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Shuttingdown

SOLENO THERAPEUTICS INC

Pharmaceutical Preparations · REDWOOD CITY · CA

No longer listed

High confidence (85%)

Updated Oct 15, 2026, 12:02 AM

What is happening

Derived by rule set status-rules-2026.09.7

The company deregistered its securities and stopped filing with the SEC. Companies do that when they are acquired, when they go private, and when they fail; the filing does not say which.

Latest material event: SOLENO THERAPEUTICS INC deregistered its securities (May 28, 2026)

Timeline

Every material event, newest first. History is never overwritten.

  1. SOLENO THERAPEUTICS INC deregistered its securities

    May 28, 2026

    Registration withdrawn

    • SEC EDGAR — “15-12G 1 d215188d1512g.htm 15-12G 15-12G 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…”

  2. SOLENO THERAPEUTICS INC received a delisting notice from its exchange

    May 18, 2026

    Delisting notice received

    • SEC EDGAR — “Item 3.01. Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing On May 18, 2026, the Company notified The Nasdaq Capital Market ( Nasdaq ) of the consummation of the Merger and requested that Nasdaq (i) suspend trading of and delist the Shares and (ii) file with the SEC a notification of removal from listing and/or registration on Form 25 to effect the delisting of all Shares from Nasdaq and the deregistration of such Shares under Section 12(b) of the Securities Exchange Act of 1934, as amended (the Exchange Act ). In addition, the Company intends…”

  3. SOLENO THERAPEUTICS INC was delisted from its exchange

    May 18, 2026

    Delisting effective

    • SEC EDGAR — “X0203 0001354457 Nasdaq Stock Market LLC 0001484565 SOLENO THERAPEUTICS INC 001-36593 203 Redwood Shores Parkway Suite 500 Redwood City CA CALIFORNIA 94065 650-213-8444 Common Stock 17 CFR 240.12d2-2(a)(3) Tara Petta AVP 2026-05-18”

Company information

Founded
—
Employees (estimate)
—
Industry
Pharmaceutical Preparations
Subindustry
—
SEC CIK
0001484565
Website
—
LinkedIn
—
Headquarters
REDWOOD CITY, CA
Also known as
Capnia, Inc.
Legal entities
SOLENO THERAPEUTICS INC

Sources

Every material source used to build this profile.

  • SEC Company Submissions (TIER 1 · UNVERIFIED)

    SOLENO THERAPEUTICS INC — Pharmaceutical Preparations (SIC 2834) — REDWOOD CITY, CA
    View source record

  • SEC EDGAR (TIER 1 · UNVERIFIED)

    15-12G 1 d215188d1512g.htm 15-12G 15-12G 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…
    View source record

  • SEC EDGAR (TIER 1 · UNVERIFIED)

    X0203 0001354457 Nasdaq Stock Market LLC 0001484565 SOLENO THERAPEUTICS INC 001-36593 203 Redwood Shores Parkway Suite 500 Redwood City CA CALIFORNIA 94065 650-213-8444 Common Stock 17 CFR 240.12d2-2(a)(3) Tara Petta AVP 2026-05-18
    View source record

  • SEC EDGAR (TIER 1 · UNVERIFIED)

    Item 3.01. Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing On May 18, 2026, the Company notified The Nasdaq Capital Market ( Nasdaq ) of the consummation of the Merger and requested that Nasdaq (i) suspend trading of and delist the Shares and (ii) file with the SEC a notification of removal from listing and/or registration on Form 25 to effect the delisting of all Shares from Nasdaq and the deregistration of such Shares under Section 12(b) of the Securities Exchange Act of 1934, as amended (the Exchange Act ). In addition, the Company intends…
    View source record

Status history

Every derived status, with the rule that produced it.

  • DISTRESS_SIGNAL → NO_LONGER_LISTEDPUBLIC_LISTING_ENDED · Sep 18, 2026, 01:29 AM

    The company deregistered its securities and stopped filing with the SEC. Companies do that when they are acquired, when they go private, and when they fail; the filing does not say which.

  • DISTRESS_SIGNAL → DISTRESS_SIGNALLISTING_STANDARDS_WARNING · Sep 18, 2026, 01:12 AM

    An exchange warned the company it no longer meets the listing standards. Companies regain compliance often.

  • DISTRESS_SIGNAL → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 15, 2026, 12:32 PM

    The company stopped being publicly listed. That happens to failing companies and to acquired ones alike.

  • DISTRESS_SIGNAL → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 14, 2026, 04:45 PM

    The company stopped being publicly listed. That happens to failing companies and to acquired ones alike.

  • DISTRESS_SIGNAL → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 8, 2026, 04:44 AM

    The company stopped being publicly listed. That happens to failing companies and to acquired ones alike.

  • UNKNOWN → DISTRESS_SIGNALPUBLIC_LISTING_ENDED · Sep 8, 2026, 04:40 AM

    An exchange warned the company it no longer meets the listing standards. Companies regain compliance often.