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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 (2015Q3)
Portfolio Summary: 1,068 holdings with a total value of $48,988,219,000.
#
Name
Shares
Value ($)
%
Options
Notes
1001 TRANSDIGM GROUP INC 897,596 190,658,000 0.39%
1002 ISHARES TR 1,647,000 191,200,000 0.39%
1003 ISHARES NASDAQ BIOTECHNOLOGY ETF 301,235 192,299,000 0.39%
1004 ROYAL DUTCH SHELL PLC-A SHS 8,239,534 194,846,000 0.40%
1005 ROCKWELL COLLINS INC 2,386,005 195,271,000 0.40%
1006 AMBEV SA 40,171,063 196,838,000 0.40%
1007 COSTAR GROUP 1,137,597 196,873,000 0.40%
1008 STEINHOFF INTL HOLDINGS LTD 32,325,881 198,486,000 0.41%
1009 UNILEVER PLC ORD 4,909,985 199,770,000 0.41%
1010 WOLSELEY PLC 3,424,756 200,141,000 0.41%
1011 NXP SEMICONDUCTORS N V 2,304,786 200,678,000 0.41%
1012 TOTAL SA 4,491,635 201,554,000 0.41%
1013 POLARIS INDS INC 1,686,566 202,169,000 0.41%
1014 MASTERCARD INCORPORATED 2,244,085 202,237,000 0.41%
1015 ITV 54,693,431 203,805,000 0.42%
1016 CHECK POINT SOFTWARE TECHNOLOGIES ORD ILS0.01 2,596,524 205,982,000 0.42%
1017 HOUSING DEVELOPMENT FINANCE 11,168,274 206,343,000 0.42%
1018 WPP PLC 9,996,408 207,902,000 0.42%
1019 TOWERS WATSON & CO 1,781,246 209,083,000 0.43%
1020 Wal-Mart de Mexico SAB de CV 85,105,213 209,464,000 0.43%
1021 ALIGN TECHNOLOGY INC 3,692,895 209,609,000 0.43%
1022 SIGNATURE BANK 1,533,265 210,916,000 0.43%
1023 ANSYS 2,397,467 211,313,000 0.43%
1024 WILLIAMS SONOMA INC 2,775,952 211,944,000 0.43%
1025 SBA COMMUNICATIONS CORP 2,029,529 212,573,000 0.43%
1026 SHIRE 3,139,479 214,190,000 0.44%
1027 NETEASE INC 1,790,355 215,057,000 0.44%
1028 SUNCOR ENERGY INC NEW 8,293,291 220,875,000 0.45%
1029 BORGWARNER INC 5,332,933 221,797,000 0.45%
1030 VERISK ANALYTICS INC 3,026,663 223,701,000 0.46%
1031 MACQUARIE GP LTD 4,167,725 224,368,000 0.46%
1032 SIRONA DENTAL SYS INC 2,421,472 226,020,000 0.46%
1033 AXA 9,381,834 226,571,000 0.46%
1034 HOYA CORPORATION 6,960,464 226,833,000 0.46%
1035 EASYJET PLC 8,465,875 227,879,000 0.47%
1036 GUIDEWIRE SOFTWARE INC 4,405,553 231,644,000 0.47%
1037 PARTNERS GROUP HOLDING AG 685,397 231,657,000 0.47%
1038 MOODYS CORP 2,419,386 237,584,000 0.48%
1039 BROOKFIELD ASSET MGMT INC 7,670,345 241,156,000 0.49%
1040 SAMPO OYJ SER'A'NPV 4,995,935 241,359,000 0.49%
1041 CONTINENTAL AG 1,162,854 246,756,000 0.50%
1042 CERNER CORP 4,194,400 251,496,000 0.51%
1043 OLD DOMINION FREIGHT LINE IN 4,152,071 253,276,000 0.52%
1044 ALIMEN COUCHE 5,680,769 260,035,000 0.53%
1045 SPDR S&P 500 ETF TR 1,384,365 265,286,000 0.54%
1046 NOVO NORDISK AS SER'B' 5,082,343 272,397,000 0.56%
1047 NOVARTIS AG REGD 2,998,096 274,312,000 0.56%
1048 MEDNAX INC 3,587,054 275,450,000 0.56%
1049 NASPERS 'N' 2,205,068 275,998,000 0.56%
1050 RED HAT INC 3,996,206 287,247,000 0.59%
Page 21 of 22

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001144204-15-064414, 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.