QUANTUM CORP - 747906204
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| VANGUARD GROUP INC | History | Added to | 14,232,305 | 17,363 | 0.0% | 0.0% | 1 | +48,168 | 0.34% | Q2 2014 | Aug 11, 2014 |
| BlackRock Institutional Trust Company, N.A. | History | Reduced | 7,580,573 | 9,248 | 0.0% | 0.0% | 2 | -141,383 | -1.83% | Q2 2014 | Aug 06, 2014 |
| BlackRock Fund Advisors | History | Reduced | 5,485,190 | 6,692 | 0.0% | 0.0% | 3 | -498,191 | -8.33% | Q2 2014 | Aug 06, 2014 |
| FEDERATED INVESTORS INC /PA/ | History | Reduced | 5,462,248 | 6,665 | 0.02% | 0.02% | 4 | -148,280 | -2.64% | Q2 2014 | Aug 07, 2014 |
| BBT Capital Management, LLC | History | Added to | 3,617,574 | 4,413 | 0.27% | 0.17% | 5 | +573,924 | 18.86% | Q2 2014 | Aug 08, 2014 |
| Neuberger Berman Group LLC | History | Reduced | 2,653,124 | 3,237 | 0.0% | 0.0% | 6 | -93,654 | -3.41% | Q2 2014 | Aug 05, 2014 |
| Roumell Asset Management, LLC | History | Added to | 2,530,760 | 3,088 | 3.62% | 2.48% | 7 | +506,800 | 25.04% | Q2 2014 | Aug 11, 2014 |
| OXFORD ASSET MANAGEMENT | History | Added to | 1,581,337 | 1,834 | 0.07% | 0.06% | 8 | +79,731 | 5.31% | Q2 2014 | Jul 16, 2014 |
| DIMENSIONAL FUND ADVISORS LP | History | Reduced | 1,074,545 | 1,310 | 0.0% | 0.0% | 9 | -9,239 | -0.85% | Q2 2014 | Aug 08, 2014 |
| MUNDER CAPITAL MANAGEMENT | History | Reduced | 819,406 | 1,000 | 0.01% | 0.01% | 10 | -28,835 | -3.4% | Q2 2014 | Aug 06, 2014 |
| BlackRock Investment Management, LLC | History | Reduced | 686,562 | 838 | 0.0% | 0.0% | 11 | -44,427 | -6.08% | Q2 2014 | Aug 06, 2014 |
| BlackRock Group LTD | History | Added to | 552,898 | 675 | 0.0% | 0.0% | 12 | +365,309 | 194.74% | Q2 2014 | Aug 06, 2014 |
| BLACKROCK ADVISORS LLC | History | Reduced | 527,281 | 643 | 0.0% | 18.82% | 13 | -17,546 | -3.22% | Q2 2014 | Aug 06, 2014 |
| SCHWAB CHARLES INVESTMENT MANAGEMENT INC | History | Reduced | 503,775 | 615 | 0.0% | 0.0% | 14 | -67,794 | -11.86% | Q2 2014 | Jul 30, 2014 |
| CORNERSTONE CAPITAL MANAGEMENT HOLDINGS LLC. | History | Added to | 410,850 | 501 | 0.01% | 0.0% | 15 | +162,200 | 65.23% | Q2 2014 | Aug 11, 2014 |
| Swiss National Bank | History | No change | 276,000 | 337 | 0.0% | 0.0% | 16 | 0 | 0.0% | Q2 2014 | Aug 06, 2014 |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | History | No change | 242,660 | 296 | 0.0% | 0.0% | 17 | 0 | 0.0% | Q2 2014 | Aug 07, 2014 |
| RHUMBLINE ADVISERS | History | Reduced | 232,881 | 284 | 0.0% | 0.0% | 18 | -37,805 | -13.97% | Q2 2014 | Aug 06, 2014 |
| Nationwide Fund Advisors | History | Added to | 168,308 | 205 | 0.0% | 0.0% | 19 | +1,997 | 1.2% | Q2 2014 | Aug 11, 2014 |
| CREDIT SUISSE AG/ | History | Reduced | 159,580 | 195 | 0.0% | 0.0% | 20 | -165,946 | -50.98% | Q2 2014 | Aug 11, 2014 |
| AMERICAN INTERNATIONAL GROUP INC | History | Reduced | 143,540 | 175 | 0.0% | 0.0% | 21 | -882 | -0.61% | Q2 2014 | Aug 08, 2014 |
| White Pine Investment CO | History | No change | 112,400 | 137 | 0.08% | 0.09% | 22 | 0 | 0.0% | Q2 2014 | Aug 06, 2014 |
| IRIDIAN ASSET MANAGEMENT LLC/CT | History | Reduced | 108,560 | 132 | 0.0% | 0.0% | 23 | -45,280 | -29.43% | Q2 2014 | Aug 11, 2014 |
| ProShare Advisors LLC | History | Reduced | 106,122 | 129 | 0.0% | 0.0% | 25 | -108,619 | -50.58% | Q2 2014 | Aug 08, 2014 |
| REGIONS FINANCIAL CORP | History | No change | 105,800 | 129 | 0.0% | 0.0% | 24 | 0 | 0.0% | Q2 2014 | Jul 23, 2014 |
| METROPOLITAN LIFE INSURANCE CO/NY | History | Reduced | 65,010 | 79 | 0.0% | 0.0% | 26 | -106,352 | -62.06% | Q2 2014 | Jul 31, 2014 |
| GABELLI FUNDS LLC | History | No change | 65,000 | 79 | 0.0% | 0.0% | 27 | 0 | 0.0% | Q2 2014 | Aug 06, 2014 |
| ALGERT COLDIRON INVESTORS LLC | History | Added to | 59,260 | 72 | 0.05% | 0.02% | 28 | +26,250 | 79.52% | Q2 2014 | Aug 11, 2014 |
| PROFUND ADVISORS LLC | History | Added to | 26,085 | 32 | 0.0% | 0.0% | 29 | +885 | 3.51% | Q2 2014 | Aug 08, 2014 |
| RidgeWorth Capital Management LLC | History | New | 18,717 | 23 | 0.0% | — | 30 | +18,717 | New | Q2 2014 | Jul 31, 2014 |
| BlackRock Japan Co. Ltd | History | Reduced | 16,514 | 20 | 0.0% | 0.0% | 31 | -9,362 | -36.18% | Q2 2014 | Aug 06, 2014 |
| GREAT WEST LIFE ASSURANCE CO /CAN/ | History | No change | 11,452 | 14 | 0.0% | 0.0% | 32 | 0 | 0.0% | Q2 2014 | Aug 06, 2014 |
| AMALGAMATED BANK | History | New | 10,266 | 13 | 0.0% | — | 33 | +10,266 | New | Q2 2014 | Aug 11, 2014 |
| World Asset Management Inc | History | Reduced | 10,573 | 13 | 0.0% | 0.0% | 34 | -3,426 | -24.47% | Q2 2014 | Jul 28, 2014 |
| TEACHER RETIREMENT SYSTEM OF TEXAS | History | Reduced | 8,113 | 10 | 0.0% | 0.0% | 35 | -1,007 | -11.04% | Q2 2014 | Aug 05, 2014 |
| BlackRock Inc. | History | Reduced | 7,857 | 10 | 0.0% | 0.0% | 36 | -128 | -1.6% | Q2 2014 | Aug 06, 2014 |
| WHITTIER TRUST CO | History | No change | 4,614 | 6 | 0.0% | 0.0% | 37 | 0 | 0.0% | Q2 2014 | Aug 04, 2014 |
| GLOBEFLEX CAPITAL L P | History | Reduced | 4,030 | 4 | 0.0% | 0.0% | 38 | -729 | -15.32% | Q2 2014 | Jul 18, 2014 |
| PNC FINANCIAL SERVICES GROUP, INC. | History | No change | 941 | 1 | 0.0% | 0.0% | 39 | 0 | 0.0% | Q2 2014 | Aug 08, 2014 |
| FMR LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -27,616,480 | -100.0% | Q1 2014 | May 15, 2014 |
| Starboard Value LP | History | Closed out | 0 | 0 | — | 1.72% | — | -25,695,000 | -100.0% | Q1 2014 | May 12, 2014 |
| Private Capital Management, LLC | History | Closed out | 0 | 0 | — | 1.72% | — | -11,145,039 | -100.0% | Q1 2014 | May 15, 2014 |
| Amici Capital, LLC | History | Closed out | 0 | 0 | — | 0.41% | — | -10,327,667 | -100.0% | Q1 2014 | May 15, 2014 |
| WELLS FARGO & COMPANY/MN | History | Closed out | 0 | 0 | — | 0.0% | — | -8,995,095 | -100.0% | Q1 2014 | May 15, 2014 |
| CRAMER ROSENTHAL MCGLYNN LLC | History | Closed out | 0 | 0 | — | 0.07% | — | -7,772,275 | -100.0% | Q1 2014 | May 14, 2014 |
| Nokomis Capital, L.L.C. | History | Closed out | 0 | 0 | — | 2.79% | — | -6,894,328 | -100.0% | Q1 2014 | May 15, 2014 |
| STATE STREET CORP | History | Closed out | 0 | 0 | — | 0.0% | — | -3,855,535 | -100.0% | Q1 2014 | May 15, 2014 |
| Potomac Capital Management, Inc. | History | Closed out | 0 | 0 | — | 4.0% | — | -3,832,023 | -100.0% | Q1 2014 | May 14, 2014 |
| NORTHERN TRUST CORP | History | Closed out | 0 | 0 | — | 0.0% | — | -2,768,870 | -100.0% | Q1 2014 | May 14, 2014 |
| Breithorn Capital Management | History | Closed out | 0 | 0 | — | 1.72% | — | -2,646,425 | -100.0% | Q1 2014 | May 15, 2014 |
| DSC Advisors, L.P. | History | Closed out | 0 | 0 | — | 1.48% | — | -2,260,000 | -100.0% | Q1 2014 | May 15, 2014 |
| COOPER CREEK PARTNERS MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 2.66% | — | -1,963,858 | -100.0% | Q1 2014 | May 14, 2014 |
| Bank of New York Mellon Corp | History | Closed out | 0 | 0 | — | 0.0% | — | -1,883,049 | -100.0% | Q1 2014 | May 14, 2014 |
| EII CAPITAL MANAGEMENT, INC. | History | Closed out | 0 | 0 | — | 0.04% | — | -1,566,805 | -100.0% | Q1 2014 | May 14, 2014 |
| CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM | History | Closed out | 0 | 0 | — | 0.0% | — | -1,536,600 | -100.0% | Q1 2014 | Apr 18, 2014 |
| WHITEBOX ADVISORS LLC | History | Closed out | 0 | 0 | — | 0.08% | — | -1,522,929 | -100.0% | Q1 2014 | May 14, 2014 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -1,381,540 | -100.0% | Q1 2014 | May 14, 2014 |
| Centaur Capital Partners, L.P. | History | Closed out | 0 | 0 | — | 2.36% | — | -1,200,000 | -100.0% | Q1 2014 | May 15, 2014 |
| D. E. Shaw & Co., Inc. | History | Closed out | 0 | 0 | — | 0.0% | — | -1,195,655 | -100.0% | Q1 2014 | May 15, 2014 |
| FULLER & THALER ASSET MANAGEMENT, INC. | History | Closed out | 0 | 0 | — | 0.07% | — | -1,140,200 | -100.0% | Q1 2014 | May 13, 2014 |
| RUSSELL FRANK CO/ | History | Closed out | 0 | 0 | — | 0.0% | — | -1,043,326 | -100.0% | Q1 2014 | May 16, 2014 |
| JACOBS LEVY EQUITY MANAGEMENT, INC | History | Closed out | 0 | 0 | — | 0.02% | — | -962,478 | -100.0% | Q1 2014 | May 15, 2014 |
| TIAA CREF INVESTMENT MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -955,224 | -100.0% | Q1 2014 | May 13, 2014 |
| BRIGHTFIELD CAPITAL MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 1.18% | — | -862,820 | -100.0% | Q1 2014 | May 14, 2014 |
| ADAGE CAPITAL PARTNERS GP LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -781,300 | -100.0% | Q1 2014 | May 15, 2014 |
| Loeb Offshore Management LP | History | Closed out | 0 | 0 | — | 0.25% | — | -718,881 | -100.0% | Q1 2014 | May 15, 2014 |
| MILLENNIUM MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -687,751 | -100.0% | Q1 2014 | May 15, 2014 |
| CITADEL ADVISORS LLC | History | Closed out | 0 | 0 | — | 1.09% | — | -619,739 | -100.0% | Q1 2014 | Aug 08, 2014 |
| PARAMETRIC PORTFOLIO ASSOCIATES LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -480,025 | -100.0% | Q1 2014 | May 13, 2014 |
| Invesco Ltd. | History | Closed out | 0 | 0 | — | 0.0% | — | -410,034 | -100.0% | Q1 2014 | May 15, 2014 |
| RENAISSANCE TECHNOLOGIES LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -403,800 | -100.0% | Q1 2014 | May 14, 2014 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | History | Closed out | 0 | 0 | — | 0.0% | — | -384,269 | -100.0% | Q1 2014 | May 08, 2014 |
| PUTNAM INVESTMENTS LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -369,622 | -100.0% | Q1 2014 | May 15, 2014 |
| BRIDGEWAY CAPITAL MANAGEMENT INC | History | Closed out | 0 | 0 | — | 0.01% | — | -350,100 | -100.0% | Q1 2014 | May 15, 2014 |
| SECOR Capital Advisors, LP | History | Closed out | 0 | 0 | — | 0.2% | — | -330,578 | -100.0% | Q1 2014 | Apr 28, 2014 |
| TEACHERS ADVISORS INC | History | Closed out | 0 | 0 | — | 0.0% | — | -317,535 | -100.0% | Q1 2014 | May 13, 2014 |
| Weiss Multi-Strategy Advisers LLC | History | Closed out | 0 | 0 | — | 0.01% | — | -300,000 | -100.0% | Q1 2014 | May 15, 2014 |
| GOLDMAN SACHS GROUP INC | History | Closed out | 0 | 0 | — | 0.0% | — | -291,355 | -100.0% | Q1 2014 | May 15, 2014 |
| SUNTRUST BANKS INC | History | Closed out | 0 | 0 | — | 0.0% | — | -275,927 | -100.0% | Q1 2014 | May 14, 2014 |
| MORGAN STANLEY | History | Closed out | 0 | 0 | — | 0.0% | — | -259,703 | -100.0% | Q1 2014 | May 13, 2014 |
| DEUTSCHE BANK AG\ | History | Closed out | 0 | 0 | — | 0.0% | — | -251,129 | -100.0% | Q1 2014 | May 15, 2014 |
| Spark Investment Management LLC | History | Closed out | 0 | 0 | — | 0.05% | — | -246,700 | -100.0% | Q1 2014 | May 13, 2014 |
| NOMURA HOLDINGS INC | History | Closed out | 0 | 0 | — | 0.0% | — | -244,805 | -100.0% | Q1 2014 | May 14, 2014 |
| Baker Avenue Asset Management, LP | History | Closed out | 0 | 0 | — | 0.82% | — | -229,200 | -100.0% | Q1 2014 | Aug 06, 2014 |
| GRUBER & MCBAINE CAPITAL MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.06% | — | -200,000 | -100.0% | Q1 2014 | May 15, 2014 |
| ZACKS INVESTMENT MANAGEMENT | History | Closed out | 0 | 0 | — | 0.01% | — | -195,848 | -100.0% | Q1 2014 | May 13, 2014 |
| ING INVESTMENT MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -190,303 | -100.0% | Q1 2014 | May 15, 2014 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | History | Closed out | 0 | 0 | — | 0.0% | — | -171,650 | -100.0% | Q1 2014 | May 15, 2014 |
| CITIGROUP INC | History | Closed out | 0 | 0 | — | 0.0% | — | -130,499 | -100.0% | Q1 2014 | May 15, 2014 |
| BARCLAYS PLC | History | Closed out | 0 | 0 | — | 0.0% | — | -107,426 | -100.0% | Q1 2014 | May 15, 2014 |
| PRINCIPAL FINANCIAL GROUP INC | History | Closed out | 0 | 0 | — | 0.0% | — | -88,561 | -100.0% | Q1 2014 | May 13, 2014 |
| UBS GLOBAL ASSET MANAGEMENT AMERICAS INC | History | Closed out | 0 | 0 | — | 0.0% | — | -85,400 | -100.0% | Q1 2014 | May 23, 2014 |
| AQR CAPITAL MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -78,800 | -100.0% | Q1 2014 | May 15, 2014 |
| SAC Capital Advisors LP | History | Closed out | 0 | 0 | — | 0.0% | — | -66,089 | -100.0% | Q1 2014 | May 15, 2014 |
| Rotella Capital Management, Inc. | History | Closed out | 0 | 0 | — | 0.07% | — | -45,813 | -100.0% | Q1 2014 | May 21, 2014 |
| USCA RIA LLC | History | Closed out | 0 | 0 | — | 0.02% | — | -44,700 | -100.0% | Q1 2014 | May 12, 2014 |
| KENNEDY CAPITAL MANAGEMENT, INC. | History | Closed out | 0 | 0 | — | 0.0% | — | -42,701 | -100.0% | Q1 2014 | May 14, 2014 |
| ALLIANCEBERNSTEIN L.P. | History | Closed out | 0 | 0 | — | 0.0% | — | -39,768 | -100.0% | Q1 2014 | May 13, 2014 |
| PRICE T ROWE ASSOCIATES INC /MD/ | History | Closed out | 0 | 0 | — | 0.0% | — | -37,000 | -100.0% | Q1 2014 | May 15, 2014 |
| SPRINGBOK CAPITAL MANAGEMENT, LLC | History | Closed out | 0 | 0 | — | 0.01% | — | -34,300 | -100.0% | Q1 2014 | May 15, 2014 |
| TWO SIGMA ADVISERS, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -30,344 | -100.0% | Q1 2014 | May 15, 2014 |
| Nine Chapters Capital Management LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -30,300 | -100.0% | Q1 2014 | May 15, 2014 |
| KCG Holdings, Inc. | History | Closed out | 0 | 0 | — | 0.0% | — | -28,761 | -100.0% | Q1 2014 | May 15, 2014 |
| CAPSTONE ASSET MANAGEMENT CO | History | Closed out | 0 | 0 | — | 0.0% | — | -27,548 | -100.0% | Q1 2014 | Apr 22, 2014 |
| GUGGENHEIM CAPITAL LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -23,415 | -100.0% | Q1 2014 | May 16, 2014 |
| Freestone Capital Holdings, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -20,909 | -100.0% | Q1 2014 | May 15, 2014 |
| COMERICA BANK | History | Closed out | 0 | 0 | — | 0.0% | — | -19,675 | -100.0% | Q1 2014 | May 15, 2014 |
| Summit Investment Advisors, Inc. | History | Closed out | 0 | 0 | — | 0.0% | — | -19,651 | -100.0% | Q1 2014 | May 13, 2014 |
| Nuveen Asset Management, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -17,692 | -100.0% | Q1 2014 | May 14, 2014 |
| BANK OF AMERICA CORP /DE/ | History | Closed out | 0 | 0 | — | 0.0% | — | -17,292 | -100.0% | Q1 2014 | May 15, 2014 |
| ROYAL BANK OF CANADA | History | Closed out | 0 | 0 | — | 0.0% | — | -17,000 | -100.0% | Q1 2014 | May 15, 2014 |
| PRUDENTIAL FINANCIAL INC | History | Closed out | 0 | 0 | — | 0.0% | — | -16,964 | -100.0% | Q1 2014 | May 14, 2014 |
| COMPTON CAPITAL MANAGEMENT INC /RI | History | Closed out | 0 | 0 | — | 0.01% | — | -10,000 | -100.0% | Q1 2014 | May 15, 2014 |
| UBS AG | History | Closed out | 0 | 0 | — | 0.0% | — | -7,909 | -100.0% | Q1 2014 | May 16, 2014 |
| LifePlan Financial Group, Inc | History | Closed out | 0 | 0 | — | 0.01% | — | -7,013 | -100.0% | Q1 2014 | Apr 03, 2014 |
| AMERIPRISE FINANCIAL INC | History | Closed out | 0 | 0 | — | 0.0% | — | -2,937 | -100.0% | Q1 2014 | May 14, 2014 |
| Antonetti Capital Management LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -2,500 | -100.0% | Q1 2014 | May 14, 2014 |
| PANAGORA ASSET MANAGEMENT INC | History | Closed out | 0 | 0 | — | 0.0% | — | -1,577 | -100.0% | Q1 2014 | May 15, 2014 |
| GROUP ONE TRADING, L.P. | History | Closed out | 0 | 0 | — | 0.0% | — | -1,100 | -100.0% | Q1 2014 | May 07, 2014 |
| BNP PARIBAS ARBITRAGE, SA | History | Closed out | 0 | 0 | — | — | — | -902 | -100.0% | Q1 2014 | May 13, 2014 |
| Creative Planning | History | Closed out | 0 | 0 | — | — | — | -500 | -100.0% | Q1 2014 | Apr 11, 2014 |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | History | Closed out | 0 | 0 | — | — | — | -400 | -100.0% | Q1 2014 | May 14, 2014 |
| LADENBURG THALMANN FINANCIAL SERVICES INC | History | Closed out | 0 | 0 | — | — | — | -350 | -100.0% | Q1 2014 | May 15, 2014 |
| ADIRONDACK TRUST CO | History | No change | 225 | 0 | — | — | — | 0 | 0.0% | Q2 2014 | Jul 23, 2014 |
| Highlander Capital Management, LLC | History | No change | 200 | 0 | — | — | — | 0 | 0.0% | Q2 2014 | Aug 11, 2014 |