Alphatec (ATEC) Form 144: Insider sale after 10b5-1 disposition

Rhea-AI Filing Summary

Alphatec Holdings, Inc. (ATEC) Form 144 notice: An insider intends to sell 2,555 shares of common stock on approximately 09/19/2025 on NASDAQ with an aggregate market value of $38,887.10 based on the filing. The shares were acquired as restricted stock units (RSUs) on 02/17/2024 and the filer reports the securities were issued by the company. The issuer's total shares outstanding is listed as 147,983,775. The filing also discloses recent 10b5-1 sales by the same person: 137,445 shares sold on 09/18/2025 for $2,073,742.67. The notice includes the standard representation that the selling person does not possess undisclosed material information and references reliance on a trading plan where applicable.

Positive

• Securities are reported as acquired via RSUs, showing the sale is of issuer-granted compensation shares
• Filing includes 10b5-1 disclosure for recent sales, indicating use of a trading plan and procedural compliance

Negative

• Large prior insider sale disclosed: 137,445 shares sold for $2,073,742.67 on 09/18/2025, which may concern some investors
• Issuer identification fields are incomplete in the provided extract (no SEC file number or full issuer address shown)

Insights

Securities Analyst

TL;DR: Insider plans to sell 2,555 RSU-derived shares on 09/19/2025; a large 10b5-1 sale occurred one day earlier.

The filing shows a routine Form 144 disclosure for an insider sale of 2,555 shares derived from RSUs acquired 02/17/2024. The listing of a 10b5-1 sale of 137,445 shares on 09/18/2025 for $2,073,742.67 is material to investors because it quantifies recent insider disposition activity. This notice includes required compliance attestations but provides no information on the issuer's operations, financial performance, or reasons for sale. As a disclosure document, it fulfills regulatory notice obligations only.

Corporate Governance Expert

TL;DR: Form 144 documents a planned sale under Rule 144 and notes use of a 10b5-1 trading plan for recent larger transactions.

The record indicates the securities to be sold were RSUs and that the selling person made the customary representation about absence of undisclosed material information. The presence of a 10b5-1 sale on 09/18/2025 suggests transactions may be governed by a pre-established trading plan, which is relevant for assessing compliance with insider trading rules. The filing does not include issuer-specific governance changes or disclosures beyond the sale mechanics.

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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	2555	38887.10	147983775	09/19/2025	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	02/17/2024	Restricted Stock Units	Issuer			2555	02/17/2024	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for DAVID SPONSEL 1950 Camino Vida Roble Carlsbad CA 92008	Common	09/18/2025	137445	2073742.67

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

How many ATEC shares does the insider plan to sell according to the Form 144?

The filing states the insider plans to sell 2,555 shares of common stock.

When is the approximate sale date listed for the ATEC securities?

The approximate date of sale is listed as 09/19/2025.

What was the acquisition method and date for the shares being sold?

The shares were acquired as Restricted Stock Units (RSUs) on 02/17/2024.

Was there any recent insider selling reported in the Form 144?

Yes. The filing discloses a 10b5-1 sale of 137,445 shares on 09/18/2025 for $2,073,742.67.

On which exchange are the planned sales to occur?

The planned sale is listed to occur on NASDAQ.