GSI Ownership | Who Owns GSI?

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GSI Ownership Summary

GSI is owned by 15.35% institutional investors, 15.33% insiders, and 69.32% retail investors. Vanguard group is the largest institutional shareholder, holding 3.33% of GSIT shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 2.24% of its assets in GSI shares.

GSIT Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	GSI	15.35%	15.33%	69.32%
Sector	Technology Stocks	143.99%	12.56%	-56.55%
Idea	Semiconductor Stocks List	62.65%	7.35%	30.01%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	849.17K	3.33%	$2.57M
Silverberg bernstein capital management	753.17K	2.79%	$2.77M
Dimensional fund advisors lp	353.36K	1.39%	$1.07M
Geode capital management	208.72K	0.82%	$632.58K
Marshall wace, llp	191.16K	0.71%	$642.30K
Renaissance	164.25K	0.65%	$497.68K
Arrowstreet capital, limited partnership	159.25K	0.59%	$535.08K
Bridgeway capital management	91.72K	0.36%	$277.90K
Blackrock	81.06K	0.32%	$214.81K
Acadian asset management	86.71K	0.32%	$290.00K

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Silverberg bernstein capital management	753.17K	1.68%	$2.77M
Jb capital partners lp	33.00K	0.02%	$110.88K
Xtx topco	73.14K	0.01%	$245.76K
Bridgeway capital management	91.72K	0.01%	$277.90K
Two sigma securities	13.78K	0.01%	$46.29K
Legato capital management	11.37K	0.00%	$38.19K
U.s. capital wealth advisors	16.33K	0.00%	$60.10K
Quadrature capital	26.75K	0.00%	$89.62K
Rise advisors	738.00	0.00%	$2.72K
Beacon capital management	2.00K	0.00%	$6.72K

Top Buyers

Holder	Shares	% Assets	Change
Marshall wace, llp	191.16K	0.00%	191.16K
Arrowstreet capital, limited partnership	159.25K	0.00%	159.25K
Acadian asset management	86.71K	0.00%	86.71K
Xtx topco	73.14K	0.01%	73.14K
Silverberg bernstein capital management	753.17K	1.68%	64.71K

Top Sellers

Holder	Shares	% Assets	Change
Gsa capital partners llp	-	-	-71.04K
Belvedere trading	-	-	-48.67K
Renaissance	164.25K	0.00%	-41.50K
Virtu financial	-	-	-39.66K
Wealthplan investment management	-	-	-37.60K

New Positions

Holder	Shares	% Assets	Change	Value
Marshall wace, llp	191.16K	0.00%	191.16K	$642.30K
Arrowstreet capital, limited partnership	159.25K	0.00%	159.25K	$535.08K
Acadian asset management	86.71K	0.00%	86.71K	$290.00K
Xtx topco	73.14K	0.01%	73.14K	$245.76K
Connor, clark & lunn investment management	49.15K	0.00%	49.15K	$165.13K

Sold Out

Holder	Change
Innealta capital	-32.00
Qube research	-100.00
Newedge advisors	-150.00
N.e.w. advisory services	-344.00
Northwest financial advisors	-400.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Jun 30, 2025	50	28.21%	4,139,716	34.02%	15	10.50%	33	94.12%	7	-
Mar 31, 2025	39	-4.88%	3,125,233	13.67%	12	10.56%	17	-5.56%	7	-30.00%
Dec 31, 2024	18	-48.57%	1,815,227	-30.89%	7	6.70%	10	-9.09%	4	-50.00%
Sep 30, 2024	35	2.94%	2,626,466	-2.04%	10	9.07%	11	-8.33%	8	-27.27%
Jun 30, 2024	34	-29.17%	2,681,114	-10.81%	10	7.53%	12	-53.85%	11	10.00%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard US Total Market Shares ETF	574.55K	2.24%	-
Vanguard Total Stock Mkt Idx Inv	562.15K	1.93%	-12.40K
Vanguard Institutional Extnd Mkt Idx Tr	195.61K	0.67%	-58.95K
IMC US Ultra Micro Cap	143.79K	0.49%	143.79K
Fidelity Extended Market Index	105.51K	0.36%	-868.00
DFA US Micro Cap I	54.16K	0.19%	-
Dimensional US Small Cap ETF	48.90K	0.17%	3.25K
iShares Micro-Cap ETF	44.40K	0.15%	-
Fidelity Total Market Index	34.12K	0.12%	-73.00
Dimensional US Targeted Value ETF	31.37K	0.11%	-2.90K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Aug 07, 2025	Bradley Jack A.	-	Sell	$22.77K
Aug 06, 2025	Bradley Jack A.	-	Sell	$3.85K
Aug 05, 2025	Akerib Avidan	VP, Associative Computing	Sell	$38.95K
Aug 14, 2024	NELSON BARBARA H	-	Sell	$21.67K
Aug 15, 2024	NELSON BARBARA H	-	Sell	$16.64K

Insider Transactions Trends

Date	Buy	Sell
2025 Q3	-	3
2025 Q2	-	-
2024 Q4	-	-
2024 Q3	-	5
2024 Q2	-	2

GSIT Ownership FAQ

Who owns the most shares of GSI?

GSI’s largest shareholders are Vanguard group (849.17K shares, 3.33%), Silverberg bernstein capital management (753.17K shares, 2.79%), and Dimensional fund advisors lp (353.36K shares, 1.39%). Together, they hold 7.51% of GSI’s total shares outstanding.

Does Blackrock own GSI?

Yes, BlackRock owns 0.32% of GSI, totaling 81.06K shares as of Jun 2024. This represents 0% of BlackRock's total assets, with a market value of 214.81K$. In the last quarter, BlackRock increased its holdings by 4.26K shares, a 5.55% change.

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 1.68% of its assets in 753.17K GSI shares, valued at 2.77M$.

Who is the top mutual fund holder of GSI shares?

Vanguard US Total Market Shares ETF is the top mutual fund holder of GSI shares, with 2.24% of its total shares outstanding invested in 574.55K GSI shares.

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