Filing Details

The remainder of this cover page shall be filled out for a reporting persons initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

NAMES OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

Green Park & Golf Ventures II, LLC (see Item 2(a))

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a)  ☐        (b)  ☐

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

Texas

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

-0-

SHARED VOTING POWER

147,502 (see Item 4(a))*

SOLE DISPOSITIVE POWER

-0-

SHARED DISPOSITIVE POWER

147,502 (see Item 4(a))*

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

147,502 (see Item 4(a))*

CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

☐

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

1.4% (see Item 4(b))**

TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

OO

This calculation is based upon (i) 131,697 shares of Common Stock (as defined below) held directly by Lantern 3-19 (as defined below) and (ii) 15,805 shares of Common Stock issuable upon the exercise of outstanding warrants held directly by Lantern 3-19.

This calculation is rounded to the nearest tenth and is based upon 10,519,097 shares of Common Stock issued and outstanding as of February 13, 2021, an amount determined by adding (i) 10,503,292 shares of Common Stock issued and outstanding as of January 14, 2021, as represented in the Prospectus Supplement (as defined below), plus (ii) 15,805 shares of Common Stock issuable upon the exercise of outstanding warrants directly held by Lantern 3-19.

NAMES OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

Green Park & Golf Ventures, LLC (see Item 2(a))

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a)  ☐        (b)  ☐

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

Texas

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

-0-

SHARED VOTING POWER

525,256 (see Item 4(a))*

SOLE DISPOSITIVE POWER

-0-

SHARED DISPOSITIVE POWER

525,256 (see Item 4(a))*

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

525,256 (see Item 4(a))*

CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

☐

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

5.0% (see Item 4(b))**

TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

OO

This calculation is based upon (i) 292,605 shares of Common Stock (as defined below) held directly by GPG LPI (as defined below), (ii) 211,291 shares of Common Stock held directly by HWF II (as defined below), and (iii) 21,360 shares of Common Stock issuable upon the exercise of outstanding warrants held directly by GPG LPI (as defined below).

This calculation is rounded to the nearest tenth and is based upon 10,524,652 shares of Common Stock issued and outstanding as of February 13, 2021, an amount determined by adding (i) 10,503,292 shares of Common Stock issued and outstanding as of January 14, 2021, as represented in the Prospectus Supplement (as defined below), plus (ii) 21,360 shares of Common Stock issuable upon the exercise of outstanding warrants held directly by GPG LPI.

NAMES OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

GPG LPI Investment, LLC (see Item 2(a))

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a)  ☐        (b)  ☐

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

Texas

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

-0-

SHARED VOTING POWER

313,965 (see Item 4(a))*

SOLE DISPOSITIVE POWER

-0-

SHARED DISPOSITIVE POWER

313,965 (see Item 4(a))*

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

313,965 (see Item 4(a))*

CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

☐

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

3.0% (see Item 4(b))**

TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

OO

This calculation is based upon (i) 292,605 shares of Common Stock (as defined below) held directly by GPG LPI (as defined below) and (ii) 21,360 shares of Common Stock issuable upon the exercise of outstanding warrants held directly by GPG LPI.

This calculation is rounded to the nearest tenth and is based upon 10,524,652 shares of Common Stock issued and outstanding as of February 13, 2021, an amount determined by adding (i) 10,503,292 shares of Common Stock issued and outstanding as of January 14, 2021, as represented in the Prospectus Supplement (as defined below), plus (ii) 21,360 shares of Common Stock issuable upon the exercise of outstanding warrants held directly by GPG LPI.

NAMES OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

Lantern 3-19 Investment, LLC (see Item 2(a))

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a)  ☐        (b)  ☐

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

Texas

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

-0-

SHARED VOTING POWER

147,502 (see Item 4(a))*

SOLE DISPOSITIVE POWER

-0-

SHARED DISPOSITIVE POWER

147,502 (see Item 4(a))*

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

147,502 (see Item 4(a))*

CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

☐

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

1.4% (see Item 4(b))**

TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

OO

This calculation is based upon (i) 131,697 shares of Common Stock (as defined below) held directly by Lantern 3-19 (as defined below) and (ii) 15,805 shares of Common Stock issuable upon the exercise of outstanding warrants held directly by Lantern 3-19.

This calculation is rounded to the nearest tenth and is based upon 10,519,097 shares of Common Stock issued and outstanding as of February 13, 2021, an amount determined by adding (i) 10,503,292 shares of Common Stock issued and outstanding as of January 14, 2021, as represented in the Prospectus Supplement (as defined below), plus (ii) 15,805 shares of Common Stock issuable upon the exercise of outstanding warrants held directly by Lantern 3-19.

NAMES OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

Health Wildcatters Fund II, LLC (see Item 2(a))

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a)  ☐        (b)  ☐

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

Texas

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

-0-

SHARED VOTING POWER

211,291 (see Item 4(a))

SOLE DISPOSITIVE POWER

-0-

SHARED DISPOSITIVE POWER

211,291 (see Item 4(a))

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

211,291 (see Item 4(a))

CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

☐

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

2.0% (see Item 4(b))**

TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

OO

This calculation is rounded to the nearest tenth and is based upon 10,503,292 shares of Common Stock (as defined below) issued and outstanding as of February 13, 2021, as represented in the Prospectus Supplement (as defined below).

NAMES OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

Health Wildcatters, LLC (see Item 2(a))

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a)  ☐        (b)  ☐

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

Texas

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

-0-

SHARED VOTING POWER

211,291 (see Item 4(a))*

SOLE DISPOSITIVE POWER

-0-

SHARED DISPOSITIVE POWER

211,291 (see Item 4(a))*

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

211,291 (see Item 4(a))*

CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

☐

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

2.0% (see Item 4(b))**

TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

OO

This amount is based upon 211,291 shares of Common Stock (as defined below) directly held by HWF II (as defined below).

This calculation is rounded to the nearest tenth and is based upon 10,503,292 shares of Common Stock issued and outstanding as of January 14, 2021, as represented in the Prospectus Supplement (as defined below).

NAMES OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

Carl D. Soderstrom (see Item 2(a))

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a)  ☐        (b)  ☐

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

United States

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

-0-

SHARED VOTING POWER

672,758 (see Item 4(a))*

SOLE DISPOSITIVE POWER

-0-

SHARED DISPOSITIVE POWER

672,758 (see Item 4(a))*

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

672,758 (see Item 4(a))*

CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

☐

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

6.4% (see Item 4(b))**

TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

IN

This calculation is based upon (i) 292,605 shares of Common Stock (as defined below) held directly by GPG LPI (as defined below), (ii) 211,291 shares of Common Stock held directly by HWF II (as defined below), (iii) 131,697 shares of Common Stock held directly by Lantern 3-19 (as defined below), (iv) 15,805 shares of Common Stock issuable upon the exercise of outstanding warrants held directly by Lantern 3-19, and (v) 21,360 shares of Common Stock issuable upon the exercise of outstanding warrants held directly by GPG LPI.

This calculation is rounded to the nearest tenth and is based upon 10,540,457 shares of Common Stock issued and outstanding as of February 13, 2021, an amount determined by adding (i) 10,503,292 shares of Common Stock issued and outstanding as of January 14, 2021, as represented in the Prospectus Supplement (as defined below), plus (ii) 15,805 shares of Common Stock issuable upon the exercise of outstanding warrants held directly by Lantern 3-19, plus (iii) 21,360 shares of Common Stock issuable upon the exercise of outstanding warrants held directly by GPG LPI.

NAMES OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

Clay M. Heighten, M.D. (see Item 2(a))

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a)  ☐        (b)  ☐

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

United States

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

-0-

SHARED VOTING POWER

672,758 (see Item 4(a))*

SOLE DISPOSITIVE POWER

-0-

SHARED DISPOSITIVE POWER

672,758 (see Item 4(a))*

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

672,758 (see Item 4(a))*

CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

☐

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

6.4% (see Item 4(b))**

TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

IN

This calculation is based upon (i) 292,605 shares of Common Stock (as defined below) held directly by GPG LPI (as defined below), (ii) 211,291 shares of Common Stock held directly by HWF II (as defined below), (iii) 131,697 shares of Common Stock held directly by Lantern 3-19 (as defined below), (iv) 15,805 shares of Common Stock issuable upon the exercise of outstanding warrants held directly by Lantern 3-19, and (v) 21,360 shares of Common Stock issuable upon the exercise of outstanding warrants held directly by GPG LPI.

This calculation is rounded to the nearest tenth and is based upon 10,540,457 shares of Common Stock issued and outstanding as of February 13, 2021, an amount determined by adding (i) 10,503,292 shares of Common Stock issued and outstanding as of January 14, 2021, as represented in the Prospectus Supplement (as defined below), plus (ii) 15,805 shares of Common Stock issuable upon the exercise of outstanding warrants held directly by Lantern 3-19, plus (iii) 21,360 shares of Common Stock issuable upon the exercise of outstanding warrants held directly by GPG LPI.

NAMES OF REPORTING PERSONS

I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

Gilbert G. Garcia II (see Item 2(a))

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a)  ☐        (b)  ☐

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

United States

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

-0-

SHARED VOTING POWER

147,502 (see Item 4(a))*

SOLE DISPOSITIVE POWER

-0-

SHARED DISPOSITIVE POWER

147,502 (see Item 4(a))*

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

147,502 (see Item 4(a))*

CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)

☐

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

1.4% (see Item 4(b))**

TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

IN

This calculation is based upon (i) 131,697 shares of Common Stock (as defined below) held directly by Lantern 3-19 (as defined below) and (ii) 15,805 shares of Common Stock issuable upon the exercise of outstanding warrants held directly by Lantern 3-19.

This calculation is rounded to the nearest tenth and is based upon 10,519,097 shares of Common Stock issued and outstanding as of February 13, 2021, an amount determined by adding (i) 10,503,292 shares of Common Stock issued and outstanding as of January 14, 2021, as represented in the Prospectus Supplement (as defined below), plus (ii) 15,805 shares of Common Stock issuable upon the exercise of outstanding warrants held directly by Lantern 3-19.

Name of Issuer:

Address of Issuers Principal Executive Offices:

Name of Person Filing:

Address of Principal Business Office or, if none, Residence:

Citizenship:

Title of Class of Securities:

CUSIP Number:

If this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:  ☐

Ownership:

The following table sets forth the amount of Common Stock beneficially owned by each of the Reporting Persons through February 13, 2021:

1. Green Park & Golf Ventures II, LLC

Sole Voting Power

Shared Voting Power

Sole Dispositive Power

Shared Dispositive Power

Aggregate Voting and Dispositive Power

2. Green Park & Golf Ventures, LLC

Sole Voting Power

Shared Voting Power

Sole Dispositive Power

Shared Dispositive Power

Aggregate Voting and Dispositive Power

3. Health Wildcatters, LLC

Sole Voting Power

Shared Voting Power

Sole Dispositive Power

Shared Dispositive Power

Aggregate Voting and Dispositive Power

4. Health Wildcatters Fund II, LLC¹

Sole Voting Power

Shared Voting Power

Sole Dispositive Power

Shared Dispositive Power

Aggregate Voting and Dispositive Power

5. GPG LPI Investment, LLC²

Sole Voting Power

Shared Voting Power

Sole Dispositive Power

Shared Dispositive Power

Aggregate Voting and Dispositive Power

6. Lantern 3-19 Investment, LLC³

Sole Voting Power

Shared Voting Power

Sole Dispositive Power

Shared Dispositive Power

Aggregate Voting and Dispositive Power

7. Carl D. Soderstrom

Sole Voting Power

Shared Voting Power

Sole Dispositive Power

Shared Dispositive Power

Aggregate Voting and Dispositive Power

8. Clay M. Heighten, M.D.

Sole Voting Power

Shared Voting Power

Sole Dispositive Power

Shared Dispositive Power

Aggregate Voting and Dispositive Power

9. Gilbert G. Garcia II

Sole Voting Power

Shared Voting Power

Sole Dispositive Power

Shared Dispositive Power

Aggregate Voting and Dispositive Power

These securities are directly held by HWF II. Carl D. Soderstrom and Clay M. Heighten, M.D. are the managing members of GPG, which is the managing member of HW, which is the managing member of HWF II. Therefore, Carl D. Soderstrom, Clay M. Heighten, M.D., GPG, and HW may be deemed to beneficially own these securities.

These securities are directly held by GPG LPI. Carl D. Soderstrom and Clay M. Heighten, M.D. are the managing members of GPG, which is the managing member GPG LPI. Therefore, Carl D. Soderstrom, Clay M. Heighten, M.D., and GPG may be deemed to beneficially own these securities.

These securities are directly held by Lantern 3-19. Carl D. Soderstrom, Clay M. Heighten, M.D., and Gilbert G. Garcia II are the managing members of GPG II, which is the managing member of Lantern 3-19. Therefore, Carl D. Soderstrom, Clay M. Heighten, M.D., Gilbert G. Garcia II, and GPG II may be deemed to beneficially own these securities.

With respect to the amount of shares of Common Stock beneficially owned by GPG II, this calculation is rounded to the nearest tenth and is based upon 10,519,097 shares of Common Stock issued and outstanding as of February 13, 2021, an amount determined by adding (i) 10,503,292 shares of Common Stock issued and outstanding as of January 14, 2021, as represented in the Prospectus Supplement on Form 424(b)(4) (the Prospectus Supplement) filed with the Securities and Exchange Commission (the SEC) on January 15, 2021 (File No. 001-39318), plus (ii) 15,805 shares of Common Stock issuable upon the exercise of outstanding warrants directly held by Lantern 3-19.

As described in the Prospectus Supplement, the amount of shares of Common Stock issued and outstanding excludes (i) an over-allotment option granted to the underwriters under the Prospectus Supplement to purchase up to 642,856 additional shares of Common Stock, (ii) 820,608 shares of Common Stock issuable upon exercise of outstanding stock options, (iii) 550,099 shares of Common Stock reserved under the Issuers Amended and Restated 2018 Equity Incentive Plan, and (iv) shares of Common Stock issuable upon the exercise of outstanding warrants (except for those beneficially owned by any of the Reporting Persons and encompassed within this Schedule 13G).

Ownership of Five Percent or Less of a Class.

Ownership of More Than Five Percent on Behalf of Another Person.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company.

Identification and Classification of Members of the Group.

Notice of Dissolution of Group.

Certification.