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Disclosery

OSS ONE STOP SYS INC

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COMMON STOCK (common), issuer CIK 1394056

58 managers (59 13F filers) reported a position in OSS shares at 2025-09-30, 9,714,793 shares in all. 26 filers opened a position and 6 filers sold out during the quarter.

Managers
58
13F filers
59
New
26
Added
17
Reduced
12
Sold out
6
Shares held by filers
9,714,793

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

Each filer's latest stake. The shares are the aggregate the reporting persons state, which can include entities that file no 13F.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Lynrock Lake LP1,443,687$7.74M0.62%-605,68713F-HRTimeline
BARD ASSOCIATES INC917,302$4.92M1.3%-30,55513F-HRTimeline
VANGUARD GROUP INCin group VANGUARD GROUP INC872,700$4.68M<0.01%+129,47913F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC864,939$4.64M<0.01%+711,40113F-HRTimelineGroup
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …552,071$2.96M<0.01%new13F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP501,169$2.69M<0.01%+24,77613F-HRTimelineGroup
Archon Capital Management LLC476,812$2.56M1.52%+323,71413F-HRTimeline
Pacific Ridge Capital Partners, LLC445,794$2.39M0.53%-9,07813F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC393,160$2.11M<0.01%+291,30013F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC326,042$1.75M<0.01%+57,86013F-HRTimelineGroup
Polar Asset Management Partners Inc.292,252$1.57M0.03%new13F-HR/ATimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC211,384$1.13M<0.01%+11,65513F-HRTimelineGroup
THOMPSON SIEGEL & WALMSLEY LLC200,000$1.07M0.02%new13F-HRTimeline
AMH Equity Ltd200,000$1.07M1.34%new13F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…179,924$964K<0.01%+124,29313F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding176,990$949KnewTimeline
Informed Momentum Co LLC162,973$874K0.1%+27,58513F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC144,284$773K<0.01%+107,26413F-HRTimelineGroup
MYDA Advisors LLC100,000$536K0.16%new13F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.93,740$502K<0.01%+1,51413F-HRTimelineGroup
Trexquant Investment LP92,621$496K0.01%new13F-HRTimeline
STATE STREET CORPin group STATE STREET CORP84,976$455K<0.01%013F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC81,315$433K<0.01%new13F-HRTimelineGroup
Marex Group Ltdin group Marex Group Ltd77,050$413K0.01%+67,05013F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd72,114$387K0.02%new13F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC63,300$339K<0.01%new13F-HR/ATimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC58,559$314K<0.01%new13F-HRTimelineGroup
Cubist Systematic Strategies, LLC58,193$312K<0.01%+36,90313F-HRTimeline
ESSEX INVESTMENT MANAGEMENT CO LLC56,550$303K0.05%-16,24113F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY56,203$301K<0.01%-16,30013F-HR/ATimelineGroup
Manatuck Hill Partners, LLC50,000$268K0.09%new13F-HRTimeline
Penbrook Management LLC47,413$254K0.18%new13F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP46,925$252K<0.01%+8,55413F-HRTimelineGroup
HRT FINANCIAL LP43,985$235K<0.01%+4,82713F-HRTimeline
OCCUDO QUANTITATIVE STRATEGIES LP36,628$196K0.02%new13F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP35,923$193K<0.01%-8,36613F-HRTimelineGroup
Engineers Gate Manager LP34,234$183K<0.01%new13F-HRTimeline
Virtu Financial LLCin group Virtu Financial LLC26,616$143K0.01%-23,80913F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC20,986$112K<0.01%new13F-HRTimelineGroup
BAKER TILLY WEALTH MANAGEMENT, LLC20,000$107K0.02%013F-HRTimeline
Centiva Capital, LP18,088$97K0.01%new13F-HRTimeline
DNB Asset Management ASin group DNB Asset Management AS15,548$83.3K<0.01%new13F-HRTimelineGroup
Legato Capital Management LLC13,305$71.3K0.01%-3,82713F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co12,911$69.2K<0.01%013F-HRTimelineGroup
Graham Capital Management, L.P.11,706$62.7K<0.01%new13F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…5,200$27.9K<0.01%new13F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC3,506$18.8K<0.01%new13F-HR/ATimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…3,433$18.4K<0.01%+2,28913F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/2,747$14.7K<0.01%-2,27013F-HR/ATimelineGroup
SIMPLEX TRADING, LLC2,337$12K<0.01%-11,22113F-HRTimeline
Advisory Services Network, LLC2,191$11.7K<0.01%new13F-HRTimeline
UBS Group AGin group UBS Group AG1,896$10.2K<0.01%-6,83513F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.1,645$9.49K<0.01%+1,14513F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN1,000$5.36K<0.01%013F-HRTimelineGroup
Stone House Investment Management, LLC300$1.61K<0.01%new13F-HRTimeline
Arax Advisory Partners160$858<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.1$5<0.01%-20013F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA5$00%new13F-HRTimelineGroupValue filed as zero, left out of ratios.

Events

  • Galkin Vladimir and 2 other reporting persons reported 200,000 OSS shares, 0.8% of the class, as of 2026-10-07, in a 13G/A filed 2026-10-09. 0001376474-26-000639

    Accepted , ingested