UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 12b-25

NOTIFICATION OF LATE FILING

(Check One):  ☒ Form 10-K ☐ Form 20-F ☐ Form 11-K ☐ Form 10-Q ☐ Form N-CEN ☐ Form N-CSR

For Period Ended: March 31, 2020

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Nothing in this form shall be construed to imply that the Commission has

verified any information contained herein.

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If the notification relates to a portion of the filing checked above, identify the Item(s) to which the notification relates:

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PART I - REGISTRANT INFORMATION

BIOLARGO, INC.

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Full Name of Registrant

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Former Name if Applicable

14921 Chestnut St.

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Address of Principal Executive

Office (Street and Number)

Westminster, CA 92683

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City, State and Zip Code

PART II - RULES 12b-25(b) AND (c)

If the subject report could not be filed without unreasonable effort or expense and the registrant seeks relief pursuant to Rule 12b-25(b), the following should be completed. (Check box if appropriate)

PART III - NARRATIVE

State below in reasonable detail the reasons why Forms 10-K, 20-F, 11-K, 10-Q, N-SAR, N-CSR, or the transition report or portion thereof, could not be filed within the prescribed period. (Attach Extra Sheets if Needed)

The Registrant is unable to file its report on Form 10-Q without undue burden or expense to the Registrant primarily because of its reliance on contracted service providers during the COVID-19 crisis.

PART IV - OTHER INFORMATION

(1) Name and telephone number of person to contact to this notification

(2) Have all other periodic reports required under Section 13 or 15(d) of the Securities Exchange Act of 1934 or Section 30 of the Investment Company Act of 1940 during the preceding 12 months (or for such shorter) period that the registrant was required to file such reports) been filed? If answer is no, identify report(s).

☒ Yes ☐ No

(3) Is it anticipated that any significant change in results of operations from the corresponding period for the last fiscal year will be reflected by the earnings statements to be included in the subject report or portion thereof?

☐ Yes ☒ No

If so, attach an explanation of the anticipated change, both narratively and quantitatively, and, if appropriate, state the reasons why a reasonable estimate of the results cannot be made.

has caused this notification to be signed on its behalf by the undersigned hereunto duly authorized.