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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| GRANAHAN INVESTMENT MANAGEMENT INC/MA | History | Added to | 1,137,400 | 21,770 | 0.64% | 0.7% | 1 | +279,300 | 32.55% | Q2 2014 | Jul 22, 2014 |
| VANGUARD GROUP INC | History | Added to | 1,126,043 | 21,552 | 0.0% | 0.0% | 2 | +132,131 | 13.29% | Q2 2014 | Aug 11, 2014 |
| BlackRock Fund Advisors | History | Added to | 595,567 | 11,399 | 0.0% | 0.0% | 3 | +400,968 | 206.05% | Q2 2014 | Aug 06, 2014 |
| Neuberger Berman Group LLC | History | New | 438,851 | 8,400 | 0.01% | — | 4 | +438,851 | New | Q2 2014 | Aug 05, 2014 |
| GILDER GAGNON HOWE & CO LLC | History | Reduced | 390,796 | 7,480 | 0.1% | 0.75% | 5 | -1,423,623 | -78.46% | Q2 2014 | Aug 04, 2014 |
| THORNBURG INVESTMENT MANAGEMENT INC | History | Reduced | 328,032 | 6,279 | 0.03% | 0.04% | 6 | -27,000 | -7.6% | Q2 2014 | Aug 11, 2014 |
| MARXE AUSTIN W & GREENHOUSE DAVID M | History | New | 287,967 | 5,512 | 0.7% | — | 7 | +287,967 | New | Q2 2014 | Aug 08, 2014 |
| BlackRock Institutional Trust Company, N.A. | History | Added to | 262,426 | 5,023 | 0.0% | 0.0% | 8 | +173,780 | 196.04% | Q2 2014 | Aug 06, 2014 |
| ROYCE & ASSOCIATES LLC | History | New | 220,548 | 4,221 | 0.01% | — | 9 | +220,548 | New | Q2 2014 | Aug 11, 2014 |
| CREDIT SUISSE AG/ | History | Added to | 104,701 | 2,003 | 0.0% | 0.0% | 10 | +70,594 | 206.98% | Q2 2014 | Aug 11, 2014 |
| BlackRock Investment Management, LLC | History | Added to | 69,857 | 1,337 | 0.0% | 0.0% | 11 | +45,213 | 183.46% | Q2 2014 | Aug 06, 2014 |
| Open Field Capital LLC | History | No change | 50,000 | 957 | 0.77% | 1.32% | 12 | 0 | 0.0% | Q2 2014 | Jul 21, 2014 |
| SCHWAB CHARLES INVESTMENT MANAGEMENT INC | History | Added to | 45,921 | 879 | 0.0% | 0.0% | 13 | +24,192 | 111.34% | Q2 2014 | Jul 30, 2014 |
| ALPINE WOODS CAPITAL INVESTORS, LLC | History | Added to | 41,291 | 790 | 0.02% | 0.03% | 14 | +26,298 | 175.4% | Q2 2014 | Aug 08, 2014 |
| KOPP INVESTMENT ADVISORS LLC | History | New | 40,270 | 771 | 0.35% | — | 15 | +40,270 | New | Q2 2014 | Aug 01, 2014 |
| INTEGRAL DERIVATIVES, LLC | History | Added to | 25,000 | 478 | 0.01% | 0.01% | 16 | +15,000 | 150.0% | Q2 2014 | Aug 07, 2014 |
| Gradient Investments LLC | History | Added to | 19,311 | 370 | 0.07% | 0.1% | 17 | +5,228 | 37.12% | Q2 2014 | Jul 11, 2014 |
| METROPOLITAN LIFE INSURANCE CO/NY | History | Added to | 19,214 | 368 | 0.0% | 0.0% | 18 | +11,227 | 140.57% | Q2 2014 | Jul 31, 2014 |
| RHUMBLINE ADVISERS | History | Added to | 19,004 | 364 | 0.0% | 0.0% | 19 | +11,919 | 168.23% | Q2 2014 | Aug 06, 2014 |
| Nationwide Fund Advisors | History | Added to | 18,570 | 355 | 0.0% | 0.0% | 20 | +12,643 | 213.31% | Q2 2014 | Aug 11, 2014 |
| AMERICAN INTERNATIONAL GROUP INC | History | Added to | 16,980 | 324 | 0.0% | 0.0% | 21 | +10,730 | 171.68% | Q2 2014 | Aug 08, 2014 |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | History | New | 16,282 | 312 | 0.0% | — | 22 | +16,282 | New | Q2 2014 | Aug 07, 2014 |
| Swiss National Bank | History | Added to | 13,500 | 258 | 0.0% | 0.0% | 23 | +2,900 | 27.36% | Q2 2014 | Aug 06, 2014 |
| ProShare Advisors LLC | History | Added to | 11,786 | 226 | 0.0% | 0.0% | 24 | +3,927 | 49.97% | Q2 2014 | Aug 08, 2014 |
| BLACKROCK ADVISORS LLC | History | Added to | 10,309 | 197 | 0.0% | 3.54% | 25 | +6,188 | 150.16% | Q2 2014 | Aug 06, 2014 |
| BLAIR WILLIAM & CO/IL | History | Reduced | 10,100 | 193 | 0.0% | 0.0% | 26 | -5,500 | -35.26% | Q2 2014 | Aug 01, 2014 |
| State of New Jersey Common Pension Fund D | History | New | 10,000 | 191 | 0.0% | — | 27 | +10,000 | New | Q2 2014 | Aug 11, 2014 |
| GAGNON SECURITIES LLC | History | New | 8,786 | 168 | 0.05% | — | 28 | +8,786 | New | Q2 2014 | Jul 31, 2014 |
| EMERALD ADVISERS INC/PA | History | Reduced | 7,265 | 139 | 0.01% | 0.59% | 29 | -337,377 | -97.89% | Q2 2014 | Jul 17, 2014 |
| RidgeWorth Capital Management LLC | History | New | 2,063 | 39 | 0.0% | — | 30 | +2,063 | New | Q2 2014 | Jul 31, 2014 |
| Apriem Advisors | History | Added to | 1,275 | 24 | 0.01% | 0.01% | 31 | +625 | 96.15% | Q2 2014 | Aug 11, 2014 |
| Quantbot Technologies LP | History | Reduced | 641 | 12 | 0.0% | 0.01% | 32 | -559 | -46.58% | Q2 2014 | Jul 08, 2014 |
| BlackRock Inc. | History | Added to | 590 | 11 | 0.0% | 0.0% | 33 | +428 | 264.2% | Q2 2014 | Aug 06, 2014 |
| TEACHER RETIREMENT SYSTEM OF TEXAS | History | Added to | 397 | 8 | 0.0% | 0.0% | 34 | +105 | 35.96% | Q2 2014 | Aug 05, 2014 |
| Highland Management Partners VII, LLC | History | Closed out | 0 | 0 | — | 64.11% | — | -5,774,500 | -100.0% | Q1 2014 | May 13, 2014 |
| JPMORGAN CHASE & CO | History | Closed out | 0 | 0 | — | 0.01% | — | -1,659,547 | -100.0% | Q1 2014 | May 15, 2014 |
| Cortina Asset Management, LLC | History | Closed out | 0 | 0 | — | 1.03% | — | -938,306 | -100.0% | Q1 2014 | May 13, 2014 |
| Shannon River Fund Management LLC | History | Closed out | 0 | 0 | — | 1.74% | — | -901,000 | -100.0% | Q1 2014 | May 15, 2014 |
| NEXT CENTURY GROWTH INVESTORS LLC | History | Closed out | 0 | 0 | — | 0.64% | — | -706,377 | -100.0% | Q1 2014 | May 14, 2014 |
| Polar Capital LLP | History | Closed out | 0 | 0 | — | 0.36% | — | -519,094 | -100.0% | Q1 2014 | May 07, 2014 |
| LOOMIS SAYLES & CO L P | History | Closed out | 0 | 0 | — | 0.04% | — | -508,916 | -100.0% | Q1 2014 | May 15, 2014 |
| WELLS FARGO & COMPANY/MN | History | Closed out | 0 | 0 | — | 0.01% | — | -494,928 | -100.0% | Q1 2014 | May 15, 2014 |
| TEACHERS ADVISORS INC | History | Closed out | 0 | 0 | — | 0.02% | — | -300,230 | -100.0% | Q1 2014 | May 13, 2014 |
| Cupps Capital Management, LLC | History | Closed out | 0 | 0 | — | 0.69% | — | -298,461 | -100.0% | Q1 2014 | May 12, 2014 |
| EMERALD MUTUAL FUND ADVISERS TRUST | History | Closed out | 0 | 0 | — | 0.84% | — | -289,530 | -100.0% | Q1 2014 | Apr 30, 2014 |
| WALL STREET ASSOCIATES | History | Closed out | 0 | 0 | — | 0.64% | — | -259,411 | -100.0% | Q1 2014 | May 13, 2014 |
| CADENCE CAPITAL MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.32% | — | -246,428 | -100.0% | Q1 2014 | Apr 28, 2014 |
| WELLINGTON MANAGEMENT CO LLP | History | Closed out | 0 | 0 | — | 0.0% | — | -246,235 | -100.0% | Q1 2014 | May 15, 2014 |
| DRIEHAUS CAPITAL MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.2% | — | -205,258 | -100.0% | Q1 2014 | May 15, 2014 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Closed out | 0 | 0 | — | 0.0% | — | -198,769 | -100.0% | Q1 2014 | May 14, 2014 |
| Bank of New York Mellon Corp | History | Closed out | 0 | 0 | — | 0.0% | — | -177,283 | -100.0% | Q1 2014 | May 14, 2014 |
| MORGAN STANLEY | History | Closed out | 0 | 0 | — | 0.0% | — | -145,043 | -100.0% | Q1 2014 | May 13, 2014 |
| FMR LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -143,300 | -100.0% | Q1 2014 | May 15, 2014 |
| PEAK6 Investments, L.P. | History | Closed out | 0 | 0 | — | 0.04% | — | -139,500 | -100.0% | Q1 2014 | May 19, 2014 |
| NORTHERN TRUST CORP | History | Closed out | 0 | 0 | — | 0.0% | — | -117,089 | -100.0% | Q1 2014 | May 14, 2014 |
| Tygh Capital Management, Inc. | History | Closed out | 0 | 0 | — | 0.7% | — | -113,263 | -100.0% | Q1 2014 | Apr 30, 2014 |
| STATE STREET CORP | History | Closed out | 0 | 0 | — | 0.0% | — | -109,388 | -100.0% | Q1 2014 | May 15, 2014 |
| RUSSELL FRANK CO/ | History | Closed out | 0 | 0 | — | 0.0% | — | -99,501 | -100.0% | Q1 2014 | May 16, 2014 |
| CITADEL ADVISORS LLC | History | Closed out | 0 | 0 | — | 3.95% | — | -90,245 | -100.0% | Q1 2014 | Aug 08, 2014 |
| AH Lisanti Capital Growth, LLC | History | Closed out | 0 | 0 | — | 1.13% | — | -86,175 | -100.0% | Q1 2014 | May 15, 2014 |
| BANK OF AMERICA CORP /DE/ | History | Closed out | 0 | 0 | — | 0.0% | — | -84,555 | -100.0% | Q1 2014 | May 15, 2014 |
| TIAA CREF INVESTMENT MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -79,920 | -100.0% | Q1 2014 | May 13, 2014 |
| Allianz Asset Management AG | History | Closed out | 0 | 0 | — | 0.0% | — | -75,000 | -100.0% | Q1 2014 | May 28, 2014 |
| UNITED SERVICES AUTOMOBILE ASSOCIATION | History | Closed out | 0 | 0 | — | 0.01% | — | -68,700 | -100.0% | Q1 2014 | May 22, 2014 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -64,679 | -100.0% | Q1 2014 | May 14, 2014 |
| MILLENNIUM MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -43,296 | -100.0% | Q1 2014 | May 15, 2014 |
| OBERWEIS ASSET MANAGEMENT INC/ | History | Closed out | 0 | 0 | — | 0.26% | — | -41,500 | -100.0% | Q1 2014 | May 15, 2014 |
| BATTERYMARCH FINANCIAL MANAGEMENT INC | History | Closed out | 0 | 0 | — | 0.02% | — | -38,300 | -100.0% | Q1 2014 | May 15, 2014 |
| JANE STREET GROUP, LLC | History | Closed out | 0 | 0 | — | 0.01% | — | -37,130 | -100.0% | Q1 2014 | May 15, 2014 |
| D. E. Shaw & Co., Inc. | History | Closed out | 0 | 0 | — | 0.0% | — | -32,849 | -100.0% | Q1 2014 | May 15, 2014 |
| Parallax Volatility Advisers, LLC | History | Closed out | 0 | 0 | — | 0.01% | — | -31,304 | -100.0% | Q1 2014 | May 15, 2014 |
| TIGER MANAGEMENT L.L.C. | History | Closed out | 0 | 0 | — | 0.28% | — | -28,500 | -100.0% | Q1 2014 | May 15, 2014 |
| Invesco Ltd. | History | Closed out | 0 | 0 | — | 0.0% | — | -27,364 | -100.0% | Q1 2014 | May 15, 2014 |
| TUDOR INVESTMENT CORP ET AL | History | Closed out | 0 | 0 | — | 0.03% | — | -26,339 | -100.0% | Q1 2014 | May 15, 2014 |
| Sterling Capital Management LLC | History | Closed out | 0 | 0 | — | 0.01% | — | -26,327 | -100.0% | Q1 2014 | May 16, 2014 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | History | Closed out | 0 | 0 | — | 0.01% | — | -26,060 | -100.0% | Q1 2014 | May 08, 2014 |
| UBS AG | History | Closed out | 0 | 0 | — | 0.0% | — | -25,200 | -100.0% | Q1 2014 | May 16, 2014 |
| SOROS FUND MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.01% | — | -25,000 | -100.0% | Q1 2014 | May 15, 2014 |
| DEUTSCHE BANK AG\ | History | Closed out | 0 | 0 | — | 0.0% | — | -22,843 | -100.0% | Q1 2014 | May 15, 2014 |
| KCG Holdings, Inc. | History | Closed out | 0 | 0 | — | 0.01% | — | -20,796 | -100.0% | Q1 2014 | May 15, 2014 |
| DEERE & CO | History | Closed out | 0 | 0 | — | 0.04% | — | -20,179 | -100.0% | Q1 2014 | May 08, 2014 |
| GOLDMAN SACHS GROUP INC | History | Closed out | 0 | 0 | — | 0.0% | — | -19,159 | -100.0% | Q1 2014 | May 15, 2014 |
| STRS OHIO | History | Closed out | 0 | 0 | — | 0.0% | — | -17,670 | -100.0% | Q1 2014 | Apr 28, 2014 |
| CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM | History | Closed out | 0 | 0 | — | 0.0% | — | -15,491 | -100.0% | Q1 2014 | Apr 18, 2014 |
| Spot Trading L.L.C | History | Closed out | 0 | 0 | — | 0.0% | — | -15,000 | -100.0% | Q1 2014 | May 13, 2014 |
| PARAMETRIC PORTFOLIO ASSOCIATES LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -14,219 | -100.0% | Q1 2014 | May 13, 2014 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | History | Closed out | 0 | 0 | — | 0.0% | — | -14,100 | -100.0% | Q1 2014 | May 08, 2014 |
| SECOR Capital Advisors, LP | History | Closed out | 0 | 0 | — | 0.21% | — | -14,033 | -100.0% | Q1 2014 | Apr 28, 2014 |
| LOS ANGELES CAPITAL MANAGEMENT & EQUITY RESEARCH INC | History | Closed out | 0 | 0 | — | 0.0% | — | -11,505 | -100.0% | Q1 2014 | May 12, 2014 |
| PANAGORA ASSET MANAGEMENT INC | History | Closed out | 0 | 0 | — | 0.0% | — | -11,338 | -100.0% | Q1 2014 | May 15, 2014 |
| Marshall Wace LLP | History | Closed out | 0 | 0 | — | 0.01% | — | -11,300 | -100.0% | Q1 2014 | May 14, 2014 |
| State of New Jersey Common Pension Fund A | History | Closed out | 0 | 0 | — | 0.0% | — | -10,000 | -100.0% | Q1 2014 | May 05, 2014 |
| FIRST MERCANTILE TRUST CO | History | Closed out | 0 | 0 | — | 0.02% | — | -8,987 | -100.0% | Q1 2014 | Apr 24, 2014 |
| ELLINGTON MANAGEMENT GROUP LLC | History | Closed out | 0 | 0 | — | 0.07% | — | -8,400 | -100.0% | Q1 2014 | May 15, 2014 |
| AlphaOne Investment Services, LLC | History | Closed out | 0 | 0 | — | 0.05% | — | -7,170 | -100.0% | Q1 2014 | May 15, 2014 |
| SAC Capital Advisors LP | History | Closed out | 0 | 0 | — | 0.0% | — | -6,740 | -100.0% | Q1 2014 | May 15, 2014 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | History | Closed out | 0 | 0 | — | 0.0% | — | -6,679 | -100.0% | Q1 2014 | May 15, 2014 |
| Absolute Return Capital, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -4,512 | -100.0% | Q1 2014 | May 15, 2014 |
| Partnervest Advisory Services LLC | History | Closed out | 0 | 0 | — | 0.06% | — | -4,500 | -100.0% | Q1 2014 | May 12, 2014 |
| BlackRock Group LTD | History | Closed out | 0 | 0 | — | 0.0% | — | -1,900 | -100.0% | Q1 2014 | May 02, 2014 |
| CITIGROUP INC | History | Closed out | 0 | 0 | — | 0.0% | — | -1,548 | -100.0% | Q1 2014 | May 15, 2014 |
| SPRINGBOK CAPITAL MANAGEMENT, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -1,100 | -100.0% | Q1 2014 | May 15, 2014 |
| BARCLAYS PLC | History | Closed out | 0 | 0 | — | 0.0% | — | -1,056 | -100.0% | Q1 2014 | May 15, 2014 |
| MAZAMA CAPITAL MANAGEMENT INC | History | Closed out | 0 | 0 | — | 0.02% | — | -865 | -100.0% | Q1 2014 | Apr 03, 2014 |
| Tower Research Capital LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -734 | -100.0% | Q1 2014 | May 02, 2014 |
| US BANCORP \DE\ | History | Closed out | 0 | 0 | — | 0.0% | — | -575 | -100.0% | Q1 2014 | May 14, 2014 |
| ROYAL BANK OF CANADA | History | Closed out | 0 | 0 | — | 0.0% | — | -350 | -100.0% | Q1 2014 | May 15, 2014 |
| AMERIPRISE FINANCIAL INC | History | Closed out | 0 | 0 | — | 0.0% | — | -250 | -100.0% | Q1 2014 | May 14, 2014 |
| PATHSTONE FAMILY OFFICE, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -31 | -100.0% | Q1 2014 | May 07, 2014 |
| BNP PARIBAS ARBITRAGE, SA | History | Closed out | 0 | 0 | — | — | — | -21 | -100.0% | Q1 2014 | May 13, 2014 |
| PNC FINANCIAL SERVICES GROUP, INC. | History | Closed out | 0 | 0 | — | 0.0% | — | -17 | -100.0% | Q1 2014 | May 09, 2014 |
| PRIVATE TRUST CO NA | History | New | 15 | 0 | — | — | — | +15 | New | Q2 2014 | Jul 22, 2014 |