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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
+512.03%
AUM
$10.6B
AUM Growth
-$28.4M
Cap. Flow
+$48.7M
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
AAPL icon
1
Apple
AAPL
$4.96T
$301M 2.83%
11,039,464
+285,176
+3% +$7.11M
SBUX icon
2
Starbucks
SBUX
$118B
$232M 2.18%
3,884,424
-8,047
-0.2% -$469K
V icon
3
Visa
V
$703B
$226M 2.13%
2,957,428
+20,877
+0.7% +$1.52M
GILD icon
4
Gilead Sciences
GILD
$165B
$212M 1.99%
2,304,139
-89,776
-4% -$8.1M
IDXX icon
5
Idexx Laboratories
IDXX
$44.8B
$194M 1.82%
2,474,263
-33,209
-1% -$2.39M
FAST icon
6
Fastenal
FAST
$54.9B
$158M 1.49%
12,892,536
+70,616
+0.6% +$768K
AMZN icon
7
Amazon
AMZN
$2.44T
$156M 1.47%
5,270,580
+347,740
+7% +$9.87M
MSFT icon
8
Microsoft
MSFT
$2.9T
$138M 1.3%
2,497,108
+704,848
+39% +$36.9M
GOOG icon
9
Alphabet (Google) Class C
GOOG
$4.1T
$134M 1.26%
3,600,120
+139,480
+4% +$5M
AMG icon
10
Affiliated Managers Group
AMG
$9.54B
$133M 1.25%
817,306
+7,046
+0.9% +$983K
SRCL
11
DELISTED
Stericycle Inc
SRCL
$116M 1.09%
917,162
-128,975
-12% -$15M
DHR icon
12
Danaher
DHR
$138B
$114M 1.07%
1,790,383
+127,112
+8% +$7.58M
META icon
13
Meta Platforms (Facebook)
META
$1.48T
$113M 1.07%
994,265
+168,467
+20% +$17.8M
MA icon
14
Mastercard
MA
$497B
$113M 1.07%
1,200,215
-48,352
-4% -$4.28M
WBA
15
DELISTED
Walgreens Boots Alliance
WBA
$111M 1.04%
1,316,916
-757
-0.1% -$60.5K
BMY icon
16
Bristol-Myers Squibb
BMY
$129B
$105M 0.99%
1,649,816
+50,564
+3% +$3.19M
RHT
17
DELISTED
Red Hat Inc
RHT
$98.5M 0.93%
1,322,648
+14,253
+1% +$1.01M
ADBE icon
18
Adobe
ADBE
$105B
$96M 0.9%
1,023,448
+131,506
+15% +$11.4M
SLB icon
19
SLB Ltd
SLB
$72.9B
$92.6M 0.87%
1,255,601
+66,015
+6% +$4.64M
ESRX
20
DELISTED
Express Scripts Holding Company
ESRX
$89.5M 0.84%
1,303,224
-264,095
-17% -$19M
GE icon
21
GE Aerospace
GE
$364B
$87.3M 0.82%
573,157
+76,770
+15% +$10.8M
CELG
22
DELISTED
Celgene Corp
CELG
$86.7M 0.82%
866,497
+38,205
+5% +$3.93M
ECL icon
23
Ecolab
ECL
$79.7B
$86.7M 0.82%
777,210
-8,194
-1% -$871K
SPY icon
24
State Street SPDR S&P 500 ETF Trust
SPY
$772B
$82.4M 0.78%
400,920
+34,168
+9% +$6.67M
ZTS icon
25
Zoetis
ZTS
$32.6B
$81.9M 0.77%
1,848,423
+263,762
+17% +$11.2M
1
2 3 4 5

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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.