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DaveManuel.com · Institutional Ownership · Who Owns It

GSI TECHNOLOGY INC (GSIT)

Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.

92
Reporting holders
$114.4M
Reported value
36.1%
Of shares outstanding
4.9%
Calls
2.0%
Puts
+21
Holder change

Institutions report 13,790,776 shares against 38,246,573 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.

Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.

Holders

Download these holders as CSV

FilerValueShares Their book Held Change
BlackRock, Inc.$18.6M2,399,8460.00%8q+341.1%+$14.3M
VANGUARD CAPITAL MANAGEMENT LLC$10.4M1,350,3670.00%2q+5.6%+$556.1K
PRICE T ROWE ASSOCIATES INC /MD/$8.8M1,136,6930.00%2q+53.1%+$3.0M
MARSHALL WACE, LLP$8.7M1,122,7030.01%5q+75.7%+$3.7M
TWO SIGMA INVESTMENTS, LP$6.8M875,8940.00%12q+65.2%+$2.7M
GEODE CAPITAL MANAGEMENT, LLC$6.2M801,8900.00%31q+128.7%+$3.5M
Silverberg Bernstein Capital Management LLC$6.1M783,3062.32%11qHELD
SUSQUEHANNA INTERNATIONAL GROUP, LLP$5.2M
incl. $4.6M options CALL+PUT
74,1420.00%13q-84.0%-$27.1M
WELLS FARGO & COMPANY/MN$3.6M469,0320.00%2q+6.6%+$224.4K
STATE STREET CORP$3.1M406,9720.00%31q+193.1%+$2.1M
Qube Research & Technologies Ltd$2.7M351,3840.00%2q+1918.4%+$2.6M
MILLENNIUM MANAGEMENT LLC$2.6M339,6110.00%3q-21.0%-$697.3K
Connor, Clark & Lunn Investment Management Ltd.$2.4M308,5200.00%5q+165.2%+$1.5M
NORTHERN TRUST CORP$1.8M238,4810.00%31q+290.6%+$1.4M
T. Rowe Price Investment Management, Inc.$1.7M225,7670.00%newNEW
VANGUARD PORTFOLIO MANAGEMENT LLC$1.7M217,7080.00%newNEW
VANGUARD FIDUCIARY TRUST CO$1.7M214,8990.00%2q+15.9%+$228.5K
GSA CAPITAL PARTNERS LLP$1.4M178,1680.09%4q+150.1%+$826.5K
CITADEL ADVISORS LLC$1.3M
incl. $905.2K options CALL+PUT
54,7450.00%8q-71.4%-$3.3M
Potomac Capital Management, Inc.$1.3M168,1100.89%2q-51.7%-$1.4M
UBS Group AG$1.3M162,5950.00%15q-46.8%-$1.1M
RENAISSANCE TECHNOLOGIES LLC$1.1M142,9010.00%31q+81.6%+$496.3K
IMC-Chicago, LLC$1.1M
incl. $875.8K options CALL+PUT
29,5720.00%3q-53.5%-$1.3M
JANE STREET GROUP, LLC$1.0M
incl. $162.3K options CALL
113,7350.00%5q-66.9%-$2.1M
Trexquant Investment LP$962.4K124,4970.01%newNEW
XTX Topco Ltd$847.7K109,6680.01%2q+839.3%+$757.5K
PEAK6 LLC$779.2K CALLoptions only0.00%newOPTIONS
OSAIC HOLDINGS, INC.$776.8K100,4950.00%13q-0.8%-$6.2K
CHARLES SCHWAB INVESTMENT MANAGEMENT INC$735.9K95,2020.00%2q+428.8%+$596.7K
MORGAN STANLEY$698.2K90,3200.00%13q+5.2%+$34.3K
COMMONWEALTH EQUITY SERVICES, LLC$641.9K83,0340.00%31q-10.3%-$73.4K
Bank of New York Mellon Corp$537.9K69,5840.00%newNEW
GROUP ONE TRADING LLC$528.1K
incl. $467.7K options CALL+PUT
7,8180.00%11qHELD
BANK OF AMERICA CORP /DE/$448.5K58,0160.00%12q-40.6%-$306.6K
Squarepoint Ops LLC$430.2K55,6590.00%5q-58.9%-$615.6K
BRIDGEWAY CAPITAL MANAGEMENT, LLC$421.3K54,5000.01%31qHELD
DIMENSIONAL FUND ADVISORS LP$393.0K50,8470.00%31qHELD
GOLDMAN SACHS GROUP INC$370.2K47,8850.00%5q-69.7%-$851.5K
HRT FINANCIAL LP$355.0K
incl. $355.0K options OPT
46,0000.00%newNEW
Nuveen, LLC$324.6K41,9920.00%newNEW
RHUMBLINE ADVISERS$270.9K35,0520.00%newNEW
CANADA PENSION PLAN INVESTMENT BOARD$257.4K33,3000.00%3qHELD
JB CAPITAL PARTNERS LP$255.1K33,0000.04%22qHELD
DEUTSCHE BANK AG\$243.1K31,4500.00%newNEW
LPL Financial LLC$241.5K31,2460.00%2q+11.8%+$25.5K
ESSEX INVESTMENT MANAGEMENT CO LLC$235.1K30,4100.03%6qHELD
Invesco Ltd.$214.3K27,7280.00%newNEW
FOX RUN MANAGEMENT, L.L.C.$198.9K25,7310.03%newNEW
JPMORGAN CHASE & CO$183.5K26,7850.00%13q+92262.1%+$183.3K
HB Wealth Management, LLC$154.6K20,0000.00%newNEW
AMERICAN CENTURY COMPANIES INC$153.5K19,8600.00%newNEW
ALGERT GLOBAL LLC$153.1K19,8100.00%newNEW
MetLife Investment Management, LLC$147.7K19,1030.00%newNEW
CITIGROUP INC$145.7K18,8520.00%4q+321.9%+$111.2K
ALLIANCEBERNSTEIN L.P.$133.6K26,0000.00%newNEW
Vanguard Personalized Indexing Management, LLC$123.1K15,9240.00%5q+1.3%+$1.5K
STRS OHIO$116.0K15,0000.00%newNEW
NewEdge Advisors, LLC$113.9K14,7400.00%4q+7.3%+$7.7K
NEW YORK STATE COMMON RETIREMENT FUND$112.9K14,6000.00%newNEW
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.$112.7K14,5780.00%newNEW
SIMPLEX TRADING, LLC$105.1K CALL+PUToptions only0.00%13qOPTIONS
BARCLAYS PLC$97.7K12,6360.00%3q-49.9%-$97.1K
Susquehanna Portfolio Strategies, LLC$97.4K12,6000.00%4qHELD
ProShare Advisors LLC$93.2K12,0580.00%newNEW
Allworth Financial LP$85.8K11,0980.00%7q-4.3%-$3.9K
Vanguard Global Advisers, LLC$78.4K10,1360.00%2q-27.8%-$30.2K
Bay Colony Advisory Group, Inc d/b/a Bay Colony Advisors$77.3K10,0000.01%newNEW
Police & Firemen's Retirement System of New Jersey$72.2K9,3370.00%newNEW
Pilgrim Partners Asia Pte Ltd$42.5K5,5000.02%newNEW
BNP PARIBAS FINANCIAL MARKETS$40.4K5,2300.00%newNEW
Legal & General Group Plc$23.7K3,0670.00%newNEW
State of Wyoming$22.9K2,9590.00%newNEW
JONES FINANCIAL COMPANIES LLLP$22.6K3,2970.00%6q-19.6%-$5.5K
Ameritas Investment Partners, Inc.$22.2K2,8730.00%newNEW
ROYAL BANK OF CANADA$22.0K2,8680.00%4q+36.2%+$5.8K
Russell Investments Group, Ltd.$19.6K2,5310.00%newNEW
Tower Research Capital LLC (TRC)$14.4K1,8650.00%3q+46.9%+$4.6K
Elequin Capital, LP$11.5K1,4940.00%newNEW
SBI Securities Co., Ltd.$9.3K1,2040.00%5q+3154.1%+$9.0K
Wilmington Savings Fund Society, FSB$7.7K1,0000.00%newNEW
City State Bank$5.4K7000.00%newNEW
Steward Partners Investment Advisory, LLC$3.9K5000.00%5qHELD
CoreCap Advisors, LLC$3.9K5000.00%3qHELD
FMR LLC$3.5K4540.00%3q+269.1%+$2.6K
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM$3.4K4360.00%newNEW
SUMMIT SECURITIES GROUP LLC$1.6K2100.00%newNEW
Sterling Capital Management LLC$1.3K1670.00%newNEW
SIMS INVESTMENT MANAGEMENT, LLC$7731000.00%newNEW
Rialto Wealth Management, LLC$650840.00%newNEW
EverSource Wealth Advisors, LLC$595770.00%2qHELD
HUNTINGTON NATIONAL BANK$810.00%3qHELD
Avion Wealth$0670.00%newNEW

What the company announced

Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.

FiledEvent dateWhatSource
2026-08-212026-08-18Material agreement enteredfiling

What the insiders did

Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.

Officers and directors

DateInsiderRoleSideSharesValue
2026-05-14Schirle DouglasCFOSold40,000$452.9K
2026-06-01CHUANG PATRICK TSenior VP, Memory DesignSold40,000$452.6K
2026-06-02CHUANG PATRICK TSenior VP, Memory DesignSold40,000$439.1K
2026-05-22Wu Bor-TayVP, Taiwan OperationsSold40,000$437.4K ×2
2026-05-12CHUANG PATRICK TSenior VP, Memory DesignSold40,000$427.1K
2026-05-26Wu Ping TakVP, U.S. OperationsSold30,000$330.4K
2026-05-21Lasserre DidierVP, SalesSold30,000$279.2K
2026-05-13Akerib AvidanVP, Associative ComputingSold19,653$225.3K
2026-06-01Wu Bor-TayVP, Taiwan OperationsSold20,000$218.7K
2026-05-12Wu Ping TakVP, U.S. OperationsSold11,763$127.0K

Ten percent owners and entities

Usually an institution that crossed a reporting threshold, or a company taking a strategic stake, rather than an individual with a view.

DateInsiderRoleSideSharesValue
2026-05-11Shu Lee-LeanPres., CEO and ChairmanSold143,062$1.6M ×3
2026-05-13Shu Lee-LeanPres., CEO and ChairmanSold10,313$129.0K

Quarter by quarter

Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.

QuarterHoldersValue SharesNewAdded TrimmedOptions
Q3 202616$4.6M850,2926230.0%
Q2 202692$114.4M13,790,7763926167.2%
Q1 202671$54.7M9,863,7931721197.4%
Q4 202564$57.8M8,395,3712625109.8%
Q3 202553$21.5M5,487,9641220105.9%
Q2 202551$14.0M4,145,828211260.4%
Q1 202536$6.5M3,087,90551073.2%
Q4 202437$8.5M2,744,06259101.8%
Q3 202431$8.3M2,626,4955593.0%
Q2 202432$7.2M2,680,74339101.3%
Q1 202444$10.5M3,011,4421610102.9%
Q4 202337$11.3M4,244,46388110.9%
Q3 202338$14.1M5,099,01083121.7%
Q2 202341$33.8M5,934,13727782.8%
Q1 202324$8.7M5,098,3291740.0%
Q4 202224$8.9M5,149,3203580.0%
Q3 202226$15.3M5,366,1851480.0%
Q2 202230$18.9M5,453,8741540.2%
Q1 202233$21.2M5,531,2294680.2%
Q4 202136$26.5M5,706,94271190.4%
Q3 202141$31.5M5,969,27526150.0%
Q2 202155$37.5M6,665,5171314220.0%
Q1 202158$439.5M65,687,9381014190.0%
Q4 202052$59.1M7,956,879615170.0%
Q3 202053$44.3M7,853,348513200.0%
Q2 202053$56.8M8,012,948522120.0%
Q1 202050$50.5M7,253,395415160.0%
Q4 201949$51.5M7,262,001118180.0%
Q3 201957$62.4M7,120,982726100.0%
Q2 201953$63.2M7,371,7881615110.0%
Q1 201941$501.6M64,550,383111080.0%
Q4 201832$329.6M64,129,6560000.0%