Longeveron medical chief has 2,913 shares withheld

After the withholding, Chief Medical Officer Nataliya Agafonova reported direct ownership of 68,778 Longeveron shares.

Rhea-AI Filing Summary

Longeveron Inc. Chief Medical Officer Nataliya Agafonova had 2,913 shares withheld on October 1, 2026, to satisfy tax obligations in connection with vesting of a restricted stock unit (RSU) award. The reported transaction price was $2.59 per share, and her direct holdings afterward were 68,778 shares. The reported share amounts reflect the one-for-ten reverse stock split undertaken in August 2026.

Insider Trade Summary

Tax Withholding: 2,913 shares

Tax Withholding 1 txn

Insider Agafonova Nataliya

Role Chief Medical Officer

Type	Security	Shares	Price	Value
Tax Withholding	Class A Common Stock F1, F2, F3	2,913	$2.59	$8K

Holdings After Transaction: Class A Common Stock — 68,778 shares (Direct)

Footnotes (3)

1. F1. Shares withheld to satisfy tax obligations in connection with the vesting of a restricted stock unit (RSU) award.
2. F2. Includes RSUs subject to future vesting.
3. F3. Amounts reflect the one-for-ten reverse stock split undertaken by Issuer in August 2026.

Key Figures

Shares withheld: 2,913 shares Reported transaction price: $2.59 per share Direct holdings after transaction: 68,778 shares +1 more

4 metrics

Shares withheld 2,913 shares Withheld on October 1, 2026, to satisfy tax obligations

Reported transaction price $2.59 per share October 1, 2026 transaction

Direct holdings after transaction 68,778 shares After the October 1, 2026 transaction

Reverse stock split One-for-ten Undertaken in August 2026; reported share amounts reflect the split

Key Terms

restricted stock unit (RSU), vesting, reverse stock split

3 terms

restricted stock unit (RSU) financial

"vesting of a restricted stock unit (RSU) award"

A restricted stock unit (RSU) is a promise from a company to give an employee company shares (or cash equal to their value) at a future date if certain conditions are met, such as staying with the company or hitting performance targets. For investors, RSUs matter because when they convert into actual shares they increase the number of shares available and can create selling pressure as employees cash out—think of them as a future paycheck paid in company stock.

vesting financial

"in connection with the vesting of a restricted stock unit"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

reverse stock split technical

"one-for-ten reverse stock split undertaken by Issuer"

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.

FAQ

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

How many LGVN shares were withheld from Chief Medical Officer Nataliya Agafonova?

Chief Medical Officer Nataliya Agafonova had 2,913 shares withheld on October 1, 2026, to satisfy tax obligations connected with vesting of an RSU award. Her direct holdings afterward were 68,778 shares; the reported share amounts reflect the one-for-ten reverse stock split undertaken in August 2026.

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

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Available on EDGAR 10/05/2026 - 06:00 PM Accepted by SEC EDGAR 10/05/2026 - 06:00 PM Learn about SEC filing dates

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^*

Agafonova Nataliya

(Last) (First) (Middle)

1951 NW 7TH AVENUE, SUITE 520

(Street)

MIAMI FLORIDA 33136

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Longeveron Inc. [ LGVN ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/01/2026

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
Class A Common Stock	10/01/2026		F		2,913(1)	D	$2.59	68,778(2)(3)	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. Shares withheld to satisfy tax obligations in connection with the vesting of a restricted stock unit (RSU) award.

2. Includes RSUs subject to future vesting.

3. Amounts reflect the one-for-ten reverse stock split undertaken by Issuer in August 2026.

Remarks:

	/s/ Paul T. Lehr, Attorney-in-fact	10/05/2026
	** 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)