David M. Demski - 10 Jun 2026 Form 4 Insider Report for Alphatec Holdings, Inc. (ATEC)

Reporting relationship: Director
Issuer ticker: ATEC
Reported as of: 10 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 12 Jun 2026, 17:30:10 UTC
Prior SEC filing: 12 Dec 2025
Source filing: View source filing
Reporting owner signature: /s/ Tyson E. Marshall, Attorney-in-Fact

Key filing fact

David M. Demski filed Form 4 for Alphatec Holdings, Inc. (ATEC) on 12 Jun 2026.

Key facts

This page summarizes David M. Demski's Form 4 filing for Alphatec Holdings, Inc. (ATEC).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 12 Jun 2026, 17:30.

Change

Previous filing in this sequence was filed on 12 Dec 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001555392 Primary reporting owner

Demski David M

Relationship: Director
Address: C/O ALPHATEC SPINE, INC., 1950 CAMINO VIDA ROBLE, CARLSBAD
Signature: /s/ Tyson E. Marshall, Attorney-in-Fact
Signature date: 12 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ATEC transaction

Common Stock

Award

Transaction value
Shares: +32,012
Change %: +8%
Price: $0.000000^*
Shares after: 431,635
Date: 10 Jun 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

On June 10, 2026, issuer granted to the reporting person 32,012 restricted stock units. Each restricted stock unit represents a contingent right to receive one share of issuer's common stock. The restricted stock units vest on the earlier of (a) the next annual meeting of stockholders and (b) the death or resignation of the reporting person. In the event of death or resignation of the reporting person, the grant will vest pro-rata based on the number of actual days served by the reporting person from the time of the grant to such death or resignation, divided by 365.