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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 (2016Q3)
Portfolio Summary: 442 holdings with a total value of $26,422,916,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 TAIWAN SEMICONDUCTOR MFG LTD 21,102,575 645,528,000 2.44%
2 ALIBABA GROUP HLDG LTD 4,586,625 485,219,000 1.84%
3 NETEASE INC 1,740,270 419,022,000 1.59%
4 SPDR S&P 500 ETF TR 1,900,824 411,148,000 1.56%
5 TRANSDIGM GROUP INC COM 1,154,303 333,732,000 1.26%
6 COSTAR GROUP 1,516,128 328,287,000 1.24%
7 AMAZON COM INC 389,009 325,721,000 1.23%
8 ISHARES TR 3,052,700 322,426,000 1.22%
9 MEDNAX INC 4,857,774 321,828,000 1.22%
10 VANTIV INC 5,681,191 319,681,000 1.21%
11 ALPHABET INC 389,165 312,912,000 1.18%
12 NXP SEMICONDUCTORS N V 3,061,073 312,260,000 1.18%
13 OLD DOMINION FREIGHT LINE IN 4,382,227 300,665,000 1.14%
14 SBA COMMUNICATIONS CORPORATION 2,670,130 299,482,000 1.13%
15 CERNER CORP 4,680,458 289,018,000 1.09%
16 CENTENE CORP DEL 4,163,804 278,808,000 1.06%
17 AKAMAI TECH 5,107,868 270,666,000 1.02%
18 MICROSOFT CORP 4,669,109 268,941,000 1.02%
19 RED HAT INC 3,317,646 268,165,000 1.01%
20 BROOKFIELD ASSET MGMT INC 7,588,116 266,950,000 1.01%
21 AFFILIATED MANAGERS GROUP 1,841,800 266,508,000 1.01%
22 GUIDEWIRE SOFTWARE INC 4,206,691 252,317,000 0.95%
23 ZOETIS INC 4,774,219 248,307,000 0.94%
24 INTERCONTINENTAL EXCHANGE IN 899,281 242,230,000 0.92%
25 BOOZ ALLEN HAMILTON HLDG COR 7,576,555 239,495,000 0.91%
26 SIX FLAGS ENTMT CORP NEW 4,413,596 236,613,000 0.90%
27 HDFC BANK LTD 3,206,080 230,485,000 0.87%
28 MASTERCARD INCORPORATED 2,233,299 227,283,000 0.86%
29 FACEBOOK INC 1,745,707 223,922,000 0.85%
30 CSRA INC 8,259,947 222,193,000 0.84%
31 METTLER-TOLEDO 529,105 222,134,000 0.84%
32 CREDICORP LTD 1,434,755 218,398,000 0.83%
33 MAXIMUS INC 3,851,477 217,840,000 0.82%
34 ISHARES TR 5,772,400 216,176,000 0.82% Put
35 MEAD JOHNSON NUTRITION CO 2,728,925 215,612,000 0.82%
36 BALL CORP 2,601,167 213,166,000 0.81%
37 SIGNATURE BANK 1,787,195 211,693,000 0.80%
38 TORONTO DOMINION BK ONT 4,714,297 208,963,000 0.79%
39 NEWELL BRANDS 3,856,148 203,065,000 0.77%
40 VERISK ANALYTICS INC 2,466,335 200,464,000 0.76%
41 HOME DEPOT INC 1,504,485 193,597,000 0.73%
42 IDEXX LAB 1,711,947 192,988,000 0.73%
43 UNION PAC CORP 1,903,862 185,684,000 0.70%
44 HealthSouth Corp 4,412,972 179,034,000 0.68%
45 J2 GLOBAL INC 2,618,405 174,412,000 0.66%
46 O REILLY AUTOMOTIVE INC NEW 616,810 172,775,000 0.65%
47 MIDDLEBY CORP 1,392,915 172,192,000 0.65%
48 WILLIS TOWERS WATSON PLC LTD SHS 1,262,260 167,590,000 0.63%
49 ISHARES TR 4,445,100 166,469,000 0.63%
50 DUN & BRADSTREET 1,193,373 163,039,000 0.62%
Page 1 of 9

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001144204-16-133825, filed 2016.11.14).

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.