Altimar Acquisition Corp. III (ATAQF) Form 3 Initial statement of insider ownership

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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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1. Name and Address of Reporting Person^*

BARCLAYS PLC

(Last) (First) (Middle)

1 CHURCHILL PLACE

CANARY WHARF

(Street)

LONDON X0 E14 5HP

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
03/09/2023

3. Issuer Name and Ticker or Trading Symbol
Altimar Acquisition Corp. III [ ATAQ ]

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

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

5. 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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Class A Ordinary Share, $0.0001 par value per share	492,540	I	By Barclays Bank PLC

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Redeemable Warrants	12/31/2028	12/31/2028	Class A Ordinary Share	90,164	11.5	D

Explanation of Responses:

Remarks:

(a) Beneficially owned Class A ordinary shares and redeemable warrants are comprised in Units, each consisting of one class A ordinary share and one-fourth of one redeemable warrant (b) Name of Person Filing: (1) Barclays PLC (2) Barclays Bank PLC (controlled by Barclays PLC) (c) Address of Principal Business Office or, if non, Residence: (1) Barclays PLC 1 Churchill Place London, E14 5HP, England (2) Barclays Bank PLC 1 Churchill Place London, E14 5HP, England (d) The redeemable warrants will become exercisable on the later of 30 days after the completion of the issuer's initial business combination and 12 months from the closing of the initial public offering of the issuer's securities. The redeemable warrants will expire five years after the completion of the issuer's initial business combination or earlier upon redemption by or liquidation of the issuer, as described in the prospectus for the issuer's initial public offering.

	Suejean Mott	03/31/2023
	** Signature of Reporting Person	Date
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