BLGO insider filings
BIOLARGO, INC. — 50 most recent insider filings (SEC Forms 3/4/5) from EDGAR, normalized by FilingPulse. Latest filing: 2026-10-02. Screen BLGO transaction legs live →
Insider transaction summary — last 90 days
2026-07-10 to 2026-10-08, from the filings listed below: 6 insider filings (Forms 3/4/5). Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 9.
By insider — same window
Open-market purchase/sale legs on non-derivative securities, grouped by the filing's reporting owner(s); joint filings appear once. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Insider | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|
| CALVERT DENNIS P — President, Director | 1 | — | — | 2 |
| CODE KENNETH REAY — Chief Science Officer, Director | 1 | — | — | 2 |
| Marshall Dennis E — Director | 1 | — | — | 2 |
| Bray Christina Elaine — Director | 1 | — | — | 1 |
| Park Linda — Director | 1 | — | — | 1 |
| STROMMEN JACK B. — Director | 1 | — | — | 1 |
Recent insider filings — BIOLARGO, INC.
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2026-10-02 | 4 | CODE KENNETH REAY — Chief Science Officer, Director | Grant/award (A): 566,261 @ $0.08 · Gift (G): 2,000,000 @ $0 | EDGAR |
| 2026-10-02 | 4 | CALVERT DENNIS P — President, Director | Grant/award (A): 931,886 @ $0.08 · Gift (G): 2,000,000 @ $0 | EDGAR |
| 2026-10-02 | 4 | Marshall Dennis E — Director | Grant/award (A): 281,248 (derivative) · Grant/award (A): 234,375 (derivative) | EDGAR |
| 2026-10-02 | 4 | STROMMEN JACK B. — Director | Grant/award (A): 187,500 (derivative) | EDGAR |
| 2026-10-02 | 4 | Bray Christina Elaine — Director | Grant/award (A): 234,375 (derivative) | EDGAR |
| 2026-10-02 | 4 | Park Linda — Director | Grant/award (A): 234,375 (derivative) | EDGAR |
| 2026-07-07 | 4 | CODE KENNETH REAY — Chief Science Officer, Director | Grant/award (A): 532,567 @ $0.11 | EDGAR |
| 2026-07-02 | 4 | Bray Christina Elaine — Director | Grant/award (A): 165,198 (derivative) | EDGAR |
| 2026-07-02 | 4 | Park Linda — Director | Grant/award (A): 165,198 (derivative) | EDGAR |
| 2026-07-02 | 4 | STROMMEN JACK B. — Director | Grant/award (A): 132,159 (derivative) | EDGAR |
| 2026-07-02 | 4 | Marshall Dennis E — Director | Grant/award (A): 198,238 (derivative) · Grant/award (A): 115,741 (derivative) | EDGAR |
| 2026-07-02 | 4 | CALVERT DENNIS P — President, Director | Grant/award (A): 699,569 @ $0.11 · Grant/award (A): 219,914 @ $0.11 | EDGAR |
| 2026-06-24 | 4 | Marshall Dennis E — Director | Grant/award (A): 40,909 (derivative) | EDGAR |
| 2026-04-02 | 4 | CODE KENNETH REAY — Chief Science Officer, Director | Grant/award (A): 69,444 @ $0.16 | EDGAR |
| 2026-04-01 | 4 | Bray Christina Elaine — Director | Grant/award (A): 115,741 (derivative) | EDGAR |
| 2026-04-01 | 4 | Park Linda — Director | Grant/award (A): 115,741 (derivative) | EDGAR |
| 2026-04-01 | 4 | STROMMEN JACK B. — Director | Grant/award (A): 92,593 (derivative) | EDGAR |
| 2026-04-01 | 4 | Marshall Dennis E — Director | Grant/award (A): 138,889 (derivative) · Grant/award (A): 115,741 (derivative) | EDGAR |
| 2026-02-03 | 4 | DARGAN CHARLES K — Chief Financial Officer | Grant/award (A): 300,000 (derivative) | EDGAR |
| 2026-01-05 | 4 | Bray Christina Elaine — Director | Grant/award (A): 101,736 (derivative) | EDGAR |
| 2026-01-05 | 4 | Park Linda — Director | Grant/award (A): 101,736 (derivative) | EDGAR |
| 2026-01-05 | 4 | STROMMEN JACK B. — Director | Grant/award (A): 81,389 (derivative) | EDGAR |
| 2026-01-05 | 4 | CODE KENNETH REAY — Chief Science Officer, Director | Grant/award (A): 54,803 @ $0.18 | EDGAR |
| 2026-01-05 | 4 | Marshall Dennis E — Director | Grant/award (A): 122,084 (derivative) · Grant/award (A): 101,736 (derivative) | EDGAR |
| 2026-01-05 | 4 | CALVERT DENNIS P — President, Director | Grant/award (A): 130,222 @ $0.18 | EDGAR |
| 2025-11-17 | 4 | CODE KENNETH REAY — Chief Science Officer, Director | Grant/award (A): 313,754 @ $0.16 | EDGAR |
| 2025-11-17 | 4 | CALVERT DENNIS P — President, Director | Grant/award (A): 310,269 @ $0.16 | EDGAR |
| 2025-10-02 | 4 | Bray Christina Elaine — Director | Grant/award (A): 110,294 (derivative) | EDGAR |
| 2025-10-02 | 4 | Park Linda — Director | Grant/award (A): 110,294 (derivative) | EDGAR |
| 2025-10-02 | 4 | STROMMEN JACK B. — Director | Grant/award (A): 88,235 (derivative) | EDGAR |
| 2025-10-02 | 4 | Marshall Dennis E — Director | Grant/award (A): 132,351 (derivative) · Grant/award (A): 110,294 (derivative) | EDGAR |
| 2025-07-16 | 4 | CODE KENNETH REAY — Chief Science Officer, Director | Grant/award (A): 181,253 @ $0.20 | EDGAR |
| 2025-07-16 | 4 | CALVERT DENNIS P — President, Director | Grant/award (A): 169,498 @ $0.20 | EDGAR |
| 2025-07-02 | 4 | Bray Christina Elaine — Director | Grant/award (A): 93,750 (derivative) | EDGAR |
| 2025-07-02 | 4 | Park Linda — Director | Grant/award (A): 93,750 (derivative) | EDGAR |
| 2025-07-02 | 4 | STROMMEN JACK B. — Director | Grant/award (A): 75,000 (derivative) | EDGAR |
| 2025-07-02 | 4 | Marshall Dennis E — Director | Grant/award (A): 19,000 (derivative) · Grant/award (A): 112,501 (derivative) · Grant/award (A): 93,750 (derivative) | EDGAR |
| 2025-01-03 | 4 | STROMMEN JACK B. — Director | Grant/award (A): 78,947 (derivative) | EDGAR |
| 2024-10-02 | 4 | Bray Christina Elaine — Director | Grant/award (A): 81,522 (derivative) | EDGAR |
| 2024-10-02 | 4 | Park Linda — Director | Grant/award (A): 81,522 (derivative) | EDGAR |
| 2024-10-02 | 4 | STROMMEN JACK B. — Director | Grant/award (A): 65,217 (derivative) | EDGAR |
| 2024-10-01 | 4 | Marshall Dennis E — Director | Grant/award (A): 93,749 (derivative) · Grant/award (A): 81,522 (derivative) | EDGAR |
| 2024-08-15 | 4 | DARGAN CHARLES K — Chief Financial Officer | Grant/award (A): 300,000 (derivative) @ $0 | EDGAR |
| 2024-07-01 | 4 | Bray Christina Elaine — Director | Grant/award (A): 73,529 (derivative) | EDGAR |
| 2024-07-01 | 4 | Park Linda — Director | Grant/award (A): 73,529 (derivative) | EDGAR |
| 2024-07-01 | 4 | STROMMEN JACK B. — Director | Grant/award (A): 58,824 (derivative) | EDGAR |
| 2024-07-01 | 4 | Marshall Dennis E — Director | Grant/award (A): 88,237 (derivative) · Grant/award (A): 73,529 (derivative) | EDGAR |
| 2024-06-25 | 4 | DARGAN CHARLES K — Chief Financial Officer | Grant/award (A): 700,000 (derivative) | EDGAR |
| 2024-04-02 | 4 | STROMMEN JACK B. — Director | Grant/award (A): 42,857 (derivative) | EDGAR |
| 2024-04-02 | 4 | Marshall Dennis E — Director | Grant/award (A): 64,176 (derivative) · Grant/award (A): 53,571 (derivative) | EDGAR |
Recent 8-K events — BIOLARGO, INC.
| Filed | Form | Items reported | Source |
|---|---|---|---|
| 2026-09-14 | 8-K/A | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-09-11 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-06 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-05-04 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-03-25 | 8-K | 1.01 — Entry into a Material Definitive Agreement 3.02 — Unregistered Sales of Equity Securities 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-03-05 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-11-18 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-11-14 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-10-20 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-09-25 | 8-K | 1.02 — Termination of a Material Definitive Agreement 2.06 — Material Impairments 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
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