GSI Technology Inc: which funds bought and sold
Institutions that bought and sold GSI Technology shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.
Between March 31, 2026 and June 30, 2026, 61 institutions that filed 13F reports for both quarters added to or opened positions in GSI Technology, and 35 cut or closed them. Together they added a net 3.9M shares, +39.4% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 1.4M shares (+43.5%); index fund managers were net buyers of 3.2M shares (+123.3%). 35 opened a new position and 17 sold out entirely.
Bought, Q2 2026 61 institutions, 35 of them new holders Sold, Q2 2026 35 institutions, 17 of them sold out
Net change, all compared +3.9M shares (+39.4%)
Net change, active managers +1.4M shares (+43.5%), 11 bought, 10 sold
Buyers versus sellers
61 bought 9 35 sold
Active managers and hedge funds 11 bought · 10 sold · +1.4M
Index fund managers 11 bought · 0 sold · +3.2M
Other institutions 39 bought · 25 sold · −695K
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Blackrock, Inc. Index funds | +1.9M +341.1% | 2.4M | $18.6M |
| Marshall Wace, LLP Hedge fund | +484K +75.7% | 1.1M | $8.7M |
| Geode Capital Management, LLC Index funds | +451K +128.7% | 802K | $6.2M |
| Price T Rowe Associates Inc Active manager | +394K +53.1% | 1.1M | $8.8M |
| Two Sigma Investments, LP Hedge fund | +346K +65.2% | 876K | $6.8M |
| Qube Research & Technologies Ltd Hedge fund | +334K +1918.4% | 351K | $2.7M |
| State Street Corp Index funds | +268K +193.1% | 407K | $3.1M |
| T. Rowe Price Investment Management, Inc. Active manager | +226K New position | 226K | $1.7M |
| Vanguard Portfolio Management LLC Index funds | +218K New position | 218K | $1.7M |
| Connor, Clark & Lunn Investment Management Ltd. | +192K +165.2% | 309K | $2.4M |
| Northern Trust Corp Index funds | +177K +290.6% | 238K | $1.8M |
| Trexquant Investment LP Hedge fund | +124K New position | 124K | $962,362 |
| Gsa Capital Partners LLP | +107K +150.1% | 178K | $1.4M |
| Xtx Topco Ltd | +98K +839.3% | 110K | $847,734 |
| Charles Schwab Investment Management Inc Index funds | +77K +428.8% | 95K | $735,911 |
| Vanguard Capital Management LLC Index funds | +72K +5.6% | 1.4M | $10.4M |
| Bank Of New York Mellon Corp | +70K New position | 70K | $537,885 |
| Renaissance Technologies LLC Hedge fund | +64K +81.6% | 143K | $1.1M |
| Nuveen, LLC | +42K New position | 42K | $324,598 |
| Rhumbline Advisers Index funds | +35K New position | 35K | $270,944 |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Marshall Wace, LLP Hedge fund | +484K +75.7% | 1.1M | $8.7M |
| Price T Rowe Associates Inc Active manager | +394K +53.1% | 1.1M | $8.8M |
| Two Sigma Investments, LP Hedge fund | +346K +65.2% | 876K | $6.8M |
| Qube Research & Technologies Ltd Hedge fund | +334K +1918.4% | 351K | $2.7M |
| T. Rowe Price Investment Management, Inc. Active manager | +226K New position | 226K | $1.7M |
| Trexquant Investment LP Hedge fund | +124K New position | 124K | $962,362 |
| Renaissance Technologies LLC Hedge fund | +64K +81.6% | 143K | $1.1M |
| Alliancebernstein L.P. Active manager | +26K New position | 26K | $133,640 |
| American Century Companies Inc Active manager | +20K New position | 20K | $153,518 |
| Algert Global LLC Hedge fund | +20K New position | 20K | $153,131 |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Susquehanna International Group, LLP | −390K −84.0% | 74K | $573,118 |
| Jane Street Group, LLC | −230K −66.9% | 114K | $879,172 |
| Potomac Capital Management, Inc. | −180K −51.7% | 168K | $1.3M |
| Tidal Investments LLC | −153K Sold out | 0 | — |
| UBS Group AG | −143K −46.8% | 163K | $1.3M |
| Citadel Advisors LLC Hedge fund | −137K −71.4% | 55K | $423,179 |
| 683 Capital Management, LLC Hedge fund | −119K Sold out | 0 | — |
| Goldman Sachs Group Inc | −110K −69.7% | 48K | $370,151 |
| Millennium Management LLC Hedge fund | −90K −21.0% | 340K | $2.6M |
| Squarepoint Ops LLC Hedge fund | −80K −58.9% | 56K | $430,244 |
| Sih Partners, LLLP | −78K Sold out | 0 | — |
| Hudson Bay Capital Management LP Hedge fund | −54K Sold out | 0 | — |
| Brevan Howard Capital Management LP Hedge fund | −49K Sold out | 0 | — |
| Arrowstreet Capital, Limited Partnership Hedge fund | −41K Sold out | 0 | — |
| Schonfeld Strategic Advisors LLC Hedge fund | −40K Sold out | 0 | — |
| Bank Of America Corp | −40K −40.6% | 58K | $448,464 |
| Imc-Chicago, LLC | −34K −53.5% | 30K | $228,592 |
| Mangrove Partners Im, LLC Hedge fund | −33K Sold out | 0 | — |
| Two Sigma Securities, LLC | −29K Sold out | 0 | — |
| Scientech Research LLC | −25K Sold out | 0 | — |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Citadel Advisors LLC Hedge fund | −137K −71.4% | 55K | $423,179 |
| 683 Capital Management, LLC Hedge fund | −119K Sold out | 0 | — |
| Millennium Management LLC Hedge fund | −90K −21.0% | 340K | $2.6M |
| Squarepoint Ops LLC Hedge fund | −80K −58.9% | 56K | $430,244 |
| Hudson Bay Capital Management LP Hedge fund | −54K Sold out | 0 | — |
| Brevan Howard Capital Management LP Hedge fund | −49K Sold out | 0 | — |
| Arrowstreet Capital, Limited Partnership Hedge fund | −41K Sold out | 0 | — |
| Schonfeld Strategic Advisors LLC Hedge fund | −40K Sold out | 0 | — |
| Mangrove Partners Im, LLC Hedge fund | −33K Sold out | 0 | — |
| Centiva Capital, LP Hedge fund | −15K Sold out | 0 | — |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| T. Rowe Price Investment Management, Inc.Active manager | 226K | $1.7M |
| Vanguard Portfolio Management LLCIndex funds | 218K | $1.7M |
| Trexquant Investment LPHedge fund | 124K | $962,362 |
| Bank Of New York Mellon Corp | 70K | $537,885 |
| Nuveen, LLC | 42K | $324,598 |
| Rhumbline AdvisersIndex funds | 35K | $270,944 |
| Deutsche Bank Ag\ | 31K | $243,108 |
| Invesco Ltd. | 28K | $214,337 |
| Fox Run Management, L.L.C. | 26K | $198,901 |
| Hb Wealth Management, LLC | 20K | $154,600 |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Tidal Investments LLC | 153K | $784,688 |
| 683 Capital Management, LLCHedge fund | 119K | $610,812 |
| Sih Partners, LLLP | 78K | $398,550 |
| Hudson Bay Capital Management LPHedge fund | 54K | $279,914 |
| Brevan Howard Capital Management LPHedge fund | 49K | $251,916 |
| Arrowstreet Capital, Limited PartnershipHedge fund | 41K | $212,991 |
| Schonfeld Strategic Advisors LLCHedge fund | 40K | $207,995 |
| Mangrove Partners Im, LLCHedge fund | 33K | $167,703 |
| Two Sigma Securities, LLC | 29K | $147,415 |
| Scientech Research LLC | 25K | $126,043 |
Who holds the shares
- Institutions reporting
- 88
- Ten largest holders
- 70.6% of 13F-reported shares
- Index fund managers
- 42.1% of 13F-reported shares
- Active managers and hedge funds
- 33.1% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 11 | 10 | 5 | 7 | +1.4M | +43.5% |
| Index fund managers | 11 | 0 | 3 | 0 | +3.2M | +123.3% |
| Other institutions | 39 | 25 | 27 | 10 | −695K | −16.9% |