# EDGAR Filing Document

**Accession Number:** 0001721484
**File Stem:** 0001214659-25-014462
**Filing Date:** 2025-10
**Character Count:** 8293
**Document Hash:** f082a28f9bffb63a32c47fb913562b70
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001214659-25-014462.hdr.sgml**: 20251001

**ACCESSION NUMBER**: 0001214659-25-014462

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20250904

**FILED AS OF DATE**: 20251001

**DATE AS OF CHANGE**: 20251001

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Powell James Nathaniel
- **CENTRAL INDEX KEY:** 0002088007

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-40060
- **FILM NUMBER:** 251365873

**MAIL ADDRESS:**
- **STREET 1:** 1951 NW 7TH AVENUE
- **STREET 2:** SUITE 520
- **CITY:** MIAMI
- **STATE:** FL
- **ZIP:** 33136
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Longeveron Inc.
- **CENTRAL INDEX KEY:** 0001721484
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 472174146
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 1951 NW 7TH AVENUE
- **STREET 2:** SUITE 520
- **CITY:** MIAMI
- **STATE:** FL
- **ZIP:** 33136
- **BUSINESS PHONE:** 305-302-7158

**MAIL ADDRESS:**
- **STREET 1:** 1951 NW 7TH AVENUE
- **STREET 2:** SUITE 520
- **CITY:** MIAMI
- **STATE:** FL
- **ZIP:** 33136

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** LONGEVERON LLC
- **DATE OF NAME CHANGE:** 20171101

## Ex-24

```
<pre>
      LIMITED POWER OF ATTORNEY

The undersigned hereby makes, constitutes and appoints each of Paul T. Lehr and
Lisa A. Locklear, and each of their substitutes as General Counsel and Chief
Financial Officer, respectively, of Longeveron Inc., a Delaware corporation (the
"Company"), as the undersigned's true and lawful attorney-in-fact, with full
power and authority as hereinafter described on behalf of and in the name, place
and stead of the undersigned to:
1. 	perform any and all other acts, including filing applicable forms and
applications with the United States Securities and Exchange Commission ("SEC")
to generate, revise or update the undersigned's EDGAR access codes, which in the
discretion of such attorney-in-fact are necessary or desirable for and on behalf
of the undersigned in connection with the foregoing.
2.	prepare, execute, acknowledge, deliver and file Forms 3, 4, and 5 (including
any amendments thereto) with respect to the securities of the Company, with the
SEC, any national securities exchanges and the Company, as considered necessary
or advisable under Section 16(a) of the Securities Exchange Act of 1934 and the
rules and regulations promulgated thereunder, as amended from time to time (the
"Exchange Act");
3. 	seek or obtain, as the undersigned's representative and on the undersigned's
behalf, information on transactions in the Company's securities from any third
party, including brokers, employee benefit plan administrators and trustees, and
the undersigned hereby authorizes any such person to release any such
information to the undersigned and approves and ratifies any such release of
information; and
The undersigned acknowledges that:
1. 	this Limited Power of Attorney authorizes, but does not require, such
attorney-in-fact to act in their discretion on information provided to such
attorney-in-fact without independent verification of such information;
2. 	any documents prepared and/or executed by such attorney-in-fact on behalf of
the undersigned pursuant to this Limited Power of Attorney will be in such form
and will contain such information and disclosure as such attorney-in-fact, in
his discretion, deems necessary or desirable;
3. 	neither the Company nor such attorney-in-fact assumes (i) any liability for
the undersigned's responsibility to comply with the requirements of the Exchange
Act, (ii) any liability of the undersigned for any failure to comply with such
requirements, or (iii) any obligation or liability of the undersigned for profit
disgorgement under Section 16(b) of the Exchange Act; and
4. 	this Limited Power of Attorney does not relieve the undersigned from
responsibility for compliance with the undersigned's obligations under the
Exchange Act, including without limitation the reporting requirements under
Section 16 of the Exchange Act.
The undersigned hereby gives and grants the foregoing attorney-in-fact full
power and authority to do and perform all and every act and thing whatsoever
requisite, necessary or appropriate to be done in and about the foregoing
matters as fully to all intents and purposes as the undersigned might or could
do if present, hereby ratifying all that such attorney-in-fact of, for and on
behalf of the undersigned, or such attorney-in-fact's substitute or substitutes,
shall lawfully do or cause to be done by virtue of this Limited Power of
Attorney.
This Limited Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4 and 5 with respect to the
undersigned's holdings of and transactions in securities issued by the Company,
unless earlier revoked by the undersigned in a signed writing delivered to such
attorney-in-fact.
/s/ James Nathaniel Powell
    </pre>
```

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Powell James Nathaniel<br><sub>(Last) (First) (Middle)</sub><br>1951 NW 7TH AVENUE SUITE 520<br><sub>(Street)</sub><br>MIAMI, FL 33136<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Longeveron Inc. [ LGVN ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2025-09-04 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [ ] 10% Owner<br>[X] Officer (give title below)   [ ] Other (specify below)<br>_Chief Executive Officer_ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |
| Class A Common Stock | 80446<sup>(1)</sup> | D |  |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| Warrant (right to buy) | 2025-08-11 | 2027-08-11 | Class A Common Stock | 44115 | $0.85 | D |  |

---

### Footnotes:

(1) Includes Restricted Stock Units (RSUs) subject to future vesting.

**Remarks:**
Exhibit List - Exhibit 24 Power of Attorney

**Signature:** /s/ Paul Lehr, Attorney-in-fact  
**Date:** 2025-10-01

### Remarks:

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.**