One Stop Systems Ownership | Who Owns One Stop Systems?


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One Stop Systems Ownership Summary


One Stop Systems is owned by 43.16% institutional investors, 16.68% insiders, and 40.16% retail investors. Vanguard group is the largest institutional shareholder, holding 4.80% of OSS shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.80% of its assets in One Stop Systems shares.

OSS Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockOne Stop Systems43.16%16.68%40.16%
SectorTechnology Stocks 78.07%14.90%7.03%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Vanguard group1.05M4.80%$7.57M
Jane street group874.56K3.90%$6.62M
Blackrock funding, inc. /de597.30K2.67%$4.52M
Bard associates540.67K2.41%$4.09M
Morgan stanley431.92K1.93%$3.27M
Ubs group407.01K1.82%$3.08M
Millennium management400.73K1.79%$3.03M
Citadel advisors356.68K1.59%$2.70M
Polar asset management partners292.25K1.35%$1.57M
Renaissance259.96K1.16%$1.97M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Amh equity200.00K1.33%$1.07M
Bard associates540.67K1.03%$4.09M
Penbrook management46.74K0.27%$353.82K
Eam investors135.99K0.12%$1.03M
Essex investment management35.53K0.04%$268.99K
Baker tilly wealth management20.00K0.04%$151.40K
Anfield capital management17.00K0.04%$128.69K
Lodestone wealth management6.80K0.02%$51.50K
Polar asset management partners292.25K0.02%$1.57M
Thompson siegel & walmsley96.96K0.01%$734.00K

Top Buyers

HolderShares% AssetsChange
Blackrock funding, inc. /de597.30K0.00%459.86K
Ubs group407.01K0.00%400.00K
Morgan stanley431.92K0.00%369.68K
Millennium management400.73K0.00%359.22K
Polar asset management partners292.25K0.02%292.25K

Top Sellers

HolderShares% AssetsChange
Arrowstreet capital, limited partnership---693.49K
Lynrock lake lp666.000.00%-665.25K
Pacific ridge capital partners---432.36K
Marshall wace, llp---418.98K
Herald investment management---379.06K

New Positions

HolderShares% AssetsChangeValue
Polar asset management partners292.25K0.02%292.25K$1.57M
Amh equity200.00K1.33%200.00K$1.07M
Vanguard fiduciary trust128.76K0.00%128.76K$974.71K
Mirae asset global etfs73.86K0.00%73.86K$559.16K
Jump financial61.60K0.00%61.60K$330.18K

Sold Out

HolderChange
Root financial partners-65.00
Org partners-120.00
Mai capital management-226.00
Stone house investment management-300.00
Lazard asset management-845.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Jun 30, 202612042.86%10,722,33128.67%433.79%8369.39%244.35%
Mar 31, 202638-48.65%4,558,442-50.97%201.13%24-50.00%9-47.06%
Dec 31, 202540-36.51%5,344,214-44.98%241.21%26-40.91%9-18.18%
Sep 30, 20256263.16%9,710,89757.40%445.53%43115.00%11-
Jun 30, 20254213.51%6,431,95520.85%294.79%215.00%1271.43%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Vanguard Total Stock Mkt Idx Inv693.56K2.80%-
Vanguard Morn Total Stk Mkt Idx Investor693.56K2.80%-
Vanguard MStar Total Stk Mkt Idx Invest693.56K2.78%-
iShares Russell 2000 ETF630.24K2.54%-11.23K
Vanguard US Total Market Shares ETF498.28K2.34%-
Pacific Ridge Capital Ptnrs Micro Cp Val485.55K2.31%-27.82K
Herald Ord379.06K1.80%-105.27K
Vanguard Institutional Extnd Mkt Idx Tr252.09K1.01%-5.04K
Timpani Small Cap Growth Equity225.78K0.91%225.78K
Calamos Timpani Small Cap Growth I225.78K0.91%225.78K

Recent Insider Transactions


DateNameRoleActivityValue
May 26, 2026BASSETT DAVID GEORGE-Sell$141.12K
May 26, 2026Matz Gregory W-Sell$140.16K
May 26, 2026Herbets Mitchell H-Sell$88.10K
Aug 13, 2024Manko Joseph M. Jr.-Buy$97.00K
Aug 14, 2024Manko Joseph M. Jr.-Buy$49.75K

Insider Transactions Trends


DateBuySell
2026 Q2-3
2026 Q1--
2025 Q4--
2025 Q3--
2025 Q2--

OSS Ownership FAQ


Who owns the most shares of One Stop Systems?

One Stop Systems’s largest shareholders are Vanguard group (1.05M shares, 4.80%), Jane street group (874.56K shares, 3.90%), and Blackrock funding, inc. /de (597.3K shares, 2.67%). Together, they hold 11.37% of One Stop Systems’s total shares outstanding.

Does Blackrock own One Stop Systems?

BlackRock is not among the top 10 institutional shareholders of One Stop Systems.

Who is One Stop Systems’s biggest shareholder by percentage of total assets invested?

Amh equity is One Stop Systems’s biggest shareholder by percentage of total assets invested, with 1.33% of its assets in 200K One Stop Systems shares, valued at 1.07M$.

Who is the top mutual fund holder of One Stop Systems shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of One Stop Systems shares, with 2.80% of its total shares outstanding invested in 693.56K One Stop Systems shares.

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