KORU Medical (KRMD) CTO acquires 5,000 shares in open-market buy

Rhea-AI Filing Summary

KORU Medical Systems, Inc. Chief Technology Officer Eric Schiller purchased Common Stock in the open market. On May 18, 2026, he bought 5,000 shares at an average price of $3.9125 per share. Following this transaction, he directly owns 5,000 shares of KORU Medical Systems common stock.

Insider Trade Summary

Net Buyer: 5,000 shares ($19,563)

Net Buy 1 txn

Insider Schiller Eric

Role Chief Technology Officer

Bought 5,000 shs ($20K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	5,000	$3.9125	$20K

Holdings After Transaction: Common Stock — 5,000 shares (Direct, null)

Footnotes (1)

Key Figures

Shares purchased: 5,000 shares Purchase price: $3.9125 per share Shares owned after transaction: 5,000 shares +1 more

4 metrics

Shares purchased 5,000 shares Open-market purchase of Common Stock on May 18, 2026

Purchase price $3.9125 per share Average price for May 18, 2026 open-market buy

Shares owned after transaction 5,000 shares Direct holdings following the May 18, 2026 purchase

Net buy shares 5,000 shares Net result of reported Form 4 transactions

Key Terms

open-market purchase, Common Stock, Form 4

3 terms

open-market purchase financial

"transaction_action: open-market purchase"

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

Common Stock financial

"security_title: Common Stock"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

Form 4 Insider Transactions: What Each Field Means →

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).

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^*

Schiller Eric

(Last) (First) (Middle)

C/O KORU MEDICAL SYSTEMS, INC.

100 CORPORATE DRIVE

(Street)

MAHWAH NEW JERSEY 07430

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
KORU Medical Systems, Inc. [ KRMD ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Technology Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/18/2026

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

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

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

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	05/18/2026		P		5,000	A	$3.9125	5,000	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:

Remarks:

The filing of this statement shall not be construed as an admission (a) that the person filing this statement is, for the purposes of Section 16 of the Securities Exchange Act of 1934, as amended, the beneficial owner of any equity securities covered by this statement, or (b) that this statement is legally required to be filed by such person. Power of Attorney has been previously filed.

	/s/ Thomas Adams Attorney-In-Fact	05/20/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did KRMD CTO Eric Schiller report on this Form 4?

Eric Schiller reported an open-market purchase of KORU Medical Systems Common Stock. He bought 5,000 shares on May 18, 2026 at an average price of $3.9125 per share, and now directly holds 5,000 shares after the transaction.

How many KORU Medical Systems (KRMD) shares did the CTO buy and at what price?

The CTO purchased 5,000 shares of KORU Medical Systems Common Stock. The reported average purchase price was $3.9125 per share, reflecting an open-market transaction executed on May 18, 2026 and disclosed through this Form 4 insider filing.

What is Eric Schiller’s total KRMD shareholding after this Form 4 transaction?

After the reported transaction, Eric Schiller directly owns 5,000 shares of KORU Medical Systems Common Stock. The Form 4 shows these 5,000 shares as his total direct holdings following the May 18, 2026 open-market purchase of the same amount.

Was the KRMD CTO’s Form 4 transaction a buy or a sell?

The Form 4 reports a buy transaction by the KRMD CTO. It is classified as an open-market purchase (transaction code P), where he acquired 5,000 shares of Common Stock at an average price of $3.9125 per share on May 18, 2026.

Does the KRMD Form 4 filing show any derivative securities for the CTO?

This Form 4 does not list any derivative security transactions for the CTO. The reported activity involves only non-derivative Common Stock, specifically an open-market purchase of 5,000 shares, with no options, warrants, or other derivatives reported in the filing’s transaction summary.