Rockwell Medical (RMTI) enacts 1-for-10 reverse stock split effective July 1, 2026

Rhea-AI Filing Summary

Rockwell Medical, Inc. is implementing a one-for-ten reverse stock split of its common stock. Effective at 12:01 a.m. Eastern Time on July 1, 2026, each ten existing shares will automatically combine into one new share, with no action required from stockholders.

No fractional shares will be issued; instead, holders will receive cash equal to the applicable fraction multiplied by the June 30, 2026 Nasdaq closing price, adjusted for the split. The common stock will continue trading on Nasdaq under the symbol RMTI and will trade on a split-adjusted basis with a new CUSIP. Proportionate adjustments will also be made to equity awards, preferred stock conversion terms and warrants, while authorized capital and par value remain unchanged.

8-K Event Classification

3 items: 3.03, 5.03, 9.01

3 items

Item 3.03 Material Modification to Rights of Security Holders Securities

A change was made that materially affects the rights of existing shareholders (e.g., dividend rights, voting rights).

Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year Governance

The company amended its charter documents, bylaws, or changed its fiscal year.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, and exhibit attachments filed with this report.

Key Figures

Reverse split ratio: 1-for-10 Effective time: 12:01 a.m. Eastern Time New CUSIP number: 774374409 +5 more

8 metrics

Reverse split ratio 1-for-10 Each ten shares of common stock combined into one share at 12:01 a.m. Eastern Time on July 1, 2026

Effective time 12:01 a.m. Eastern Time Reverse stock split effective on July 1, 2026

New CUSIP number 774374409 CUSIP for Rockwell Medical common stock after reverse split

Authorized shares total 172,000,000 shares Authorized capital after amendment, including common and preferred stock

Authorized common stock 170,000,000 shares Common stock authorization at $0.0001 par value per share

Authorized preferred stock 2,000,000 shares Preferred stock authorization at $0.0001 par value per share

Par value per share $0.0001 per share Par value of common and preferred stock remains unchanged after reverse split

Cash for fractional shares basis June 30, 2026 closing price Fractional share cash payment equals fraction times closing price, adjusted for split

Key Terms

reverse stock split, fractional shares, Series X Convertible Preferred Stock, warrants to purchase Common Stock, +2 more

6 terms

reverse stock split financial

"to implement a reverse stock split (the “Reverse Stock Split”) of the Company’s common stock"

A reverse stock split reduces a company's number of outstanding shares while raising the price per share proportionally, so the total value of each investor's holding is unchanged; a 1-for-10 split turns 100 shares worth $1 each into 10 shares worth $10 each. Companies often do this to regain compliance with an exchange's minimum price rule or to attract investors who avoid very low-priced stocks.

fractional shares financial

"No fractional shares of Common Stock will be issued as a result of the Reverse Stock Split"

Fractional shares are portions of a whole share of a stock or fund, allowing investors to own less than one full unit. They make it possible to invest a specific dollar amount rather than buy whole shares, like buying a slice of a pizza instead of the entire pie. For investors this lowers the cost barrier, helps with diversification, and lets you reinvest dividends or purchase expensive stocks in small, precise amounts.

Series X Convertible Preferred Stock financial

"in accordance with the Certificate of Designation of Preferences, Rights and Limitations of Series X Convertible Preferred Stock"

Series X convertible preferred stock is a class of company shares that pays owners priority dividends and has senior claim on assets, but can be exchanged for ordinary shares under set terms. Think of it as a hybrid ticket that gives safer, up-front benefits yet can be swapped for common stock later, which can dilute existing owners. Investors care because it affects dividend income, downside protection and future share count and voting power.

warrants to purchase Common Stock financial

"in accordance with the terms of the Company’s warrants to purchase Common Stock (the “Warrants”)"

General Corporation Law regulatory

"under and by virtue of the provisions of the General Corporation Law of the State of Delaware"

Certificate of Amendment regulatory

"filed a certificate of amendment (the “Amendment”) to its certificate of incorporation"

A certificate of amendment is an official filing that updates a company’s founding documents—its legal “rulebook” that sets share structure, voting rules, name and basic purpose. Think of it like changing the blueprint of a building: small changes are paperwork, big ones can alter who owns how much and who controls decisions. Investors watch these filings because they can affect share counts, voting power, dilution and company value.

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Understanding 8-K Material Events →

Available on EDGAR 06/29/2026 - 06:17 AM Accepted by SEC EDGAR 06/29/2026 - 06:17 AM Learn about SEC filing dates

0001041024FALSE12/3100010410242026-06-242026-06-24

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 24, 2026

ROCKWELL MEDICAL, INC.

(Exact name of registrant as specified in its charter)

Delaware			000-23661			38-3317208
(State or other jurisdiction of incorporation)			(Commission File Number)			(IRS Employer Identification No.)

30142 S. Wixom Road, Wixom, Michigan 48393

(Address of principal executive offices, including zip code)

(248) 960-9009

(Registrant’s telephone number, including area code)

N/A

(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 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

Name of Each exchange on which registered

Common Stock, par value $0.0001

RMTI

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. ☐

Item 3.03. Material Modification to Rights of Security Holders.

On June 24, 2026, Rockwell Medical, Inc. (the “Company”) filed a certificate of amendment (the “Amendment”) to its certificate of incorporation, as amended, with the Secretary of State of the State of Delaware to implement a reverse stock split (the “Reverse Stock Split”) of the Company’s common stock, par value $0.0001 per share (the “Common Stock”), at a ratio of one-for-ten (the “Reverse Stock Split Ratio”) with an effective time of 12:01 a.m. Eastern Time on July 1, 2026 (the “Effective Time”). The Reverse Stock Split was approved by the Company’s stockholders at this year’s annual meeting, held on June 12, 2026.

The Common Stock is expected to commence trading on a split-adjusted basis at the open of trading on July 1, 2026, at which time the Common Stock will be represented by a new CUSIP number (774374409). The Common Stock will continue to trade on the Nasdaq Stock Market under the symbol “RMTI.”

As of the Effective Time, each ten shares of Common Stock outstanding will be combined, automatically and without any action on the part of the Company or its stockholders, into one new share of Common Stock. No fractional shares of Common Stock will be issued as a result of the Reverse Stock Split. In lieu of any fractional shares to which a stockholder of record would otherwise be entitled, the Company will pay cash (without interest and subject to withholding taxes, as applicable) equal to such fraction multiplied by the closing price of the Common Stock on the Nasdaq Stock Market on June 30, 2026 (as adjusted in good faith by the Company to account for the Reverse Stock Split Ratio). The par value per share of the Common Stock will remain unchanged.

In addition, effective as of the Effective Time and based on the Reverse Stock Split Ratio, proportionate adjustments will be made (i) in accordance with the terms of the Company’s equity plans, to the number of shares subject to outstanding equity awards, the per share exercise price, if any, with respect to those awards and the number of shares of Common Stock reserved for future issuance under such plans, (ii) in accordance with the Certificate of Designation of Preferences, Rights and Limitations of Series X Convertible Preferred Stock (the “Preferred Stock”), to the conversion price of the Preferred Stock and the number of shares of Common Stock reserved for issuance pursuant to the Preferred Stock and (iii) in accordance with the terms of the Company’s warrants to purchase Common Stock (the “Warrants”), to the per share exercise price, if any, with respect to those Warrants and the number of shares of Common Stock reserved for issuance pursuant to the warrants.

The foregoing description of the Amendment does not purport to be complete and is subject to and qualified in its entirety by reference to the Amendment, a copy of which is attached hereto as Exhibit 3.1, and is incorporated herein by reference.

Item 5.03. Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.

The information set forth in Item 3.03 of this Current Report on Form 8-K is incorporated by reference into this Item 5.03.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

EXHIBIT INDEX

Exhibit No.						Description
3.1						Certificate of Amendment to the Certificate of Incorporation of Rockwell Medical, Inc.
104						Cover Page Interactive Data File (embedded within the Inline XBRL document)

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.

			ROCKWELL MEDICAL, INC.
Date: June 29, 2026			By:			/s/ Mark Strobeck
						Mark Strobeck
						Chief Executive Officer

FORM OF CERTIFICATE OF AMENDMENT TO THE

CERTIFICATE OF INCORPORATION OF ROCKWELL MEDICAL, INC.

Rockwell Medical, Inc. (the “Corporation”), a corporation organized and existing under and by virtue of the provisions of the General Corporation Law of the State of Delaware (the “General Corporation Law”), does hereby certify as follows:

1. The current name of the Corporation is Rockwell Medical, Inc.

2. The original certificate of incorporation of the Corporation was filed with the Secretary of State of the State of Delaware on August 30, 2019 and amended on May 12, 2022 (as amended, the “Certificate of Incorporation”).

3. The Board of Directors of the Corporation duly adopted resolutions pursuant to Section 242 of the General Corporation Law proposing this Amendment of the Corporation’s Certificate of Incorporation and declaring the advisability of this Amendment to the Certificate of Incorporation and authorizing the appropriate officers of the Corporation to solicit the consent of the stockholders therefor, which resolution setting forth the proposed amendment is as follows:

RESOLVED, that Section 4.1 of Article IV of the Certificate of Incorporation be and hereby is deleted in its entirety and the following is inserted in lieu thereof:

Section 4.1 Authorized Stock. Effective as of 12:01 a.m. Eastern Time on July 1, 2026 (the “Effective Time”), a one-for-ten reverse stock split of the Corporation’s common stock, $0.0001 par value per share (the “Common Stock”), shall become effective, pursuant to which each ten shares of Common Stock issued or outstanding (including treasury shares) immediately prior to the Effective Time shall be reclassified and combined into one validly issued, fully paid and nonassessable share of Common Stock automatically and without any action by the Corporation or the holder thereof upon the Effective Time and shall represent one share of Common Stock from and after the Effective Time (such reclassification and combination of shares, the “Reverse Stock Split”). The par value of the Common Stock following the Reverse Stock Split shall remain at $0.0001 par value per share. No fractional shares of Common Stock shall be issued as a result of the Reverse Stock Split and, in lieu thereof, any person who would otherwise be entitled to a fractional share of Common Stock as a result of the Reverse Stock Split, following the Effective Time, shall be entitled to receive a cash payment (without interest) equal to the fraction of a share of Common Stock to which such holder would otherwise be entitled multiplied by the closing price of the Common Stock on the first business day immediately prior to the Effective Time (as modified in good faith by the Corporation to account for the Reverse Stock Split ratio).

Each stock certificate or book entry position that, immediately prior to the Effective Time, represented shares of Common Stock that were issued and outstanding immediately prior to the Effective Time shall, from and after the Effective Time, automatically and without the necessity of presenting the same for exchange, represent that number of whole shares of Common Stock after the Effective Time into which the shares formerly represented by such certificate or book entry position have been reclassified (as well as the right to receive cash in lieu of fractional shares of Common Stock after the Effective Time); provided, however, that each person of record holding a certificate that represented shares of Common Stock that were issued and outstanding immediately prior to the Effective Time shall receive, upon surrender of such certificate, a new certificate evidencing and representing the number of whole shares of Common Stock after the Effective Time into which the shares of Common Stock formerly represented by such certificate shall have been reclassified.

The total number of shares which the Corporation shall have authority to issue is 172,000,000 shares, of which 170,000,000 shall be designated as a class of Common Stock, par value $0.0001 per share (the “Common Stock”), and 2,000,000 shall be designated as a class of Preferred Stock, par value $0.0001 per share (the “Preferred Stock”).

4. This Certificate of Amendment to the Certificate of Incorporation has been duly adopted by the stockholders of the Corporation in accordance with the provisions of Section 242 of the Delaware General Corporation Law.

5. This Certificate of Amendment to the Certificate of Incorporation shall be effective as of 12:01 A.M. Eastern Time on July 1, 2026.

IN WITNESS WHEREOF, this Corporation has caused this Certificate of Amendment of the Certificate of Incorporation to be signed by its President and Chief Executive Officer this 24th day of June, 2026.

/s/ MARK STROBECK

Mark Strobeck, Ph.D.
President and Chief Executive Officer

FAQ

What reverse stock split did Rockwell Medical (RMTI) approve?

Rockwell Medical approved a one-for-ten reverse stock split of its common stock. Every ten existing shares will be reclassified and combined into one new share, with the split becoming effective at 12:01 a.m. Eastern Time on July 1, 2026.

When will Rockwell Medical (RMTI) begin trading on a split-adjusted basis?

Rockwell Medical common stock will begin trading on a split-adjusted basis at the open of trading on July 1, 2026. From that date, shares will reflect the one-for-ten reverse split and will be associated with a new CUSIP number 774374409.

How will Rockwell Medical (RMTI) handle fractional shares in the reverse split?

Rockwell Medical will not issue fractional shares in the reverse split. Instead, stockholders entitled to a fractional share will receive cash equal to the fraction multiplied by the June 30, 2026 Nasdaq closing price, as adjusted for the one-for-ten reverse split ratio.

Does the Rockwell Medical (RMTI) reverse split change par value or authorized shares?

The reverse stock split does not change the $0.0001 par value per share. After the amendment, the Corporation remains authorized to issue 172,000,000 shares in total, including 170,000,000 common shares and 2,000,000 preferred shares under its certificate of incorporation.

What happens to Rockwell Medical (RMTI) equity awards, preferred stock and warrants?

As of the effective time, Rockwell Medical will make proportionate adjustments to equity awards, Series X Convertible Preferred Stock and warrants. Share amounts and applicable exercise or conversion prices will be adjusted so these instruments reflect the one-for-ten reverse stock split consistently.

Will Rockwell Medical (RMTI) change its Nasdaq ticker after the reverse split?

Rockwell Medical will retain its Nasdaq ticker RMTI following the reverse split. Only the CUSIP number for the common stock will change to 774374409 when split-adjusted trading begins on July 1, 2026, while the listing market and symbol remain the same.

Filing Exhibits & Attachments

3 documents

Other Documents

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• EX-101 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT 22.3 KB
• EX-101 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT 12.7 KB