Form 8-K

8-K — Outlook Therapeutics, Inc.

Accession: 0001104659-26-112356

Filed: 2026-09-30

Period: 2026-09-25

CIK: 0001649989

SIC: 2836 (BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES))

Item: Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT

REPORT

Pursuant

to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date

of Report (Date of earliest event reported): September 25, 2026

Outlook Therapeutics,

Inc.

(Exact

name of registrant as specified in its charter)

Delaware

001-37759

38-3982704

(State or other jurisdiction

of incorporation)

(Commission File Number)

(IRS Employer Identification No.)

111

S. Wood Avenue,

Unit

#100

Iselin, New Jersey

08830

(Address of principal executive offices)

(Zip Code)

Registrant's telephone number, including area code:

(609) 619-3990

Check the appropriate box below if the Form 8-K

filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities pursuant to Section 12(b) of the Act:

Title of Each Class

Trading Symbol(s)

Name of Each Exchange

on Which

Registered

Common Stock

OTLK

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth

company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange

Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ¨

If an emerging growth company, indicate by check mark if the registrant

has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant

to Section 13(a) of the Exchange Act. ¨

Item 3.01.

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing.

On September 25, 2026, Outlook Therapeutics, Inc.,

a Delaware corporation (the “Company”), received a letter from the Listing Qualifications Staff (the “Nasdaq Staff”)

of The Nasdaq Stock Market LLC (“Nasdaq”) notifying the Company that for the last 30 consecutive business days, the bid price

of the Company’s common stock had closed below $1.00 per share, the minimum closing bid price required by the continued listing

requirements of Nasdaq Listing Rule 5550(a)(2).

The notification received has no immediate effect

on the listing of the Company’s common stock on the Nasdaq Capital Market. In accordance with Nasdaq Listing Rule 5810(c)(3)(A),

the Company has 180 calendar days, or until March 24, 2027 (the “Compliance Date”), to regain compliance with the minimum

bid price requirement. To regain compliance, the closing bid price of the Company’s common stock must be at least $1.00 per share

for a minimum of ten consecutive business days before the Compliance Date.

If the Company’s common stock does not achieve

compliance by the Compliance Date, the Company may be eligible for an additional 180-day period to regain compliance if it meets the continued

listing requirement for market value of publicly held shares and all other initial listing standards, with the exception of the bid price

requirement, and provides written notice to Nasdaq of its intention to cure the deficiency during the second compliance period, by effecting

a reverse stock split, if necessary. However, if it appears to the Nasdaq Staff that the Company will not be able to cure the deficiency,

or if the Company is otherwise not eligible for the additional compliance period, and the Company does not regain compliance by the Compliance

Date, the Nasdaq Capital Market will provide written notification to the Company that its common stock is subject to delisting. At that

time, the Company may appeal the delisting determination to a hearings panel pursuant to the procedures set forth in the applicable Nasdaq

listing rules. However, there can be no assurance that, if the Company does appeal the delisting determination by Nasdaq to the panel,

such appeal would be successful.

The Company intends to actively monitor the closing

bid price of its common stock between now and the Compliance Date and will evaluate available options to resolve the deficiency and regain

compliance with the minimum bid price rule.

SIGNATURES

Pursuant to the requirements of the Securities

Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Outlook Therapeutics, Inc.

Date: September 30, 2026

By:

/s/ Kevin Lundquist

Kevin Lundquist

Chief Financial Officer

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