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ATECAlphatec Holdings, Inc.

David Sponsel

EVP, Sales at Alphatec Holdings, Inc., as of Mar 13, 2026Sold $4.5M of stock in the past 12 months: 99.5% under a disclosed plan and 0.5% to cover taxes.

Updated Oct 15, 2026 from SEC filings · covers Oct 16, 2025 to Oct 15, 2026
505K
shares held after the latest filing, Alphatec Holdings, Inc.
Vested shares reported on Forms 3, 4 and 5 only. Not the insider's whole wealth.
316K
shares sold, past 12 months
5
days with sales
$2.0M
largest single day, Mar 11, 2026
1
company filed for

Share of stake sold at Alphatec Holdings, Inc. is not shown: most of their shares vested during the period, so a percentage would mislead. Why

Selling by month

Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.

Disclosed planTo cover taxesOne dollar scale for every month; the tallest bar is labeled
Oct 2025: $1.1M under a disclosed planOctNovDec 2025: $439K under a disclosed planDec 2025: $21K to cover taxesDecJanFeb 2026: $833K under a disclosed planFebMar 2026: $2.0M under a disclosed plan$2.0MMarAprMayJunJulAugSepOct

Pattern

What the filings show, past 12 months. Nothing here rates or predicts.

Roles from filings

Every company we track where this person has filed, newest filing first.

CompanyTitleFirst filingLatest filing
Alphatec Holdings, Inc. (ATEC)EVP, SalesApr 8, 2019Mar 13, 2026

Recent filings

The last 5 days with transactions, newest first, one line per trade date. Each number links to an SEC filing.

This page shows only what this person reported on SEC ownership filings. See the methodology. Spotted something wrong? Report an error.