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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 (2016Q1)
Portfolio Summary: 1,216 holdings with a total value of $10,622,318,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 APPLE INC 2,759,866 300,797,000 2.83%
2 STARBUCKS CORP 3,884,424 231,899,000 2.18%
3 VISA INC 2,957,428 226,183,000 2.13%
4 GILEAD SCIENCES INC 2,304,139 211,658,000 1.99%
5 IDEXX LAB 2,474,263 193,784,000 1.82%
6 FASTENAL CO 3,223,134 157,933,000 1.49%
7 AMAZON COM INC 263,529 156,441,000 1.47%
8 MICROSOFT CORP 2,497,108 137,914,000 1.30%
9 ALPHABET INC 180,006 134,095,000 1.26%
10 AFFILIATED MANAGERS GROUP 817,306 132,730,000 1.25%
11 STERICYCLE 917,162 115,736,000 1.09%
12 DANAHER CORP DEL 1,203,350 114,149,000 1.07%
13 FACEBOOK INC 994,265 113,445,000 1.07%
14 MASTERCARD INCORPORATED 1,200,215 113,420,000 1.07%
15 WALGREENS BOOTS ALLIANCE INC 1,316,916 110,936,000 1.04%
16 BRISTOL MYERS SQUIBB CO 1,649,816 105,390,000 0.99%
17 RED HAT INC 1,322,648 98,550,000 0.93%
18 ADOBE INC 1,023,448 95,999,000 0.90%
19 SCHLUMBERGER LTD 1,255,601 92,600,000 0.87%
20 EXPRESS SCRIPTS HLDG CO 1,303,224 89,518,000 0.84%
21 GENERAL ELECTRIC CO 2,746,819 87,321,000 0.82%
22 CELGENE CORP 866,497 86,727,000 0.82%
23 ECOLAB INC 777,210 86,674,000 0.82%
24 SPDR S&P 500 ETF TR 400,920 82,396,000 0.78%
25 ZOETIS INC 1,848,423 81,940,000 0.77%
26 Ultimate Software Group Inc 421,936 81,644,000 0.77%
27 SALESFORCE COM INC 1,100,713 81,265,000 0.77%
28 CERNER CORP 1,502,950 79,596,000 0.75%
29 DEXCOM 1,134,015 77,010,000 0.72%
30 VERISK ANALYTICS INC 942,980 75,363,000 0.71%
31 DISNEY WALT CO 744,972 73,982,000 0.70%
32 TRACTOR SUPPLY CO 808,682 73,153,000 0.69%
33 JOHNSON & JOHNSON 663,238 71,762,000 0.68%
34 WORKDAY A 929,061 71,389,000 0.67%
35 O REILLY AUTOMOTIVE INC NEW 260,274 71,226,000 0.67%
36 ALPHABET INC 91,353 69,693,000 0.66%
37 WATSCO INC 507,906 68,435,000 0.64%
38 GUIDEWIRE SOFTWARE INC 1,239,277 67,516,000 0.64%
39 ILLINOIS TOOL WKS INC 649,601 66,544,000 0.63%
40 GOLDMAN SACHS GROUP INC 419,114 65,792,000 0.62%
41 EOG RES INC 893,764 64,868,000 0.61%
42 VANGUARD INDEX FDS 606,334 64,543,000 0.61%
43 COLGATE PALMOLIVE CO 909,596 64,262,000 0.60%
44 GRAINGER W W INC 274,487 64,073,000 0.60%
45 COSTAR GROUP 339,377 63,861,000 0.60%
46 PRAXAIR INC 557,542 63,810,000 0.60%
47 PALO ALTO NETWORKS 387,885 63,280,000 0.60%
48 COSTCO WHSL CORP NEW 391,874 61,751,000 0.58%
49 LOWES COS INC 781,129 59,170,000 0.56%
50 CHECK POINT SOFTWARE TECH LT 674,243 58,976,000 0.56%
Page 1 of 25

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001144204-16-101979, filed 2016.05.16).

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.