# EDGAR Filing Document

**Accession Number:** 0001484565
**File Stem:** 0001193125-26-234406
**Filing Date:** 2026-5
**Character Count:** 3070
**Document Hash:** e490f3b4e2c13687c9f6336e939d4027
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-234406.hdr.sgml**: 20260521

**ACCESSION NUMBER**: 0001193125-26-234406

**CONFORMED SUBMISSION TYPE**: AW

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260521

**DATE AS OF CHANGE**: 20260521

**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:** AW

**SEC ACT:**
- **SEC FILE NUMBER:** 333-275120
- **FILM NUMBER:** 261008397

**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

**Soleno Therapeutics, Inc.** 

**100 Marine Parkway, Suite 400** 

**Redwood City, CA 94065** 

**VIA EDGAR** 

May 21, 2026

Division of Corporation Finance

U.S. Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549

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| | |
|:---|:---|
| **RE:** | **Soleno Therapeutics, Inc.**  |

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**Request for Withdrawal of Post-Effective Amendment No. 1 to Registration Statement on** 

**Form S-3 filed as form type "POSASR"** 

**File No. 333-275120** 

Ladies and Gentlemen:

Soleno Therapeutics, Inc. (the "Company"), pursuant to Rule 477 under the Securities Act of 1933, as amended, hereby respectfully requests the withdrawal of the Company's Post-Effective Amendment No. 1, filed as form type POSASR on May 18, 2026 (the "Amendment"), to the Registration Statement on Form S-3 (File No. 333-275120), filed on October 20, 2023 and declared effective by the U.S. Securities Exchange Commission on October 31, 2023 (the "Registration Statement").

The Company is requesting withdrawal of the Amendment because it was erroneously coded and filed by a third party as form type "POSASR" rather than form type "POS AM." The Company hereby confirms that no securities have been sold pursuant to the Amendment.

The Company intends to refile the Post-Effective Amendment No. 1 to the Registration Statement as form type POS AM.

For the avoidance of doubt, the Company is not requesting the withdrawal of the Company's Post-Effective Amendment No. 1, filed on May 18, 2026 as form type POSASR, to the Registration Statement on Form S-3 (File No. 333-276344), which became automatically effective upon filing with the SEC on January 2, 2024.

Thank you for your assistance with this matter. If you have any questions with respect to the foregoing, please contact Carlos Ramirez of Cooley LLP, our outside counsel, at 858-550-6157.

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| |
|:---|
| Very truly yours, |
| Soleno Therapeutics, Inc. |
| /s/ Darin M. Lippoldt |
| Darin M. Lippoldt |
| President and Secretary |

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