Executive sold 228,706 award shares to cover at ATEC (NASDAQ: ATEC)

Rhea-AI Filing Summary

Craig Hunsaker reported insider sales. The filing shows 66,041 RSUs and 162,665 PSUs were sold to cover with trade dates listed as 03/05/2026 and an execution/settlement date of 03/06/2026. It also lists a prior sale of 32,584 common shares on 12/10/2025. The broker is shown as Merrill Lynch.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
common	Merrill Lynch 701 B Street suite 2400 San Diego CA 92101	95000	1159000	151356620	03/06/2026	nasdaq

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
common	03/05/2026	RSU	craig hunsaker			66041	03/06/2026	sold to cover
common	03/05/2026	PSU	craig hunsaker			162665	03/06/2026	sold to cover

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
craig hunsaker 1950 Camino Vida Roble Carlsbad CA 92008	common	12/10/2025	32584	676889

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What insider transactions did ATEC report in this Form 144?

Craig Hunsaker reported sales of equity awards. The filing lists 66,041 RSUs and 162,665 PSUs sold to cover on 03/05/2026 (settlement 03/06/2026), plus a prior sale of 32,584 common shares on 12/10/2025.

Who executed the trades reported in the ATEC Form 144?

The broker shown is Merrill Lynch. The filing identifies Merrill Lynch, 701 B Street, Suite 2400, San Diego, CA as the broker associated with the transactions reported on 03/06/2026.

Which security types were involved in the ATEC insider sales?

Restricted and performance awards plus common stock were sold. The filing lists RSUs (66,041), PSUs (162,665) sold to cover and a prior sale of 32,584 common shares on 12/10/2025.

When did the most recent trades in the ATEC Form 144 occur?

The reported trade dates are early March 2026. Trade activity is dated 03/05/2026 with settlement/execution shown as 03/06/2026; an earlier sale occurred on 12/10/2025.