# EDGAR Filing Document

**Accession Number:** 0000768408
**File Stem:** 0000947871-26-000144
**Filing Date:** 2026-2
**Character Count:** 2833
**Document Hash:** 59302559d46d54fdeaedfd744ba2a101
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000947871-26-000144.hdr.sgml**: 20260213

**ACCESSION NUMBER**: 0000947871-26-000144

**CONFORMED SUBMISSION TYPE**: 15-12G

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260213

**DATE AS OF CHANGE**: 20260213

**EFFECTIVENESS DATE**: 20260213

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** CYANOTECH CORP
- **CENTRAL INDEX KEY:** 0000768408
- **STANDARD INDUSTRIAL CLASSIFICATION:** MEDICINAL CHEMICALS & BOTANICAL PRODUCTS [2833]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 911206026
- **STATE OF INCORPORATION:** NV
- **FISCAL YEAR END:** 0331

**FILING VALUES:**
- **FORM TYPE:** 15-12G
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-14602
- **FILM NUMBER:** 26631525

**BUSINESS ADDRESS:**
- **STREET 1:** 73-4460 QUEEN KAAHUMANU HWY
- **STREET 2:** SUITE 102
- **CITY:** KAILUA KONA
- **STATE:** HI
- **ZIP:** 96740
- **BUSINESS PHONE:** 8083261353

**MAIL ADDRESS:**
- **STREET 1:** 73-4460 QUEEN KAAHUMANU HWY
- **STREET 2:** SUITE 102
- **CITY:** KAILUA-KONA
- **STATE:** HI
- **ZIP:** 96740

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 15**

**CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER<br> SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION<br> OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE<br> SECURITIES EXCHANGE ACT OF 1934.**

**Commission File Number <u>0-14602</u>**

**Cyanotech Corporation**

(Exact name of registrant as specified in its charter)

**73-4460 Queen Kaahumanu Highway, Suite #102**

**Kailua Kona, HI 96740**

**Tel: (808) 326-1353**

(Address, including zip code, and telephone number, including area code, of registrant's principal executive offices)

**Common Stock, par value $0.02 per share**

(Title of each class of securities covered by this Form)

**None.**

(Titles of all other classes of securities for which a duty to file reports under section 13(a) or 15(d) remains)

Please place an X in the box(es) to designate the appropriate rule provision(s) relied upon to terminate or suspend the duty to file reports:

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| | |
|:---|:---|
| Rule 12g-4(a)(1) | ⌧ |
| Rule 12g-4(a)(2) | ◻ |
| Rule 12h-3(b)(1)(i) | ⌧ |
| Rule 12h-3(b)(1)(ii) | ◻ |
| Rule 15d-6 | ◻ |
| Rule 15d-22(b) | ◻ |

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Approximate number of holders of record as of the certification or notice date: 86

Pursuant to the requirements of the Securities Exchange Act of 1934, Cyanotech Corporation has caused this certification/notice to be signed on its behalf by the undersigned duly authorized person.

---

| | | |
|:---|:---|:---|
|  | **CYANOTECH CORPORATION** | **CYANOTECH CORPORATION** |
| Date: <u>February 13, 2026</u> | By: | /s/ Matthew K. Custer |
|  |  | Name: Matthew K. Custer |
|  |  | Title: President and Chief Executive Officer |

---