Alphatec CFO logs tax share disposition

Alphatec Holdings, Inc. chief financial officer John Todd Koning reported a tax-related share disposition.

Rhea-AI Filing Summary

Alphatec Holdings, Inc. chief financial officer John Todd Koning reported a tax-related share disposition. On March 5, 2026, 68,910 shares of common stock at $12.57 per share were withheld by the company to cover his tax obligations from vesting restricted stock units.

After this withholding transaction, Koning continued to hold 680,510 shares of Alphatec Holdings common stock in direct ownership.

Insider Trade Summary

Exercise Price or Tax Liability: 68,910 shares

Exercise Price or Tax Liability 1 txn

Insider Koning John Todd

Role CHIEF FINANCIAL OFFICER

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	68,910	$12.57	$866K

Holdings After Transaction: Common Stock — 680,510 shares (Direct)

Footnotes (1)

1. F1. Shares withheld by the issuer to satisfy tax withholding obligations of the reporting person resulting from vesting of restricted stock units.

FAQ

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

What insider transaction did Alphatec Holdings (ATEC) report for March 5, 2026?

Alphatec Holdings reported that its chief financial officer, John Todd Koning, had 68,910 common shares withheld on March 5, 2026. The shares were withheld by the issuer to satisfy his tax obligations from the vesting of restricted stock units.

Was the Alphatec Holdings (ATEC) Form 4 transaction an open-market sale?

No, the Form 4 transaction was a tax-withholding disposition, not an open-market sale. Shares were withheld by Alphatec Holdings to cover John Todd Koning’s tax liability arising from the vesting of his restricted stock units, according to the filing footnote.

How many Alphatec Holdings (ATEC) shares were involved in the CFO’s tax withholding?

The transaction involved 68,910 shares of Alphatec Holdings common stock at a reported price of $12.57 per share. These shares were withheld by the company to meet the chief financial officer’s tax obligations tied to restricted stock unit vesting.

How many Alphatec Holdings (ATEC) shares does the CFO hold after this Form 4 transaction?

Following the tax-withholding disposition, chief financial officer John Todd Koning directly owned 680,510 shares of Alphatec Holdings common stock. This post-transaction holding reflects his remaining direct ownership after the issuer withheld shares to satisfy his RSU-related tax obligations.

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

The insider is John Todd Koning, the chief financial officer of Alphatec Holdings, Inc. The Form 4 describes a tax-withholding disposition of company shares connected to the vesting of his restricted stock units, rather than a discretionary market trade.

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

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Accepted by SEC EDGAR 03/09/2026 - 03:00 PM Learn about SEC filing dates

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
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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^*

Koning John Todd

(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)
	CHIEF FINANCIAL OFFICER

3. Date of Earliest Transaction (Month/Day/Year)
03/05/2026

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	03/05/2026		F(1)		68,910	D	$12.57	680,510	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. Shares withheld by the issuer to satisfy tax withholding obligations of the reporting person resulting from vesting of restricted stock units.

	/s/ Tyson E. Marshall, Attorney-in-Fact	03/08/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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