OSS ONE STOP SYSTEMS, INC.: institutional ownership and insider trading
117 funds reported holding $246M of ONE STOP SYSTEMS, INC. in their latest 13F filings; in Q2 2026 funds net bought $70.2M, with 51 new positions and 18 funds selling out; over the last 12 months insiders bought $0 and sold $369K on the open market.
Famous investors holding OSS
- Renaissance Technologies (Renaissance Technologies): $7.41M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $21.3M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $6.14M, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $2.95M, 0.0% of the portfolio
Largest institutional holders of OSS
- BlackRock, Inc. (BLK) — $33.4M
- JANE STREET GROUP, LLC — $29.2M
- CITADEL ADVISORS LLC — $21.3M
- VANGUARD CAPITAL MANAGEMENT LLC — $17.7M
- SUSQUEHANNA INTERNATIONAL GROUP, LLP — $14.6M
- GEODE CAPITAL MANAGEMENT, LLC — $10.4M
- BARD ASSOCIATES INC — $9.57M
- VANGUARD GROUP INC — $7.57M
- Palisades Investment Partners, LLC — $7.53M
- RENAISSANCE TECHNOLOGIES LLC — $7.41M
Recent OSS insider trades
- May 26, 2026: Bassett David George sold 8,000 shares ($141K)
- May 26, 2026: Matz Gregory W sold 8,000 shares ($140K)
- May 26, 2026: Herbets Mitchell H sold 5,000 shares ($88.1K)
5%+ owners
- BlackRock, Inc.: 7.4% (Schedule 13G, filed Jul 29, 2026)
- JANE STREET GROUP, LLC: 5.6% (Schedule 13G, filed May 13, 2026)