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Institutional Investment Manager
OAK RIDGE INVESTMENTS LLC
OAK RIDGE INVESTMENTS LLC (CIK: 0001054554) incorporated in Delaware, located at 10 South Lasalle Street, Chicago, IL. Institutional holdings reported to the SEC.

Institutional Holdings (2015Q1)
Portfolio Summary: 150 holdings with a total value of $4,460,288,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 AKORN INC 4,482,992 212,987,000 4.78%
2 MALLINCKRODT PUB LTD CO SHS 1,164,760 147,516,000 3.31%
3 EPAM SYS INC 2,173,013 133,184,000 2.99%
4 MIDDLEBY CORP 1,169,911 120,092,000 2.69%
5 A O SMITH 1,521,660 99,912,000 2.24%
6 WATSCO INC 767,969 96,534,000 2.16%
7 ACADIA HEALTHCARE COMPANY IN 1,290,147 92,375,000 2.07%
8 PRA GROUP INC 1,689,997 91,801,000 2.06%
9 FORTINET 2,600,321 90,882,000 2.04%
10 SYNCHRONOSS TECHNOLOGIES INC COM 1,871,252 88,810,000 1.99%
11 SPECTRANETICS CORP 2,386,312 82,948,000 1.86%
12 MAXIMUS INC 1,210,172 82,884,000 1.86%
13 OMNICELL COM COM 2,349,472 82,467,000 1.85%
14 UNITED NATURAL FOODSINC 1,069,850 82,422,000 1.85%
15 SOLERA HOLDINGS INC 1,560,124 80,596,000 1.81%
16 WOLVERINE WORLD WIDE INC COM 2,344,943 78,439,000 1.76%
17 PROOFPOINT INC 1,305,069 77,286,000 1.73%
18 WASTE CONNECTIONS INC COM 1,592,741 76,675,000 1.72%
19 FIREEYE INC 1,927,792 75,666,000 1.70%
20 CARDTRONICS INC COM 2,008,898 75,534,000 1.69%
21 TEXAS ROADHOUSE INC 1,926,806 70,194,000 1.57%
22 MONRO INC COM 1,059,758 68,937,000 1.55%
23 GLOBUS MED INC 2,670,850 67,412,000 1.51%
24 BANKUNITED INC 1,991,329 65,197,000 1.46%
25 VIRTUSA CORPORATION 1,465,697 60,651,000 1.36%
26 SILICON LABORATORIES INC 1,194,600 60,650,000 1.36%
27 TRIMAS CORP COM NEW 1,873,844 57,696,000 1.29%
28 APPLE INC 443,091 55,134,000 1.24%
29 SIRONA DENTAL SYS INC 581,920 52,367,000 1.17%
30 BEACON ROOFING SUPPLY INC 1,662,274 52,029,000 1.17%
31 ANSYS 583,359 51,446,000 1.15%
32 Nimble Storage 2,246,487 50,119,000 1.12%
33 ELLIE MAE INCORPORATED 860,635 47,602,000 1.07%
34 RAMBUS INC DEL COM 3,630,743 45,657,000 1.02%
35 DEPOMED INC 2,013,088 45,114,000 1.01%
36 ACCELERON PHARMA 1,162,325 44,238,000 0.99%
37 ALIGN TECHNOLOGY INC 801,397 43,103,000 0.97%
38 LKQ CORP 1,661,161 42,459,000 0.95%
39 KERYX BIOPHARMACEUTICALS INCORPORATED 3,286,844 41,841,000 0.94%
40 STIFEL FINANCIAL CP 725,280 40,434,000 0.91%
41 DECKERS OUTDOOR CORP 551,550 40,192,000 0.90%
42 GULFPORT ENERGY CORP 864,886 39,707,000 0.89%
43 WEX INC 351,561 37,744,000 0.85%
44 CLARCOR Inc 555,395 36,690,000 0.82%
45 ACTUANT CORP 1,520,109 36,088,000 0.81%
46 VITAMIN SHOPPE INC 876,008 36,083,000 0.81%
47 QLIK TECHNOLOGIES INC COM 1,137,189 35,401,000 0.79%
48 LIGAND PHARMACEUTICALS INC 451,311 34,801,000 0.78%
49 WAGEWORKS INC COM 579,207 30,889,000 0.69%
50 CALAMP CORP 1,885,721 30,530,000 0.68%
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Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001140361-15-019152, filed 2015.05.12).

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.