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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 (2015Q2)
Portfolio Summary: 145 holdings with a total value of $4,710,104,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 AKORN INC 4,497,550 196,363,000 4.17%
2 EPAM SYS INC 2,292,031 163,262,000 3.47%
3 MALLINCKRODT PUB LTD CO SHS 1,166,595 137,331,000 2.92%
4 MIDDLEBY CORP 1,197,599 134,407,000 2.85%
5 FORTINET 2,835,308 117,184,000 2.49%
6 A O SMITH 1,524,704 109,748,000 2.33%
7 PRA GROUP INC 1,723,382 107,384,000 2.28%
8 ACADIA HEALTHCARE COMPANY IN 1,327,667 103,996,000 2.21%
9 WATSCO INC 794,530 98,315,000 2.09%
10 FIREEYE INC 1,987,326 97,200,000 2.06%
11 PROOFPOINT INC 1,468,539 93,502,000 1.99%
12 SYNCHRONOSS TECHNOLOGIES INC COM 2,003,936 91,640,000 1.95%
13 OMNICELL COM COM 2,425,477 91,464,000 1.94%
14 MAXIMUS INC 1,321,276 86,847,000 1.84%
15 BURLINGTON STORES INC 1,592,507 81,537,000 1.73%
16 VIRTUSA CORPORATION 1,523,941 78,331,000 1.66%
17 WASTE CONNECTIONS INC COM 1,598,417 75,317,000 1.60%
18 BANKUNITED INC 2,086,434 74,965,000 1.59%
19 TEXAS ROADHOUSE INC 1,997,011 74,748,000 1.59%
20 SOLERA HOLDINGS INC 1,608,980 71,696,000 1.52%
21 UNITED NATURAL FOODSINC 1,121,895 71,443,000 1.52%
22 SPECTRANETICS CORP 3,092,702 71,163,000 1.51%
23 GLOBUS MED INC 2,746,154 70,493,000 1.50%
24 MONRO INC COM 1,084,653 67,422,000 1.43%
25 WOLVERINE WORLD WIDE INC COM 2,351,282 66,965,000 1.42%
26 Nimble Storage 2,379,308 66,763,000 1.42%
27 SILICON LABORATORIES INC 1,197,422 64,673,000 1.37%
28 LA QUINTA HLDGS INC 2,665,442 60,906,000 1.29%
29 ELLIE MAE INCORPORATED 863,077 60,234,000 1.28%
30 SIRONA DENTAL SYS INC 582,618 58,506,000 1.24%
31 TRIMAS CORP COM NEW 1,954,127 57,843,000 1.23%
32 BEACON ROOFING SUPPLY INC 1,726,587 57,357,000 1.22%
33 RAMBUS INC DEL COM 3,829,451 55,489,000 1.18%
34 APPLE INC 442,085 55,448,000 1.18%
35 ANSYS 585,842 53,453,000 1.13%
36 ALIGN TECHNOLOGY INC 803,429 50,384,000 1.07%
37 LKQ CORP 1,662,917 50,295,000 1.07%
38 LIGAND PHARMACEUTICALS INC 484,973 48,933,000 1.04%
39 SAGE THERAPEUTICS 660,895 48,245,000 1.02%
40 DEPOMED INC 2,092,922 44,913,000 0.95%
41 ACCELERON PHARMA 1,405,239 44,462,000 0.94%
42 STIFEL FINANCIAL CP 762,780 44,043,000 0.94%
43 QLIK TECHNOLOGIES INC COM 1,195,086 41,780,000 0.89%
44 WEX INC 365,061 41,606,000 0.88%
45 DECKERS OUTDOOR CORP 553,270 39,819,000 0.85%
46 CALAMP CORP 2,026,162 36,998,000 0.79%
47 HOMEAWAY INC 1,150,435 35,802,000 0.76%
48 GULFPORT ENERGY CORP 865,961 34,855,000 0.74%
49 CLARCOR Inc 556,467 34,635,000 0.74%
50 CORE-MARK HLDG CO INC COM 577,303 34,206,000 0.73%
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Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001140361-15-029553, filed 2015.08.04).

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.