ONE STOP SYSTEMS, INC. (OSS) — Institutional Holders, Q2 2026
108 institutional investment managers reported a OSS position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $193.4M. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
OSS in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- BlackRockAdded · +1,240,537 sh+$22.6M
- JANE STREET GROUPAdded · +434,897 sh+$7.9M
- Palisades Investment PartnersNew · +414,392 sh+$7.5M
- GEODE CAPITAL MANAGEMENTAdded · +320,465 sh+$5.8M
- Qube Research & Technologies LtdNew · +318,919 sh+$5.8M
Biggest sellers
- MARSHALL WACE, LLPSold out · -418,978 sh-$7.6M
- MORGAN STANLEYTrimmed · -343,017 sh-$6.2M
- UBS Group AGTrimmed · -334,830 sh-$6.1M
- CITADEL ADVISORSTrimmed · -285,474 sh-$5.2M
- SUSQUEHANNA INTERNATIONAL GROUP, LLPSold out · -236,299 sh-$4.3M
OSS 13F holders ranked 1–100 of 108
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | BlackRock#1 · 1,837,840 sh | 1,837,840 | $33.4M | <0.01% | +207.7% |
| 2 | JANE STREET GROUP#2 · 1,309,455 sh | 1,309,455 | $23.8M | <0.01% | +49.7% |
| 3 | VANGUARD CAPITAL MANAGEMENT#3 · 974,568 sh | 974,568 | $17.7M | <0.01% | +1.6% |
| 4 | GEODE CAPITAL MANAGEMENT#4 · 572,918 sh | 572,918 | $10.4M | <0.01% | +126.9% |
| 5 | BARD ASSOCIATES#5 · 526,370 sh | 526,370 | $9.6M | 2.12% | -2.6% |
| 6 | Palisades Investment Partners#6 · 414,392 sh | 414,392 | $7.5M | 2.14% | New |
| 7 | RENAISSANCE TECHNOLOGIES#7 · 407,860 sh | 407,860 | $7.4M | 0.01% | +56.9% |
| 8 | STATE STREET#8 · 384,259 sh | 384,259 | $7.0M | <0.01% | +277.9% |
| 9 | MILLENNIUM MANAGEMENT#9 · 337,710 sh | 337,710 | $6.1M | <0.01% | -15.7% |
| 10 | Qube Research & Technologies Ltd#10 · 318,919 sh | 318,919 | $5.8M | <0.01% | New |
| 11 | NORTHERN#11 · 178,101 sh | 178,101 | $3.2M | <0.01% | +279.1% |
| 12 | TWO SIGMA INVESTMENTS#12 · 162,193 sh | 162,193 | $2.9M | <0.01% | New |
| 13 | VANGUARD FIDUCIARY#13 · 157,365 sh | 157,365 | $2.9M | <0.01% | +22.2% |
| 14 | VANGUARD PORTFOLIO MANAGEMENT#14 · 155,408 sh | 155,408 | $2.8M | <0.01% | New |
| 15 | Cambridge Investment Research Advisors#15 · 149,292 sh | 149,292 | $2.7M | <0.01% | +2.5% |
| 16 | NEW YORK STATE COMMON RETIREMENT FUND#16 · 147,343 sh | 147,343 | $2.7M | <0.01% | New |
| 17 | DIMENSIONAL FUND ADVISORS#17 · 146,871 sh | 146,871 | $2.7M | <0.01% | New |
| 18 | Squarepoint Ops#18 · 131,346 sh | 131,346 | $2.4M | <0.01% | +124.6% |
| 19 | Informed Momentum#19 · 130,568 sh | 130,568 | $2.4M | 0.21% | -4.0% |
| 20 | DnB Asset Management AS#20 · 118,759 sh | 118,759 | $2.2M | <0.01% | -53.0% |
| 21 | MIRAE ASSET GLOBAL ETFS Ltd.#21 · 99,272 sh | 99,272 | $1.8M | <0.01% | +34.4% |
| 22 | Trexquant Investment#22 · 98,442 sh | 98,442 | $1.8M | 0.01% | -54.8% |
| 23 | MORGAN STANLEY#23 · 88,902 sh | 88,902 | $1.6M | <0.01% | -79.4% |
| 24 | OSAIC#24 · 86,513 sh | 86,513 | $1.6M | <0.01% | +5217.3% |
| 25 | SEI INVESTMENTS#25 · 84,393 sh | 84,393 | $1.5M | <0.01% | -49.4% |
| 26 | GOLDMAN SACHS GROUP#26 · 75,306 sh | 75,306 | $1.4M | <0.01% | -2.2% |
| 27 | Eddie Patel#27 · 72,895 sh | 72,895 | $1.3M | 0.79% | +8.7% |
| 28 | UBS Group AG#28 · 72,184 sh | 72,184 | $1.3M | <0.01% | -82.3% |
| 29 | CITADEL ADVISORS#29 · 71,202 sh | 71,202 | $1.3M | <0.01% | -80.0% |
| 30 | Russell Investments Group, Ltd.#30 · 66,596 sh | 66,596 | $1.2M | <0.01% | New |
| 31 | CHARLES SCHWAB INVESTMENT MANAGEMENT#31 · 65,276 sh | 65,276 | $1.2M | <0.01% | +405.6% |
| 32 | Bank of New York Mellon#32 · 62,473 sh | 62,473 | $1.1M | <0.01% | New |
| 33 | RAYMOND JAMES FINANCIAL#33 · 61,924 sh | 61,924 | $1.1M | <0.01% | New |
| 34 | CITIGROUP#34 · 54,956 sh | 54,956 | $999.1K | <0.01% | -27.4% |
| 35 | LPL Financial#35 · 54,225 sh | 54,225 | $985.8K | <0.01% | New |
| 36 | SG Americas Securities#36 · 47,014 sh | 47,014 | $855.0K | <0.01% | +67.8% |
| 37 | Engineers Gate Manager#37 · 41,732 sh | 41,732 | $758.7K | <0.01% | +43.9% |
| 38 | Penbrook Management#38 · 38,875 sh | 38,875 | $706.7K | — | -16.8% |
| 39 | Polymer Capital Management (HK) LTD#39 · 38,000 sh | 38,000 | $690.8K | 0.04% | New |
| 40 | Inspire Investing#40 · 37,967 sh | 37,967 | $690.2K | — | New |
| 41 | Nuveen#41 · 36,308 sh | 36,308 | $660.1K | <0.01% | New |
| 42 | STIFEL FINANCIAL#42 · 32,920 sh | 32,920 | $598.5K | <0.01% | -13.2% |
| 43 | BANK OF AMERICA#43 · 32,151 sh | 32,151 | $584.5K | 0.00% | +38.3% |
| 44 | Calamos Advisors#44 · 31,973 sh | 31,973 | $581.3K | <0.01% | New |
| 45 | THOMPSON SIEGEL & WALMSLEY#45 · 31,788 sh | 31,788 | $578.0K | 0.01% | -67.2% |
| 46 | Optimus Capital Advisors#46 · 30,000 sh | 30,000 | $545.4K | 0.29% | New |
| 47 | RHUMBLINE ADVISERS#47 · 27,871 sh | 27,871 | $506.7K | <0.01% | New |
| 48 | ACADIAN ASSET MANAGEMENT#48 · 27,282 sh | 27,282 | $495.0K | <0.01% | New |
| 49 | WELLS FARGO & COMPANY#49 · 26,784 sh | 26,784 | $486.9K | <0.01% | +2578.4% |
| 50 | ESSEX INVESTMENT MANAGEMENT#50 · 25,674 sh | 25,674 | $466.8K | — | -27.7% |
| 51 | DEUTSCHE BANK AG\#51 · 22,348 sh | 22,348 | $406.3K | <0.01% | New |
| 52 | FOX RUN MANAGEMENT, L.L.C.#52 · 22,208 sh | 22,208 | $403.7K | 0.07% | New |
| 53 | BAKER TILLY WEALTH MANAGEMENT#53 · 20,000 sh | 20,000 | $363.6K | — | 0.0% |
| 54 | Lodestone Wealth Management#54 · 19,637 sh | 19,637 | $357.0K | — | +188.7% |
| 55 | PRICE T ROWE ASSOCIATES#55 · 18,450 sh | 18,450 | $336.0K | 0.00% | New |
| 56 | OCCUDO QUANTITATIVE STRATEGIES#56 · 18,117 sh | 18,117 | $329.4K | 0.02% | +31.9% |
| 57 | Caitong International Asset Management , Ltd#57 · 17,337 sh | 17,337 | $315.2K | 0.04% | +377.3% |
| 58 | Apollon Wealth Management#58 · 16,195 sh | 16,195 | $294.4K | — | -23.0% |
| 59 | State of Wyoming#59 · 15,423 sh | 15,423 | $280.4K | 0.03% | New |
| 60 | BARCLAYS PLC#60 · 14,679 sh | 14,679 | $266.9K | <0.01% | -28.4% |
| 61 | Clear Street Group#61 · 14,250 sh | 14,250 | $259.1K | <0.01% | New |
| 62 | Cornerstone Investment Partners#62 · 14,218 sh | 14,218 | $258.5K | <0.01% | New |
| 63 | Marex Group plc#63 · 13,700 sh | 13,700 | $249.1K | <0.01% | New |
| 64 | MetLife Investment Management#64 · 13,347 sh | 13,347 | $242.6K | <0.01% | New |
| 65 | CANTOR FITZGERALD, L. P.#65 · 13,049 sh | 13,049 | $237.2K | <0.01% | New |
| 66 | LMR Partners LLP#66 · 12,571 sh | 12,571 | $228.5K | <0.01% | New |
| 67 | Invesco Ltd.#67 · 12,209 sh | 12,209 | $222.0K | 0.00% | New |
| 68 | McAdam#68 · 12,198 sh | 12,198 | $221.8K | — | -4.3% |
| 69 | Brevan Howard Capital Management#69 · 12,168 sh | 12,168 | $221.2K | <0.01% | -71.8% |
| 70 | Total Clarity Wealth Management#70 · 11,494 sh | 11,494 | $209.0K | — | New |
| 71 | Spark Investment Management#71 · 11,400 sh | 11,400 | $207.3K | 0.40% | New |
| 72 | Savant Capital#72 · 16,000 sh | 16,000 | $206.0K | <0.01% | New |
| 73 | CHOREO#73 · 11,306 sh | 11,306 | $205.5K | <0.01% | 0.0% |
| 74 | Connective Capital Management#74 · 11,198 sh | 11,198 | $203.6K | 0.14% | New |
| 75 | HighTower Advisors#75 · 10,365 sh | 10,365 | $188.4K | <0.01% | New |
| 76 | Strait & Sound Wealth Management#76 · 10,000 sh | 10,000 | $181.8K | 0.06% | -9.5% |
| 77 | JPMORGAN CHASE#77 · 9,315 sh | 9,315 | $154.4K | 0.00% | New |
| 78 | Vanguard Global Advisers#78 · 7,884 sh | 7,884 | $143.3K | <0.01% | -27.1% |
| 79 | ALLIANCEBERNSTEIN L.P.#79 · 16,830 sh | 16,830 | $127.4K | 0.00% | New |
| 80 | Police & Firemen's Retirement System of New Jersey#80 · 6,627 sh | 6,627 | $120.5K | <0.01% | New |
| 81 | Quantbot Technologies#81 · 6,082 sh | 6,082 | $110.6K | <0.01% | New |
| 82 | STRS OHIO#82 · 4,400 sh | 4,400 | $80.0K | <0.01% | New |
| 83 | Global Retirement Partners#83 · 4,000 sh | 4,000 | $72.7K | <0.01% | — |
| 84 | BNP PARIBAS FINANCIAL MARKETS#84 · 3,899 sh | 3,899 | $70.9K | 0.00% | +95.3% |
| 85 | Smartleaf Asset Management#85 · 4,000 sh | 4,000 | $66.3K | <0.01% | 0.0% |
| 86 | NATIONAL BANK OF CANADA#86 · 3,500 sh | 3,500 | $63.6K | 0.00% | New |
| 87 | NewEdge Advisors#87 · 2,500 sh | 2,500 | $45.5K | <0.01% | New |
| 88 | Legal & General Group Plc#88 · 2,172 sh | 2,172 | $39.5K | 0.00% | New |
| 89 | Ameritas Investment Partners#89 · 2,039 sh | 2,039 | $37.1K | <0.01% | New |
| 90 | Farther Finance Advisors#90 · 1,500 sh | 1,500 | $27.3K | — | New |
| 91 | SBI Securities , Ltd.#91 · 1,372 sh | 1,372 | $24.9K | — | +9700.0% |
| 92 | Tower Research Capital (TRC)#92 · 1,340 sh | 1,340 | $24.4K | <0.01% | -71.8% |
| 93 | ROYAL BANK OF CANADA#93 · 1,315 sh | 1,315 | $24.0K | 0.00% | +138.2% |
| 94 | JONES FINANCIAL COMPANIES LLLP#94 · 1,465 sh | 1,465 | $23.8K | 0.00% | +742.0% |
| 95 | FMR#95 · 996 sh | 996 | $18.1K | 0.00% | +1678.6% |
| 96 | Lynrock Lake#96 · 666 sh | 666 | $12.1K | <0.01% | 0.0% |
| 97 | Hurley Capital#97 · 622 sh | 622 | $11.3K | <0.01% | 0.0% |
| 98 | Founders Capital Management#98 · 600 sh | 600 | $10.9K | — | New |
| 99 | Steward Partners Investment Advisory#99 · 594 sh | 594 | $10.8K | <0.01% | +197.0% |
| 100 | SRS Capital Advisors#100 · 546 sh | 546 | $9.9K | <0.01% | -77.9% |
Funds that sold out of OSS in Q2 2026 (19)
Held OSS at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| MARSHALL WACE, LLP418,978 sh | 418,978 | $3.2M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP236,299 sh | 236,299 | $1.8M |
| HRT FINANCIAL79,005 sh | 79,005 | $598.0K |
| OXFORD ASSET MANAGEMENT LLP64,403 sh | 64,403 | $487.5K |
| Virtu Financial61,458 sh | 61,458 | $465.0K |
| 683 Capital Management60,000 sh | 60,000 | $454.2K |
| XTX Topco Ltd50,862 sh | 50,862 | $385.0K |
| Hudson Bay Capital Management37,376 sh | 37,376 | $282.9K |
| Centiva Capital33,627 sh | 33,627 | $254.6K |
| Schonfeld Strategic Advisors29,480 sh | 29,480 | $223.2K |
| Hillsdale Investment Management28,844 sh | 28,844 | $218.3K |
| MANGROVE PARTNERS IM23,889 sh | 23,889 | $180.8K |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C.17,269 sh | 17,269 | $130.7K |
| OMERS ADMINISTRATION15,200 sh | 15,200 | $115.1K |
| IMC-Chicago11,187 sh | 11,187 | $84.7K |
| NKCFO10,000 sh | 10,000 | $76.0K |
| Advisory Services Network2,341 sh | 2,341 | $17.7K |
| MAI Capital Management226 sh | 226 | $1.7K |
| Root Financial Partners65 sh | 65 | $492.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.