Longeveron (LGVN) CTO Devin Blass receives 250,000 RSU share award

Rhea-AI Filing Summary

Longeveron Inc. reported that CTO & SVP of CMC Devin Blass acquired 250,000 shares of Class A Common Stock on a grant/award basis. The shares were awarded as time-based vesting Restricted Stock Units, and total direct holdings increased to 441,543 shares, including RSUs 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
Grant/Award	Class A Common Stock	250,000	$0.00	--

Holdings After Transaction: Class A Common Stock — 441,543 shares (Direct, null)

Footnotes (1)

1. Represents the award of time-based vesting Restricted Stock Units (RSUs). Includes RSUs subject to future vesting.

Key Figures

RSU grant size: 250,000 shares Grant price: $0.0000 per share Shares held after grant: 441,543 shares

3 metrics

RSU grant size 250,000 shares Time-based vesting RSUs awarded on May 1, 2026

Grant price $0.0000 per share Compensation award, not open-market purchase

Shares held after grant 441,543 shares Total direct Class A Common Stock holdings following transaction

Key Terms

Restricted Stock Units (RSUs), time-based vesting, Class A Common Stock

3 terms

Restricted Stock Units (RSUs) financial

"Represents the award of time-based vesting Restricted Stock Units (RSUs)."

Restricted stock units (RSUs) are a type of company promise to give employees shares of stock in the future, usually after certain conditions like working for a set time. They are like a gift promised today that you receive later, which can become valuable if the company's stock price goes up. RSUs matter because they are a way companies reward employees and can be a significant part of compensation.

time-based vesting financial

"Represents the award of time-based vesting Restricted Stock Units (RSUs)."

Time-based vesting is a schedule that gives employees or contractors ownership of granted stock or options gradually as they remain with a company, like unlocking rewards in a loyalty program the longer you stick around. For investors, it matters because it affects future share supply, management incentives and staff retention — all of which can influence company performance and dilution of existing shareholders.

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)
05/01/2026

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	05/01/2026		A		250,000(1)	A	$0	441,543(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. Represents the award of time-based vesting Restricted Stock Units (RSUs).

2. Includes RSUs subject to future vesting.

Remarks:

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

FAQ

What insider transaction did Longeveron (LGVN) report for Devin Blass?

Longeveron reported that CTO & SVP of CMC Devin Blass received a grant of 250,000 shares of Class A Common Stock. The award was in the form of time-based vesting Restricted Stock Units, increasing his total direct holdings to 441,543 shares after the transaction.

Was the Devin Blass Longeveron (LGVN) transaction a market purchase or sale?

The transaction was not a market trade. Devin Blass acquired 250,000 shares through a grant or award, coded as an “A” transaction, representing time-based vesting RSUs. No open-market purchase or sale price was involved, and the shares were granted at a price of $0.0000 per share.

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

After the reported grant, Devin Blass directly holds 441,543 shares of Longeveron Class A Common Stock. This total includes Restricted Stock Units subject to future vesting, as noted in the footnotes, reflecting both currently vested and unvested equity awards under his compensation.

What does the 250,000-share RSU grant mean for Longeveron (LGVN) management incentives?

The 250,000-share grant to Devin Blass represents time-based vesting RSUs, aligning part of his compensation with Longeveron equity. Because the RSUs vest over time, they encourage continued service and link a portion of executive rewards to the company’s long-term share performance.

What is the significance of the $0.0000 price on the Longeveron (LGVN) Form 4 grant?

The $0.0000 per share entry indicates the shares were awarded as compensation rather than bought in the open market. For Restricted Stock Units, the executive does not pay a purchase price; instead, shares are delivered as they vest according to the company’s equity award terms.