GSI Ownership | Who Owns GSI?


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GSI Ownership Summary


GSI is owned by 43.47% institutional investors, 7.79% insiders, and 48.75% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 7.54% of GSIT shares. Vanguard Morn Total Stk Mkt Idx Investor is the top mutual fund, with 2.55% of its assets in GSI shares.

GSIT Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockGSI43.47%7.79%48.75%
SectorTechnology Stocks 53.60%14.91%31.49%
IdeaSemiconductor Stocks List 73.13%6.84%20.03%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock funding, inc. /de2.40M7.54%$18.55M
Vanguard capital management1.35M4.24%$10.44M
Vanguard group1.45M4.21%$9.02M
Price t rowe associates inc /md/1.14M3.57%$8.79M
Marshall wace, llp1.12M3.53%$8.68M
Two sigma investments, lp875.89K2.75%$6.77M
Geode capital management801.89K2.52%$6.20M
Silverberg bernstein capital management783.31K2.46%$6.05M
Wells fargo & company/mn469.03K1.47%$3.63M
State street406.97K1.28%$3.15M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Silverberg bernstein capital management783.31K2.32%$6.05M
Potomac capital management168.11K0.89%$1.30M
Gsa capital partners llp178.17K0.09%$1.38M
Jb capital partners lp33.00K0.04%$255.09K
Fox run management25.73K0.03%$198.90K
Essex investment management30.41K0.03%$235.07K
Pilgrim partners asia pte5.50K0.02%$42.52K
Xtx topco109.67K0.01%$847.73K
Bay colony advisory group, inc d/b/a bay colony advisors10.00K0.01%$77.30K
Bridgeway capital management54.50K0.01%$421.29K

Top Buyers

HolderShares% AssetsChange
Blackrock funding, inc. /de2.40M0.00%1.86M
Vanguard group1.45M0.00%515.52K
Marshall wace, llp1.12M0.01%483.68K
Geode capital management801.89K0.00%451.20K
Price t rowe associates inc /md/1.14M0.00%394.02K

Top Sellers

HolderShares% AssetsChange
Susquehanna group, llp74.14K--389.89K
Concentric capital strategies, lp---340.66K
Jane street group113.73K0.00%-229.79K
Discovery capital management, llc / ct---183.60K
Potomac capital management168.11K0.89%-180.29K

New Positions

HolderShares% AssetsChangeValue
T. rowe price investment management225.77K0.00%225.77K$1.75M
Trexquant investment lp124.50K0.01%124.50K$962.36K
Sixth street partners management company95.20K0.00%95.20K$735.91K
Bank of new york mellon69.58K0.00%69.58K$537.88K
Nuveen41.99K0.00%41.99K$324.60K

Sold Out

HolderChange
Southstate-28.00
Innealta capital-32.00
Farther finance advisors-200.00
Miller wealth advisors-300.00
Mai capital management-300.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Jun 30, 20269425.33%13,839,47540.31%434.53%6350.00%17-5.56%
Mar 31, 202617-75.00%3,467,777-58.69%101.70%9-80.85%4-63.64%
Dec 31, 202536-36.84%5,688,8433.74%163.99%27-22.86%5-16.67%
Sep 30, 202530-36.17%4,090,2005.66%157.36%19-38.71%3-50.00%
Jun 30, 20255028.21%4,139,71634.02%1510.50%3394.12%7-

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Vanguard Morn Total Stk Mkt Idx Investor979.77K2.55%-
Vanguard Total Stock Mkt Idx Inv979.77K2.55%-
iShares Russell 2000 ETF876.91K2.29%-15.55K
Vanguard US Total Market Shares ETF574.55K2.24%-
T. Rowe Price New Horizons715.73K1.87%256.10K
US Small-Cap Growth II Equity Comp715.73K1.87%255.89K
Vanguard Institutional Extnd Mkt Idx Tr335.88K0.88%-
T. Rowe Price New Horizons Tr-A319.04K0.83%107.18K
iShares Russell 2000 Growth ETF259.37K0.68%-2.37K
Russell 2000 Equity Index Fund B230.14K0.60%230.14K

Recent Insider Transactions


DateNameRoleActivityValue
May 26, 2026Wu Ping Tak VP, U.S. OperationsSell$330.40K
May 22, 2026Wu Bor-Tay VP, Taiwan OperationsBuy$218.68K
May 22, 2026Wu Bor-Tay VP, Taiwan OperationsSell$218.68K
May 21, 2026Lasserre Didier VP, SalesSell$279.18K
May 14, 2026Schirle Douglas CFOSell$452.93K

Insider Transactions Trends


DateBuySell
2026 Q3--
2026 Q2-13
2026 Q1-6
2025 Q414
2025 Q3-3

GSIT Ownership FAQ


Who owns the most shares of GSI?

GSI’s largest shareholders are Blackrock funding, inc. /de (2.4M shares, 7.54%), Vanguard capital management (1.35M shares, 4.24%), and Vanguard group (1.45M shares, 4.21%). Together, they hold 15.99% of GSI’s total shares outstanding.

Does Blackrock own GSI?

BlackRock is not among the top 10 institutional shareholders of GSI.

Who is GSI’s biggest shareholder by percentage of total assets invested?

Silverberg bernstein capital management is GSI’s biggest shareholder by percentage of total assets invested, with 2.32% of its assets in 783.31K GSI shares, valued at 6.05M$.

Who is the top mutual fund holder of GSI shares?

Vanguard Morn Total Stk Mkt Idx Investor is the top mutual fund holder of GSI shares, with 2.55% of its total shares outstanding invested in 979.77K GSI shares.

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