Matz Gregory W (CIK 1536574) reported 4 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-07-02). Recent activity: Buy DARE (30,805 shares), Buy OSS (11,984 shares), Sell OSS (8,000 shares), Buy OSS (21,000 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-02 | Dare Bioscience, Inc. (DARE) | Director | Buy | 30,805 | $0 |
| 2026-05-26 | ONE STOP SYSTEMS, INC. (OSS) | Director | Buy | 11,984 | $0 |
| 2026-05-26 | ONE STOP SYSTEMS, INC. (OSS) | Director | Sell | 8,000 | $140,160 |
| 2025-05-23 | ONE STOP SYSTEMS, INC. (OSS) | Director | Buy | 21,000 | $0 |
Source: SEC Form 4 filings · as of 2026-07-02