Demski David M

SEC Form 4 insider
Alphatec Holdings, Inc. ($ATEC)
1 thesis · first seen Nov 2, 2026
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Past performance does not predict future results. Informational only, not investment advice.

Thesis history

$ATECSEC Form 4bullish10b5-1 plan
Demski David M · Alphatec Holdings, Inc. · 4h agono track record yet
Long 60,000 shares of ATEC
Bought 60,000 @ $6.81 avg · $408,600 · 2026-10-30

Form 4: Demski David M bought ATEC

Demski David M (Director at Alphatec Holdings, Inc.) reported an open-market purchase of 60,000 shares of ATEC at an average $6.81, roughly $408,600, in a Form 4 filed 2026-11-02. Transaction was made under a pre-arranged 10b5-1 plan.

At post $7.51Now $7.31-2.6% since postedas of Nov 2, 4:15 PM ET
View filing on SEC.gov →

End of results.