Revelation Biosciences (REVB) Form 4 Petra Acquisition / ANDREAS TYPALDOS ownership change

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

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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^*

TYPALDOS ANDREAS

(Last) (First) (Middle)

C/O PETRA ACQUISITION, INC.

5 WEST 21 ST.

(Street)

NEW YORK NY 10010

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Petra Acquisition Inc. [ PAIC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
X	Officer (give title below)		Other (specify below)
Chief Executive Officer

3. Date of Earliest Transaction (Month/Day/Year)
10/07/2020

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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

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
Redeemable Warrant(2)	(3)	10/16/2020		J		83,446		(4)	(5)	Common Stock	83,446	$1	3,233,446	I	See Footnote(1)

Explanation of Responses:

1. The reporting person is a member of Petra Investment Holdings, LLC ("Sponsor"). He disclaims any pecuniary interest in the securities except to the extent of his ownership interest in Petra Investment Holdings, LLC.

2. Includes securities underlying private warrants of the Issuer. The purchase of these warrants was made on a private placement basis and was consummated pursuant to the Sponsor's Subscription Agreement for Private Warrants, dated October 7, 2020, simultaneously with the underwriters partial exercise of their over-allotment option on October 16, 2020 in connection with the Issuer's initial public offering.

3. Each whole warrant entitles the holder to purchase one share of common stock at a price of $11.50 per share, subject to adjustment in the event of certain capital-raising transactions.

4. Each warrant will become exercisable on the later of 30 days after the completion of the Issuer's initial business combination or October 7, 2021.

5. Each warrant will expire five years after the completion of the Issuer's initial business combination.

	/s/ Andreas Typaldos	10/21/2020
	** 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).
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