GSI Ownership | Who Owns GSI?

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GSI Ownership Summary

GSI is owned by 15.17% institutional investors, 12.66% insiders, and 72.17% retail investors. Vanguard group is the largest institutional shareholder, holding 3.48% 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	15.17%	12.66%	72.17%
Sector	Technology Stocks	42.16%	12.50%	45.34%
Idea	Semiconductor Stocks List	45.37%	7.21%	47.41%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	937.71K	3.48%	$3.45M
Silverberg bernstein capital management	753.17K	2.79%	$2.77M
Two sigma investments, lp	391.26K	1.45%	$1.44M
Renaissance	385.91K	1.43%	$1.42M
Marshall wace, llp	341.89K	1.27%	$1.26M
Dimensional fund advisors lp	300.87K	1.12%	$1.11M
Geode capital management	242.14K	0.90%	$891.24K
Arrowstreet capital, limited partnership	235.52K	0.87%	$866.70K
Acadian asset management	202.52K	0.75%	$744.00K
Squarepoint ops	175.38K	0.65%	$645.42K

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Silverberg bernstein capital management	753.17K	1.68%	$2.77M
Essex investment management	48.34K	0.03%	$177.88K
Xtx topco	113.39K	0.02%	$417.26K
Jb capital partners lp	33.00K	0.02%	$121.44K
R squared	10.42K	0.02%	$38.35K
Dynamic technology lab private	18.68K	0.01%	$69.00M
Gsa capital partners llp	23.91K	0.01%	$88.00K
Legato capital management	11.37K	0.00%	$41.82K
Prelude capital management	14.20K	0.00%	$52.26K
Two sigma investments, lp	391.26K	0.00%	$1.44M

Top Buyers

Holder	Shares	% Assets	Change
Renaissance	385.91K	0.00%	265.80K
Ubs group	167.67K	0.00%	165.94K
Squarepoint ops	175.38K	0.00%	154.13K
Marshall wace, llp	341.89K	0.00%	150.73K
Two sigma investments, lp	391.26K	0.00%	124.36K

Top Sellers

Holder	Shares	% Assets	Change
Dimensional fund advisors lp	300.87K	0.00%	-61.92K
Belvedere trading	-	-	-48.67K
Goldman sachs group	97.39K	-	-42.93K
Jane street group	59.71K	-	-42.09K
Virtu financial	-	-	-39.66K

New Positions

Holder	Shares	% Assets	Change	Value
Jump financial	27.99K	0.00%	27.99K	$103.01K
Algert global	23.97K	0.00%	23.97K	$88.00K
Gsa capital partners llp	23.91K	0.01%	23.91K	$88.00K
Dynamic technology lab private	18.68K	0.01%	18.68K	$69.00M
Newedge advisors	18.39K	0.00%	18.39K	$67.67K

Sold Out

Holder	Change
Southstate	-28.00
Innealta capital	-32.00
Qube research	-100.00
Bnp paribas arbitrage, snc	-204.00
N.e.w. advisory services	-344.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Sep 30, 2025	30	-36.17%	4,090,200	5.66%	15	7.36%	19	-38.71%	3	-50.00%
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%

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
Nov 06, 2025	CHUANG PATRICK T	Senior VP, Memory Design	Sell	$173.28K
Nov 05, 2025	Akerib Avidan	VP, Associative Computing	Sell	$467.51K
Nov 04, 2025	Akerib Avidan	VP, Associative Computing	Sell	$1.22M
Nov 04, 2025	CHUANG PATRICK T	Senior VP, Memory Design	Buy	$361.60K
Nov 03, 2025	Cholawsky Elizabeth	-	Buy	$80.49K

Insider Transactions Trends

Date	Buy	Sell
2025 Q4	1	4
2025 Q3	-	3
2025 Q2	-	-
2024 Q4	-	-
2024 Q3	-	5

GSIT Ownership FAQ

Who owns the most shares of GSI?

GSI’s largest shareholders are Vanguard group (937.71K shares, 3.48%), Silverberg bernstein capital management (753.17K shares, 2.79%), and Two sigma investments, lp (391.26K shares, 1.45%). Together, they hold 7.72% 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 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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