Gregory W. Matz

Companies

• One Stop Systems, Inc.Board member Jun 15, 2020 to now¹
• Dare Bioscience, Inc.Board member Sep 17, 2018 to now²
• The Cooper CompaniesChief financial officer Dec 19, 2011 to Jun 15, 2016³

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• OSOne Stop Systems, Inc. OSS78,914 shares⁴$516.9K at $6.55May 26, 2026
• DBDare Bioscience, Inc. DARE30,847 shares⁵$22.4K at $0.72Jun 30, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Jun 30, 2026Granted 30,805 shares of Dare Bioscience, Inc.⁵
• May 26, 2026Sold 8,000 shares at $17.52 of One Stop Systems, Inc.⁴
• May 20, 2026Granted 11,984 shares of One Stop Systems, Inc.⁴
• May 21, 2025Granted 21,000 shares of One Stop Systems, Inc.⁶
• Jul 1, 2024Granted 21,000 shares of One Stop Systems, Inc.⁷
• Aug 15, 2023Bought 2,500 shares at $1.77 of One Stop Systems, Inc.⁸
• Mar 17, 2022Granted 13,100 shares of One Stop Systems, Inc.⁹