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 (2016Q2)
Portfolio Summary: 1,241 holdings with a total value of $10,724,600,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 APPLE INC 2,884,229 263,253,000 2.45%
2 IDEXX LAB 2,322,694 215,685,000 2.01%
3 VISA INC 2,900,557 215,134,000 2.01%
4 STARBUCKS CORP 3,719,446 212,455,000 1.98%
5 GILEAD SCIENCES INC 2,370,178 186,393,000 1.74%
6 AMAZON COM INC 251,364 179,881,000 1.68%
7 MICROSOFT CORP 2,766,399 141,557,000 1.32%
8 DANAHER CORP DEL 1,365,853 137,951,000 1.29%
9 FASTENAL CO 3,073,529 136,434,000 1.27%
10 BRISTOL MYERS SQUIBB CO 1,789,583 131,624,000 1.23%
11 ALPHABET INC 178,303 123,404,000 1.15%
12 FACEBOOK INC 973,117 111,208,000 1.04%
13 WALGREENS BOOTS ALLIANCE INC 1,317,740 109,728,000 1.02%
14 MASTERCARD INCORPORATED 1,202,378 105,881,000 0.99%
15 AFFILIATED MANAGERS GROUP 738,373 103,941,000 0.97%
16 RED HAT INC 1,397,518 101,460,000 0.95%
17 CERNER CORP 1,719,703 100,775,000 0.94%
18 SCHLUMBERGER LTD 1,261,836 99,786,000 0.93%
19 ADOBE INC 1,021,228 97,823,000 0.91%
20 ECOLAB INC 779,375 92,434,000 0.86%
21 ZOETIS INC 1,910,011 90,649,000 0.85%
22 GENERAL ELECTRIC CO 2,906,058 87,734,000 0.82%
23 DEXCOM 1,100,251 87,283,000 0.81%
24 Ultimate Software Group Inc 411,011 86,432,000 0.81%
25 EXPRESS SCRIPTS HLDG CO 1,094,488 82,962,000 0.77%
26 JOHNSON & JOHNSON 680,202 82,508,000 0.77%
27 STERICYCLE 781,559 81,376,000 0.76%
28 SALESFORCE COM INC 1,020,858 81,066,000 0.76%
29 CELGENE CORP 812,329 80,120,000 0.75%
30 SPDR S&P 500 ETF TR 370,154 77,538,000 0.72%
31 VERISK ANALYTICS INC 956,129 77,523,000 0.72%
32 TRACTOR SUPPLY CO 840,613 76,647,000 0.71%
33 WATSCO INC 535,243 75,303,000 0.70%
34 GUIDEWIRE SOFTWARE INC 1,208,182 74,617,000 0.70%
35 EOG RES INC 887,417 74,028,000 0.69%
36 DISNEY WALT CO 748,281 73,197,000 0.68%
37 COSTAR GROUP 329,097 71,960,000 0.67%
38 O REILLY AUTOMOTIVE INC NEW 261,961 71,018,000 0.66%
39 COSTCO WHSL CORP NEW 446,148 70,063,000 0.65%
40 TRANSDIGM GROUP INC COM 265,293 69,955,000 0.65%
41 COLGATE PALMOLIVE CO 946,245 69,265,000 0.65%
42 WORKDAY A 910,838 68,012,000 0.63%
43 ILLINOIS TOOL WKS INC 625,708 65,174,000 0.61%
44 ALPHABET INC 91,717 64,526,000 0.60%
45 GOLDMAN SACHS GROUP INC 510,191 64,315,000 0.60%
46 VANGUARD INDEX FDS 584,707 62,681,000 0.58%
47 PRAXAIR INC 556,501 62,545,000 0.58%
48 GRAINGER W W INC 274,611 62,405,000 0.58%
49 INTERCONTINENTAL EXCHANGE IN 240,205 61,483,000 0.57%
50 LOWES COS INC 762,318 60,353,000 0.56%
Page 1 of 25

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001144204-16-117114, filed 2016.08.08).

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.