Ranked by reported Q2 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 | BlackRock, Inc. | 2.4M | $18.6M | +341.2% | 6.426% | 0.00% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 1.4M | $10.4M | +5.6% | 3.616% | 0.00% |
| 3 | MARSHALL WACE, LLP | 1.1M | $8.7M | +75.7% | 3.006% | 0.01% |
| 4 | TWO SIGMA INVESTMENTS, LP | 876K | $6.8M | +65.2% | 2.345% | 0.00% |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 802K | $6.2M | +128.7% | 2.147% | 0.00% |
| 6 | Silverberg Bernstein Capital Management LLC | 783K | $6.1M | -0.3% | 2.097% | 2.32% |
| 7 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 668K | $5.2M | -9.0% | 1.788% | 0.00% |
| 8 | WELLS FARGO & COMPANY/MN | 469K | $3.6M | +6.6% | 1.256% | 0.00% |
| 9 | STATE STREET CORP | 407K | $3.1M | +193.1% | 1.090% | 0.00% |
| 10 | Qube Research & Technologies Ltd | 351K | $2.7M | +1918.4% | 0.941% | 0.00% |
| 11 | MILLENNIUM MANAGEMENT LLC | 340K | $2.6M | -21.0% | 0.909% | 0.00% |
| 12 | Connor, Clark & Lunn Investment Management Ltd. | 309K | $2.4M | +165.2% | 0.826% | 0.00% |
| 13 | NORTHERN TRUST CORP | 238K | $1.8M | +290.6% | 0.639% | 0.00% |
| 14 | VANGUARD PORTFOLIO MANAGEMENT LLC | 218K | $1.7M | — | 0.583% | 0.00% |
| 15 | VANGUARD FIDUCIARY TRUST CO | 215K | $1.7M | +16.0% | 0.575% | 0.00% |
| 16 | CITADEL ADVISORS LLC | 172K | $1.3M | -60.7% | 0.460% | 0.00% |
| 17 | Potomac Capital Management, Inc. | 168K | $1.3M | -51.7% | 0.450% | 0.89% |
| 18 | UBS Group AG | 163K | $1.3M | -46.8% | 0.435% | 0.00% |
| 19 | RENAISSANCE TECHNOLOGIES LLC | 143K | $1.1M | +81.6% | 0.383% | 0.00% |
| 20 | JANE STREET GROUP, LLC | 135K | $1.0M | -67.9% | 0.361% | 0.00% |
| 21 | Trexquant Investment LP | 124K | $962K | — | 0.333% | 0.01% |
| 22 | XTX Topco Ltd | 110K | $848K | +839.3% | 0.294% | 0.01% |
| 23 | PEAK6 LLC | 101K | $779K | — | 0.270% | 0.00% |
| 24 | OSAIC HOLDINGS, INC. | 100K | $777K | -0.8% | 0.269% | 0.00% |
| 25 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 95K | $736K | +428.7% | 0.255% | 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 Q2 2026, grouped by how each filer changed its position.
Institutions that opened a new GSIT position in Q2 2026
Institutions that fully closed their GSIT position in Q2 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 |
|---|---|---|---|---|---|---|
| Q2 2026 | 90 | +30% | 39.03% | +11.44 pp | $101M | +107% |
| Q1 2026 | 69 | +7.8% | 27.59% | +3.54 pp | $49M | 11% |
| Q4 2025 | 64 | +25% | 24.05% | +5.65 pp | $55M | +181% |
| Q3 2025 | 51 | +2.0% | 18.40% | +4.49 pp | $20M | +47% |
| Q2 2025 | 50 | +47% | 13.91% | 3.38 pp | $13M | +45% |
| Q1 2025 | 34 | 11% | 17.29% | +6.87 pp | $9M | +14% |
| Q4 2024 | 38 | +23% | 10.42% | +0.19 pp | $8M | +1.4% |
| Q3 2024 | 31 | — | 10.23% | — | $8M | — |
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 Q2 2026 13F filings, institutional ownership of GSI Technology, Inc. stands at 39.0%, held across 90 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of GSIT, with approximately 2,399,846 shares worth $0.02B as of Q2 2026.
Yes — 6 widely-followed marquee investors appear among the top 25 institutional holders of GSIT, including TWO SIGMA INVESTMENTS, LP, SUSQUEHANNA INTERNATIONAL GROUP, LLP, MILLENNIUM MANAGEMENT LLC, CITADEL ADVISORS LLC, RENAISSANCE TECHNOLOGIES LLC.
Our composite Smart Money Score for GSIT is 83 out of 100 (Strong Smart Money). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
37 institutions opened new positions in GSIT during Q2 2026, while 16 fully exited. 44 added to existing positions and 9 trimmed.
GSIT institutional ownership rose by 11.44 percentage points quarter-over-quarter, with a net change of +21 holders.
The top 10 institutions account for 70.9% of all reported 13F value in GSIT, and the top 25 account for 91.0%.
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