanguard Real Estate ETF
VNQ
$39.3B
$18.6M 0.17%
233,021
+11,507
+5% +$911K
NXTM
138
DELISTED
NxStage Medical Inc.
NXTM
$18.6M 0.17%
847,875
+14,777
+2% +$275K
MMI icon
139
Marcus & Millichap
MMI
$1.16B
$18.4M 0.17%
630,968
+46,113
+8% +$1.72M
SMG icon
140
ScottsMiracle-Gro
SMG
$3.97B
$18M 0.17%
279,254
+5,856
+2% +$388K
CHD icon
141
Church & Dwight Co
CHD
$23.7B
$17.7M 0.17%
417,882
-3,420
-0.8% -$147K
MRK icon
142
Merck
MRK
$316B
$17.6M 0.16%
348,360
+25,408
+8% +$1.28M
IHS
143
DELISTED
IHS INC CL-A COM STK
IHS
$17.3M 0.16%
146,343
+843
+0.6% +$100K
MMP
144
DELISTED
Magellan Midstream Partners, L.P.
MMP
$17.3M 0.16%
254,034
-39,409
-13% -$2.55M
PCP
145
DELISTED
PRECISION CASTPARTS CORP
PCP
$17.2M 0.16%
74,125
-8,242
-10% -$1.91M
BIDU icon
146
Baidu
BIDU
$38.3B
$17M 0.16%
90,180
-4,524
-5% -$834K
TIP icon
147
iShares TIPS Bond ETF
TIP
$14.5B
$16.7M 0.16%
152,208
-14,818
-9% -$1.64M
BRK.A icon
148
Berkshire Hathaway Class A
BRK.A
$1.1T
$16M 0.15%
81
+2
+3% +$403K
DNKN
149
DELISTED
Dunkin' Brands Group, Inc.
DNKN
$15.9M 0.15%
372,540
-167,353
-31% -$7.03M
INTC icon
150
Intel
INTC
$459B
$15.8M 0.15%
459,819
-57,434
-11% -$1.94M
4 5
6
7 8

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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.