Form D

FORM D

Notice of Exempt Offering of Securities

UNITED STATES SECURITIES
AND EXCHANGE COMMISSION
Washington, D.C.

OMB APPROVAL

OMB Number: 3235-0076

Estimated Average burden hours per response: 4.0

1. Issuer's Identity

CIK (Filer ID Number)

Previous Name(s)

None

Entity Type

0001721484

LONGEVERON LLC

Corporation

Limited Partnership

Limited Liability Company

General Partnership

Business Trust

Other

Name of Issuer

Longeveron Inc.

Jurisdiction of Incorporation/Organization

DELAWARE

Year of Incorporation/Organization

Over Five Years Ago

Within Last Five Years (Specify Year)

Yet to Be Formed

2. Principal Place of Business and Contact Information

Name of Issuer

Longeveron Inc.

Street Address 1

Street Address 2

1951 NW 7TH AVENUE

SUITE 520

City

State/Province/Country

ZIP/Postal Code

Phone No. of Issuer

MIAMI

FLORIDA

33136

305-909-0840

3. Related Persons

Last Name

First Name

Middle Name

Willard

Stephen

Street Address 1

Street Address 2

1951 NW 7th Avenue

Suite 520

City

State/Province/Country

ZIP/Postal Code

Miami

FLORIDA

33136

Relationship:

Executive Officer

Director

Promoter

Clarification of Response (if Necessary)

Last Name

First Name

Middle Name

Hare

Joshua

Street Address 1

Street Address 2

1951 NW 7th Avenue

Suite 520

City

State/Province/Country

ZIP/Postal Code

Miami

FLORIDA

33136

Relationship:

Executive Officer

Director

Promoter

Clarification of Response (if Necessary)

Last Name

First Name

Middle Name

Locklear

Lisa

Street Address 1

Street Address 2

1951 NW 7th Avenue

Suite 520

City

State/Province/Country

ZIP/Postal Code

Miami

FLORIDA

33136

Relationship:

Executive Officer

Director

Promoter

Clarification of Response (if Necessary)

Last Name

First Name

Middle Name

Agafonova

Nataliya

Street Address 1

Street Address 2

1951 NW 7th Avenue

Suite 520

City

State/Province/Country

ZIP/Postal Code

Miami

FLORIDA

33136

Relationship:

Executive Officer

Director

Promoter

Clarification of Response (if Necessary)

Last Name

First Name

Middle Name

Lehr

Paul

Street Address 1

Street Address 2

1951 NW 7th Avenue

Suite 520

City

State/Province/Country

ZIP/Postal Code

Miami

FLORIDA

33136

Relationship:

Executive Officer

Director

Promoter

Clarification of Response (if Necessary)

Last Name

First Name

Middle Name

Blass

Devin

Street Address 1

Street Address 2

1951 NW 7th Avenue

Suite 520

City

State/Province/Country

ZIP/Postal Code

Miami

FLORIDA

33136

Relationship:

Executive Officer

Director

Promoter

Clarification of Response (if Necessary)

Last Name

First Name

Middle Name

Soffer

Rock

Street Address 1

Street Address 2

1951 NW 7th Avenue

Suite 520

City

State/Province/Country

ZIP/Postal Code

Miami

FLORIDA

33136

Relationship:

Executive Officer

Director

Promoter

Clarification of Response (if Necessary)

Last Name

First Name

Middle Name

Ungaro

Ursula

Street Address 1

Street Address 2

1951 NW 7th Avenue

Suite 520

City

State/Province/Country

ZIP/Postal Code

Miami

FLORIDA

33136

Relationship:

Executive Officer

Director

Promoter

Clarification of Response (if Necessary)

Last Name

First Name

Middle Name

Hajjar

Roger

Joseph

Street Address 1

Street Address 2

1951 NW 7th Avenue

Suite 520

City

State/Province/Country

ZIP/Postal Code

Miami

FLORIDA

33136

Relationship:

Executive Officer

Director

Promoter

Clarification of Response (if Necessary)

Last Name

First Name

Middle Name

Paletta, Jr.

George

Street Address 1

Street Address 2

1951 NW 7th Avenue

Suite 520

City

State/Province/Country

ZIP/Postal Code

Miami

FLORIDA

33136

Relationship:

Executive Officer

Director

Promoter

Clarification of Response (if Necessary)

4. Industry Group

Agriculture

Banking & Financial Services

Commercial Banking

Insurance

Investing

Investment Banking

Pooled Investment Fund

Other Banking & Financial Services

Business Services

Energy

Coal Mining

Electric Utilities

Energy Conservation

Environmental Services

Oil & Gas

Other Energy

Health Care

Biotechnology

Health Insurance

Hospitals & Physicians

Pharmaceuticals

Other Health Care

Manufacturing

Real Estate

Commercial

Construction

REITS & Finance

Residential

Other Real Estate

Retailing

Restaurants

Technology

Computers

Telecommunications

Other Technology

Travel

Airlines & Airports

Lodging & Conventions

Tourism & Travel Services

Other Travel

Other

5. Issuer Size

Revenue Range

Aggregate Net Asset Value Range

No Revenues

No Aggregate Net Asset Value

$1 - $1,000,000

$1 - $5,000,000

$1,000,001 - $5,000,000

$5,000,001 - $25,000,000

$25,000,001 - $50,000,000

$25,000,001 - $100,000,000

$50,000,001 - $100,000,000

Over $100,000,000

Decline to Disclose

Not Applicable

6. Federal Exemption(s) and Exclusion(s) Claimed (select all that apply)

Rule 504(b)(1) (not (i), (ii)
or (iii))

Rule 506(b)

Rule 504 (b)(1)(i)

Rule 506(c)

Rule 504 (b)(1)(ii)

Securities Act Section 4(a)(5)

Rule 504 (b)(1)(iii)

Investment Company Act Section 3(c)

7. Type of Filing

New Notice

Date of First Sale

2026-03-11

First Sale Yet to Occur

Amendment

8. Duration of Offering

Does the Issuer intend this offering to last more than one year?

Yes

9. Type(s) of Securities Offered (select all that apply)

Pooled Investment Fund Interests

Equity

Tenant-in-Common Securities

Debt

Mineral Property Securities

Option, Warrant or Other Right to Acquire Another Security

Security to be Acquired Upon Exercise of Option, Warrant or Other Right to Acquire Security

Other (describe)

An interest in 50% of proceeds received (after deducting fees) from the potential future sale of a Rare Pediatric Disease Priority Review Voucher, to the extent received from the U.S. FDA in connection with the Company's laromestrocel program for HLHS.

10. Business Combination Transaction

Is this offering being made in connection with a business combination transaction, such as a merger, acquisition or exchange offer?

Yes

Clarification of Response (if Necessary)

11. Minimum Investment

Minimum investment accepted from any outside investor

USD

12. Sales Compensation

Recipient

Recipient CRD Number

None

H.C. Wainwright & Co., LLC

375

(Associated) Broker or Dealer

None

(Associated) Broker or Dealer CRD Number

None

Charles Worthman

516096

Street Address 1

Street Address 2

430 Park Avenue

4th Floor

City

State/Province/Country

ZIP/Postal Code

New York

NEW YORK

10022

State(s) of Solicitation

All States

Foreign/Non-US

CALIFORNIA

COLORADO

NEW YORK

TEXAS

Recipient

Recipient CRD Number

None

H.C. Wainwright & Co., LLC

375

(Associated) Broker or Dealer

None

(Associated) Broker or Dealer CRD Number

None

Noam Rubinstein

4070245

Street Address 1

Street Address 2

430 Park Avenue

4th Floor

City

State/Province/Country

ZIP/Postal Code

New York

NEW YORK

10022

State(s) of Solicitation

All States

Foreign/Non-US

CALIFORNIA

COLORADO

NEW YORK

TEXAS

Recipient

Recipient CRD Number

None

H.C. Wainwright & Co., LLC

375

(Associated) Broker or Dealer

None

(Associated) Broker or Dealer CRD Number

None

Craig Schwabe

3137679

Street Address 1

Street Address 2

430 Park Avenue

4th Floor

City

State/Province/Country

ZIP/Postal Code

New York

NEW YORK

10022

State(s) of Solicitation

All States

Foreign/Non-US

CALIFORNIA

COLORADO

NEW YORK

TEXAS

Recipient

Recipient CRD Number

None

H.C. Wainwright & Co., LLC

375

(Associated) Broker or Dealer

None

(Associated) Broker or Dealer CRD Number

None

Michael Vasinkevich

2843810

Street Address 1

Street Address 2

430 Park Avenue

4th Floor

City

State/Province/Country

ZIP/Postal Code

New York

NEW YORK

10022

State(s) of Solicitation

All States

Foreign/Non-US

CALIFORNIA

COLORADO

NEW YORK

TEXAS

13. Offering and Sales Amounts

Total Offering Amount

33515000

USD

Indefinite

Total Amount Sold

15890000

USD

Total Remaining to be Sold

17625000

USD

Indefinite

Clarification of Response (if Necessary)

Total offering amount: purchase price of shares of Class A common stock, Series A Preferred Stock, an interest in future proceeds from a potential future PRV sale, proceeds due to Company assuming cash exercise of all warrants issued to placement agent

14. Investors

Select if securities in the offering have been or may be sold to persons who do not qualify as accredited investors,
Number of such non-accredited investors who already have invested in the offering

Regardless of whether securities in the offering have been or may be sold to persons who do not qualify as accredited investors, enter the total number of investors who already have invested in the offering:

15. Sales Commissions & Finders’ Fees Expenses

Provide separately the amounts of sales commissions and finders' fees expenses, if any. If the amount of an expenditure is not known, provide an estimate and check the box next to the amount.

Sales Commissions

2224600

USD

Estimate

Finders' Fees

USD

Estimate

Clarification of Response (if Necessary)

At initial closing, placement agent received $1,112,300.01 & warrants to purchase up to 2,019,231 shares of Common Stock exercisable at $0.65 per share, among other items. Contingent upon a second closing, placement agent will receive an identical comp.

16. Use of Proceeds

Provide the amount of the gross proceeds of the offering that has been or is proposed to be used for payments to any of the persons required to be named as executive officers, directors or promoters in response to Item 3 above. If the amount is unknown, provide an estimate and check the box next to the amount.

USD

Estimate

Clarification of Response (if Necessary)

Signature and Submission

Please verify the information you have entered and review the Terms of Submission below before signing and clicking SUBMIT below to file this notice.

Terms of Submission

In submitting this notice, each Issuer named above is:

Notifying the SEC and/or each State in which this notice is filed of the offering of securities described and undertaking to furnish them, upon written request, the information furnished to offerees.

Irrevocably appointing each of the Secretary of the SEC and, the Securities Administrator or other legally designated officer of the State in which the Issuer maintains its principal place of business and any State in which this notice is filed, as its agents for service of process, and agreeing that these persons may accept service on its behalf, of any notice, process or pleading, and further agreeing that such service may be made by registered or certified mail, in any Federal or state action, administrative proceeding, or arbitration brought against it in any place subject to the jurisdiction of the United States, if the action, proceeding or arbitration (a) arises out of any activity in connection with the offering of securities that is the subject of this notice, and (b) is founded, directly or indirectly, upon the provisions of: (i) the Securities Act of 1933, the Securities Exchange Act of 1934, the Trust Indenture Act of 1939, the Investment Company Act of 1940, or the Investment Advisers Act of 1940, or any rule or regulation under any of these statutes, or (ii) the laws of the State in which the issuer maintains its principal place of business or any State in which this notice is filed.

Certifying that, if the issuer is claiming a Regulation D exemption for the offering, the issuer is not disqualified from relying on Rule 504 or Rule 506 for one of the reasons stated in Rule 504(b)(3) or Rule 506(d).

Each Issuer identified above has read this notice, knows the contents to be true, and has duly caused this notice to be signed on its behalf by the undersigned duly authorized person.

For signature, type in the signer's name or other letters or characters adopted or authorized as the signer's signature.

Issuer

Signature

Name of Signer

Title

Date

Longeveron Inc.

/s/ Lisa A. Locklear

Lisa A. Locklear

Chief Financial Officer

2026-03-25