GIGAMON INC - 37518B102
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Highland Management Partners VII, LLC | History | No change | 5,774,500 | 175,487 | 64.11% | 64.11% | 1 | 0 | 0.0% | Q1 2014 | May 13, 2014 |
| JPMORGAN CHASE & CO | History | No change | 1,659,547 | 50,433 | 0.01% | 0.01% | 2 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| Cortina Asset Management, LLC | History | No change | 938,306 | 28,515 | 1.03% | 1.03% | 3 | 0 | 0.0% | Q1 2014 | May 13, 2014 |
| Shannon River Fund Management LLC | History | No change | 901,000 | 27,381 | 1.74% | 1.74% | 4 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| GRANAHAN INVESTMENT MANAGEMENT INC/MA | History | Added to | 1,137,400 | 21,770 | 0.64% | 0.7% | 5 | +279,300 | 32.55% | Q2 2014 | Jul 22, 2014 |
| VANGUARD GROUP INC | History | Added to | 1,126,043 | 21,552 | 0.0% | 0.0% | 6 | +132,131 | 13.29% | Q2 2014 | Aug 11, 2014 |
| NEXT CENTURY GROWTH INVESTORS LLC | History | No change | 706,377 | 21,466 | 0.64% | 0.64% | 7 | 0 | 0.0% | Q1 2014 | May 14, 2014 |
| Polar Capital LLP | History | No change | 519,094 | 15,772 | 0.36% | 0.36% | 8 | 0 | 0.0% | Q1 2014 | May 07, 2014 |
| LOOMIS SAYLES & CO L P | History | No change | 508,916 | 15,466 | 0.04% | 0.04% | 9 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| WELLS FARGO & COMPANY/MN | History | No change | 494,928 | 15,040 | 0.01% | 0.01% | 10 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| BlackRock Fund Advisors | History | Added to | 595,567 | 11,399 | 0.0% | 0.0% | 11 | +400,968 | 206.05% | Q2 2014 | Aug 06, 2014 |
| TEACHERS ADVISORS INC | History | No change | 300,230 | 9,124 | 0.02% | 0.02% | 12 | 0 | 0.0% | Q1 2014 | May 13, 2014 |
| Cupps Capital Management, LLC | History | No change | 298,461 | 9,070 | 0.69% | 0.69% | 13 | 0 | 0.0% | Q1 2014 | May 12, 2014 |
| Neuberger Berman Group LLC | History | New | 438,851 | 8,400 | 0.01% | — | 14 | +438,851 | New | Q2 2014 | Aug 05, 2014 |
| WALL STREET ASSOCIATES | History | No change | 259,411 | 7,884 | 0.64% | 0.64% | 15 | 0 | 0.0% | Q1 2014 | May 13, 2014 |
| WELLINGTON MANAGEMENT CO LLP | History | No change | 246,235 | 7,483 | 0.0% | 0.0% | 16 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| GILDER GAGNON HOWE & CO LLC | History | Reduced | 390,796 | 7,480 | 0.1% | 0.75% | 17 | -1,423,623 | -78.46% | Q2 2014 | Aug 04, 2014 |
| THORNBURG INVESTMENT MANAGEMENT INC | History | Reduced | 328,032 | 6,279 | 0.03% | 0.04% | 18 | -27,000 | -7.6% | Q2 2014 | Aug 11, 2014 |
| DRIEHAUS CAPITAL MANAGEMENT LLC | History | No change | 205,258 | 6,238 | 0.2% | 0.2% | 19 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | No change | 198,769 | 6,041 | 0.0% | 0.0% | 20 | 0 | 0.0% | Q1 2014 | May 14, 2014 |
| MARXE AUSTIN W & GREENHOUSE DAVID M | History | New | 287,967 | 5,512 | 0.7% | — | 21 | +287,967 | New | Q2 2014 | Aug 08, 2014 |
| Bank of New York Mellon Corp | History | No change | 177,283 | 5,387 | 0.0% | 0.0% | 22 | 0 | 0.0% | Q1 2014 | May 14, 2014 |
| BlackRock Institutional Trust Company, N.A. | History | Added to | 262,426 | 5,023 | 0.0% | 0.0% | 23 | +173,780 | 196.04% | Q2 2014 | Aug 06, 2014 |
| MORGAN STANLEY | History | No change | 145,043 | 4,408 | 0.0% | 0.0% | 24 | 0 | 0.0% | Q1 2014 | May 13, 2014 |
| FMR LLC | History | No change | 143,300 | 4,355 | 0.0% | 0.0% | 25 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| PEAK6 Investments, L.P. | History | No change | 139,500 | 4,240 | 0.04% | 0.04% | 26 | 0 | 0.0% | Q1 2014 | May 19, 2014 |
| ROYCE & ASSOCIATES LLC | History | New | 220,548 | 4,221 | 0.01% | — | 27 | +220,548 | New | Q2 2014 | Aug 11, 2014 |
| NORTHERN TRUST CORP | History | No change | 117,089 | 3,558 | 0.0% | 0.0% | 28 | 0 | 0.0% | Q1 2014 | May 14, 2014 |
| STATE STREET CORP | History | No change | 109,388 | 3,320 | 0.0% | 0.0% | 29 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| CITADEL ADVISORS LLC | History | No change | 90,245 | 2,742 | 0.0% | 0.0% | 30 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| BANK OF AMERICA CORP /DE/ | History | No change | 84,555 | 2,569 | 0.0% | 0.0% | 31 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| TIAA CREF INVESTMENT MANAGEMENT LLC | History | No change | 79,920 | 2,429 | 0.0% | 0.0% | 32 | 0 | 0.0% | Q1 2014 | May 13, 2014 |
| Allianz Asset Management AG | History | No change | 75,000 | 2,279 | 0.0% | 0.0% | 33 | 0 | 0.0% | Q1 2014 | May 28, 2014 |
| UNITED SERVICES AUTOMOBILE ASSOCIATION | History | No change | 68,700 | 2,088 | 0.01% | 0.01% | 34 | 0 | 0.0% | Q1 2014 | May 22, 2014 |
| CREDIT SUISSE AG/ | History | Added to | 104,701 | 2,003 | 0.0% | 0.0% | 35 | +70,594 | 206.98% | Q2 2014 | Aug 11, 2014 |
| GEODE CAPITAL MANAGEMENT, LLC | History | No change | 64,679 | 1,965 | 0.0% | 0.0% | 36 | 0 | 0.0% | Q1 2014 | May 14, 2014 |
| RUSSELL FRANK CO/ | History | No change | 99,501 | 1,603 | 0.0% | 0.0% | 37 | 0 | 0.0% | Q1 2014 | May 16, 2014 |
| BlackRock Investment Management, LLC | History | Added to | 69,857 | 1,337 | 0.0% | 0.0% | 38 | +45,213 | 183.46% | Q2 2014 | Aug 06, 2014 |
| MILLENNIUM MANAGEMENT LLC | History | No change | 43,296 | 1,316 | 0.0% | 0.0% | 39 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| OBERWEIS ASSET MANAGEMENT INC/ | History | No change | 41,500 | 1,261 | 0.26% | 0.26% | 40 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| BATTERYMARCH FINANCIAL MANAGEMENT INC | History | No change | 38,300 | 1,164 | 0.02% | 0.02% | 41 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| JANE STREET GROUP, LLC | History | No change | 37,130 | 1,128 | 0.01% | 0.01% | 42 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| D. E. Shaw & Co., Inc. | History | No change | 32,849 | 998 | 0.0% | 0.0% | 43 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| Open Field Capital LLC | History | No change | 50,000 | 957 | 0.77% | 1.32% | 44 | 0 | 0.0% | Q2 2014 | Jul 21, 2014 |
| Parallax Volatility Advisers, LLC | History | No change | 31,304 | 951 | 0.01% | 0.01% | 45 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| SCHWAB CHARLES INVESTMENT MANAGEMENT INC | History | Added to | 45,921 | 879 | 0.0% | 0.0% | 46 | +24,192 | 111.34% | Q2 2014 | Jul 30, 2014 |
| TIGER MANAGEMENT L.L.C. | History | No change | 28,500 | 866 | 0.28% | 0.28% | 47 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| Invesco Ltd. | History | No change | 27,364 | 832 | 0.0% | 0.0% | 48 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| TUDOR INVESTMENT CORP ET AL | History | No change | 26,339 | 800 | 0.03% | 0.03% | 49 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| Sterling Capital Management LLC | History | No change | 26,327 | 800 | 0.01% | 0.01% | 50 | 0 | 0.0% | Q1 2014 | May 16, 2014 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | History | No change | 26,060 | 792 | 0.01% | 0.01% | 51 | 0 | 0.0% | Q1 2014 | May 08, 2014 |
| ALPINE WOODS CAPITAL INVESTORS, LLC | History | Added to | 41,291 | 790 | 0.02% | 0.03% | 52 | +26,298 | 175.4% | Q2 2014 | Aug 08, 2014 |
| KOPP INVESTMENT ADVISORS LLC | History | New | 40,270 | 771 | 0.35% | — | 53 | +40,270 | New | Q2 2014 | Aug 01, 2014 |
| UBS AG | History | No change | 25,200 | 766 | 0.0% | 0.0% | 54 | 0 | 0.0% | Q1 2014 | May 16, 2014 |
| SOROS FUND MANAGEMENT LLC | History | No change | 25,000 | 760 | 0.01% | 0.01% | 55 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| DEUTSCHE BANK AG\ | History | No change | 22,843 | 692 | 0.0% | 0.0% | 56 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| KCG Holdings, Inc. | History | No change | 20,796 | 632 | 0.01% | 0.01% | 57 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| GOLDMAN SACHS GROUP INC | History | No change | 19,159 | 582 | 0.0% | 0.0% | 58 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| INTEGRAL DERIVATIVES, LLC | History | Added to | 25,000 | 478 | 0.01% | 0.01% | 59 | +15,000 | 150.0% | Q2 2014 | Aug 07, 2014 |
| Spot Trading L.L.C | History | No change | 15,000 | 456 | 0.0% | 0.0% | 60 | 0 | 0.0% | Q1 2014 | May 13, 2014 |
| PARAMETRIC PORTFOLIO ASSOCIATES LLC | History | No change | 14,219 | 432 | 0.0% | 0.0% | 61 | 0 | 0.0% | Q1 2014 | May 13, 2014 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | History | No change | 14,100 | 428 | 0.0% | 0.0% | 62 | 0 | 0.0% | Q1 2014 | May 08, 2014 |
| Gradient Investments LLC | History | Added to | 19,311 | 370 | 0.07% | 0.1% | 63 | +5,228 | 37.12% | Q2 2014 | Jul 11, 2014 |
| METROPOLITAN LIFE INSURANCE CO/NY | History | Added to | 19,214 | 368 | 0.0% | 0.0% | 64 | +11,227 | 140.57% | Q2 2014 | Jul 31, 2014 |
| RHUMBLINE ADVISERS | History | Added to | 19,004 | 364 | 0.0% | 0.0% | 65 | +11,919 | 168.23% | Q2 2014 | Aug 06, 2014 |
| Nationwide Fund Advisors | History | Added to | 18,570 | 355 | 0.0% | 0.0% | 66 | +12,643 | 213.31% | Q2 2014 | Aug 11, 2014 |
| LOS ANGELES CAPITAL MANAGEMENT & EQUITY RESEARCH INC | History | No change | 11,505 | 350 | 0.0% | 0.0% | 67 | 0 | 0.0% | Q1 2014 | May 12, 2014 |
| PANAGORA ASSET MANAGEMENT INC | History | No change | 11,338 | 345 | 0.0% | 0.0% | 68 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| Marshall Wace LLP | History | No change | 11,300 | 343 | 0.01% | 0.01% | 69 | 0 | 0.0% | Q1 2014 | May 14, 2014 |
| AMERICAN INTERNATIONAL GROUP INC | History | Added to | 16,980 | 324 | 0.0% | 0.0% | 70 | +10,730 | 171.68% | Q2 2014 | Aug 08, 2014 |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | History | New | 16,282 | 312 | 0.0% | — | 71 | +16,282 | New | Q2 2014 | Aug 07, 2014 |
| State of New Jersey Common Pension Fund A | History | No change | 10,000 | 304 | 0.0% | 0.0% | 72 | 0 | 0.0% | Q1 2014 | May 05, 2014 |
| CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM | History | No change | 15,491 | 268 | 0.0% | 0.0% | 73 | 0 | 0.0% | Q1 2014 | Apr 18, 2014 |
| Swiss National Bank | History | Added to | 13,500 | 258 | 0.0% | 0.0% | 74 | +2,900 | 27.36% | Q2 2014 | Aug 06, 2014 |
| ELLINGTON MANAGEMENT GROUP LLC | History | No change | 8,400 | 255 | 0.07% | 0.07% | 75 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| ProShare Advisors LLC | History | Added to | 11,786 | 226 | 0.0% | 0.0% | 76 | +3,927 | 49.97% | Q2 2014 | Aug 08, 2014 |
| AlphaOne Investment Services, LLC | History | No change | 7,170 | 217 | 0.05% | 0.05% | 77 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| SAC Capital Advisors LP | History | No change | 6,740 | 205 | 0.0% | 0.0% | 78 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | History | No change | 6,679 | 203 | 0.0% | 0.0% | 79 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| BLACKROCK ADVISORS LLC | History | Added to | 10,309 | 197 | 0.0% | 0.0% | 80 | +6,188 | 150.16% | Q2 2014 | Aug 06, 2014 |
| BLAIR WILLIAM & CO/IL | History | Reduced | 10,100 | 193 | 0.0% | 0.0% | 81 | -5,500 | -35.26% | Q2 2014 | Aug 01, 2014 |
| State of New Jersey Common Pension Fund D | History | New | 10,000 | 191 | 0.0% | — | 82 | +10,000 | New | Q2 2014 | Aug 11, 2014 |
| GAGNON SECURITIES LLC | History | New | 8,786 | 168 | 0.05% | — | 83 | +8,786 | New | Q2 2014 | Jul 31, 2014 |
| EMERALD ADVISERS INC/PA | History | Reduced | 7,265 | 139 | 0.01% | 0.59% | 84 | -337,377 | -97.89% | Q2 2014 | Jul 17, 2014 |
| Absolute Return Capital, LLC | History | No change | 4,512 | 137 | 0.0% | 0.0% | 85 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| Partnervest Advisory Services LLC | History | No change | 4,500 | 137 | 0.06% | 0.06% | 86 | 0 | 0.0% | Q1 2014 | May 12, 2014 |
| CITIGROUP INC | History | No change | 1,548 | 47 | 0.0% | 0.0% | 87 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| RidgeWorth Capital Management LLC | History | New | 2,063 | 39 | 0.0% | — | 88 | +2,063 | New | Q2 2014 | Jul 31, 2014 |
| SPRINGBOK CAPITAL MANAGEMENT, LLC | History | No change | 1,100 | 33 | 0.0% | 0.0% | 89 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| BARCLAYS PLC | History | No change | 1,056 | 31 | 0.0% | 0.0% | 90 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| Apriem Advisors | History | Added to | 1,275 | 24 | 0.01% | 0.01% | 91 | +625 | 96.15% | Q2 2014 | Aug 11, 2014 |
| Tower Research Capital LLC | History | No change | 734 | 22 | 0.0% | 0.0% | 92 | 0 | 0.0% | Q1 2014 | May 02, 2014 |
| US BANCORP \DE\ | History | No change | 575 | 17 | 0.0% | 0.0% | 93 | 0 | 0.0% | Q1 2014 | May 14, 2014 |
| Quantbot Technologies LP | History | Reduced | 641 | 12 | 0.0% | 0.01% | 94 | -559 | -46.58% | Q2 2014 | Jul 08, 2014 |
| BlackRock Inc. | History | Added to | 590 | 11 | 0.0% | 0.0% | 96 | +428 | 264.2% | Q2 2014 | Aug 06, 2014 |
| ROYAL BANK OF CANADA | History | No change | 350 | 11 | 0.0% | 0.0% | 95 | 0 | 0.0% | Q1 2014 | May 15, 2014 |
| TEACHER RETIREMENT SYSTEM OF TEXAS | History | Added to | 397 | 8 | 0.0% | 0.0% | 97 | +105 | 35.96% | Q2 2014 | Aug 05, 2014 |
| AMERIPRISE FINANCIAL INC | History | No change | 250 | 8 | 0.0% | 0.0% | 98 | 0 | 0.0% | Q1 2014 | May 14, 2014 |
| EMERALD MUTUAL FUND ADVISERS TRUST | History | Closed out | 0 | 0 | — | 0.84% | — | -289,530 | -100.0% | Q2 2014 | Jul 17, 2014 |
| CADENCE CAPITAL MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.32% | — | -246,428 | -100.0% | Q2 2014 | Jul 23, 2014 |
| Tygh Capital Management, Inc. | History | Closed out | 0 | 0 | — | 0.7% | — | -113,263 | -100.0% | Q2 2014 | Aug 06, 2014 |
| AH Lisanti Capital Growth, LLC | History | Closed out | 0 | 0 | — | 1.13% | — | -86,175 | -100.0% | Q2 2014 | Aug 08, 2014 |
| DEERE & CO | History | Closed out | 0 | 0 | — | 0.04% | — | -20,179 | -100.0% | Q2 2014 | Aug 11, 2014 |
| STRS OHIO | History | Closed out | 0 | 0 | — | 0.0% | — | -17,670 | -100.0% | Q2 2014 | Jul 24, 2014 |
| SECOR Capital Advisors, LP | History | Closed out | 0 | 0 | — | 0.21% | — | -14,033 | -100.0% | Q2 2014 | Jul 23, 2014 |
| FIRST MERCANTILE TRUST CO | History | Closed out | 0 | 0 | — | 0.02% | — | -8,987 | -100.0% | Q2 2014 | Jul 22, 2014 |
| BlackRock Group LTD | History | Closed out | 0 | 0 | — | 0.0% | — | -1,900 | -100.0% | Q2 2014 | Aug 06, 2014 |
| MAZAMA CAPITAL MANAGEMENT INC | History | Closed out | 0 | 0 | — | 0.02% | — | -865 | -100.0% | Q2 2014 | Jul 28, 2014 |
| PATHSTONE FAMILY OFFICE, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -31 | -100.0% | Q2 2014 | Jul 29, 2014 |
| PNC FINANCIAL SERVICES GROUP, INC. | History | Closed out | 0 | 0 | — | 0.0% | — | -17 | -100.0% | Q2 2014 | Aug 08, 2014 |
| PRIVATE TRUST CO NA | History | New | 15 | 0 | — | — | — | +15 | New | Q2 2014 | Jul 22, 2014 |
| BNP PARIBAS ARBITRAGE, SA | History | No change | 21 | 0 | — | — | — | 0 | 0.0% | Q1 2014 | May 13, 2014 |