Dark
Light
System
Security
CARDIOVASCULAR SYS INC DEL COM
CARDIOVASCULAR SYS INC DEL COM. Institutional holdings reported to the SEC.

Institutional Holders (2014Q1)
Portfolio Summary: 138 Institutional holders with a total value of $637,930,972.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 NEXT CENTURY GROWTH INVESTORS LLC 1,627,367 51,733,000 8.11%
2 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 1,194,940 37,987,143 5.95%
3 WADDELL & REED FINANCIAL INC 1,150,600 36,577,000 5.73%
4 FMR LLC 963,637 30,634,000 4.80%
5 WELLS FARGO & COMPANY/MN 818,361 26,015,000 4.08%
6 VANGUARD GROUP INC 813,858 25,873,000 4.06%
7 ALLIANCEBERNSTEIN L.P. 803,768 25,552,000 4.01%
8 BlackRock Fund Advisors 798,167 25,374,000 3.98%
9 COLUMBIA PARTNERS L.L.C. INVESTMENT MANAGEMENT 536,076 17,041,000 2.67%
10 IRONWOOD INVESTMENT MANAGEMENT LLC 530,089 16,852,000 2.64%
11 JENNISON ASSOCIATES LLC 463,451 14,733,000 2.31%
12 LOOMIS SAYLES & CO L P 452,920 14,398,000 2.26%
13 STATE STREET CORP 440,642 14,012,000 2.20%
14 SAC Capital Advisors LP 415,582 13,211,000 2.07%
15 COLUMBUS CIRCLE INVESTORS 391,845 12,457,000 1.95%
16 Redmile Group, LLC 391,627 12,450,000 1.95%
17 OppenheimerFunds, Inc. 385,220 12,246,000 1.92%
18 BlackRock Institutional Trust Company, N.A. 372,856 11,853,000 1.86%
19 WALL STREET ASSOCIATES 369,100 11,734,000 1.84%
20 NORTHERN TRUST CORP 340,955 10,838,000 1.70%
21 NORTHPOINTE CAPITAL LLC 335,367 10,661,000 1.67%
22 OBERWEIS ASSET MANAGEMENT INC/ 307,531 9,776,000 1.53%
23 WASATCH ADVISORS LP 264,436 8,406,000 1.32%
24 FIRST MANHATTAN CO. LLC. 260,014 8,265,000 1.30%
25 CASTLEARK MANAGEMENT LLC 259,270 8,242,000 1.29%
26 LORD, ABBETT & CO. LLC 244,378 7,769,000 1.22%
27 CR Intrinsic Investors, LLC 235,000 7,471,000 1.17%
28 MILLENNIUM MANAGEMENT LLC 233,191 7,413,000 1.16%
29 Allianz Asset Management GmbH 231,539 7,361,000 1.15%
30 ESSEX INVESTMENT MANAGEMENT CO LLC 227,980 7,247,000 1.14%
31 D. E. Shaw & Co., Inc. 207,079 6,583,000 1.03%
32 RUSSELL FRANK CO/ 191,477 5,504,000 0.86%
33 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 168,900 5,369,000 0.84%
34 Bank of New York Mellon Corp 157,344 5,002,000 0.78%
35 GEODE CAPITAL MANAGEMENT, LLC 153,156 4,868,000 0.76%
36 Opaleye Management Inc. 135,000 4,292,000 0.67%
37 PERKINS CAPITAL MANAGEMENT INC 133,650 4,249,000 0.67%
38 AMERIPRISE FINANCIAL INC 124,643 3,962,000 0.62%
39 Informed Momentum Co LLC 122,185 3,884,000 0.61%
40 Invesco Ltd. 117,585 3,738,000 0.59%
41 Granite Point Capital Management, L.P. 108,000 3,433,000 0.54%
42 HIGHLAND CAPITAL MANAGEMENT LP 106,401 3,382,000 0.53%
43 TIAA CREF INVESTMENT MANAGEMENT LLC 105,604 3,357,000 0.53%
44 CI Global Investments Inc. 90,000 2,861,000 0.45%
45 Teton Advisors, Inc. 89,100 2,832,000 0.44%
46 AQR CAPITAL MANAGEMENT LLC 86,911 2,763,000 0.43%
47 WFG Advisors, LP 86,640 2,754,000 0.43%
48 HealthCor Management, L.P. 83,000 2,639,000 0.41%
49 Apex Capital Management 78,133 2,484,000 0.39%
50 BlackRock Investment Management, LLC 72,528 2,306,000 0.36%
Page 1 of 3

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.