# EDGAR Filing Document

**Accession Number:** 0001484565
**File Stem:** 0001193125-26-245197
**Filing Date:** 2026-5
**Character Count:** 2926
**Document Hash:** 16b680dedca0ad0173e504b16c21bba0
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-245197.hdr.sgml**: 20260528

**ACCESSION NUMBER**: 0001193125-26-245197

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

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260528

**DATE AS OF CHANGE**: 20260528

**EFFECTIVENESS DATE**: 20260528

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SOLENO THERAPEUTICS INC
- **CENTRAL INDEX KEY:** 0001484565
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 770523891
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 15-12G
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-36593
- **FILM NUMBER:** 261035535

**BUSINESS ADDRESS:**
- **STREET 1:** 100 MARINE PARKWAY, SUITE 400
- **CITY:** REDWOOD CITY
- **STATE:** CA
- **ZIP:** 94065
- **BUSINESS PHONE:** 650-213-8444

**MAIL ADDRESS:**
- **STREET 1:** 100 MARINE PARKWAY, SUITE 400
- **CITY:** REDWOOD CITY
- **STATE:** CA
- **ZIP:** 94065

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Capnia, Inc.
- **DATE OF NAME CHANGE:** 20100219

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

**FORM 15** 

**CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION** 

**UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934** 

**OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d)** 

**OF THE SECURITIES EXCHANGE ACT OF 1934.** 

**Commission File Number: 001-36593** 

## Soleno Therapeutics, Inc.
**(Exact name of registrant as specified in its charter)** 

**100 Marine Parkway, Suite 400** 

**Redwood City, California 94065** 

**(650) 213-8444** 

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

**Common Stock, par value $0.001 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:

---

| | |
|:---|:---|
|  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) | ☐ |

---

Approximate number of holders of record as of the certification or notice date: One (1) holder.

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

---

| | | |
|:---|:---|:---|
|  | **Soleno Therapeutics, Inc.** | **Soleno Therapeutics, Inc.** |
|  | By: | */s/ Darin M. Lippoldt* |
|  | Name: | Darin M. Lippoldt |
|  | Title: | President and Secretary |
| Date: May 28, 2026 |  |  |

---