2 insiders reported 10 Form 4 transactions for BIOLARGO, INC. (BLGO) over the past 18 months (most recent 2026-07-07). Recent activity: CODE KENNETH REAY (Chief Science Officer) Buy 532,567 shares, CALVERT DENNIS P (President) Buy 699,569 shares, CALVERT DENNIS P (President) Buy 219,914 shares, CODE KENNETH REAY (Chief Science Officer) Buy 69,444 shares, CALVERT DENNIS P (President) Buy 130,222 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-07 | CODE KENNETH REAY | Chief Science Officer | Buy | 532,567 | $60,446 |
| 2026-07-02 | CALVERT DENNIS P | President | Buy | 699,569 | $79,401 |
| 2026-07-02 | CALVERT DENNIS P | President | Buy | 219,914 | $24,850 |
| 2026-04-02 | CODE KENNETH REAY | Chief Science Officer | Buy | 69,444 | $11,250 |
| 2026-01-05 | CALVERT DENNIS P | President | Buy | 130,222 | $23,440 |
| 2026-01-05 | CODE KENNETH REAY | Chief Science Officer | Buy | 54,803 | $9,865 |
| 2025-11-17 | CODE KENNETH REAY | Chief Science Officer | Buy | 313,754 | $50,201 |
| 2025-11-17 | CALVERT DENNIS P | President | Buy | 310,269 | $49,643 |
| 2025-07-16 | CODE KENNETH REAY | Chief Science Officer | Buy | 181,253 | $36,251 |
| 2025-07-16 | CALVERT DENNIS P | President | Buy | 169,498 | $33,900 |
Source: SEC Form 4 filings · as of 2026-07-07