Alphatec (ATEC) Form 144: 137,445 Shares Proposed Sale Worth $2.02M

Alphatec Holdings, Inc. (ATEC) submitted a Form 144 notifying the proposed sale of 137,445 common shares through Morgan Stanley Smith Barney LLC on 09/18/2025 with an aggregate market value of $2,020,441.50.

Rhea-AI Filing Summary

Alphatec Holdings, Inc. (ATEC) submitted a Form 144 notifying the proposed sale of 137,445 common shares through Morgan Stanley Smith Barney LLC on 09/18/2025 with an aggregate market value of $2,020,441.50. The filing shows these shares were acquired on 02/17/2023 as restricted and performance stock units (RSUs & PSUs) from the issuer, and there were no reported sales by the seller in the prior three months.

The shares to be sold represent a small fraction of the 147,983,775 shares outstanding. The filer certifies they are unaware of any undisclosed material adverse information about the issuer. No payment arrangements or gifts are indicated.

Positive

• Clear disclosure of the proposed sale including shares, broker, date, and aggregate market value
• Securities originate from RSUs/PSUs granted on 02/17/2023, indicating compensation-based origin rather than outside acquisition
• No reported sales in the past three months, simplifying aggregation under Rule 144

Negative

• None.

Insights

Securities Analyst

TL;DR: Insider plans to sell about 137k RSU-derived shares worth ~$2.02M, a de minimis portion of outstanding stock.

The filing discloses a scheduled sale of 137,445 common shares via a broker on a specific date, originating from RSUs and PSUs granted on 02/17/2023. At an aggregate value of $2.02M against 147.98M shares outstanding, the transaction is immaterial to market capitalization and dilution metrics. This is a routine Rule 144 notice enabling compliance with resale restrictions rather than an unusual liquidity event.

Corporate Governance Expert

TL;DR: The Form 144 reflects standard insider disclosure and a signed certification of no undisclosed material information.

The filer’s representation that they lack nonpublic material adverse information and the identification of securities as RSUs/PSUs align with governance and disclosure norms. Absence of prior sales in the last three months simplifies aggregation rules. The filing does not indicate a 10b5-1 plan adoption date, special payment terms, or coordinated sales that would raise governance concerns.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Form 144 filed by Alphatec Holdings (ATEC) disclose?

The filing discloses a proposed sale of 137,445 common shares valued at $2,020,441.50 to be executed on 09/18/2025 via Morgan Stanley Smith Barney LLC.

How were the shares to be sold acquired according to the filing?

The securities were acquired on 02/17/2023 as RSUs & PSUs from the issuer.

Do these shares represent a large portion of Alphatec's outstanding stock?

No; the filing lists 147,983,775 shares outstanding, so 137,445 shares are a de minimis fraction of the total.

Did the filer report any securities sold in the past three months?

The filing states Nothing to Report for securities sold during the past three months.

Did the filer claim any undisclosed material information about ATEC?

The filer represents by signature that they do not know any material adverse information about the issuer that has not been publicly disclosed.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 09/18/2025 - 04:28 PM Learn about SEC filing dates

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	0001772837
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	ALPHATEC HOLDINGS INC
SEC File Number	000-52024
Address of Issuer	1950 Camino Vida Roble Carlsbad CALIFORNIA 92008
Phone	760-431-9286
Name of Person for Whose Account the Securities are To Be Sold	DAVID SPONSEL
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	Officer

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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	137445	2020441.50	147983775	09/18/2025	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	02/17/2023	RSUs & PSUs	Issuer			137445	02/17/2023	N/A

* 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

Nothing to Report

144: Remarks and Signature

Remarks	The securities to be sold were acquired upon the vesting of restricted stock units and performance stock units during the period of 02/17/2023 through 02/24/2024.
Date of Notice	09/18/2025
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	06/12/2025
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	/s/ David Sponsel
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)