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Institutional Investment Manager
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC (CIK: 0001644956). Institutional holdings reported to the SEC.

Institutional Holdings (2017Q1)
Portfolio Summary: 432 holdings with a total value of $26,476,249,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 ALIBABA GROUP HLDG LTD 7,603,566 819,893,000 3.10%
2 TAIWAN SEMICONDUCTOR MFG LTD 17,666,683 580,174,000 2.19%
3 SPDR S&P 500 ETF TR 1,996,424 470,637,000 1.78%
4 VANTIV INC 5,769,789 369,959,000 1.40%
5 COPART INC 5,500,545 340,649,000 1.29%
6 COSTAR GROUP 1,621,963 336,103,000 1.27%
7 AMAZON COM INC 357,049 316,538,000 1.20%
8 SIX FLAGS ENTMT CORP NEW 5,271,644 313,610,000 1.18%
9 RED HAT INC 3,544,151 306,569,000 1.16%
10 ALPHABET INC 356,382 302,141,000 1.14%
11 ISHARES TR 2,619,000 301,028,000 1.14%
12 SBA COMMUNICATIONS CORP NEW 2,466,382 296,878,000 1.12%
13 MICROSOFT CORP 4,427,282 291,581,000 1.10%
14 TRACTOR SUPPLY CO 4,098,428 282,669,000 1.07%
15 CSRA INC 9,515,724 278,716,000 1.05%
16 BWX TECHNOLOGIES INC COM 5,853,746 278,638,000 1.05%
17 BOOZ ALLEN HAMILTON HLDG COR 7,762,874 274,728,000 1.04%
18 MAXIMUS INC 4,416,279 274,693,000 1.04%
19 SUNCOR ENERGY INC NEW 8,794,169 269,247,000 1.02%
20 CHECK POINT SOFTWARE TECH LT 2,560,834 262,895,000 0.99%
21 AFFILIATED MANAGERS GROUP 1,583,415 259,585,000 0.98%
22 BALL CORP 3,492,613 259,361,000 0.98%
23 ZOETIS INC 4,823,746 257,443,000 0.97%
24 VAIL RESORTS INC 1,312,463 251,862,000 0.95%
25 GUIDEWIRE SOFTWARE INC 4,389,763 247,275,000 0.93%
26 SIGNATURE BANK 1,665,936 247,208,000 0.93%
27 CANADIAN NATL RY CO 3,322,147 244,625,000 0.92%
28 CENTENE CORP DEL 3,391,955 241,711,000 0.91%
29 O REILLY AUTOMOTIVE INC NEW 874,507 235,977,000 0.89%
30 MASTERCARD INCORPORATED 2,095,110 235,637,000 0.89%
31 VEEVA SYS INC 4,376,516 224,428,000 0.85%
32 CREDICORP LTD 1,369,894 223,704,000 0.84%
33 FACEBOOK INC 1,556,974 221,168,000 0.84%
34 VERISK ANALYTICS INC 2,723,663 220,998,000 0.83%
35 INTERCONTINENTAL EXCHANGE IN 3,688,501 220,831,000 0.83%
36 HDFC BANK LTD 2,899,480 218,099,000 0.82%
37 J2 GLOBAL INC 2,595,745 217,809,000 0.82%
38 UNITEDHEALTH GROUP INC 1,317,807 216,134,000 0.82%
39 UNION PAC CORP 2,032,590 215,292,000 0.81%
40 OLD DOMINION FREIGHT LINE IN 2,433,694 208,251,000 0.79%
41 CTRIP COM INTL LTD 4,083,783 200,718,000 0.76%
42 NETEASE INC 678,123 192,587,000 0.73%
43 NEWELL BRANDS 3,978,616 187,671,000 0.71%
44 HOME DEPOT INC 1,260,118 185,023,000 0.70%
45 STARBUCKS CORP 3,134,322 183,013,000 0.69%
46 LIGAND PHARMACEUTICALS INC 1,728,178 182,910,000 0.69%
47 ALIGN TECHNOLOGY INC 1,573,601 180,508,000 0.68%
48 EQUIFAX INC 1,305,063 178,454,000 0.67%
49 MIDDLEBY CORP 1,288,997 175,884,000 0.66%
50 CANADIAN NAT RES LTD 5,343,804 174,477,000 0.66%
Page 1 of 9

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001144204-17-026093, filed 2017.05.10).

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.