One Stop Systems Inc

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One Stop Systems Inc
TickerOSS
CIK #0001394056
CUSIP68247W109
SectorTechnology - Electronic Computers
Address2235 Enterprise St Suite 110, Escondido, CA 92029
Source [EDGAR]
CIK Filing 2011 - 2026
[0001394056] 10-K
[0001394056] 10-Q
[0001394056] 3
[0001394056] 4
[0001394056] 5
[0001394056] 8-K
[0001394056] SC 13D
[0001394056] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Jane Street Group LLC One Stop Systems Inc [2026-05-13] 0.0
Barclays PLC One Stop Systems Inc [2025-02-14] 0.0
Horton Capital Partners Fund LP One Stop Systems Inc [2023-11-03] 81945.35
Lynrock Lake LP One Stop Systems Inc [2023-02-14] 8.9
Ayrton Capital LLC One Stop Systems Inc [2021-03-11] 8.13
Bard Associates Inc One Stop Systems Inc [2020-02-10] 6.2
Jones Randy G One Stop Systems Inc [2019-02-15] 0.3
Cooper Steve D One Stop Systems Inc [2019-02-15] 24.2
Wasatch Advisors Inc One Stop Systems Inc [2019-02-14] 7.2
Reardon James M One Stop Systems Inc [2018-09-10] 0.5
Hirschman Orin One Stop Systems Inc [2018-05-04] 7.4
Form 3/4/5 Filer 2011 - 2026
One Stop Systems Inc
Knowles Michael
Gabel Daniel G
Dumont Michael J
Bassett David George
Matz Gregory W
Herbets Mitchell H
Ison James
Morrison John W Jr
Manko Joseph M Jr
Potashner Kenneth F
Messinger Gioia
RAUN David
Cooper Steve D
Lowman Teresita M
Sentovich Kimberly C
Harrison Jack
Reardon James M
Cooper Revocable Trust dated April 25 2001
Bressner Josef
Reardon John Ralph
D'Amato Barbara
Jones Randy G
Carpenter William
Randy Jones & Roseann Piazza Jones Revocable Trust
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Ison James
Common Stock
2026-02-15 Gift 4,263 $0.00
Ison James
Common Stock
2026-02-15 Tax withheld 3,120 $8.70 27,144
Knowles Michael
Common Stock
2026-02-15 Tax withheld 6,650 $8.70 57,855
Ison James
Common Stock
2026-02-15 Gift 4,263 $0.00
Gabel Daniel G
Common Stock
2026-02-07 Grant 55,239 $0.00
Ison James
Common Stock
2026-02-07 Grant 34,313 $0.00
Knowles Michael
Common Stock
2026-02-07 Grant 101,862 $0.00
Knowles Michael
Common Stock
2026-02-07 Tax withheld 13,298 $9.24 122,874
Gabel Daniel G
Common Stock
2026-02-07 Tax withheld 7,799 $9.24 72,063
Ison James
Common Stock
2026-02-07 Gift 8,213 $0.00
Ison James
Common Stock
2026-02-07 Gift 8,213 $0.00
Ison James
Common Stock
2026-02-07 Tax withheld 6,546 $9.24 60,485
Knowles Michael
Common Stock
2025-12-31 Tax withheld 19,075 $7.18 136,958
Gabel Daniel G
Common Stock
2025-12-31 Tax withheld 3,215 $7.18 23,084
Common Stock
2025-08-20 Gift 4,271 $0.00
Common Stock
2025-08-20 Gift 4,271 $0.00
Common Stock
2025-08-20 Tax withheld 8,359 $5.26 43,968
Common Stock
2025-08-20 Tax withheld 3,113 $5.26 16,374
Common Stock
2025-06-05 Tax withheld 19,075 $3.06 58,370
Dumont Michael J
Common Stock
2025-05-21 Tax withheld 21,000 $0.00
showing 20 of 200 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 78 9,229,064
2025-12-31 70 9,709,844
2025-09-30 60 9,883,151
2025-06-30 39 6,636,655
2025-03-31 34 5,387,990
2024-12-31 38 5,341,757
2024-09-30 28 5,143,462
2024-06-30 36 5,533,855
2024-03-31 27 5,485,777
2023-12-31 30 5,610,859
2023-09-30 27 5,587,199
2023-06-30 29 5,866,579
Form 13F Holdings
Firm Period DFND Voting Shares
Optimus Capital Advisors LLC [2026-06-30] SOLE 0 30,000
Baker Tilly Wealth Management LLC [2026-06-30] SOLE 0 20,000
Farther Finance Advisors LLC [2026-06-30] SOLE 0 1,500
Essential Investment Partners LLC [2026-06-30] SOLE 15 15
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