UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): September 8, 2025

SINTX Technologies, Inc.

(Exact name of registrant as specified in its charter)

Delaware

001-33624

84-1375299

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

1885 West 2100 South

Salt Lake City, UT 84119

(Address of principal executive offices, including Zip Code)

Registrant’s telephone number, including area code: (801) 839-3500

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class:		Trading Symbol(s):		Name of each exchange on which registered:
Common Stock, par value $0.01 per share		SINT		The NASDAQ Capital Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 1.01 Entry into a Material Definitive Agreement.

On September 8, 2025, SINTX Technologies, Inc. (the “Company”) entered into an inducement agreement (the “Inducement Letter”) with certain holders (the “Holders”) of certain of the Company’s existing warrants to purchase up to an aggregate of 1,099,431 shares of the Company’s common stock originally issued on February 25, 2025, with a five and one-half (5.5) years term at an exercise price of $3.32 per share (the “Existing Warrants”).

Pursuant to the Inducement Letter, the Holders agreed to exercise for cash the Existing Warrants to purchase an aggregate of 1,099,431 shares of the Company’s common stock at an exercise price of $3.32 per share in consideration of the Company’s agreement to issue new common stock purchase warrants (the “New Warrants”), as descried below, to purchase up to an aggregate of 1,649,147 shares of the Company’s common stock (the “New Warrant Shares”) at an exercise price of $4.79 per share. In addition, the Holders agreed to pay $0.125 per New Warrant as consideration for the issuance of the New Warrants. The Company expects to receive aggregate gross proceeds of approximately $3.8 million from the exercise of the Existing Warrants by the Holder, before deducting placement agent fees and other offering expenses payable by the Company.

The Company has engaged H.C. Wainwright & Co., LLC (the “Placement Agent”) to act as its exclusive placement agent in connection with the transactions contemplated by the Inducement Letter and has agreed to pay the Placement Agent a cash fee equal to 7.5% of the aggregate gross proceeds received from the Holder’s exercise of the Existing Warrants, as well as a management fee equal to 1.0% of the gross proceeds from the exercise of the Existing Warrants. The Company has also agreed to issue to the Placement Agent or its designees warrants (the “Placement Agent Warrants”) to purchase up to 82,457 shares of common stock (representing 7.5% of the Existing Warrants being exercised), which will have the same terms as the New Warrants except the Placement Agent Warrants will have an exercise price equal to $4.3844 per share (125% of the exercise price of the Existing Warrants). The Company will also issue additional warrants to the Placement Agent to purchase up to 9,935 shares of common stock (representing 7.5% of warrants issued on February 25, 2025 that were exercised other than in connection with the Inducement Letter), which also have the same terms as the New Warrants except that they will have an exercise price equal to $4.3125 (the “Additional Placement Agent Warrants”). The New Warrants will be immediately exercisable from the date of issuance, until the five and one-half (5.5) year anniversary of such date for the New Warrants. The Placement Agent Warrants and Additional Placement Agent Warrants will be immediately exercisable from the date of issuance, until five and one-half (5.5) years after such date. In addition, the Company has also agreed to pay the Placement Agent $35,000 for non-accountable expenses, up to $50,000 for legal and other out-of-pocket expenses, and $15,950 for clearing fees.

The closing of the transactions contemplated pursuant to the Inducement Letter is expected to occur on or about September 9, 2025 (the “Closing Date”), subject to satisfaction of customary closing conditions. The Company expects to use the net proceeds from these transactions for general corporate purposes.

The resale of the shares of the Company’s common stock underlying the Existing Warrants have been registered pursuant to an existing registration statement on Form S-3 (File No. 333-285932), declared effective by the Securities and Exchange Commission (the “SEC”) on March 27, 2025.

The Company also agreed to file a registration statement on Form S-3 (or other appropriate form, including on Form S-1, if the Company is not then S-3 eligible) providing for the resale of the New Warrant Shares issued or issuable upon the exercise of the New Warrants (the “Resale Registration Statement”), as soon as practicable after the Closing Date (and in any event within thirty (30) calendar days of the date of the Inducement Letter), and to use commercially reasonable efforts to have such Resale Registration Statement declared effective by the SEC within sixty (60) calendar days following the date of the Inducement Letter (or within ninety (90) calendar days following the date of the Inducement Letter in case of “full review” of the Resale Registration Statement by the SEC) and to keep the Resale Registration Statement effective at all times until the earlier of such time that (i) no holder of the New Warrants owns any New Warrants or New Warrant Shares or (ii) the New Warrant Shares are eligible for sale under Rule 144 (assuming cashless exercise of the New Warrants), without the requirement for the Company to be in compliance with the current public information required under Rule 144 as to such New Warrant Shares and without volume or manner-of-sale restrictions. In the Inducement Letter, the Company agreed not to issue any shares of common stock or common stock equivalents or to file any other registration statement with the SEC (in each case, subject to certain exceptions) until fifteen (15) days after the Closing Date. The Company also agreed not to effect or agree to effect any Variable Rate Transaction (as defined in the Inducement Letter) until one (1) year after the Closing Date (subject to certain exceptions).

The New Warrants, Placement Agent Warrants, the New Warrant Shares and the shares of common stock issuable upon the exercise of the Placement Agent Warrants are being offered and sold pursuant to an exemption from the registration requirements under Section 4(a)(2) of the Securities Act of 1933, as amended (the “Securities Act”). The Holder has represented that it is an accredited investor as defined in Rule 501 of the Securities Act and has acquired such securities for their own account and has no arrangements or understandings for any distribution thereof. The offer and sale of the foregoing securities is being made without any form of general solicitation or advertising. The New Warrants, Placement Agent Warrants, the New Warrant Shares and the shares of common stock issuable upon the exercise of the Placement Agent Warrants have not been registered under the Securities Act or applicable state securities laws. Accordingly, such securities may not be offered or sold in the United States except pursuant to an effective registration statement or an applicable exemption from the registration requirements of the Securities Act and such applicable state securities laws.

This Current Report on Form 8-K shall not constitute an offer to sell or the solicitation to buy nor shall there be any sale of the securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

Immediately prior to the transactions contemplated by the Inducement Letter, the number of shares of the Company’s common stock that was issued and outstanding was 2,850,957. After giving effect to the transactions contemplated by the Inducement Letter, including the closing thereof, the number of shares of the Company’s common stock that will be issued and outstanding is 3,950,388.

Terms of the New Warrants

The following summary of certain terms and provisions of the New Warrants is not complete and is subject to, and qualified in its entirety by, the provisions of the New Warrants, the form of which is filed as Exhibit 10.2 to this Current Report on Form 8-K and is incorporated herein by reference. The following description of the New Warrants is qualified in its entirety by reference to such exhibit.

The Placement Agent Warrants and Additional Placement Agent Warrants have the same terms as the New Warrants, except that they have exercise prices per share of $4.3844 and $4.3125, respectively. This summary of the provisions of the Placement Agent Warrants and Additional Placement Agent Warrants is not complete and is subject to, and qualified in its entirety by, the provisions of the Placement Agent Warrants and Additional Placement Agent Warrants, forms of which are filed as Exhibits 10.3 and 10.4, respectively.

Duration and Exercise Price

The New Warrants will have an exercise price equal to $4.79 per share. The New Warrants will be immediately exercisable from the date of issuance for five and one-half (5.5) years. The exercise price and number of New Warrant Shares issuable upon exercise of the New Warrants is subject to appropriate adjustment in the event of stock dividends, stock splits, subsequent rights offerings, pro rata distributions, reorganizations, or similar events affecting the Company’s common stock and the exercise price.

Exercisability

The New Warrants will be exercisable, at the option of each holder, in whole or in part, by delivering to the Company a duly executed exercise notice accompanied by payment in full for the number of shares of the Company’s common stock purchased upon such exercise (except in the case of a cashless exercise as discussed below). A holder (together with its affiliates and attribution parties) may not exercise any portion of such holder’s New Warrants to the extent that the holder would beneficially own more than 4.99% (or, at the election of the holder, 9.99%) of the outstanding common stock immediately after exercise, calculated in accordance with the terms of the New Warrants, except that upon prior notice from the holder to the Company, the holder may increase or decrease the amount of ownership of outstanding stock after exercising the holder’s New Warrants up to 9.99% of the number of shares of the Company’s common stock outstanding immediately after giving effect to the exercise, as such percentage ownership is determined in accordance with the terms of the New Warrants, provided that any increase will not be effective until the 61st day after such notice is delivered to the Company.

Cashless Exercise

If, at any time after ninety (90) days after the issuance of the New Warrants there is no effective registration statement registering, or the prospectus contained therein is not available for the resale of the New Warrant Shares by the holder, then in lieu of making the cash payment otherwise contemplated to be made to the Company upon such exercise in payment of the aggregate exercise price, the holder may elect instead to receive upon such exercise (either in whole or in part), the net number of shares of common stock determined according to a formula set forth in the New Warrants.

Trading Market

There is no established trading market for the New Warrants, and the Company does not expect an active trading market to develop. The Company does not intend to apply to list the New Warrants on any securities exchange or other trading market. Without a trading market, the liquidity of the New Warrants will be extremely limited.

Rights as a Stockholder

Except as otherwise provided in the New Warrants or by virtue of the holder’s ownership of shares of the Company’s common stock, such holder of New Warrants does not have the rights or privileges of a holder of the Company’s common stock, including any voting rights, until such holder exercises such holder’s New Warrants. The New Warrants will provide that the holders of the New Warrants have the right to participate in distributions or dividends paid on shares of the Company’s common stock.

Fundamental Transactions

If at any time the New Warrants are outstanding, the Company, either directly or indirectly, in one or more related transactions effect a Fundamental Transaction (as defined in the New Warrants), a holder of New Warrants will be entitled to receive, for each warrant share, the number of shares of common stock of the successor or acquiring corporation or of the Company, if the Company is the surviving corporation, and any additional consideration receivable as a result of the Fundamental Transaction by such holder of the number of shares of common stock for which the New Warrants are exercisable immediately prior to the Fundamental Transaction (without regard to beneficial ownership limitations). Alternatively, at the holder’s option, the Company or successor entity may be required to purchase the New Warrants for cash equal to their Black Scholes Value (as defined in the New Warrants).

Waivers and Amendments

The New Warrants may be modified or amended or the provisions of the New Warrants waived with the Company’s and the holder’s written consent.

The forms of Inducement Letter, New Warrants and Placement Agent Warrants are attached as Exhibits 10.1, 10.2 and 10.3, respectively. The description of the terms of the Inducement Letter and the New Warrants are not intended to be complete and are qualified in its entirety by reference to such exhibits. The Inducement Letter contains customary representations, warranties and covenants by the Company which were made only for the purposes of such agreements and as of specific dates, were solely for the benefit of the parties to such agreements and may be subject to limitations agreed upon by the contracting parties.

Item 3.02 Unregistered Sales of Equity Securities.

The information under Item 1.01 of this Current Report on Form 8-K regarding the unregistered securities described therein is incorporated herein by reference.

Warning Concerning Forward Looking Statements

This Current Report on Form 8-K contains statements which constitute forward looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 and other securities laws. These forward looking statements are based upon the Company’s present intent, beliefs or expectations, but forward looking statements are not guaranteed to occur and may not occur for various reasons, including some reasons which are beyond the Company’s control. For example, this Current Report states that the closing of the offering is expected to close on or about September 8, 2025. In fact, the closing of the offering is subject to various conditions and contingencies as are customary in similar purchase agreements in the United States. If these conditions are not satisfied or the specified contingencies do not occur, this offering may not close. For this reason, among others, you should not place undue reliance upon the Company’s forward looking statements. Except as required by law, the Company undertakes no obligation to revise or update any forward looking statements in order to reflect any event or circumstance that may arise after the date of this Current Report.

Item 9.01. Financial Statement and Exhibits.

(d) Exhibits.

Exhibit No.		Description
10.1		Form of Inducement Letter

10.2		Form of New Warrant

10.3		Form of Placement Agent Warrant

10.4		Form of Additional Placement Agent Warrant

104		Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

		SINTX Technologies, Inc.

Date:	September 9, 2025	By:	/s/ Eric K. Olson
			Eric K. Olson
			Chief Executive Officer

Sintx Technologies, Inc. 8-K