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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
1401 ADOBE INC 995,749 81,870,000 0.71%
1402 ECOLAB INC 776,672 85,216,000 0.74%
1403 DEXCOM 1,018,485 87,447,000 0.76%
1404 CELGENE CORP 811,161 87,743,000 0.76%
1405 PRA GROUP INC 1,669,363 88,342,000 0.76%
1406 VERISK ANALYTICS INC 1,206,349 89,161,000 0.77%
1407 FACEBOOK INC 1,050,039 94,398,000 0.82%
1408 SCHLUMBERGER LTD 1,398,410 96,448,000 0.83%
1409 GOOGLE INC 159,865 97,264,000 0.84%
1410 ISHARES NASDAQ BIOTECHNOLOGY ETF 157,965 100,840,000 0.87%
1411 CERNER CORP 1,683,711 100,955,000 0.87%
1412 DANAHER CORP DEL 1,229,960 104,805,000 0.91%
1413 WALGREENS BOOTS ALLIANCE INC 1,325,656 110,161,000 0.95%
1414 BRISTOL MYERS SQUIBB CO 1,930,930 114,310,000 0.99%
1415 RED HAT INC 1,636,826 117,654,000 1.02%
1416 FASTENAL CO 3,329,931 121,909,000 1.05%
1417 EXPRESS SCRIPTS HLDG CO 1,582,294 128,102,000 1.11%
1418 MASTERCARD INCORPORATED 1,630,124 146,906,000 1.27%
1419 AFFILIATED MANAGERS GROUP 893,817 152,833,000 1.32%
1420 AMAZON COM INC 298,905 153,006,000 1.32%
1421 STERICYCLE 1,267,093 176,518,000 1.53%
1422 IDEXX LAB 2,534,311 188,172,000 1.63%
1423 VISA INC 2,852,553 198,708,000 1.72%
1424 STARBUCKS CORP 3,697,121 210,144,000 1.82%
1425 GILEAD SCIENCES INC 2,800,131 274,944,000 2.38%
1426 APPLE INC 2,662,539 293,677,000 2.54%
Page 29 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.