Alphatec Holdings (ATEC) EVP Sells 21,106 Shares Under 10b5-1 Plan

Rhea-AI Filing Summary

Alphatec Holdings, Inc. reported that its Executive Vice President of Sales sold 21,106 shares of the company’s common stock on December 10, 2025 at a weighted average price of $20.79 per share.

The sale was carried out under a Rule 10b5-1 trading plan that the reporting person adopted on June 12, 2025. The shares were sold in multiple transactions at prices ranging from $20.54 to $20.98. Following this transaction, the executive beneficially owns 439,767 shares of Alphatec common stock, held directly.

Insider Trade Summary

Net Seller: 21,106 shares ($438,794)

Net Sell 1 txn

Insider Sponsel David

Role EVP, SALES

Sold 21,106 shs ($439K)

Type	Security	Shares	Price	Value
Sale	Common Stock	21,106	$20.79	$439K

Holdings After Transaction: Common Stock — 439,767 shares (Direct)

Footnotes (1)

1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 12, 2025. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.54 to $20.98, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

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).

X

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^*

Sponsel David

(Last) (First) (Middle)

C/O ALPHATEC SPINE, INC.

1950 CAMINO VIDA ROBLE

(Street)

CARLSBAD CA 92008

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Alphatec Holdings, Inc. [ ATEC ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
12/10/2025

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	12/10/2025		S(1)		21,106	D	$20.79(2)	439,767	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:

1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 12, 2025.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.54 to $20.98, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

	/s/ Tyson E. Marshall, Attorney-in-Fact	12/12/2025
	** 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

Who is the insider in the Alphatec Holdings (ATEC) Form 4 filing?

The insider is an officer of Alphatec Holdings, Inc., serving as EVP, Sales, who reports transactions in the company’s common stock.

How many Alphatec (ATEC) shares were sold and on what date?

The reporting person sold 21,106 shares of Alphatec common stock on December 10, 2025.

What was the sale price for the Alphatec (ATEC) shares in this Form 4?

The weighted average sale price was $20.79 per share, with individual transaction prices ranging from $20.54 to $20.98, inclusive.

How many Alphatec (ATEC) shares does the executive own after this transaction?

After the reported sale, the executive beneficially owns 439,767 shares of Alphatec common stock, held in direct ownership.

Was the Alphatec (ATEC) insider sale made under a Rule 10b5-1 trading plan?

Yes. The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 12, 2025, described as a contract, instruction or written plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Can investors obtain more detail on the individual sale prices for this Alphatec (ATEC) trade?

The reporting person states they will provide full information on the number of shares sold at each separate price within the $20.54 to $20.98 range to the issuer, any security holder, or the SEC staff upon request.