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IMMUCELL CORP /DE/

For the period ended May 8, 2026. Filed May 8, 2026.

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A notice of a major event between regular reports, such as results, a deal or a change of executives. It is often the first formal record of the news.

May 8, 2026 · Filed May 8, 2026

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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)May 8, 2026

ImmuCell Corporation

(Exact name of registrant as specified in its charter)

DE001-1293401-0382980
(State or other jurisdiction of incorporation)(Commission File Number)(IRS Employer Identification No.)
56 Evergreen Drive Portland, Maine04103
(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code 207-878-2770

(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:

☐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

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

Title of each classTrading symbol(s)Name of each exchange on which registered
Common Stock, $0.10 par value per shareICCCThe NASDAQ Capital Market

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. ☐

On May 8, 2026, ImmuCell Corporation and Norbrook Laboratories Limited (incorporated and registered in Northern Ireland) entered into a Settlement Deed to resolve and release any and all claims arising out of or relating to an underlying 2019 Development Services and Commercial Supply Agreement between the two companies. As previously reported, that agreement expired March 31, 2026. Under the Settlement Deed, Norbrook has agreed to pay ImmuCell the sum of $2,000,000. The Settlement Deed is governed by Northern Ireland law, includes undertakings regarding confidentiality, and does not constitute an admission of liability or wrongdoing on the part of either party.

SIGNATURE

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.

IMMUCELL CORPORATION
Date: May 8, 2026By:/s/ Timothy C. Fiori
Timothy C. Fiori
Chief Financial Officer
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