Director Lyons adds 8,292 Sintx Technologies (SINT) shares in open-market buys

Rhea-AI Filing Summary

Sintx Technologies director Christopher Michael Lyons reported open-market purchases of the company’s common stock. He bought 7,534 shares at $2.90 per share on March 2, 2026 and 758 shares at $2.96 per share on February 25, 2026, bringing his direct holdings to 8,292 shares.

Insider Trade Summary

Net Buyer: 8,292 shares ($24,092)

Net Buy 2 txns

Insider Lyons Christopher Michael

Role Director

Bought 8,292 shs ($24K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	7,534	$2.90	$22K
Purchase	Common Stock	758	$2.96	$2K

Holdings After Transaction: Common Stock — 8,292 shares (Direct)

Footnotes (1)

Form 4 Insider Transactions: What Each Field Means →

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
Estimated average burden
hours per response:			0.5

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^*

Lyons Christopher Michael

(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)
02/23/2026

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	02/25/2026		P		758	A	$2.96	758	D
Common Stock	03/02/2026		P		7,534	A	$2.9	8,292	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	03/10/2026
	** 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

What insider transactions did Sintx Technologies (SINT) report for Christopher Michael Lyons?

Christopher Michael Lyons, a director of Sintx Technologies, reported two open-market purchases of common stock. He bought 7,534 shares on March 2, 2026 and 758 shares on February 25, 2026, increasing his directly owned stake to a total of 8,292 shares.

How many Sintx Technologies (SINT) shares did director Lyons buy and at what prices?

Director Christopher Michael Lyons bought 7,534 Sintx Technologies common shares at $2.90 each on March 2, 2026, and 758 shares at $2.96 each on February 25, 2026. These open-market purchases together raised his direct ownership position in the company’s stock.

What is Christopher Michael Lyons’ Sintx Technologies (SINT) share ownership after the reported trades?

After the reported open-market purchases, Christopher Michael Lyons directly owns 8,292 shares of Sintx Technologies common stock. This figure reflects his holdings following the March 2, 2026 transaction, which came after a smaller purchase completed on February 25, 2026.

Were the Sintx Technologies (SINT) insider trades by Lyons open-market purchases or other types of transactions?

Both transactions reported by Christopher Michael Lyons were open-market purchases of Sintx Technologies common stock. The Form 4 identifies the transaction code as “P,” described as a purchase in an open market or private transaction, and classifies his ownership as direct in each case.

On what dates did Sintx Technologies (SINT) director Lyons buy shares and how were they classified?

Christopher Michael Lyons bought Sintx Technologies common stock on February 25, 2026 and March 2, 2026. Each transaction is classified as a non-derivative, open-market purchase of common stock, coded “P,” with shares held under direct ownership following completion of the trades.