Name: BIOLARGO, INC. Insider Trading Activity
Creator: InsiderAct
Published: 2026-03-31
License: https://www.sec.gov/about/privacy-information

Question 1

Who are the insiders buying BIOLARGO, INC. stock?

Accepted Answer

InsiderAct tracks all open-market purchases of BIOLARGO, INC. stock by corporate insiders — including officers, directors, and shareholders owning more than 10% — sourced from public SEC Form 4 filings.

Question 2

What does insider buying at a company mean?

Accepted Answer

When a corporate officer, director, or major shareholder purchases their own company's stock on the open market using personal funds, it signals confidence in the company's outlook. This is especially meaningful when multiple insiders buy within the same 7–14 day window (cluster buying) or when the purchase size exceeds $100,000.

Question 3

How do I find cluster buying signals for a company?

Accepted Answer

InsiderAct automatically detects cluster buying — two or more insiders independently purchasing shares within a 14-day window. When a cluster buy signal is active for a company, it appears prominently on the company's InsiderAct page and on the Signals tab.

Question 4

Has BIOLARGO, INC. had any recent large insider purchases?

Accepted Answer

InsiderAct tracks all open-market purchases of $100,000 or more at BIOLARGO, INC.. Large insider purchases are flagged as high-conviction signals because they represent meaningful personal capital commitments by executives or directors who have direct visibility into the company's operations and prospects.

Question 5

Where do the insider transactions on this page come from?

Accepted Answer

All transactions shown on InsiderAct company pages are sourced directly from SEC EDGAR Form 4 filings — the mandatory public disclosures that corporate insiders must submit within 2 business days of any stock transaction. InsiderAct ingests these filings in near real time and filters for open-market purchases and sales.


2026-04-02	2026-03-31	Code Kenneth Reay	CSO	Award	69,444	$0.16	$11,250
2026-04-01	2026-03-31	Strommen Jack B.	Director	Award	92,593	$0.16	$15,000
2026-04-01	2026-03-31	Bray Christina Elaine	Director	Award	115,741	$0.16	$18,750
2026-04-01	2026-03-31	Park Linda	Director	Award	115,741	$0.16	$18,750
2026-04-01	2026-03-31	Marshall Dennis E	Director	Award	138,889	$0.16	$22,500
2026-04-01	2026-03-31	Marshall Dennis E	Director	Award	115,741	$0.16	$18,750
2026-02-03	2026-02-01	Dargan Charles K	CFO	Award	300,000	$0.18	$53,700
2026-01-05	2025-12-31	Calvert Dennis P	President	Award	130,222	$0.18	$23,961
2026-01-05	2025-12-31	Code Kenneth Reay	CSO	Award	54,803	$0.18	$10,084
2026-01-05	2025-12-31	Marshall Dennis E	Director	Award	122,084	$0.00	$0

BLGO

Latest Insider Transactions

Want to see more transactions?