Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in GSIT held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT LLC | 1.3M | $6.6M | — | 3.705% | 0.00% |
| 2 | Silverberg Bernstein Capital Management LLC | 786K | $4.0M | +1.5% | 2.277% | 2.22% |
| 3 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 734K | $3.8M | -21.4% | 2.127% | 0.00% |
| 4 | MARSHALL WACE, LLP | 639K | $3.3M | -12.1% | 1.852% | 0.00% |
| 5 | BlackRock, Inc. | 544K | $2.8M | +7.4% | 1.576% | 0.00% |
| 6 | TWO SIGMA INVESTMENTS, LP | 530K | $2.7M | +6.0% | 1.536% | 0.00% |
| 7 | WELLS FARGO & COMPANY/MN | 440K | $2.3M | — | 1.275% | 0.00% |
| 8 | CITADEL ADVISORS LLC | 437K | $2.2M | +23.3% | 1.267% | 0.00% |
| 9 | MILLENNIUM MANAGEMENT LLC | 430K | $2.2M | +837.6% | 1.246% | 0.00% |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 351K | $1.8M | +7.7% | 1.016% | 0.00% |
| 11 | Potomac Capital Management, Inc. | 348K | $1.8M | — | 1.010% | 1.56% |
| 12 | UBS Group AG | 306K | $1.6M | -4.7% | 0.886% | 0.00% |
| 13 | VANGUARD FIDUCIARY TRUST CO | 185K | $953K | — | 0.537% | 0.00% |
| 14 | GOLDMAN SACHS GROUP INC | 158K | $812K | -16.6% | 0.458% | 0.00% |
| 15 | STATE STREET CORP | 139K | $714K | +30.8% | 0.402% | 0.00% |
| 16 | Squarepoint Ops LLC | 135K | $695K | +15.8% | 0.392% | 0.00% |
| 17 | 683 Capital Management, LLC | 119K | $611K | 0.0% | 0.344% | 0.05% |
| 18 | Connor, Clark & Lunn Investment Management Ltd. | 116K | $598K | +34.6% | 0.337% | 0.00% |
| 19 | ADVISOR GROUP HOLDINGS, INC. | 101K | $521K | +15.1% | 0.293% | 0.00% |
| 20 | BANK OF AMERICA CORP /DE/ | 98K | $502K | +535.6% | 0.283% | 0.00% |
| 21 | COMMONWEALTH EQUITY SERVICES, LLC | 93K | $476K | +4.0% | 0.268% | 0.00% |
| 22 | MORGAN STANLEY | 86K | $441K | -11.2% | 0.249% | 0.00% |
| 23 | RENAISSANCE TECHNOLOGIES LLC | 79K | $405K | -32.3% | 0.228% | 0.00% |
| 24 | SIH Partners, LLLP | 78K | $399K | — | 0.225% | 0.01% |
| 25 | IMC-Chicago, LLC | 64K | $327K | -4.3% | 0.184% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in GSIT — a direct measure of their conviction.
Filings activity in GSIT during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new GSIT position in Q1 2026
Institutions that fully closed their GSIT position in Q1 2026
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 67 | +8.1% | 17.07% | 2.87 pp | $46M | 14% |
| Q4 2025 | 62 | +22% | 19.94% | +12.77 pp | $54M | +178% |
| Q3 2025 | 51 | +2.0% | 7.17% | +2.28 pp | $20M | +47% |
| Q2 2025 | 50 | +47% | 4.89% | +1.52 pp | $13M | +45% |
| Q1 2025 | 34 | 11% | 3.37% | +0.42 pp | $9M | +14% |
| Q4 2024 | 38 | +23% | 2.95% | +0.04 pp | $8M | +1.4% |
| Q3 2024 | 31 | 8.8% | 2.91% | +0.34 pp | $8M | +13% |
| Q2 2024 | 34 | — | 2.57% | — | $7M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying GSIT stock.
Based on Q1 2026 13F filings, institutional ownership of GSI Technology, Inc. stands at 17.1%, held across 67 reporting institutions.
VANGUARD CAPITAL MANAGEMENT LLC is the largest reported institutional holder of GSIT, with approximately 1,278,432 shares worth $0.01B as of Q1 2026.
Yes — 5 widely-followed marquee investors appear among the top 25 institutional holders of GSIT, including SUSQUEHANNA INTERNATIONAL GROUP, LLP, TWO SIGMA INVESTMENTS, LP, CITADEL ADVISORS LLC, MILLENNIUM MANAGEMENT LLC, RENAISSANCE TECHNOLOGIES LLC.
Our composite Smart Money Score for GSIT is 59 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
20 institutions opened new positions in GSIT during Q1 2026, while 15 fully exited. 11 added to existing positions and 36 trimmed.
GSIT institutional ownership fell by 2.87 percentage points quarter-over-quarter, with a net change of +5 holders.
The top 10 institutions account for 68.2% of all reported 13F value in GSIT, and the top 25 account for 91.5%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
GSI Technology, Inc. (GSIT) Institutional Ownership