Alphatec Holdings (ATEC) insider trading in the last 6 months

Form 4 filings, newest first

Quality Score today 3

3 insiders bought $2M. No sales.

BuyDavid M. Demski$409KDirectorat $6.81 on Oct 30, filed Nov 2

BuyDavid M. DemskiDirector$409Kat $6.81 on Oct 30, filed Nov 2

BuyPatrick Miles$1MCEOat $8.81 on Sep 10, filed Sep 10

BuyPatrick MilesCEO$1Mat $8.81 on Sep 10, filed Sep 10

BuyKeith Valentine$331KDirectorat $7.54 on May 8, filed May 11

BuyKeith ValentineDirector$331Kat $7.54 on May 8, filed May 11

From SEC Form 4s, the newest filed Nov 2, 2026 · Insiders have 2 business days to file a trade

1 more filing on ATEC in the last 6 months, for Pro members. See them free →

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Pro members see every filing on ATEC with what each insider bought or sold and at what price, and can turn on an optional alert when an insider buys.

Who files at Alphatec Holdings

Insider trades by person

Cluster buys at ATEC

3 insiders bought ATEC in the last 6 months: Patrick Miles, Keith Valentine, and David M. Demski.

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Questions about ATEC's insider trades

As of Nov 4, 2026: Alphatec Holdings (ATEC) has 4 insider filings on record in the last 6 months, the newest filed Nov 2, 2026. Its Quality Score is 3 (Below Average). Scores as of 9:45 AM ET, 15 minutes behind.

Are ATEC insiders buying or selling?

3 insiders bought $2M across 4 filings in the last 6 months. No open-⁠market sales on record. The newest filing: David M. Demski, Director, bought $409K on Oct 30, 2026. 3 insiders bought ATEC in the last 6 months: Patrick Miles, Keith Valentine, and David M. Demski.

Who are ATEC's biggest insider sellers?

No ATEC insider sold shares on the open market in the last 6 months, as filed on Form 4.

When did an ATEC insider last buy?

David M. Demski, Director, bought ATEC shares ($409K) on Oct 30, 2026, filed Nov 2, 2026, the newest insider buy on record.

Alphatec Holdings's page has its Quality Score, its chart, and its earnings. More in Healthcare and Medical Devices. ATEC is on this week's insider buys.