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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 (2015Q3)
Portfolio Summary: 1,426 holdings with a total value of $11,559,051,000.
#
Name
Shares
Value ($)
%
Options
Notes
51 UNION PAC CORP 640,048 56,586,000 0.49%
52 V F CORP 829,374 56,571,000 0.49%
53 ILLINOIS TOOL WKS INC 680,260 55,991,000 0.48%
54 DISNEY WALT CO 547,073 55,910,000 0.48%
55 PALO ALTO NETWORKS INC 324,343 55,787,000 0.48%
56 SUNCOR ENERGY INC NEW 2,061,041 55,064,000 0.48%
57 VANGUARD INDEX FDS 548,168 54,975,000 0.48%
58 CHECK POINT SOFTWARE TECHNOLOGIES ORD ILS0.01 684,257 54,282,000 0.47%
59 PERRIGO CO PLC SHS 343,854 54,078,000 0.47%
60 SIGNATURE BANK 382,691 52,643,000 0.46%
61 NORTHERN TRUST 762,398 51,965,000 0.45%
62 ABBOTT LABS 1,290,139 51,889,000 0.45%
63 BRIGHT HORIZONS FAM SOL IN DEL COM 807,246 51,857,000 0.45%
64 AIRGAS INC 556,081 49,674,000 0.43%
65 ZOETIS INC 1,205,021 49,622,000 0.43%
66 UNITED PARCEL SERVICE INC 500,225 49,367,000 0.43%
67 VANGUARD INTL EQUITY INDEX F 1,155,427 49,256,000 0.43%
68 PROTO LABS INC COM 733,017 49,111,000 0.42%
69 GENERAL ELECTRIC CO 1,931,307 48,707,000 0.42%
70 HOME DEPOT INC 421,373 48,664,000 0.42%
71 EXACT SCIENCES CORP 2,654,642 47,757,000 0.41%
72 AMPHENOL CORP NEW 926,827 47,231,000 0.41%
73 AKAMAI TECHNOLOGIES INC 677,687 46,801,000 0.40%
74 CARMAX INC 786,086 46,631,000 0.40%
75 BERKSHIRE HATHAWAY INC DEL 351,815 45,876,000 0.40%
76 FISERV INC 524,116 45,393,000 0.39%
77 WATSCO INC 376,866 44,651,000 0.39%
78 SALLY BEAUTY HLDGS INC 1,869,548 44,401,000 0.38%
79 ABBVIE INC 815,637 44,379,000 0.38%
80 SCHWAB CHARLES CORP 1,542,615 44,057,000 0.38%
81 UNDER ARMOUR INC 437,526 42,344,000 0.37%
82 WORKDAY INC 614,838 42,337,000 0.37%
83 EXXON MOBIL CORP 525,443 39,066,000 0.34%
84 ALLIANCE DATA SYSTEMS CORP 150,823 39,060,000 0.34%
85 Pandora Media Inc 1,820,047 38,839,000 0.34%
86 HEALTHCARE SVCS GRP INC 1,117,531 37,660,000 0.33%
87 JPMORGAN CHASE & CO 614,203 37,447,000 0.32%
88 EQUIFAX INC 384,990 37,412,000 0.32%
89 QUALCOMM INC 680,046 36,538,000 0.32%
90 ROCKWELL COLLINS INC 444,212 36,354,000 0.31%
91 MOBILEYE NV 797,197 36,256,000 0.31%
92 MCCORMICK & CO INC 434,396 35,698,000 0.31%
93 INOGEN INC COM 729,100 35,397,000 0.31%
94 AUTOMATIC DATA PROCESSING IN 440,205 35,374,000 0.31%
95 PROCTER AND GAMBLE CO 488,369 35,132,000 0.30%
96 MEDIVATION INC 804,912 34,208,000 0.30%
97 VANGUARD INDEX FDS 438,639 33,666,000 0.29%
98 NIKE INC 272,850 33,552,000 0.29%
99 ACUITY BRANDS INC 190,293 33,411,000 0.29%
100 ALIGN TECHNOLOGY INC 578,004 32,807,000 0.28%
Page 2 of 29

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001144204-15-064430, filed 2015.11.12).

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.