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* Tumulty James (Last) (First) (Middle) 360 MADISON AVENUE, 20TH FLOOR (Street) NEW YORK CITY NY 10017 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 10/27/2021	3. Issuer Name and Ticker or Trading Symbol Seaport Calibre Materials Acquisition Corp. [ SCMA ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 10% Owner X Officer (give title below) Other (specify below) Chief Executive Officer	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)

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
Class B Common Stock	(1)	(1)	Class A Common Stock	115,494(2)	(1)	D
Class B Common Stock	(1)	(1)	Class A Common Stock	1,614,158(2)(3)	(1)	I	See footnote(2)

Explanation of Responses:

1. Shares of Class B Common Stock will automatically convert into shares of the Issuer's Class A Common Stock at the time of the Issuer's initial business combination on a one-for-one basis, subject to adjustment, as described under the heading "Description of Securities" in the Issuer's registration statement on form S-1 (File No. 333-258024) (the "Registration Statement") and have no expiration date.

2. Calibre Sponsor Sub, LLC ("Calibre Sub") is the record holder of the shares of Class B common stock reported herein. Calibre Group, LLC ("Calibre") is the Managing Member of Calibre Sub and has voting and investment discretion with respect to the common stock held of record by Calibre Sub. Mr. Tumulty is co-Manager of Calibre with Ed Siegel. Each of Calibre and Messrs. Tumulty and Siegel disclaim beneficial ownership of the reported securities other than to the extent of any pecuniary interest they may have therein, directly or indirectly.

3. The shares of Class B common stock beneficially owned by the reporting person includes up to 15,065 shares held directly by Mr. Tumulty and 210,542 shares held by Calibre Sub subject to forfeiture to the extent the underwriters of the initial public offering of the Issuer's securities do not exercise in full their over-allotment option as described in the Registration Statement.

	/s/ Jim Tumulty	10/27/2021
	** 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 5 (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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