Sintx Technologies Director Increases Stake by $33,000 in Bullish Move

Rhea-AI Filing Summary

Director Mark Lewis Anderson of Sintx Technologies has reported a significant insider purchase of company shares. On June 18, 2025, Anderson acquired 10,000 shares of Common Stock at a price of $3.30 per share, representing a total investment of $33,000.

Following this transaction, Anderson's direct ownership increased to 15,000 shares of Sintx Technologies common stock. The purchase was executed as a standard market transaction and was reported through Form 4 filed with the SEC on June 28, 2025.

This insider buying activity by a board member could be viewed as a positive signal about the company's prospects, as directors often purchase shares when they believe the stock is undervalued or expect positive developments. The transaction was authorized through power of attorney by Kevin Ontiveros.

Positive

• Director Mark Lewis Anderson made a significant open market purchase of 10,000 shares at $3.30 per share ($33,000 total), increasing his total holdings by 200% to 15,000 shares

Negative

• None.

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Anderson Mark Lewis

(Last) (First) (Middle)

1885 WEST 2100 SOUTH

(Street)

SALT LAKE CITY, UT 84119

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Sintx Technologies, Inc. [ SINT ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
06/18/2025

4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/18/2025		P		10,000	A	$3.3	15,000	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/S/Kevin Ontiveros, by power of attorney	06/23/2025
	** 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 4 (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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

How many SINT shares did Director Mark Lewis Anderson purchase on June 18, 2025?

Director Mark Lewis Anderson purchased 10,000 shares of SINT common stock on June 18, 2025 at a price of $3.30 per share.

What is Mark Anderson's total SINT stock ownership after the June 2025 purchase?

Following the reported transaction, Mark Anderson beneficially owns 15,000 shares of SINT common stock directly.

What position does Mark Anderson hold at SINT Technologies?

According to the Form 4 filing, Mark Anderson serves as a Director of SINT Technologies, Inc. He is not listed as an officer or 10% owner.

When was the Form 4 for SINT insider trading signed and filed?

The Form 4 was signed by Kevin Ontiveros (via power of attorney) on June 23, 2025, and filed with the SEC on June 28, 2025.

Did Mark Anderson acquire any derivative securities of SINT in this transaction?

No, the Form 4 filing shows no acquisition or disposition of derivative securities (such as options or warrants). The transaction only involved common stock.