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Institutional Holdings of QLOGIC CORPORATION (QLGC) on 12/31/2011

1. Company Information

Company/StockQLOGIC CORPORATION (stock symbol: QLGC)
Funds Ownership190 out of total 3028 funds (6%) own this stock
Funds own total 87,986,303 shares, 83.99% of all outstanding shares
Funds SOLD -5,804,528 shares (-6.19%) in the quarter ended on 12/31/2011

2. Top 20 Funds Held QLGC in this Quarter (By Shares) Add to Yahoo Finance Message Board

No.FundSharesPut/CallActivity(Shr)% Port.% Out. Shrs
1.)WELLINGTON MANAGEMENT CO LLP10,454,686Cut -24.16%0.06%9.98%
2.)PERKINS INVESTMENT MANAGEMENT LLC7,338,642Cut -14.23%0.69%7.01%
3.)VANGUARD GROUP INC5,200,820Cut -0.27%0.01%4.96%
4.)BLACKROCK ADVISORS LLC3,817,519Added 36.89%0.06%3.64%
5.)ELLIOTT MANAGEMENT CORP3,644,600New1.73%3.48%
6.)SCHRODER INVESTMENT MANAGEMENT GROUP3,060,500Added 1.65%0.17%2.92%
7.)BLACKROCK INSTITUTIONAL TRUST COMPANY NA2,905,824Added 8.06%0.01%2.77%
8.)ARTISAN PARTNERS LIMITED PARTNERSHIP2,668,700Cut -4.34%0.13%2.55%
9.)STATE STREET CORP2,465,538Cut -2.65%0.01%2.35%
10.)BLACKROCK FUND ADVISORS2,388,515Cut -3.84%0.02%2.28%
11.)DREMAN VALUE MANAGEMENT L L C2,032,419Cut -5.54%0.69%1.94%
12.)AMERICAN CENTURY COMPANIES INC1,792,521Cut -14.44%0.04%1.71%
13.)DEUTSCHE BANK AG 1,728,446Cut -12.36%0.03%1.65%
14.)ING INVESTMENT MANAGEMENT CO1,716,612Cut -16.06%0.10%1.64%
15.)HUSSMAN ECONOMETRICS ADVISORS INC1,650,000Cut -2.37%0.40%1.58%
16.)VAN BERKOM & ASSOCIATES INC1,603,610Added 19.69%2.42%1.53%
17.)PARADIGM CAPITAL MANAGEMENT INC NY1,598,825Unchanged1.46%1.53%
18.)BANK OF NEW YORK MELLON CORP1,484,501Cut -48.90%0.01%1.42%
19.)VAUGHAN NELSON SCARBOROUGH & MCCULLOUGH LP1,388,213Cut -3.26%1.04%1.33%
20.)LOOMIS SAYLES & CO L P1,248,258New0.09%1.19%



3. Top 20 Funds Held QLGC in this Quarter (By % of Portfolio) Add to Yahoo Finance Message Board

No.FundSharesPut/CallActivity(Shr)% Port.% Out. Shrs
1.)WHITMAN CAPITAL LLC692,416Unchanged11.30%0.66%
2.)KARAMAAN GROUP LLC100,000Unchanged2.45%0.10%
3.)VAN BERKOM & ASSOCIATES INC1,603,610Added 19.69%2.42%1.53%
4.)WESTPORT ASSET MANAGEMENT INC436,000Cut -29.79%1.73%0.42%
5.)ELLIOTT MANAGEMENT CORP3,644,600New1.73%3.48%
6.)PARADIGM CAPITAL MANAGEMENT INC NY1,598,825Unchanged1.46%1.53%
7.)WESTPORT ADVISERS LLC797,238Cut -0.74%1.20%0.76%
8.)ALGERT COLDIRON INVESTORS LLC243,549Added 32.17%1.19%0.23%
9.)IRVING MAGEE INVESTMENT MANAGEMENT98,800New1.07%0.09%
10.)VAUGHAN NELSON SCARBOROUGH & MCCULLOUGH LP1,388,213Cut -3.26%1.04%1.33%
11.)CUBIC ASSET MANAGEMENT LLC258,600Added 2.01%1.02%0.25%
12.)HILLSDALE INVESTMENT MANAGEMENT INC128,600Added 53.28%0.73%0.12%
13.)PERKINS INVESTMENT MANAGEMENT LLC7,338,642Cut -14.23%0.69%7.01%
14.)DREMAN VALUE MANAGEMENT L L C2,032,419Cut -5.54%0.69%1.94%
15.)STUX CAPITAL MANAGEMENT LLC340,000Added 5.92%0.62%0.32%
16.)THREE ZERO THREE CAPITAL PARTNERS LLC14,705New0.58%0.01%
17.)HUSSMAN ECONOMETRICS ADVISORS INC1,650,000Cut -2.37%0.40%1.58%
18.)STEPHENS INVESTMENT MANAGEMENT GROUP LLC215,054Cut -0.02%0.36%0.21%
19.)GREAT OAKS CAPITAL MANAGEMENT LLC62,025New0.30%0.06%
20.)TETON ADVISORS INC95,077Cut -8.12%0.30%0.09%

4. Top 20 Funds BOUGHT NEW QLGC in this Quarter (By Shares) Add to Yahoo Finance Message Board

No.FundSharesPut/Call% Port.% Out. Shrs
1.)ELLIOTT MANAGEMENT CORP3,644,6001.73%3.48%
2.)LOOMIS SAYLES & CO L P1,248,2580.09%1.19%
3.)TECHNICAL FINANCIAL SERVICES LLC149,5700.13%0.14%
4.)CI GLOBAL HOLDINGS INC100,0000.14%0.10%
5.)IRVING MAGEE INVESTMENT MANAGEMENT98,8001.07%0.09%
6.)GREAT OAKS CAPITAL MANAGEMENT LLC62,0250.30%0.06%
7.)BOSTON ADVISORS LLC51,6740.05%0.05%
8.)ICON ADVISERS INC CO49,0000.06%0.05%
9.)WALLEYE TRADING LLC48,9200.01%0.05%
10.)ELLINGTON MANAGEMENT GROUP LLC18,6000.13%0.02%
11.)JOHNSON INVESTMENT COUNSEL INC18,1000.01%0.02%
12.)BAKER AVENUE ASSET MANAGEMENT LP17,7000.09%0.02%
13.)QUANTITATIVE INVESTMENT MANAGEMENT LLC17,1000.02%0.02%
14.)GRT CAPITAL PARTNERS LLC15,7010.08%0.01%
15.)FEDERATED INVESTORS INC PA 15,7000.00%0.01%
16.)MENTA CAPITAL LLC15,2000.14%0.01%
17.)THREE ZERO THREE CAPITAL PARTNERS LLC14,7050.58%0.01%
18.)QS INVESTORS LLC12,9000.00%0.01%
19.)VIRGINIA RETIREMENT SYSTEMS ET AL10,2000.00%0.01%
20.)CAPITAL FUND MANAGEMENT SA10,1520.00%0.01%

5. Top 20 Funds SOLD OUT QLGC in this Quarter (By Shares) Add to Yahoo Finance Message Board

No.FundSharesPut/Call% Port.% Out. Shrs
1.)ELLIOTT ASSOCIATES LP2,681,0001.45%2.56%
2.)BRIDGEWATER ASSOCIATES INC860,9380.16%0.82%
3.)CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM382,4640.01%0.37%
4.)MILLENNIUM MANAGEMENT LLC339,1610.04%0.32%
5.)LORD ABBETT & CO LLC250,0000.01%0.24%
6.)GUGGENHEIM CAPITAL LLC229,5810.02%0.22%
7.)TIMBER HILL LLC196,400PUT0.01%0.19%
8.)GOLDEN CAPITAL MANAGEMENT LLC166,8680.12%0.16%
9.)PORTOLAN CAPITAL MANAGEMENT LLC112,4710.41%0.11%
10.)ONTARIO TEACHERS PENSION PLAN BOARD111,5000.01%0.11%
11.)BRYN MAWR TRUST CO PA88,7350.15%0.08%
12.)BALYASNY ASSET MANAGEMENT LLC75,0000.06%0.07%
13.)TIMBER HILL LLC74,800CALL0.00%0.07%
14.)BNP PARIBAS ARBITRAGE SNC39,9800.00%0.04%
15.)BNP PARIBAS ARBITRAGE SA39,9800.00%0.04%
16.)TIMBER HILL LLC33,6360.00%0.03%
17.)MARSHALL WACE NORTH AMERICA LP26,2750.07%0.03%
18.)GSA CAPITAL PARTNERS LLP25,7420.06%0.02%
19.)CREDIT AGRICOLE S A25,6030.00%0.02%
20.)COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS25,5840.01%0.02%