GSIT GSI Technology
GSI Technology (GSIT) Institutional Ownership
What the institutions did with GSIT last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 2.4M | 17.4% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.4M | 9.8% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 1.1M | 8.2% |
| MARSHALL WACE, LLP | 1.1M | 8.1% |
| TWO SIGMA INVESTMENTS, LP | 875.9K | 6.4% |
| GEODE CAPITAL MANAGEMENT, LLC | 801.9K | 5.8% |
| Silverberg Bernstein Capital Management LLC | 783.3K | 5.7% |
| WELLS FARGO & COMPANY/MN | 469.0K | 3.4% |
| STATE STREET CORP | 407.0K | 3.0% |
| Qube Research & Technologies Ltd | 351.4K | 2.5% |
| MILLENNIUM MANAGEMENT LLC | 339.6K | 2.5% |
| Connor, Clark & Lunn Investment Management Ltd. | 308.5K | 2.2% |
| NORTHERN TRUST CORP | 238.5K | 1.7% |
| T. Rowe Price Investment Management, Inc. | 225.8K | 1.6% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 217.7K | 1.6% |
| VANGUARD FIDUCIARY TRUST CO | 214.9K | 1.6% |
| GSA CAPITAL PARTNERS LLP | 178.2K | 1.3% |
| Potomac Capital Management, Inc. | 168.1K | 1.2% |
| UBS Group AG | 162.6K | 1.2% |
| RENAISSANCE TECHNOLOGIES LLC | 142.9K | 1.0% |
| Trexquant Investment LP | 124.5K | 0.9% |
| JANE STREET GROUP, LLC | 113.7K | 0.8% |
| XTX Topco Ltd | 109.7K | 0.8% |
| OSAIC HOLDINGS, INC. | 100.5K | 0.7% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 95.2K | 0.7% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| BlackRock, Inc. | Increased | 544.0K | 2.4M | +1.9M |
| MARSHALL WACE, LLP | Increased | 639.0K | 1.1M | +483.7K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 350.7K | 801.9K | +451.2K |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 742.7K | 1.1M | +394.0K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 464.0K | 74.1K | -389.9K |
| TWO SIGMA INVESTMENTS, LP | Increased | 530.2K | 875.9K | +345.7K |
| Qube Research & Technologies Ltd | Increased | 17.4K | 351.4K | +334.0K |
| STATE STREET CORP | Increased | 138.8K | 407.0K | +268.1K |
| JANE STREET GROUP, LLC | Reduced | 343.5K | 113.7K | -229.8K |
| T. Rowe Price Investment Management, Inc. | New | 0 | 225.8K | +225.8K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New | 0 | 217.7K | +217.7K |
| Connor, Clark & Lunn Investment Management Ltd. | Increased | 116.4K | 308.5K | +192.2K |
| Potomac Capital Management, Inc. | Reduced | 348.4K | 168.1K | -180.3K |
| NORTHERN TRUST CORP | Increased | 61.0K | 238.5K | +177.4K |
| Tidal Investments LLC | Sold Out | 152.7K | 0 | -152.7K |
| UBS Group AG | Reduced | 305.7K | 162.6K | -143.2K |
| CITADEL ADVISORS LLC | Reduced | 191.4K | 54.7K | -136.6K |
| Trexquant Investment LP | New | 0 | 124.5K | +124.5K |
| 683 Capital Management, LLC | Sold Out | 118.8K | 0 | -118.8K |
| GOLDMAN SACHS GROUP INC | Reduced | 158.0K | 47.9K | -110.2K |
| GSA CAPITAL PARTNERS LLP | Increased | 71.2K | 178.2K | +106.9K |
| XTX Topco Ltd | Increased | 11.7K | 109.7K | +98.0K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 429.8K | 339.6K | -90.2K |
| Squarepoint Ops LLC | Reduced | 135.3K | 55.7K | -79.6K |
| SIH Partners, LLLP | Sold Out | 77.5K | 0 | -77.5K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Increased | 18.0K | 95.2K | +77.2K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 1.3M | 1.4M | +71.9K |
| Bank of New York Mellon Corp | New | 0 | 69.6K | +69.6K |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 78.7K | 142.9K | +64.2K |
| Hudson Bay Capital Management LP | Sold Out | 54.5K | 0 | -54.5K |
| Brevan Howard Capital Management LP | Sold Out | 49.0K | 0 | -49.0K |
| HRT FINANCIAL LP | New | 0 | 46.0K | +46.0K |
| Nuveen, LLC | New | 0 | 42.0K | +42.0K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Sold Out | 41.4K | 0 | -41.4K |
| Schonfeld Strategic Advisors LLC | Sold Out | 40.5K | 0 | -40.5K |
| BANK OF AMERICA CORP /DE/ | Reduced | 97.7K | 58.0K | -39.7K |
| RHUMBLINE ADVISERS | New | 0 | 35.1K | +35.1K |
| IMC-Chicago, LLC | Reduced | 63.6K | 29.6K | -34.1K |
| MANGROVE PARTNERS IM, LLC | Sold Out | 32.6K | 0 | -32.6K |
| DEUTSCHE BANK AG\ | New | 0 | 31.5K | +31.5K |
| VANGUARD FIDUCIARY TRUST CO | Increased | 185.3K | 214.9K | +29.6K |
| WELLS FARGO & COMPANY/MN | Increased | 440.0K | 469.0K | +29.0K |
| TWO SIGMA SECURITIES, LLC | Sold Out | 28.7K | 0 | -28.7K |
| Invesco Ltd. | New | 0 | 27.7K | +27.7K |
| JPMORGAN CHASE & CO | Increased | 29 | 26.8K | +26.8K |
| ALLIANCEBERNSTEIN L.P. | New | 0 | 26.0K | +26.0K |
| FOX RUN MANAGEMENT, L.L.C. | New | 0 | 25.7K | +25.7K |
| Scientech Research LLC | Sold Out | 24.5K | 0 | -24.5K |
| HB Wealth Management, LLC | New | 0 | 20.0K | +20.0K |
| AMERICAN CENTURY COMPANIES INC | New | 0 | 19.9K | +19.9K |
| ALGERT GLOBAL LLC | New | 0 | 19.8K | +19.8K |
| MetLife Investment Management, LLC | New | 0 | 19.1K | +19.1K |
| Virtu Financial LLC | Sold Out | 18.9K | 0 | -18.9K |
| OMERS ADMINISTRATION Corp | Sold Out | 17.0K | 0 | -17.0K |
| SIMPLEX TRADING, LLC | Sold Out | 16.6K | 0 | -16.6K |
| STRS OHIO | New | 0 | 15.0K | +15.0K |
| Centiva Capital, LP | Sold Out | 15.0K | 0 | -15.0K |
| NEW YORK STATE COMMON RETIREMENT FUND | New | 0 | 14.6K | +14.6K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | New | 0 | 14.6K | +14.6K |
| CITIGROUP INC | Increased | 4.5K | 18.9K | +14.4K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.