SEC Form 4 reporting owner

Sponsel David

Sponsel David has filed 8 Form 4 transactions reported between December 8, 2025 and March 11, 2026, as EVP, SALES of Alphatec Holdings, Inc..

Name as filed: Sponsel David

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$3.3M

4 lines

Companies

with Form 4 filings

Latest transaction

Mar 11, 2026

transaction date

Roles and reported holdings

ATECAlphatec Holdings, Inc.
Dec 8, 2025 – Mar 11, 2026
EVP, SALES
Held directly504,932 sh as of Mar 11, 2026 · Form 4
24 months: $3.3M sold

Transaction history

All 8 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Mar 11, 2026	ATECEVP, SALES	Open-market saleCode S · direct	163,452	$12.52	$2.0M@ $12.52	504,932	Form 4
Feb 25, 2026	ATECEVP, SALES	Grant or awardCode A · direct	46,705	—	—	46,705	Form 4
Feb 25, 2026	ATECEVP, SALES	Grant or awardCode A · direct	20,380	—	—	668,384	Form 4
Feb 25, 2026	ATECEVP, SALES	Grant or awardCode A · direct	93,410	—	—	648,004	Form 4
Feb 25, 2026	ATECEVP, SALES	Grant or awardCode A · direct	205,094	—	—	554,594	Form 4
Feb 5, 2026	ATECEVP, SALES	Open-market saleCode S · direct	60,425	$13.79	$833K@ $13.79	349,500	Form 4
Dec 10, 2025	ATECEVP, SALES	Open-market saleCode S · direct	21,106	$20.79	$439K@ $20.79	439,767	Form 4
Dec 8, 2025	ATECEVP, SALES	Open-market saleCode S · direct	988	$21.45	$21K@ $21.45	460,873	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.