GSI TECHNOLOGY INC - GSIT
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 | No change | 1,453,236 | 9,024 | 0.0% | 0.0% | 1 | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | History | New | 1,278,432 | 6,571 | 0.0% | — | 2 | +1,278,432 | New | Q1 2026 | May 15, 2026 |
| Silverberg Bernstein Capital Management LLC | History | Added to | 785,706 | 4,038 | 2.22% | 2.78% | 3 | +11,200 | 1.45% | Q1 2026 | Apr 16, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | History | New | 742,670 | 3,818 | 0.0% | — | 4 | +742,670 | New | Q1 2026 | May 15, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Reduced | 734,030 | 3,772 | 0.0% | 0.0% | 5 | -200,023 | -21.41% | Q1 2026 | May 15, 2026 |
| MARSHALL WACE, LLP | History | Reduced | 639,027 | 3,284 | 0.0% | 0.0% | 6 | -88,050 | -12.11% | Q1 2026 | May 14, 2026 |
| BlackRock, Inc. | History | Added to | 543,998 | 2,796 | 0.0% | 0.0% | 7 | +37,378 | 7.38% | Q1 2026 | May 13, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Added to | 530,204 | 2,725 | 0.0% | 0.0% | 8 | +29,840 | 5.96% | Q1 2026 | May 15, 2026 |
| WELLS FARGO & COMPANY/MN | History | New | 440,000 | 2,261 | 0.0% | — | 9 | +440,000 | New | Q1 2026 | May 11, 2026 |
| CITADEL ADVISORS LLC | History | Added to | 437,292 | 2,247 | 0.0% | 0.0% | 10 | +82,537 | 23.27% | Q1 2026 | May 15, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Added to | 429,819 | 2,209 | 0.0% | 0.0% | 11 | +383,976 | 837.59% | Q1 2026 | May 15, 2026 |
| JANE STREET GROUP, LLC | History | Added to | 420,122 | 2,159 | 0.0% | 0.0% | 12 | +199,028 | 90.02% | Q1 2026 | May 12, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 350,694 | 1,803 | 0.0% | 0.0% | 13 | +25,127 | 7.72% | Q1 2026 | May 15, 2026 |
| Potomac Capital Management, Inc. | History | New | 348,400 | 1,790 | 1.56% | — | 14 | +348,400 | New | Q1 2026 | May 14, 2026 |
| UBS Group AG | History | Reduced | 305,749 | 1,571 | 0.0% | 0.0% | 15 | -14,923 | -4.65% | Q1 2026 | May 05, 2026 |
| VANGUARD FIDUCIARY TRUST CO | History | New | 185,342 | 952 | 0.0% | — | 16 | +185,342 | New | Q1 2026 | May 08, 2026 |
| GOLDMAN SACHS GROUP INC | History | Reduced | 158,039 | 812 | 0.0% | 0.0% | 17 | -31,540 | -16.64% | Q1 2026 | May 15, 2026 |
| Tidal Investments LLC | History | Added to | 152,663 | 784 | 0.0% | 0.0% | 18 | +61,056 | 66.65% | Q1 2026 | May 15, 2026 |
| STATE STREET CORP | History | Added to | 138,842 | 713 | 0.0% | 0.0% | 19 | +32,700 | 30.81% | Q1 2026 | May 15, 2026 |
| Squarepoint Ops LLC | History | Added to | 135,303 | 695 | 0.0% | 0.0% | 20 | +18,496 | 15.83% | Q1 2026 | May 15, 2026 |
| 683 Capital Management, LLC | History | No change | 118,835 | 610 | 0.03% | 0.03% | 21 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Connor, Clark & Lunn Investment Management Ltd. | History | Added to | 116,353 | 598 | 0.0% | 0.0% | 22 | +29,922 | 34.62% | Q1 2026 | May 11, 2026 |
| IMC-Chicago, LLC | History | Reduced | 106,138 | 545 | 0.0% | 0.0% | 23 | -29,934 | -22.0% | Q1 2026 | May 05, 2026 |
| OSAIC HOLDINGS, INC. | History | Added to | 101,291 | 520 | 0.0% | 0.0% | 24 | +13,315 | 15.13% | Q1 2026 | May 15, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Added to | 97,677 | 502 | 0.0% | 0.0% | 25 | +82,308 | 535.55% | Q1 2026 | May 15, 2026 |
| COMMONWEALTH EQUITY SERVICES, LLC | History | Added to | 92,534 | 475 | 0.0% | 0.0% | 26 | +3,600 | 4.05% | Q1 2026 | Apr 27, 2026 |
| MORGAN STANLEY | History | Reduced | 85,882 | 441 | 0.0% | 0.0% | 27 | -10,849 | -11.22% | Q1 2026 | May 15, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Reduced | 78,701 | 404 | 0.0% | 0.0% | 28 | -37,600 | -32.33% | Q1 2026 | May 14, 2026 |
| SIH Partners, LLLP | History | New | 77,539 | 398 | 0.01% | — | 29 | +77,539 | New | Q1 2026 | May 15, 2026 |
| GSA CAPITAL PARTNERS LLP | History | Added to | 71,229 | 366 | 0.02% | 0.02% | 30 | +33,350 | 88.04% | Q1 2026 | May 08, 2026 |
| NORTHERN TRUST CORP | History | No change | 61,048 | 313 | 0.0% | 0.0% | 31 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | History | Added to | 54,500 | 280 | 0.01% | 0.0% | 32 | +30,000 | 122.45% | Q1 2026 | May 15, 2026 |
| Hudson Bay Capital Management LP | History | New | 54,458 | 279 | 0.0% | — | 33 | +54,458 | New | Q1 2026 | May 13, 2026 |
| DIMENSIONAL FUND ADVISORS LP | History | No change | 50,847 | 261 | 0.0% | 0.0% | 34 | 0 | 0.0% | Q1 2026 | May 07, 2026 |
| Brevan Howard Capital Management LP | History | New | 49,011 | 251 | 0.0% | — | 35 | +49,011 | New | Q1 2026 | May 15, 2026 |
| GROUP ONE TRADING LLC | History | Reduced | 47,000 | 241 | 0.0% | 0.0% | 36 | -111,655 | -70.38% | Q1 2026 | May 13, 2026 |
| SIMPLEX TRADING, LLC | History | Reduced | 44,967 | 231 | 0.0% | 0.0% | 37 | -71,347 | -61.34% | Q1 2026 | May 14, 2026 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | History | Reduced | 41,438 | 212 | 0.0% | 0.0% | 38 | -144,094 | -77.67% | Q1 2026 | May 14, 2026 |
| Schonfeld Strategic Advisors LLC | History | Added to | 40,466 | 207 | 0.0% | 0.0% | 39 | +27,364 | 208.85% | Q1 2026 | May 15, 2026 |
| CANADA PENSION PLAN INVESTMENT BOARD | History | Added to | 33,300 | 171 | 0.0% | 0.0% | 40 | +300 | 0.91% | Q1 2026 | May 15, 2026 |
| JB CAPITAL PARTNERS LP | History | No change | 33,000 | 169 | 0.03% | 0.04% | 41 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| MANGROVE PARTNERS IM, LLC | History | New | 32,627 | 167 | 0.01% | — | 42 | +32,627 | New | Q1 2026 | May 15, 2026 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | History | No change | 30,454 | 156 | 0.02% | 0.03% | 43 | 0 | 0.0% | Q1 2026 | May 11, 2026 |
| TWO SIGMA SECURITIES, LLC | History | New | 28,680 | 147 | 0.02% | — | 44 | +28,680 | New | Q1 2026 | May 15, 2026 |
| LPL Financial LLC | History | New | 27,946 | 143 | 0.0% | — | 45 | +27,946 | New | Q1 2026 | May 06, 2026 |
| BARCLAYS PLC | History | Reduced | 25,202 | 129 | 0.0% | 0.0% | 46 | -2,165 | -7.91% | Q1 2026 | May 14, 2026 |
| Scientech Research LLC | History | New | 24,522 | 126 | 0.11% | — | 47 | +24,522 | New | Q1 2026 | May 15, 2026 |
| Virtu Financial LLC | History | Added to | 18,930 | 97 | 0.0% | 0.0% | 48 | +6,742 | 55.32% | Q1 2026 | May 14, 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | History | New | 18,005 | 92 | 0.0% | — | 49 | +18,005 | New | Q1 2026 | May 15, 2026 |
| Qube Research & Technologies Ltd | History | New | 17,409 | 89 | 0.0% | — | 50 | +17,409 | New | Q1 2026 | May 15, 2026 |
| OMERS ADMINISTRATION Corp | History | Reduced | 17,000 | 87 | 0.0% | 0.0% | 51 | -3,500 | -17.07% | Q1 2026 | May 15, 2026 |
| Vanguard Personalized Indexing Management, LLC | History | Reduced | 15,726 | 80 | 0.0% | 0.0% | 52 | -1,022 | -6.1% | Q1 2026 | May 14, 2026 |
| Centiva Capital, LP | History | Reduced | 14,981 | 77 | 0.0% | 0.0% | 53 | -49,010 | -76.59% | Q1 2026 | May 14, 2026 |
| Vanguard Global Advisers, LLC | History | New | 14,042 | 72 | 0.0% | — | 54 | +14,042 | New | Q1 2026 | May 08, 2026 |
| NewEdge Advisors, LLC | History | Reduced | 13,740 | 70 | 0.0% | 0.0% | 55 | -2,592 | -15.87% | Q1 2026 | Jun 02, 2026 |
| Susquehanna Portfolio Strategies, LLC | History | No change | 12,600 | 64 | 0.0% | 0.0% | 56 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| XTX Topco Ltd | History | New | 11,675 | 60 | 0.0% | — | 57 | +11,675 | New | Q1 2026 | May 15, 2026 |
| Allworth Financial LP | History | Added to | 11,598 | 59 | 0.0% | 0.0% | 58 | +10,000 | 625.78% | Q1 2026 | May 14, 2026 |
| Diametric Capital, LP | History | New | 10,996 | 56 | 0.01% | — | 59 | +10,996 | New | Q1 2026 | May 15, 2026 |
| CIBC Private Wealth Group LLC | History | No change | 5,000 | 31 | 0.0% | 0.0% | 60 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| CITIGROUP INC | History | Reduced | 4,468 | 22 | 0.0% | 0.0% | 61 | -17,427 | -79.59% | Q1 2026 | May 11, 2026 |
| JONES FINANCIAL COMPANIES LLLP | History | Added to | 4,103 | 21 | 0.0% | 0.0% | 62 | +3,503 | 583.83% | Q1 2026 | May 15, 2026 |
| ROYAL BANK OF CANADA | History | Reduced | 2,106 | 11 | 0.0% | 0.0% | 63 | -1,021 | -32.65% | Q1 2026 | May 15, 2026 |
| Advisory Services Network, LLC | History | New | 2,000 | 10 | 0.0% | — | 64 | +2,000 | New | Q1 2026 | May 15, 2026 |
| Tower Research Capital LLC (TRC) | History | Reduced | 1,270 | 6 | 0.0% | 0.0% | 65 | -3,321 | -72.34% | Q1 2026 | May 15, 2026 |
| Steward Partners Investment Advisory, LLC | History | No change | 500 | 2 | 0.0% | 0.0% | 66 | 0 | 0.0% | Q1 2026 | May 08, 2026 |
| CoreCap Advisors, LLC | History | No change | 500 | 2 | 0.0% | 0.0% | 67 | 0 | 0.0% | Q1 2026 | Apr 07, 2026 |
| MAI Capital Management | History | New | 300 | 1 | 0.0% | — | 68 | +300 | New | Q1 2026 | May 15, 2026 |
| Concentric Capital Strategies, LP | History | Closed out | 0 | 0 | — | 0.1% | — | -340,664 | -100.0% | Q1 2026 | May 15, 2026 |
| DISCOVERY CAPITAL MANAGEMENT, LLC / CT | History | Closed out | 0 | 0 | — | 0.06% | — | -183,600 | -100.0% | Q1 2026 | May 15, 2026 |
| PEAK6 LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -57,600 | -100.0% | Q1 2026 | May 13, 2026 |
| Graham Capital Management, L.P. | History | Closed out | 0 | 0 | — | 0.01% | — | -55,886 | -100.0% | Q1 2026 | May 15, 2026 |
| Jump Financial, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -22,950 | -100.0% | Q1 2026 | May 14, 2026 |
| SYMMETRY PEAK MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.04% | — | -22,500 | -100.0% | Q1 2026 | May 15, 2026 |
| Lighthouse Investment Partners, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -17,280 | -100.0% | Q1 2026 | May 14, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -6,340 | -100.0% | Q1 2026 | May 13, 2026 |
| FNY Investment Advisers, LLC | History | Closed out | 0 | 0 | — | 0.01% | — | -4,000 | -100.0% | Q1 2026 | Apr 15, 2026 |
| MILLER WEALTH ADVISORS, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -300 | -100.0% | Q1 2026 | May 01, 2026 |
| Farther Finance Advisors, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -200 | -100.0% | Q1 2026 | Apr 07, 2026 |
| FMR LLC | History | Reduced | 123 | 0 | — | 0.0% | — | -108 | -46.75% | Q1 2026 | May 15, 2026 |
| EverSource Wealth Advisors, LLC | History | New | 77 | 0 | — | — | — | +77 | New | Q1 2026 | May 15, 2026 |
| SBI Securities Co., Ltd. | History | Reduced | 37 | 0 | — | — | — | -14 | -27.45% | Q1 2026 | Apr 27, 2026 |
| JPMORGAN CHASE & CO | History | No change | 29 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| HUNTINGTON NATIONAL BANK | History | No change | 1 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 15, 2026 |