New Positions
24 managers initiated
Top five by reported value
GSI Technology Inc NASDAQ NMS - GLOBAL MARKET:GSIT
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-12-31 · prior 2025-09-30.
24 new24 added16 reduced11 exited
Total Institutional Holders
64
as of 2025-12-31
Top Holder
VANGUARD GROUP INC
$9.0M
Largest QoQ Increase
SUSQUEHANNA INTERNATIONAL GROUP, LLP
+721,702 sh
Largest QoQ Decrease
RENAISSANCE TECHNOLOGIES LLC
-269,608 sh
New Positions(24)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| Concentric Capital Strategies, LP | 340,664 | +340,664 | $2.1M | +$2.1M | — |
| DISCOVERY CAPITAL MANAGEMENT, LLC / CT | 183,600 | +183,600 | $1.1M | +$1.1M | — |
| 683 Capital Management, LLC | 118,835 | +118,835 | $738.0K | +$738.0K | — |
| Toroso Investments, LLC | 91,607 | +91,607 | $568.9K | +$568.9K | — |
| IMC-Chicago, LLC | 66,472 | +66,472 | $412.8K | +$412.8K | — |
| Centiva Capital, LP | 63,991 | +63,991 | $397.4K | +$397.4K | — |
| PEAK6 LLC | 57,600 | +57,600 | $357.7K | +$357.7K | — |
| Graham Capital Management, L.P. | 55,886 | +55,886 | $347.1K | +$347.1K | — |
| MILLENNIUM MANAGEMENT LLC | 45,843 | +45,843 | $284.7K | +$284.7K | — |
| CANADA PENSION PLAN INVESTMENT BOARD | 33,000 | +33,000 | $204.9K | +$204.9K | — |
| BARCLAYS PLC | 27,367 | +27,367 | $169.9K | +$169.9K | — |
| SYMMETRY PEAK MANAGEMENT LLC | 22,500 | +22,500 | $139.7K | +$139.7K | — |
| OMERS ADMINISTRATION Corp | 20,500 | +20,500 | $127.3K | +$127.3K | — |
| Lighthouse Investment Partners, LLC | 17,280 | +17,280 | $107.3K | +$107.3K | — |
| Schonfeld Strategic Advisors LLC | 13,102 | +13,102 | $81.4K | +$81.4K | — |
| CIBC Private Wealth Group, LLC | 5,000 | +5,000 | $31.1K | +$31.1K | — |
| Tower Research Capital LLC (TRC) | 4,591 | +4,591 | $28.5K | +$28.5K | — |
| Allworth Financial LP | 1,598 | +1,598 | $9.9K | +$9.9K | — |
| MILLER WEALTH ADVISORS, LLC | 600 | +600 | $3.7K | +$3.7K | — |
| CoreCap Advisors, LLC | 500 | +500 | $3.1K | +$3.1K | — |
| FMR LLC | 231 | +231 | $1.4K | +$1.4K | — |
| Virtu Financial LLC | 12,188 | +12,188 | $76 | +$76 | — |
| FNY Investment Advisers, LLC | 4,000 | +4,000 | $24 | +$24 | — |
| HUNTINGTON NATIONAL BANK | 1 | +1 | $6 | +$6 | — |
Added To(24)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| VANGUARD GROUP INC | 1,453,236 | +515,525 | $9.0M | +$5.6M | 55.0% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 934,053 | +721,702 | $5.8M | +$5.0M | 339.9% |
| MARSHALL WACE, LLP | 727,077 | +385,185 | $4.5M | +$3.3M | 112.7% |
| BlackRock, Inc. | 506,620 | +373,108 | $3.1M | +$2.7M | 279.4% |
| Silverberg Bernstein Capital Management LLC | 774,506 | +21,332 | $4.8M | +$2.0M | 2.8% |
| TWO SIGMA INVESTMENTS, LP | 500,364 | +109,106 | $3.1M | +$1.7M | 27.9% |
| CITADEL ADVISORS LLC | 354,755 | +175,664 | $2.2M | +$1.5M | 98.1% |
| UBS Group AG | 320,672 | +153,000 | $2.0M | +$1.4M | 91.2% |
| JANE STREET GROUP, LLC | 221,094 | +161,380 | $1.4M | +$1.2M | 270.3% |
| GEODE CAPITAL MANAGEMENT, LLC | 325,567 | +83,427 | $2.0M | +$1.1M | 34.5% |
| GOLDMAN SACHS GROUP INC | 189,579 | +92,185 | $1.2M | +$818.9K | 94.7% |
| MORGAN STANLEY | 96,731 | +92,830 | $600.7K | +$586.3K | 2379.6% |
| COMMONWEALTH EQUITY SERVICES, LLC | 88,934 | +33,080 | $552.3K | +$552.1K | 59.2% |
| SIMPLEX TRADING, LLC | 87,314 | +24,975 | $542.2K | +$542.0K | 40.1% |
| ADVISOR GROUP HOLDINGS, INC. | 87,976 | +74,809 | $546.3K | +$500.5K | 568.1% |
| STATE STREET CORP | 106,142 | +25,700 | $659.1K | +$363.1K | 31.9% |
| GROUP ONE TRADING, L.P. | 60,255 | +43,005 | $374.2K | +$310.7K | 249.3% |
| Connor, Clark & Lunn Investment Management Ltd. | 86,431 | +17,752 | $536.7K | +$284.0K | 25.8% |
| NORTHERN TRUST CORP | 61,048 | +19,845 | $379.1K | +$227.5K | 48.2% |
| CITIGROUP INC | 21,895 | +21,618 | $136.0K | +$134.9K | 7804.3% |
| BANK OF AMERICA CORP /DE/ | 15,369 | +1,851 | $95.4K | +$45.7K | 13.7% |
| Vanguard Personalized Indexing Management, LLC | 16,748 | +104 | $104.0K | +$42.8K | 0.6% |
| Royal Bank of Canada | 3,127 | +1,200 | $20.0K | +$13.0K | 62.3% |
| GSA CAPITAL PARTNERS LLP | 37,879 | +13,971 | $235 | +$147 | 58.4% |
Reduced(16)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| DIMENSIONAL FUND ADVISORS LP | 50,847 | -250,020 | $315.8K | -$791.8K | -83.1% |
| RENAISSANCE TECHNOLOGIES LLC | 116,301 | -269,608 | $722.2K | -$697.9K | -69.9% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 185,532 | -49,985 | $1.2M | +$285.5K | -21.2% |
| JB CAPITAL PARTNERS LP | 33,000 | 0 | $204.9K | +$83.5K | 0.0% |
| Squarepoint Ops LLC | 116,807 | -58,578 | $725.4K | +$80.0K | -33.4% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 24,500 | 0 | $152.1K | +$62.0K | 0.0% |
| Jump Financial, LLC | 22,950 | -5,043 | $142.5K | +$39.5K | -18.0% |
| NewEdge Advisors, LLC | 16,332 | -2,058 | $101.4K | +$33.7K | -11.2% |
| Susquehanna Portfolio Strategies, LLC | 12,600 | 0 | $78.2K | +$31.9K | 0.0% |
| JPMORGAN CHASE & CO | 29 | -4,064 | $180 | -$14.9K | -99.3% |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 30,454 | -17,883 | $189.1K | +$11.2K | -37.0% |
| JONES FINANCIAL COMPANIES LLLP | 600 | -1,925 | $3.7K | -$6.0K | -76.2% |
| Steward Partners Investment Advisory, LLC | 500 | 0 | $3.1K | +$1.3K | 0.0% |
| ACADIAN ASSET MANAGEMENT LLC | 6,340 | -196,184 | $39 | -$705 | -96.9% |
| Farther Finance Advisors, LLC | 200 | 0 | $1.2K | +$506 | 0.0% |
| SBI Securities Co., Ltd. | 51 | 0 | $317 | +$129 | 0.0% |
Sold Out(11)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| XTX Topco Ltd | 0 | -113,385 | $0 | -$417.3K | — |
| TWO SIGMA ADVISERS, LP | 0 | -46,500 | $0 | -$171.1K | — |
| WOLVERINE TRADING, LLC | 0 | -21,984 | $0 | -$81.8K | — |
| Dynamic Technology Lab Private Ltd | 0 | -18,678 | $0 | -$69.0K | — |
| Cubist Systematic Strategies, LLC | 0 | -17,866 | $0 | -$65.7K | — |
| U.S. Capital Wealth Advisors, LLC | 0 | -16,333 | $0 | -$60.1K | — |
| PRELUDE CAPITAL MANAGEMENT, LLC | 0 | -14,200 | $0 | -$52.3K | — |
| R Squared Ltd | 0 | -10,421 | $0 | -$38.3K | — |
| WELLS FARGO & COMPANY/MN | 0 | -3,097 | $0 | -$11.4K | — |
| Rise Advisors, LLC | 0 | -738 | $0 | -$2.7K | — |
| ALGERT GLOBAL LLC | 0 | -23,970 | $0 | -$88 | — |
Top Holders by reported value
Ranked by the dollar value reported on the latest Form 13F. Share counts reflect long positions as of 2025-12-31.
| Manager | Shares | $ Value | Δ Shares | QoQ % |
|---|---|---|---|---|
| VANGUARD GROUP INC | 1,453,236 | $9.0M | +515,525 | 55.0% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 934,053 | $5.8M | +721,702 | 339.9% |
| Silverberg Bernstein Capital Management LLC | 774,506 | $4.8M | +21,332 | 2.8% |
| MARSHALL WACE, LLP | 727,077 | $4.5M | +385,185 | 112.7% |
| BlackRock, Inc. | 506,620 | $3.1M | +373,108 | 279.4% |
| TWO SIGMA INVESTMENTS, LP | 500,364 | $3.1M | +109,106 | 27.9% |
| CITADEL ADVISORS LLC | 354,755 | $2.2M | +175,664 | 98.1% |
| Concentric Capital Strategies, LP | 340,664 | $2.1M | +340,664 | — |
| GEODE CAPITAL MANAGEMENT, LLC | 325,567 | $2.0M | +83,427 | 34.5% |
| UBS Group AG | 320,672 | $2.0M | +153,000 | 91.2% |
| JANE STREET GROUP, LLC | 221,094 | $1.4M | +161,380 | 270.3% |
| GOLDMAN SACHS GROUP INC | 189,579 | $1.2M | +92,185 | 94.7% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 185,532 | $1.2M | -49,985 | -21.2% |
| DISCOVERY CAPITAL MANAGEMENT, LLC / CT | 183,600 | $1.1M | +183,600 | — |
| 683 Capital Management, LLC | 118,835 | $738.0K | +118,835 | — |
| Squarepoint Ops LLC | 116,807 | $725.4K | -58,578 | -33.4% |
| RENAISSANCE TECHNOLOGIES LLC | 116,301 | $722.2K | -269,608 | -69.9% |
| STATE STREET CORP | 106,142 | $659.1K | +25,700 | 31.9% |
| MORGAN STANLEY | 96,731 | $600.7K | +92,830 | 2379.6% |
| Toroso Investments, LLC | 91,607 | $568.9K | +91,607 | — |
New & Closed Positions this quarter
Closed Positions
11 managers exited
Top five by prior-quarter value
- XTX Topco Ltd$417.3K
- TWO SIGMA ADVISERS, LP$171.1K
- WOLVERINE TRADING, LLC$81.8K
- Dynamic Technology Lab Private Ltd$69.0K
- Cubist Systematic Strategies, LLC$65.7K
Methodology
Form 13F is the SEC's quarterly disclosure for institutional investment managers exercising discretion over $100 million or more in qualifying U.S. equity securities. Managers must file within 45 days of each calendar quarter end, which is why holdings shown here reflect a snapshot at the period date — not real-time positioning.
Quarter-over-quarter deltas compare each manager's most recently reported share count for GSIT against its prior-quarter count. New positions are entries where the prior count was zero; closed positions are entries where the current count is zero. Amendments (13F-HR/A) replace prior filings for the same period.
Source: SEC EDGAR Form 13F (XML information tables). Dollar values are as reported by the manager and may use mid-quarter pricing conventions. CUSIP-to-ticker resolution is best-effort.