# EDGAR Filing Document

**Accession Number:** 0001692507
**File Stem:** 0001172661-23-000442
**Filing Date:** 2023-2
**Character Count:** 16570
**Document Hash:** 05a89a9e29ad8f73f802f8a306e3a3d0
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001172661-23-000442.hdr.sgml**: 20230206

**ACCESSION NUMBER**: 0001172661-23-000442

**CONFORMED SUBMISSION TYPE**: SC 13G/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230206

**DATE AS OF CHANGE**: 20230203

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Seaport Calibre Materials Acquisition Corp.
- **CENTRAL INDEX KEY:** 0001863428
- **STANDARD INDUSTRIAL CLASSIFICATION:** BLANK CHECKS [6770]
- **IRS NUMBER:** 863426874
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SC 13G/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-92978
- **FILM NUMBER:** 23587684

**BUSINESS ADDRESS:**
- **STREET 1:** 360 MADISON AVENUE, 20TH FLOOR
- **CITY:** NEW YORK CITY
- **STATE:** NY
- **ZIP:** 10017
- **BUSINESS PHONE:** 212-616-7700

**MAIL ADDRESS:**
- **STREET 1:** 360 MADISON AVENUE, 20TH FLOOR
- **CITY:** NEW YORK CITY
- **STATE:** NY
- **ZIP:** 10017
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Centiva Capital, LP
- **CENTRAL INDEX KEY:** 0001692507
- **IRS NUMBER:** 813735732
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SC 13G/A

**BUSINESS ADDRESS:**
- **STREET 1:** 55 HUDSON YARDS
- **STREET 2:** SUITE 22A
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10001
- **BUSINESS PHONE:** 212-554-4251

**MAIL ADDRESS:**
- **STREET 1:** 55 HUDSON YARDS
- **STREET 2:** SUITE 22A
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10001

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**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION<br> Washington, DC 20549**

**SCHEDULE 13G/A**

<br> **Under the Securities Exchange Act of 1934**

**(Amendment No. 1)\***

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| |
|:---|
| &nbsp;&nbsp;**Seaport Calibre Materials Acquisition Corporation** |
| &nbsp;&nbsp;(Name of Issuer) |
| &nbsp;&nbsp;**Class A common stock, par value $0.0001 per share** |
| &nbsp;&nbsp;(Title of Class of Securities) |
| &nbsp;&nbsp;**812204105** |
| &nbsp;&nbsp;(CUSIP Number) |
| &nbsp;&nbsp;**December 31, 2022** |
| &nbsp;&nbsp;(Date of Event Which Requires Filing of this Statement) |

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Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

⌧ Rule 13d-1(b)

□ Rule 13d-1(c)

□ Rule 13d-1(d)

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

The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

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| | | |
|:---|:---|:---|
| **CUSIP No. 812204105**  | SCHEDULE 13G/A | &nbsp;&nbsp;&nbsp; **Page 2 of 8 Pages** |

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| | | | | |
|:---|:---|:---|:---|:---|
| 1 | NAME OF REPORTING PERSONS<br>Centiva Capital GP, LLC | NAME OF REPORTING PERSONS<br>Centiva Capital GP, LLC | NAME OF REPORTING PERSONS<br>Centiva Capital GP, LLC | NAME OF REPORTING PERSONS<br>Centiva Capital GP, LLC |
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP <br> (a) □<br> (b) □ | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP <br> (a) □<br> (b) □ | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP <br> (a) □<br> (b) □ |  |
| 3 | SEC USE ONLY | SEC USE ONLY | SEC USE ONLY | SEC USE ONLY |
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION<br>Delaware | CITIZENSHIP OR PLACE OF ORGANIZATION<br>Delaware | CITIZENSHIP OR PLACE OF ORGANIZATION<br>Delaware | CITIZENSHIP OR PLACE OF ORGANIZATION<br>Delaware |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 5 | SOLE VOTING POWER<br>0 | SOLE VOTING POWER<br>0 |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 6 | SHARED VOTING POWER<br>773,510 | SHARED VOTING POWER<br>773,510 |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 7 | SOLE DISPOSITIVE POWER<br>0 | SOLE DISPOSITIVE POWER<br>0 |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 8 | SHARED DISPOSITIVE POWER<br>773,510 | SHARED DISPOSITIVE POWER<br>773,510 |
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>773,510 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>773,510 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>773,510 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>773,510 |
| 10 | CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES | CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES | CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES | o |
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>5.95% | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>5.95% | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>5.95% | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>5.95% |
| 12 | TYPE OF REPORTING PERSON<br>PN | TYPE OF REPORTING PERSON<br>PN | TYPE OF REPORTING PERSON<br>PN | TYPE OF REPORTING PERSON<br>PN |

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| | | |
|:---|:---|:---|
| **CUSIP No. 812204105**  | SCHEDULE 13G/A | &nbsp;&nbsp;&nbsp; **Page 3 of 8 Pages** |

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| | | | | |
|:---|:---|:---|:---|:---|
| 1 | NAME OF REPORTING PERSONS<br>Centiva Capital, LP | NAME OF REPORTING PERSONS<br>Centiva Capital, LP | NAME OF REPORTING PERSONS<br>Centiva Capital, LP | NAME OF REPORTING PERSONS<br>Centiva Capital, LP |
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP <br> (a) □<br> (b) □ | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP <br> (a) □<br> (b) □ | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP <br> (a) □<br> (b) □ |  |
| 3 | SEC USE ONLY | SEC USE ONLY | SEC USE ONLY | SEC USE ONLY |
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION<br>Delaware | CITIZENSHIP OR PLACE OF ORGANIZATION<br>Delaware | CITIZENSHIP OR PLACE OF ORGANIZATION<br>Delaware | CITIZENSHIP OR PLACE OF ORGANIZATION<br>Delaware |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 5 | SOLE VOTING POWER<br>0 | SOLE VOTING POWER<br>0 |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 6 | SHARED VOTING POWER<br>773,510 | SHARED VOTING POWER<br>773,510 |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 7 | SOLE DISPOSITIVE POWER<br>0 | SOLE DISPOSITIVE POWER<br>0 |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 8 | SHARED DISPOSITIVE POWER<br>773,510 | SHARED DISPOSITIVE POWER<br>773,510 |
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>773,510 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>773,510 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>773,510 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>773,510 |
| 10 | CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES | CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES | CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES | o |
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>5.95% | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>5.95% | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>5.95% | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>5.95% |
| 12 | TYPE OF REPORTING PERSON<br>IA | TYPE OF REPORTING PERSON<br>IA | TYPE OF REPORTING PERSON<br>IA | TYPE OF REPORTING PERSON<br>IA |

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| | | |
|:---|:---|:---|
| **CUSIP No. 812204105**  | **SCHEDULE 13G/A** | &nbsp;&nbsp;&nbsp; **Page 4 of 8 Pages** |

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**Item 1.** **(a) Name of Issuer**

Seaport Calibre Materials Acquisition Corporation (the "Issuer")

**(b) Address of Issuer's Principal Executive Offices**

360 Madison Avenue, 20th Floor

New York, NY 10017

**Item 2.** **(a) Name of Person Filing**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Centiva Capital, LP (the "Investment Manager"), a Delaware limited partnership and the investment manager of certain affiliated funds (the "Centiva Capital Funds") with respect to the shares of Common Stock (as defined in Item 2(d); and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Centiva Capital GP, LLC, the general partner of the Investment Manager and the Centiva Capital Funds, with respect to the shares of Common Stock held by the Centiva Capital Funds.

The foregoing persons are hereinafter sometimes collectively referred to as the "Reporting Persons."

The filing of this statement should not be construed as an admission that any of the Reporting Persons is, for the purposes of Section 13 of the Act, the beneficial owner of the shares of Common Stock reported herein.

**(b) Address of Principal Business Office, or, if none, Residence**

55 Hudson Yards, Suite 22A

New York, NY 10001

**(c) Citizenship**

Centiva Capital GP, LLC – Delaware

Centiva Capital, LP – Delaware

**(d) Title of Class of Securities**

Class A common stock, par value $0.0001 per share (the "Common Stock")

**(e) CUSIP No.:**

812204105

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| | | |
|:---|:---|:---|
| **CUSIP No. 812204105**  | **SCHEDULE 13G/A** | &nbsp;&nbsp;&nbsp; **Page 5 of 8 Pages** |

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(a) ◻ Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);

(b) ◻ Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);

(c) ◻ Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);

(d) ◻ Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);

(e) ⌧ An investment adviser in accordance with §240.13d-1(b)(1)(ii)(E);

(f) ◻ An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F);

(g) □ A parent holding company or control person in accordance with §240.13d-1(b)(1)(ii)(G);

(h) ◻ A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i) ◻ A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the
 Investment Company Act of 1940 (15 U.S.C. 80a-3);

(j) ◻ A non-U.S. institution in accordance with §240.13d-1(b)(1)(ii)(J);

(k) ◻ A group, in accordance with §240.13d-1(b)(1)(ii)(K). If filing as a non-U.S. institution in accordance with §240.13d-1(b)(1)(ii)(J),
 please specify the type of institution: <u> </u> 

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| | | |
|:---|:---|:---|
| **CUSIP No. 812204105**  | **SCHEDULE 13G/A** | &nbsp;&nbsp;&nbsp; **Page 6 of 8 Pages** |

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**Item 4. Ownership**

Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Amount beneficially owned:

Centiva Capital GP, LLC. – 773,510

Centiva Capital, LP – 773,510

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Percent of class:

5.95% of the 13,000.000 shares of Common Stock (Class A) outstanding as of September 30, 2022 as reported in the Issuer's Form 10-Q Quarterly Report filed on November 14, 2022.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) Number of shares as to which the person has:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) Sole power to vote or to direct the vote:

Centiva Capital GP, LLC. – 773,510

Centiva Capital, LP – 773,510

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) Shared power to vote or to direct the vote:

Centiva Capital GP, LLC. – 773,510

Centiva Capital, LP – 773,510

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii) Sole power to dispose or to direct the disposition of:

Centiva Capital GP, LLC. – 773,510

Centiva Capital, LP – 773,510

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iv) Shared power to dispose or to direct the disposition of:

Centiva Capital GP, LLC. – 773,510

Centiva Capital, LP – 773,510

The responses to questions 5 through 9 and 11 on the cover page(s) are incorporated by reference into this Item 4.

**Item 5. Ownership of Five Percent or Less of a Class**

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following [ ].

**Item 6. Ownership of More Than Five Percent on Behalf of Another Person**

Not Applicable

**Item 7. Identification and Classification of the Subsidiary which Acquired the Security Being Reported on by the Parent Holding Company or Control Person**

Not Applicable

**Item 8. Identification and Classification of Members of the Group**

Not Applicable

**Item 9. Notice of Dissolution of Group**

Not Applicable

**Item 10. Certification**

By signing below the undersigned certifies that, to the best of its knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

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|:---|:---|:---|
| **CUSIP No. 812204105**  | **SCHEDULE 13G/A** | &nbsp;&nbsp;&nbsp; **Page 7 of 8 Pages** |

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**<u>SIGNATURE</u>**

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Dated: February 3, 2023

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| | | |
|:---|:---|:---|
| **Centiva Capital, LP** | **Centiva Capital, LP** | **Centiva Capital, LP** |
| By: | */s/ James Murray* | */s/ James Murray* |
|  | Name: | James Murray |
|  | Title: | Chief Compliance Officer |

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| | | |
|:---|:---|:---|
| **CUSIP No. 812204105**  | **SCHEDULE 13G/A** | &nbsp;&nbsp;&nbsp; **Page 8 of 8 Pages** |

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<u>Exhibit I</u>

**JOINT FILING STATEMENT**

**PURSUANT TO RULE 13d-1(k)**

The undersigned acknowledge and agree that the foregoing statement on SCHEDULE 13G/A, is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on SCHEDULE 13G/A, shall be filed on behalf of each of the undersigned without the necessity of filing additional joint acquisition statements. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning him or it contained therein, but shall not be responsible for the completeness and accuracy of the information concerning the others, except to the extent that he or it knows or has reason to believe that such information is inaccurate.

Dated: February 3, 2023

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| | |
|:---|:---|
| **Centiva Capital GP, LLC** | **Centiva Capital GP, LLC** |
| By: | */s/ James Murray* |
|  | Name: James Murray<br> Title: Chief Compliance Officer |

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