Longeveron (NASDAQ: LGVN) CTO reports RSU tax-withholding of 8,633 shares

Rhea-AI Filing Summary

Longeveron Inc. executive Devin Blass, CTO & SVP of CMC, reported a routine share disposition related to taxes rather than an open-market trade. On the vesting of a restricted stock unit award, 8,633 shares of Class A Common Stock were withheld at $1.12 per share to satisfy tax obligations. After this tax-withholding event, Blass directly holds 191,543 shares of Class A Common Stock, including RSUs that remain subject to future vesting.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Blass Devin

Role CTO & SVP of CMC

Type	Security	Shares	Price	Value
Tax Withholding	Class A Common Stock	8,633	$1.12	$10K

Holdings After Transaction: Class A Common Stock — 191,543 shares (Direct)

Footnotes (1)

1. Shares withheld to satisfy tax obligations in connection with the vesting of a restricted stock unit (RSU) award. Includes RSUs subject to future vesting.

Key Figures

Shares withheld for taxes: 8,633 shares Withholding price per share: $1.12 per share Shares held after transaction: 191,543 shares

3 metrics

Shares withheld for taxes 8,633 shares Tax-withholding disposition on RSU vesting

Withholding price per share $1.12 per share Value used for tax-withholding shares

Shares held after transaction 191,543 shares Direct Class A Common holdings following tax withholding

Key Terms

restricted stock unit (RSU), tax-withholding disposition, Class A Common Stock

3 terms

restricted stock unit (RSU) financial

"in connection with 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.

tax-withholding disposition financial

"transaction_action: "tax-withholding disposition" for 8,633 shares"

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

Class A Common Stock financial

"security_title: "Class A Common Stock""

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

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^*

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)
04/01/2026

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	04/01/2026		F		8,633(1)	D	$1.12	191,543(2)	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.

Remarks:

	/s/ Paul T. Lehr, Attorney-in-fact	04/03/2026
	** 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 did Longeveron (LGVN) executive Devin Blass report in this Form 4?

Devin Blass reported a tax-related share disposition, not an open-market trade. Longeveron withheld 8,633 Class A Common shares at $1.12 each to cover tax obligations from vesting restricted stock units, a routine compensation-related event.

Were Longeveron (LGVN) shares sold on the market in this Form 4?

No open-market sale occurred in this Form 4. The 8,633 Longeveron Class A Common shares were withheld by the company to satisfy tax obligations from RSU vesting, a standard non-discretionary tax-withholding disposition.

How many Longeveron (LGVN) shares were withheld for taxes for Devin Blass?

Longeveron withheld 8,633 shares of Class A Common Stock at $1.12 per share for Devin Blass. These shares covered tax obligations triggered by the vesting of a restricted stock unit award granted as part of his compensation.

How many Longeveron (LGVN) shares does Devin Blass hold after this Form 4?

After the tax-withholding transaction, Devin Blass directly holds 191,543 Longeveron Class A Common shares. This total includes shares underlying restricted stock units that remain subject to future vesting conditions under his equity awards.

What does the F transaction code mean in the Longeveron (LGVN) Form 4?

The F code indicates a tax-withholding disposition. In this Longeveron Form 4, 8,633 shares were delivered back to the issuer to pay tax liabilities arising from restricted stock unit vesting rather than being sold in the open market.