Longeveron CTO has 2,520 shares withheld for taxes

The reported direct position after the withholding was 68,653 shares, including RSUs subject to future vesting.

Rhea-AI Filing Summary

Longeveron Inc. reported that its CTO & SVP of CMC, Devin Blass, had 2,520 shares of Class A Common Stock withheld on October 1, 2026, to satisfy tax obligations tied to vesting of a restricted stock unit (RSU) award. The reported price was $2.59 per share. His direct holdings after the transaction were 68,653 shares, including RSUs subject to future vesting. The reported share amounts reflect the one-for-ten reverse stock split undertaken in August 2026.

Insider Trade Summary

Tax Withholding: 2,520 shares

Tax Withholding 1 txn

Insider Blass Devin

Role CTO & SVP of CMC

Type	Security	Shares	Price	Value
Tax Withholding	Class A Common Stock F1, F2, F3	2,520	$2.59	$7K

Holdings After Transaction: Class A Common Stock — 68,653 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 for tax liability: 2,520 shares Reported price per share: $2.59 per share Direct holdings after transaction: 68,653 shares +1 more

4 metrics

Shares withheld for tax liability 2,520 shares Withheld on October 1, 2026, in connection with RSU vesting

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

Direct holdings after transaction 68,653 shares Includes RSUs subject to future vesting

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

"the 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

"RSUs subject to future vesting"

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 financial

"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 Devin Blass?

Devin Blass had 2,520 shares of Longeveron Class A Common Stock withheld on October 1, 2026, to satisfy tax obligations tied to vesting of an RSU award. The reported price was $2.59 per share.

What were Devin Blass's LGVN holdings after the withholding?

His reported direct holdings were 68,653 shares after the transaction, including RSUs subject to future vesting. 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^*

Blass Devin

(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)
	CTO & SVP of CMC

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		2,520(1)	D	$2.59	68,653(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)