Penbrook Management LLC
- SEC CIK
- 0001381055
- Latest filing
- Jul 23, 2026
OSS holding history
One Stop Systems, Inc. in every 13F filed by Penbrook Management LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
OSS overviewAll 13F holders of OSSFull Q2 2026 holdings
- Shares (Q2 2026)
- 38,875
- Value
- $706.7K
- % of portfolio
- 0.5%
- Quarters held
- 4
- Since Q3 2025