SCHEDULE 13G

CUSIP No.

829392703

Names of Reporting Persons

Sinaptic Holdings, LLC

Check the appropriate box if a member of a Group (see instructions)

(a)

(b)

Sec Use Only

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 281,450.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 281,450.00
8	Shared Dispositive Power 0.00

Aggregate Amount Beneficially Owned by Each Reporting Person

281,450.00

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

Checkbox not checked

Percent of class represented by amount in row (9)

7.2 %

Type of Reporting Person (See Instructions)

Comment for Type of Reporting Person: The reporting person's ownership consists of (i) 216,450 shares of common stock ("Common Stock"), (ii) 65,000 shares of Common Stock issuable upon the exercise of warrants due to the vesting of certain warrants to purchase shares of Common Stock (the "Vested Warrants") and (iii) 260,000 unvested warrants to purchase shares of Common Stock (the "Unvested Warrants", and together with the Vested Warrants, the "Warrants") that will vest, if at all, upon the achievement of certain performance goals over a four-year period starting July 1, 2025 and subject to a provision limiting the holder's ability to exercise the Warrants if such exercise would cause the holder to beneficially own greater than 19.99% of the Issuer. Because the Unvested Warrants are unvested and subject to performance-based vesting goals, which have not yet been achieved, the shares of Common Stock underlying the Unvested Warrants are not deemed beneficially owned and have not been included in any of the amounts reported above.

SCHEDULE 13G

Item 1.

(a)

Name of issuer:

Sintx Technologies, Inc.

(b)

Address of issuer's principal executive offices:

1885 West 2100 South Salt Lake City, UT, 84119

Item 2.

(a)

Name of person filing:

Sinaptic Holdings, LLC ("Holdings" and the "Reporting Person")

(b)

Address or principal business office or, if none, residence:

The address of the Reporting Person is 591 Brookside Drive, Longmont, CO 80504

(c)

Citizenship:

The Reporting Person is organized in the State of Delaware.

(d)

Title of class of securities:

Common Stock, par value $0.01 per share

(e)

CUSIP No.:

829392703

Item 3.

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:

(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). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:

(k)

Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).

Item 4.

Ownership

(a)

Amount beneficially owned:

On July 10, 2025, Sinaptic Surgical, LLC ("Surgical") transferred all of its shares of Common Stock and all of its Warrants to Holdings, its sole member and manager at the time of the transfer. As a result of such transfer, Surgical no longer has voting or dispositive power over any shares of Common Stock. Subsequent to such transfer and pursuant to a separate transaction, Holdings is no longer the sole member and manager and no longer controls Surgical, a former reporting person on the Schedule 13G originally filed on July 3, 2025, therefore Surgical is not included in this Amendment No. 1 to Schedule 13G. On October 20, 2025, Warrants representing the right to acquire 65,000 shares of Common Stock vested pursuant to the achievement of certain performance-based vesting goals. As a result of the foregoing, Holdings owns 216,450 shares of Common Stock and has the right to acquire 65,000 shares of Common Stock issuable upon the exercise of Vested Warrants. Holdings is also the record holder of 260,000 Unvested Warrants that will vest, if at all, upon the achievement of certain performance goals over a four-year period starting July 1, 2025 and subject to a provision limiting the holder's ability to exercise the Unvested Warrants if such exercise would cause the holder to beneficially own greater than 19.99% of the Issuer. Because the Unvested Warrants are unvested and subject to performance-based vesting goals, which have not yet been achieved, the shares of Common Stock underlying the Unvested Warrants are not deemed beneficially owned and have not been included in any of the amounts reported above.

(b)

Percent of class:

Holdings: 7.2%* *The percentage ownership is determined based on an aggregate 3,916,956 shares of Common Stock of the Issuer outstanding, which is the sum of (i) 3,851,956 shares of Common Stock outstanding as of November 7, 2025, as reported on Form 10-Q filed by the Issuer with the Securities and Exchange Commission on November 12, 2025, and (ii) 65,000 shares of Common Stock issuable upon the exercise of Vested Warrants.

(c)

Number of shares as to which the person has:

(i) Sole power to vote or to direct the vote:

281,450

(ii) Shared power to vote or to direct the vote:

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

281,450

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

Item 5.

Ownership of 5 Percent or Less of a Class.

Item 6.

Ownership of more than 5 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.

Certifications:

By signing below I certify that, to the best of my 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, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

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.

Sinaptic Holdings, LLC

Signature:	/s/ Hugh Roberts
Name/Title:	Hugh Roberts/President and Manager
Date:	11/14/2025