Form 8-K

8-K — Liquidia Corp

Accession: 0001104659-26-071407

Filed: 2026-06-08

Period: 2026-06-08

CIK: 0001819576

SIC: 2834 (PHARMACEUTICAL PREPARATIONS)

Item: Other Events

Item: Financial Statements and Exhibits

Documents

8-K — tm2617139d1_8k.htm (Primary)

EX-99.1 — EXHIBIT 99.1 (tm2617139d1_ex99-1.htm)

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2026-06-08

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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): June 8, 2026

LIQUIDIA CORPORATION

(Exact name of registrant as specified in its charter)

Delaware

001-39724

85-1710962

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

419 Davis Drive, Suite 100, Morrisville, North Carolina

27560

(Address of principal executive offices)

(Zip Code)

Registrant’s telephone number, including

area code: (919) 328-4400

(Former name or former address, if changed since last report.)

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 (see General Instruction

A.2. below):

¨ 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 registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Common stock

LQDA

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 8.01

Other Events.

On June 8, 2026, Liquidia Corporation, a Delaware

corporation, issued a press release announcing that it will be added to the S&P SmallCap 600® Index, effective prior to the opening

of trading on June 22, 2026. A copy of the press release is furnished herewith as Exhibit 99.1.

Item 9.01

Financial Statements and Exhibits.

(d)

Exhibit

No.

Exhibit

99.1

Press Release of Liquidia Corporation, dated June 8, 2026.

104

Cover Page Interactive Data File (embedded within the Inline XBRL document).

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.

June 8, 2026

Liquidia Corporation

By:

/s/ Michael Kaseta

Name: Michael Kaseta

Title: Chief Financial Officer and Chief Operating Officer

EX-99.1 — EXHIBIT 99.1

EX-99.1

Filename: tm2617139d1_ex99-1.htm · Sequence: 2

Exhibit 99.1

Liquidia Corporation

Announces Inclusion

in the S&P SmallCap 600® Index

MORRISVILLE, N.C. (June 8, 2026)

— Liquidia Corporation (Nasdaq: LQDA), a biopharmaceutical company driven by science and compassion to revolutionize care for

patients with challenging respiratory and vascular diseases, announced today that it will be added to the S&P SmallCap 600® Index,

effective prior to the opening of trading on June 22, 2026.

Introduced in 1994, the S&P SmallCap

600 is a widely followed benchmark of 600 U.S. small-cap companies selected by S&P Dow Jones Indices based on market capitalization,

liquidity, shares available for public trading, and profitability criteria.

Dr. Roger Jeffs, Liquidia’s Chief

Executive Officer, said: “Inclusion in the S&P SmallCap 600 is a meaningful marker of how far Liquidia has come, and it is

a credit to the entire team. It reflects the discipline and execution behind our progress and the foundation we have built through our

commitment to patients, innovation and operational excellence. We are focused on the opportunities ahead as we continue our work to revolutionize

care for patients with challenging respiratory and vascular diseases.”

About Liquidia Corporation

Liquidia Corporation is a biopharmaceutical

company driven by science and compassion to revolutionize care for patients with challenging respiratory and vascular diseases through

precise, innovative therapies and applications of its proprietary PRINT® technology. PRINT enabled the development of YUTREPIA®

(treprostinil) inhalation powder for the treatment of pulmonary arterial hypertension (PAH) and pulmonary hypertension associated with

interstitial lung disease (PH-ILD). The company is also developing L606, an investigational extended-release formulation of treprostinil

administered twice-daily with a next-generation nebulizer, and currently markets generic Treprostinil Injection for the treatment of

PAH. To learn more about Liquidia, please visit www.liquidia.com.

Cautionary Statements Regarding Forward-Looking

Statements

This press release may include forward-looking

statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements contained in this press release

other than statements of historical facts, including statements regarding the timing and anticipated impact of the Company’s inclusion

in the S&P SmallCap 600 Index, potential enhanced visibility within the investment community, as well as the Company’s strategy,

operating priorities and future performance, including statements regarding market capitalization, liquidity, financial viability and

long-term value creation, are forward-looking statements. The words “anticipate,” “believe,” “continue,”

“could,” “will,” “estimate,” “expect,” “intend,” “may,” “plan,”

“potential,” “predict,” “project,” “should,” “target,” “would,”

and similar expressions are intended to identify forward-looking statements. We have based these forward-looking statements largely on

our current strategy, short-term and long-term business operations and objectives and financial needs. These forward-looking statements

are subject to a number of risks discussed in our filings with the Securities and Exchange Commission, as well as a number of uncertainties

and assumptions. Moreover, we operate in a very competitive and rapidly changing environment and our industry has inherent risks. New

risks emerge from time to time. It is not possible for our management to predict all risks, nor can we assess the impact of all factors

on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those

contained in any forward-looking statements we may make. In light of these risks, uncertainties and assumptions, the future events discussed

in this press release may not occur and actual results may differ materially and adversely from those anticipated or implied in the forward-looking

statements. Nothing in this press release should be regarded as a representation by any person that these goals will be achieved, and

we undertake no duty to update our goals or to update or alter any forward-looking statements, whether as a result of new information,

future events or otherwise.

Investors:

Jason Adair

Chief Business Officer

919.328.4350

Media Contact:

media@liquidia.com

###

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