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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
MGK icon
501
Vanguard Morningstar Mega Cap Growth ETF
MGK
$34B
$1.65M 0.02%
99,090
– –
DXJ icon
502
WisdomTree Japan Hedged Equity Fund
DXJ
$7.34B
$1.64M 0.02%
32,801
-920
-3% -$49K
SHAK icon
503
Shake Shack
SHAK
$2.91B
$1.64M 0.02%
41,412
+33,360
+414% +$1.46M
IWO icon
504
iShares Russell 2000 Growth ETF
IWO
$14.9B
$1.63M 0.02%
11,710
+501
+4% +$71.1K
CAI
505
DELISTED
CAI International, Inc.
CAI
$1.61M 0.02%
160,100
+8,760
+6% +$93.5K
D icon
506
Dominion Energy
D
$59.8B
$1.6M 0.02%
23,701
+724
+3% +$50K
RNG icon
507
RingCentral
RNG
$5.09B
$1.59M 0.01%
67,470
-12,400
-16% -$267K
AKRX
508
DELISTED
Akorn Inc
AKRX
$1.59M 0.01%
42,513
+33,827
+389% +$1.06M
ABB
509
DELISTED
ABB Ltd
ABB
$1.58M 0.01%
88,928
+6,423
+8% +$118K
WY icon
510
Weyerhaeuser
WY
$18.5B
$1.56M 0.01%
52,102
+3,579
+7% +$108K
RDS.B
511
DELISTED
Royal Dutch Shell PLC ADS Class B
RDS.B
$1.55M 0.01%
33,783
-6,508
-16% -$329K
EEMV icon
512
iShares MSCI Emerging Markets Min Vol Factor ETF
EEMV
$3.53B
$1.55M 0.01%
31,946
+1,514
+5% +$77.3K
CIVB icon
513
Civista Bancshares
CIVB
$601M
$1.55M 0.01%
120,522
– –
NUVA
514
DELISTED
NuVasive, Inc.
NUVA
$1.54M 0.01%
28,511
+500
+2% +$25.5K
PUK icon
515
Prudential
PUK
$34.5B
$1.54M 0.01%
35,240
-46,013
-57% -$2.05M
PFPT
516
DELISTED
Proofpoint, Inc.
PFPT
$1.54M 0.01%
23,655
+17,725
+299% +$1.19M
PNRA
517
DELISTED
Panera Bread Co
PNRA
$1.52M 0.01%
7,825
-1,583
-17% -$294K
AXA
518
DELISTED
AXA ADS (1 ORD SHS)
AXA
$1.52M 0.01%
55,769
-79,450
-59% -$2.17M
GLOB icon
519
Globant
GLOB
$1.53B
$1.51M 0.01%
40,304
-1,850
-4% -$64.1K
WAT icon
520
Waters Corp
WAT
$38.5B
$1.5M 0.01%
11,181
+250
+2% +$32.1K
LMT icon
521
Lockheed Martin
LMT
$134B
$1.49M 0.01%
6,859
+705
+11% +$153K
SLCA
522
DELISTED
U.S. SILICA HOLDINGS, INC.
SLCA
$1.49M 0.01%
79,514
+3,369
+4% +$63.1K
TTE icon
523
TotalEnergies
TTE
$190B
$1.47M 0.01%
20,110,390,072
-19,579,548,985
-49% -$1.96M
AMP icon
524
Ameriprise Financial
AMP
$49.7B
$1.47M 0.01%
13,786
-105
-0.8% -$11.7K
EHC icon
525
Encompass Health
EHC
$12.3B
$1.47M 0.01%
52,955
-186,638
-78% -$5.31M
19 20
21
22 23

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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.