SEC Form 4 reporting owner

Koning John Todd

Koning John Todd has filed 7 Form 4 transactions reported between December 8, 2025 and March 13, 2026, as CHIEF FINANCIAL OFFICER of Alphatec Holdings, Inc..

Name as filed: Koning John Todd

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$986K

1 lines

Companies

with Form 4 filings

Latest transaction

Mar 13, 2026

transaction date

Roles and reported holdings

ATECAlphatec Holdings, Inc.
Dec 8, 2025 – Mar 13, 2026
CHIEF FINANCIAL OFFICER
Held directly600,721 sh as of Mar 13, 2026 · Form 4
24 months: $986K sold

Transaction history

All 7 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Mar 13, 2026	ATECCHIEF FINANCIAL OFFICER	Open-market saleCode S · direct	79,789	$12.36	$986K@ $12.36	600,721	Form 4
Mar 5, 2026	ATECCHIEF FINANCIAL OFFICER	Shares withheld for tax or exercise priceCode F · direct	68,910	$12.57	$866K@ $12.57	680,510	Form 4
Feb 25, 2026	ATECCHIEF FINANCIAL OFFICER	Grant or awardCode A · direct	55,197	—	—	55,197	Form 4
Feb 25, 2026	ATECCHIEF FINANCIAL OFFICER	Grant or awardCode A · direct	20,380	—	—	749,420	Form 4
Feb 25, 2026	ATECCHIEF FINANCIAL OFFICER	Grant or awardCode A · direct	110,394	—	—	729,040	Form 4
Feb 25, 2026	ATECCHIEF FINANCIAL OFFICER	Grant or awardCode A · direct	205,094	—	—	618,646	Form 4
Dec 8, 2025	ATECCHIEF FINANCIAL OFFICER	Shares withheld for tax or exercise priceCode F · direct	15,266	$21.45	$327K@ $21.45	445,955	Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.