David R. Pelizzon - 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, 17:30:13 UTC
Prior SEC filing: 10 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Tyson E. Marshall, Attorney-in-Fact

Key filing fact

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

Key facts

This page summarizes David R. Pelizzon'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 10 Jun 2026.
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 0001719217 Primary reporting owner

Pelizzon David R

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 %: +9.2%
Price: $0.000000^*
Shares after: 378,839
Date: 10 Jun 2026
Ownership: Direct
Footnotes: F1

ATEC holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 10,395,045
Date: 10 Jun 2026
Ownership: By Squadron Capital LLC
Footnotes: F2

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

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.

Footnote F2

These shares are held by Squadron Capital LLC ("Squadron"). As one of two members of the Managing Committee of Squadron, the reporting person may be deemed to be the beneficial owner of these shares. The reporting person expressly disclaims beneficial ownership of these shares, except to the extent of his pecuniary interest therein. The inclusion of these shares in this report shall not be deemed to be an admission of beneficial ownership for purposes of Section 16 or for any other purpose.