Dark
Light
System
Institutional Investment Manager
BLAIR WILLIAM & CO/IL
BLAIR WILLIAM & CO/IL (CIK: 0000902367) incorporated in Delaware, located at 150 North Riverside Plaza, Chicago, IL. Institutional holdings reported to the SEC.

Institutional Holdings (2015Q4)
Original 13F HR (0001144204-16-081782) filed in 2016.02.16
#
Name
Shares
Value ($)
%
Options
Notes
1 CBOE HLDGS INC 15,000 973 0.01% Put
2 BUFFALO WILD WINGS INC 500 80 0.00% Put
3 APPLE INC CALL 5,600 589 0.01% Call
4 GOLDCORP INC NEW 35,000 404 0.00% Call
5 EXELON CORP 14,400 397 0.00% Call
6 KINDER MORGAN INC DEL 16,400 243 0.00% Call
7 CHIPOTLE MEXICAN GRILL INC 500 238 0.00% Call
8 BP PLC 3,000 93 0.00% Call
9 HI-CRUSH PARTNERS LP 15,100 87 0.00% Call
10 ROVI CORP 4,000 65 0.00% Call
11 NEWMONT MINING CORP 2,500 44 0.00% Call
12 CYBERARK SOFTWARE LTD 800 36 0.00% Call
13 WHOLE FOODS MKT INC 1,000 33 0.00% Call
14 JOY GLOBAL INC 2,600 31 0.00% Call
15 PANDORA MEDIA INC 1,000 13 0.00% Call
16 TWITTER INC 500 12 0.00% Call
17 GAP INC DEL 500 12 0.00% Call
18 APPLE INC 2,688,572 282,999 2.66%
19 GILEAD SCIENCES INC 2,393,915 242,240 2.27%
20 STARBUCKS CORP 3,892,471 233,664 2.19%
21 VISA INC 2,936,551 227,729 2.14%
22 IDEXX LAB 2,507,472 182,845 1.72%
23 AMAZON COM INC 246,142 166,364 1.56%
24 EXPRESS SCRIPTS HLDG CO 1,567,319 136,999 1.29%
25 ALPHABET INC 173,032 131,310 1.23%
26 FASTENAL CO 3,205,480 130,847 1.23%
27 AFFILIATED MANAGERS GROUP 810,260 129,447 1.22%
28 STERICYCLE INC 1,046,137 126,164 1.18%
29 MASTERCARD INCORPORATED 1,248,567 121,560 1.14%
30 WALGREENS BOOTS ALLIANCE INC 1,317,673 112,206 1.05%
31 BRISTOL MYERS SQUIBB CO 1,599,252 110,012 1.03%
32 RED HAT INC 1,308,395 108,347 1.02%
33 DANAHER CORP DEL 1,117,916 103,831 0.97%
34 MICROSOFT CORP 1,792,260 99,434 0.93%
35 CELGENE CORP 828,292 99,195 0.93%
36 ECOLAB INC 785,404 89,834 0.84%
37 DEXCOM INC 1,085,146 88,873 0.83%
38 FACEBOOK INC 825,798 86,427 0.81%
39 CERNER CORP 1,430,775 86,090 0.81%
40 ULTIMATE SOFTWARE GROUP INCORPORATED 429,854 84,040 0.79%
41 ADOBE INC 891,942 83,788 0.79%
42 SALESFORCE COM INC 1,065,051 83,500 0.78%
43 SCHLUMBERGER LTD 1,189,586 82,973 0.78%
44 WEX INC 891,882 78,842 0.74%
45 VERISK ANALYTICS INC 990,562 76,154 0.72%
46 ZOETIS INC 1,584,661 75,936 0.71%
47 AIRGAS INC 546,674 75,615 0.71%
48 SPDR S&P 500 ETF TR 366,752 74,769 0.70%
49 GENERAL ELECTRIC CO 2,378,905 74,103 0.70%
50 GOLDMAN SACHS GROUP INC 407,708 73,480 0.69%
Page 1 of 26