CASI Pharmaceuticals reports Senior VP departure

CASI Pharmaceuticals, Inc., a clinical-stage biopharmaceutical company developing CID-103, reports a management change.

Rhea-AI Filing Summary

CASI Pharmaceuticals, Inc., a clinical-stage biopharmaceutical company developing CID-103, reports a management change. Wei (Larry) Zhang will no longer serve as Senior Vice President. The change is described as part of ongoing efforts to further streamline branches, personnel and related activities in the United States.

The information in this report is incorporated by reference into existing Form F-3 registration statements. The company also includes standard forward-looking statements language referencing its strategic and operational plans and related risks.

Key Terms

foreign private issuer, Form 6-K, anti-CD38 monoclonal antibody, incorporated by reference, +2 more

6 terms

foreign private issuer regulatory

"Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16"

A foreign private issuer is a company organized outside the United States that meets tests showing it is primarily foreign-controlled and therefore qualifies for a different set of U.S. reporting rules. For investors, that means the company files less frequent or differently formatted disclosures with U.S. regulators and may follow home-country accounting and governance practices, so buying its stock is like dining at a well-reviewed restaurant that follows its home kitchen’s rules instead of the local menu — you get access but should check what standards apply.

Form 6-K regulatory

"Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16"

A Form 6-K is a report that companies listed in certain countries file to provide important updates, such as financial results, corporate changes, or other significant information, to regulators and investors. It functions like an official company update or news release, helping investors stay informed about developments that could affect their investment decisions.

anti-CD38 monoclonal antibody medical

"developing CID-103, an anti-CD38 monoclonal antibody, for patients"

incorporated by reference regulatory

"The information included in this Report on Form 6-K is hereby incorporated by reference"

forward-looking statements regulatory

"This announcement contains forward-looking statements. These statements are made"

Forward-looking statements are predictions or plans that companies share about what they expect to happen in the future, like estimating sales or profits. They matter because they help investors understand a company's outlook, but since they are based on guesses and assumptions, they can sometimes be wrong.

U.S. Private Securities Litigation Reform Act of 1995 regulatory

"under the "safe harbor" provisions of the U.S. Private Securities Litigation Reform Act of 1995"

A federal law that changed the rules for suing companies over securities claims by making it harder to bring class-action lawsuits and by protecting certain forward-looking statements. Think of it as a rulebook that raises the bar for plaintiffs to show clear evidence of wrongdoing and gives companies limited shelter for predictions, which matters to investors because it can reduce litigation risk, legal costs, and volatility tied to lawsuit headlines.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What management change did CASI Pharmaceuticals (CASIF) disclose in this Form 6-K?

CASI Pharmaceuticals disclosed that Wei (Larry) Zhang will no longer serve as the Company’s Senior Vice President. The company links this change to its ongoing efforts to streamline branches, personnel and related activities in the United States.

Why is CASI Pharmaceuticals (CASIF) changing its Senior Vice President role?

The company states that Mr. Zhang’s departure as Senior Vice President was made in connection with efforts to streamline U.S. branches, personnel and related activities, which it had previously announced as part of its operational plans.

How does this CASI Pharmaceuticals (CASIF) 6-K relate to its registration statements?

CASI Pharmaceuticals specifies that the information in this report is incorporated by reference into its Form F-3 registration statements No. 333-283998 and No. 333-281621, making this disclosure part of those offering documents.

What does CASI Pharmaceuticals (CASIF) say about forward-looking statements in this report?

The company includes a detailed forward-looking statements section, citing the U.S. Private Securities Litigation Reform Act of 1995, and notes that strategic and operational plans involve risks that could cause actual results to differ materially.

What is CASI Pharmaceuticals (CASIF) developing according to this 6-K?

CASI Pharmaceuticals describes itself as a clinical-stage biopharmaceutical company developing CID-103, an anti-CD38 monoclonal antibody intended for patients with organ transplant rejection and autoimmune diseases, highlighting its core research focus.

Who signed the CASI Pharmaceuticals (CASIF) Form 6-K and in what capacity?

The report is signed by Wei-Wu He, identified as Chairman to the Board of CASI Pharmaceuticals, indicating board-level authorization of the submission under the Securities Exchange Act of 1934.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/13/2026 - 04:31 PM Accepted by SEC EDGAR 08/13/2026 - 04:30 PM Learn about SEC filing dates

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE
13a-16 OR 15d-16 UNDER
THE SECURITIES EXCHANGE ACT OF 1934

For the month of August, 2026

Commission File Number  001-41666

CASI PHARMACEUTICALS, INC.

(Translation of registrant’s name into English)

1701-1702, China Central Office Tower 1

No. 81 Jianguo Road, Chaoyang District

Beijing, 100025

People’s Republic of China

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.  Form 20-F  x    Form 40-F  ¨

INCORPORATION BY REFERENCE

The information included in this Report on Form 6-K is hereby incorporated by reference into the Company's Registration Statements on Form F-3 (File No. 333-283998 and No. 333-281621) (including any prospectuses forming a part of such registration statement) and is to be a part thereof from the date on which this Report on Form 6-K is filed, to the extent not superseded by documents or reports subsequently filed or furnished.

CASI Pharmaceuticals Announces Change to the Management

CASI Pharmaceuticals, Inc. (OCTQB: CASIF, the “Company”), a clinical-stage biopharmaceutical company developing CID-103, an anti-CD38 monoclonal antibody, for patients with organ transplant rejection and autoimmune diseases, today reported that Mr. Wei (Larry) Zhang will no longer serve as the Senior Vice President of the Company. Such decision was made in connection with the Company’s ongoing efforts to further streamline the Company’s branches, personnel and related activities in the United States as previously announced.

Forward-Looking Statements

This announcement contains forward-looking statements. These statements are made under the "safe harbor" provisions of the U.S. Private Securities Litigation Reform Act of 1995. These forward-looking statements can be identified by terminology such as "will," "expects," "anticipates," "future," "intends," "plans," "believes," "estimates," "confident" and similar statements. Among other things, the business outlook and quotations from management in this announcement, as well as the Company's strategic and operational plans, contain forward-looking statements. The Company may also make written or oral forward-looking statements in its periodic reports to the U.S. Securities and Exchange Commission (the "SEC"), in its annual report to shareholders, in press releases and other written materials and in oral statements made by its officers, directors or employees to third parties. Statements that are not historical facts, including statements about the Company's beliefs and expectations, are forward-looking statements. Forward-looking statements involve inherent risks and uncertainties. A number of factors could cause actual results to differ materially from those contained in any forward-looking statement. Further information regarding these and other risks is included in the Company's filings with the SEC. All information provided herein is as of the date of this announcement, and the Company undertakes no obligation to update any forward-looking statement, except as required under applicable law. We caution readers not to place undue reliance on any forward-looking statements contained herein.

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, thereunto duly authorized.

	CASI Pharmaceuticals, Inc.
	By:	/s/ Wei-Wu He
	Name:	Wei-Wu He
	Title:	Chairman to the Board
Date: August 13, 2026