# CORRESP — BIOLARGO, INC. (BLGO) (CIK 0000880242) > BIOLARGO, INC. (BLGO) (CIK 0000880242) → SEC staff · filed 2026-04-13 · ticker BLGO · SIC 2800 ## What is this A CORRESP letter is the company's written reply to the SEC during a filing review. Responses include accounting position arguments, restatement assessments, and clarifying disclosures. Released to EDGAR alongside the SEC's UPLOAD letters. ## Key facts - **Accession number:** 0001437749-26-012154 - **Form:** CORRESP - **Filer:** BIOLARGO, INC. (BLGO) (CIK 0000880242) - **CIK:** 0000880242 - **Ticker:** BLGO - **Filed:** 2026-04-13 - **SIC industry:** 2800 - **HQ:** Westminster, CA ## Primary source PDF letter: https://www.sec.gov/Archives/edgar/data/880242/000143774926012154/filename1.htm EDGAR review history for this filer: https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=880242&type=UPLOAD&dateb=&owner=include&count=40 ## Other comment-letter activity for BIOLARGO, INC. (BLGO) (CIK 0000880242) - CORRESP — 2026-04-13 — /comment-letter/0001437749-26-012155 - UPLOAD — 2026-04-10 — /comment-letter/0000000000-26-003654 - UPLOAD — 2026-04-10 — /comment-letter/0000000000-26-003653 ## Citation > US Securities and Exchange Commission, EDGAR CORRESP comment letter, BIOLARGO, INC. (BLGO) (CIK 0000880242) (CIK 0000880242), filed 2026-04-13, accession 0001437749-26-012154. Retrieved via MORVS 2026-11-03 from https://api.morvs.ai/comment-letter/0001437749-26-012154. --- *[SEC comment letters dataset](/datasets/sec-comment-letters) · CC0 1.0*