RMTI SVP Hunter Disposes 2,868 Shares Under 10b5-1 Plan

Rhea-AI Filing Summary

Insider sale under a trading plan: Senior Vice President and Chief Operating Officer Heather Hunter reported a sale of 2,868 shares of Rockwell Medical, Inc. (RMTI) on 10/01/2025 at a price of $1.19 per share, leaving her with 135,391 shares beneficially owned after the transaction. The filing states the sale was executed under a Rule 10b5-1 trading plan adopted on 12/13/2024, which creates an affirmative defense for scheduled insider trades.

The Form 4 was signed by an attorney-in-fact on 10/08/2025 and includes a remark that the filing is late due to administrative delays obtaining EDGAR codes. No derivative transactions or other non‑derivative purchases were reported on this form.

Positive

• Transaction executed under a Rule 10b5-1 trading plan, which provides an affirmative defense for pre‑planned insider trades
• Post-sale ownership remains substantial at 135,391 shares, indicating continued insider exposure to company performance

Negative

• Late Form 4 filing due to administrative delays in obtaining EDGAR codes, which is a compliance lapse
• Insider disposed of shares (2,868 at $1.19), reducing immediate insider holdings

Insights

Corporate Governance Analyst

Scheduled sale under a 10b5-1 plan; late filing noted.

The sale of 2,868 shares at $1.19 was executed under a Rule 10b5-1 plan adopted on 12/13/2024, which typically indicates pre‑planned disposition rather than opportunistic selling. Using a 10b5-1 plan can reduce questions about trading timing because terms are set in advance.

The filing was submitted late, with a signature dated 10/08/2025 and an explicit remark about administrative delays obtaining EDGAR codes. For governance reviewers, the timely filing of Section 16 reports is a compliance control; repeated delays can raise oversight questions. Monitor subsequent Form 4s for pattern consistency over the next 12 months.

Insider Trade Summary

Net Seller: 2,868 shares ($3,413)

Net Sell 1 txn

Insider Hunter Heather

Role SVP, Chief Operating Officer

Sold 2,868 shs ($3K)

Type	Security	Shares	Price	Value
Sale	Common Stock	2,868	$1.19	$3K

Holdings After Transaction: Common Stock — 135,391 shares (Direct)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

Accepted by SEC EDGAR 10/08/2025 - 07:48 PM Learn about SEC filing dates

FAQ

What did Heather Hunter (RMTI) report on Form 4?

The report shows a sale of 2,868 shares on 10/01/2025 at $1.19 per share, leaving 135,391 shares beneficially owned.

Was the insider sale part of a pre-arranged plan for RMTI?

Yes. The filing states the sale was executed pursuant to a Rule 10b5-1 trading plan adopted on 12/13/2024.

When was the Form 4 signed and filed for this RMTI transaction?

The Form 4 was signed by an attorney-in-fact on 10/08/2025. The transaction date is 10/01/2025.

Are there any derivative transactions reported by Heather Hunter on this Form 4?

No. The filing shows only the non‑derivative sale of common stock; no derivative securities were reported.

Did the filing disclose why it was late?

Yes. The remarks state the Form 4 is being filed late due to administrative delays in obtaining the Reporting Person's EDGAR codes.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Hunter Heather

(Last) (First) (Middle)

C/O ROCKWELL MEDICAL, INC.

30142 WIXOM ROAD

(Street)

WIXOM MI 48393

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ROCKWELL MEDICAL, INC. [ RMTI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, Chief Operating Officer

3. Date of Earliest Transaction (Month/Day/Year)
10/01/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	10/01/2025		S(1)		2,868	D	$1.19	135,391	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 13, 2024.

Remarks:

This Form 4 is being filed late due to administrative delays in obtaining the Reporting Person's EDGAR codes.

	/s/ Megan Timmins, Attorney-in-Fact for Heather Hunter	10/08/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.