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D

Demski David M

Open-market buys

1

$409K total

Open-market sells

1

$636K total

Tracking since

Dec 2025

Activity timeline

Open-market buy — $409K

Alphatec Holdings, Inc. · Oct 30, 2026

Open-market sale — $636K

Alphatec Holdings, Inc. · Dec 11, 2025

Open-market trades from the last two years.

Holdings as last reported

491,635 Common Stock in ATEC

Held directly · as of 2026-10-30

Companies touched

Alphatec Holdings, Inc.