Leonard Braden Michael (CIK 1373603) reported 32 SEC Form 4 insider transactions across 5 companies over the past 18 months (most recent 2026-05-18). Recent activity: Buy OM (323,000 shares), Buy OM (197,600 shares), Buy OM (96,900 shares), Sell ACRS (300,000 shares), Sell ADVM (524,560 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-18 | Outset Medical, Inc. (OM) | Insider | Buy | 323,000 | $1.6M |
| 2026-05-12 | Outset Medical, Inc. (OM) | Insider | Buy | 197,600 | $988,000 |
| 2026-05-12 | Outset Medical, Inc. (OM) | Insider | Buy | 96,900 | $484,500 |
| 2026-04-27 | Aclaris Therapeutics, Inc. (ACRS) | Insider | Sell | 300,000 | $1.4M |
| 2025-12-05 | Adverum Biotechnologies, Inc. (ADVM) | Insider | Sell | 524,560 | $2.2M |
| 2025-12-03 | Adverum Biotechnologies, Inc. (ADVM) | Insider | Sell | 300,000 | $1.3M |
| 2025-12-03 | Adverum Biotechnologies, Inc. (ADVM) | Insider | Sell | 51,961 | $218,236 |
| 2025-12-03 | Adverum Biotechnologies, Inc. (ADVM) | Insider | Sell | 222,925 | $929,597 |
| 2025-10-07 | ASTROTECH Corp (ASTC) | Insider | Sell | 220,410 | $1.6M |
| 2025-10-07 | ASTROTECH Corp (ASTC) | Insider | Sell | 9,166 | $53,438 |
| 2025-06-16 | AN2 Therapeutics, Inc. (ANTX) | Insider | Sell | 200,000 | $218,000 |
| 2025-05-30 | AN2 Therapeutics, Inc. (ANTX) | Insider | Sell | 100,000 | $116,000 |
| 2025-05-30 | AN2 Therapeutics, Inc. (ANTX) | Insider | Sell | 2.0M | $2.3M |
| 2025-05-30 | AN2 Therapeutics, Inc. (ANTX) | Insider | Sell | 425,000 | $429,250 |
| 2025-05-30 | AN2 Therapeutics, Inc. (ANTX) | Insider | Sell | 7,000 | $7,210 |
| 2025-04-28 | Adverum Biotechnologies, Inc. (ADVM) | Insider | Buy | 20,407 | $102,851 |
| 2025-04-28 | Adverum Biotechnologies, Inc. (ADVM) | Insider | Buy | 16,593 | $86,118 |
| 2025-04-28 | Adverum Biotechnologies, Inc. (ADVM) | Insider | Buy | 20,407 | $102,851 |
| 2025-04-28 | Adverum Biotechnologies, Inc. (ADVM) | Insider | Buy | 16,593 | $86,118 |
| 2025-04-24 | Adverum Biotechnologies, Inc. (ADVM) | Insider | Buy | 300,000 | $900,000 |
| 2025-04-24 | Adverum Biotechnologies, Inc. (ADVM) | Insider | Buy | 50,000 | $149,000 |
| 2025-04-02 | Adverum Biotechnologies, Inc. (ADVM) | Insider | Buy | 19,566 | $85,699 |
| 2025-04-02 | Adverum Biotechnologies, Inc. (ADVM) | Insider | Buy | 15,209 | $61,444 |
| 2025-03-27 | Adverum Biotechnologies, Inc. (ADVM) | Insider | Buy | 20,407 | $102,851 |
| 2025-03-27 | Adverum Biotechnologies, Inc. (ADVM) | Insider | Sell | 16,593 | $86,118 |
Source: SEC Form 4 filings · as of 2026-05-18