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BIOLARGO INC (BLGO)

Institutional ownership, SEC filings and insider activity

Sector: Raw materials · SEC CIK 0000880242 · EDGAR filings · Updated 2026-07-07

BIOLARGO INC (BLGO) has 1 institutional managers reporting positions valued at $19.1K per the latest 13F reporting period. SEC filings include an active material impairment disclosure (8-K Item 2.06), substantial-doubt (going concern) disclosure per the filings.

Institutional managers
1
Reported 13F value
$19.1K
Insider activity
6 trans.
$0 net flat
Data flags
2 active
from SEC filings

Latest updates

Institutional ownership overview

According to SEC 13F filings tracked by Sightfile, BIOLARGO INC has 1 institutional holders.

Insider activity

Insiders reported 6 transactions (0 buys, 0 sells) across 2 reporting insiders, with a net reported value of $0.

Data flags from SEC filings

Active substantial-doubt (going concern) disclosure per the filings, most recently filed 2026-05-15 (recurring since 2020-03-31) — source filing. The authoritative details are those stated in the filing itself.
Active material impairment disclosure (8-K Item 2.06), most recently filed 2025-09-25 (recurring since 2025-09-25) — source filing. The authoritative details are those stated in the filing itself.

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Sightfile provides information only — not investment advice, recommendations, or an assessment of any security. Data is derived from official public sources (SEC EDGAR and U.S. government agencies), may contain errors or delays, and should be verified against the source filing before relying on it.
Data sources: SEC EDGAR (filings, 13F, FTD), aggregated by Sightfile. Page updated 2026-07-07.