Alphatec (ATEC) Insider buying
5 open-market purchases of ATEC by Alphatec's executives and directors since May 2026, worth $2M in total, from SEC Form 4 filings.
Summary
The most recent: David M Demski, Director bought $408,600 on October 30, 2026.
The biggest buyer over the period is Patrick Miles (CEO): 1 purchase, $1M.
By year
| Year | Purchases | Value |
|---|---|---|
| 2026 | 5 | $2M |
Biggest buyers
| Insider | Buys | Value |
|---|---|---|
| Patrick Miles CEO | 1 | $1M |
| Keith Valentine Director | 3 | $996,192 |
| David M Demski Director | 1 | $408,600 |
Every purchase
Newest first. From SEC Form 4 filings. Insider buying across the market.
| Date | Insider | Shares | Price | Value | Filing |
|---|---|---|---|---|---|
| Oct 30, 2026 | M Demski David Director |
60,000 | $6.81 | $408,600 | Form 4 |
| Sep 10, 2026 | Miles Patrick CEO |
115,000 | $8.81 | $1M | Form 4 |
| May 11, 2026 | Valentine Keith Director |
35,000 | $7.00 | $245,000 | Form 4 |
| May 8, 2026 | Valentine Keith Director |
43,847 | $7.54 | $330,606 | Form 4 |
| May 7, 2026 | Valentine Keith Director |
56,153 | $7.49 | $420,586 | Form 4 |
Questions about Alphatec
Are Alphatec insiders buying the stock?
5 open-market purchases of ATEC by Alphatec's executives and directors since May 2026, worth $2M in total, from SEC Form 4 filings. The most recent: David M Demski, Director bought $408,600 on October 30, 2026.
What counts as insider buying here?
Open-market purchases (Form 4 code P) by officers and directors. Option exercises, grants and purchases by 10% owners are left out.
From Alphatec's annual reports filed with the SEC (XBRL data), standardised by Investingly. Information only, not investment advice.