One Stop Systems OSS Institutional Ownership

NASDAQ OSS

$11.03 -0.37 (-3.25%)

As of: Aug 24, 2026 · 3:59 PM EDT

Institutions by Trading Activity

76 Institutions

Increased 48 63.2%

Unchanged 6 7.9%

Reduced 22 28.9%

Ownership Statistics

13F · as of 31 Mar, 2026

Institutional Ownership

33.75%

▼-8.25 pp QoQ

Shares Held by Institutions

8.33Mn

of 24.68Mn outstanding

▲+39.13% QoQ

Shares Outstanding

24.68Mn

16.35Mn held outside 13F filers

Institutional Investors

filed 13F for Mar 2026

▲+8 vs prior quarter

Net Shares Added (QoQ)

+2.34Mn

accumulated since last quarter

Value of Holdings

$105.63Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 31 Mar, 2026

One Stop Systems, Inc. (NASDAQ:OSS) has 76 institutional investors that have filed 13F reports for the period ending March 2026.

These investors held 33.8% of outstanding shares in March 2026, down from 42.0% in December 2025.
Their total shares held in OSS increased 39.13% from the prior quarter, while the number of investors in One Stop Systems increased 130.3% year over year.
Activity in OSS broke down as 48 buyers, 22 sellers, and 6 unchanged among 76 total holders.
Altogether, these fund groups held 8.33Mn shares in OSS by March 2026, up by 2.34Mn shares quarter on quarter, and up 2.94Mn shares year over year.
VANGUARD CAPITAL MANAGEMENT LLC leads ownership in OSS with 959.59K shares as of March 31, 2026, equal to 3.89% of outstanding shares.
Leading buyers of One Stop Systems shares for the quarter ending March 2026 were VANGUARD CAPITAL MANAGEMENT LLC (959.59K), BlackRock, Inc. (459.86K), UBS Group AG (400.0K), Morgan Stanley (369.68K), MILLENNIUM MANAGEMENT LLC (359.22K).
The largest sellers of One Stop Systems for the quarter ending March 2026 were Lynrock Lake LP (665.25K), BARD ASSOCIATES INC (310.19K), BNP PARIBAS FINANCIAL MARKETS (226.34K), Goldman Sachs Group Inc (180.46K), RENAISSANCE TECHNOLOGIES LLC (115.74K).
According to Business Quant data, leading holders of OSS for March 2026 are VANGUARD CAPITAL MANAGEMENT LLC (959.59K), JANE STREET GROUP, LLC (874.56K), BlackRock, Inc. (597.3K), BARD ASSOCIATES INC (540.67K), Morgan Stanley (431.92K), MARSHALL WACE, LLP (418.98K), UBS Group AG (407.01K), MILLENNIUM MANAGEMENT LLC (400.73K), CITADEL ADVISORS LLC (356.68K), RENAISSANCE TECHNOLOGIES LLC (259.96K).

Form 13F Holdings

76 Institutional Holders

Report period 31 Mar, 2026

Total shares held 8.33Mn

Of outstanding 33.75%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	959,588	3.89%	▲959,588	0.00%	$7.26Mn
2	JANE STREET GROUP, LLC	0001595888	874,558	3.54%	▲270,753	+44.84%	$6.62Mn
3	BlackRock, Inc.	0002012383	597,303	2.42%	▲459,859	+334.58%	$4.52Mn
4	BARD ASSOCIATES INC	0001105907	540,666	2.19%	▼310,192	-36.46%	$4.09Mn
5	Morgan Stanley	0000895421	431,919	1.75%	▲369,679	+593.96%	$3.27Mn
6	MARSHALL WACE, LLP	0001318757	418,978	1.70%	▲145,043	+52.95%	$3.17Mn
7	UBS Group AG	0001610520	407,014	1.65%	▲400,002	+5,704.54%	$3.08Mn
8	MILLENNIUM MANAGEMENT LLC	0001273087	400,729	1.62%	▲359,219	+865.38%	$3.03Mn
9	CITADEL ADVISORS LLC	0001423053	356,676	1.45%	▲211,000	+144.84%	$2.70Mn
10	RENAISSANCE TECHNOLOGIES LLC	0001037389	259,960	1.05%	▼115,741	-30.81%	$1.97Mn
11	DnB Asset Management AS	0001456670	252,733	1.02%	▲99,832	+65.29%	$1.91Mn
12	GEODE CAPITAL MANAGEMENT, LLC	0001214717	252,453	1.02%	▲13,958	+5.85%	$1.91Mn
13	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0001446194	236,299	0.96%	▼22,773	-8.79%	$1.79Mn
14	Trexquant Investment LP	0001633445	217,829	0.88%	▼38,981	-15.18%	$1.65Mn
15	Sei Investments Co	0000350894	166,632	0.68%	▲66,784	+66.89%	$1.26Mn
16	Cambridge Investment Research Advisors, Inc.	0001419186	145,624	0.59%	▲32,586	+28.83%	$1.10K
17	Informed Momentum Co LLC	0001510989	135,989	0.55%	▼26,984	-16.56%	$1.03Mn
18	VANGUARD FIDUCIARY TRUST CO	0000933478	128,759	0.52%	▲128,759	0.00%	$974.71K
19	State Street Corp	0000093751	101,676	0.41%	▲17,100	+20.22%	$769.69K
20	THOMPSON SIEGEL & WALMSLEY LLC	0001008322	96,963	0.39%	▼56,161	-36.68%	$734

Showing 1 to 20 of 76 holders