Alphatec (NASDAQ: ATEC) insider transactions
In the twelve months to 10 November 2026, executives and directors of Alphatec reported 39 open-market sales of 4,504,321 shares ($86.9m) and 6 open-market purchases of 345,000 shares ($2.7m), by 13 people, according to the Form 4 filings they submitted to the SEC.
Latest transactions
| Date | Insider | Role | Transaction | Shares | Price | Held after | Filing |
|---|---|---|---|---|---|---|---|
| 10 November 2026 | Valentine Keith | Director | Open-market purchase | +35,000 | $6.93 | 299,283 | Form 4 |
| 30 October 2026 | Demski David M | Director | Open-market purchase, 10b5-1 plan | +60,000 | $6.81 | 491,635 | Form 4 |
| 5 October 2026 | Carls Thomas Andrew | EVP, Data & Imaging Solutions | Grant or award | +200,000 | — | 202,520 | Form 4 |
| 10 September 2026 | Miles Patrick | CEO | Open-market purchase | +115,000 | $8.81 | 5,893,551 | Form 4 |
| 5 August 2026 | Marshall Tyson Eliot | General Counsel & Corp. Sec. | Open-market sale, 10b5-1 plan | −8,168 | $9.65 | 630,398 | Form 4 |
| 11 June 2026 | McGinnis Karen K | Director | Open-market sale, 10b5-1 plan | −6,050 | $8.01 | 94,671 | Form 4 |
| 10 June 2026 | McGinnis Karen K | Director | Grant or award, 10b5-1 plan | +32,012 | — | 100,721 | Form 4 |
| 10 June 2026 | Valentine Keith | Director | Grant or award | +32,012 | — | 264,283 | Form 4 |
| 10 June 2026 | Berkowitz Mortimer III | Director | Grant or award | +32,012 | — | 650,062 | Form 4 |
| 10 June 2026 | Demski David M | Director | Grant or award | +32,012 | — | 431,635 | Form 4 |
| 10 June 2026 | Blackford Quentin S. | Director | Grant or award | +32,012 | — | 600,381 | Form 4 |
| 10 June 2026 | Pelizzon David R | Director | Grant or award | +32,012 | — | 378,839 | Form 4 |
| 11 May 2026 | Valentine Keith | Director | Open-market purchase | +35,000 | $7.00 | 232,271 | Form 4 |
| 8 May 2026 | Valentine Keith | Director | Open-market purchase | +43,847 | $7.54 | 197,271 | Form 4 |
| 7 May 2026 | Valentine Keith | Director | Open-market purchase | +56,153 | $7.49 | 153,424 | Form 4 |
| 7 April 2026 | Marshall Tyson Eliot | General Counsel & Corp. Sec. | Option exercise | +15,000 | $1.98 | 574,459 | Form 4 |
| 7 April 2026 | Marshall Tyson Eliot | General Counsel & Corp. Sec. | Option exercise | +15,000 | $1.68 | 589,459 | Form 4 |
| 7 April 2026 | Marshall Tyson Eliot | General Counsel & Corp. Sec. | Option exercise | +12,500 | $3.34 | 601,959 | Form 4 |
| 7 April 2026 | Marshall Tyson Eliot | General Counsel & Corp. Sec. | Option exercise | +60,000 | $2.69 | 661,959 | Form 4 |
| 7 April 2026 | Marshall Tyson Eliot | General Counsel & Corp. Sec. | Shares withheld for tax | −23,393 | $11.03 | 638,566 | Form 4 |
Names appear as in the filing, surname first. A dash in the price column means the filing reports none, as in grants and gifts.
How to read the table
Only open-market purchases and sales are trades the insider chose to make at the market price, and they are the ones counted in the summary above. Grants, option exercises and shares withheld for tax come from pay plans. A sale marked as a 10b5-1 plan was scheduled in advance under a written plan.
Where each row comes from
From the Form 4 that each executive, director or large shareholder must file with the SEC within two business days of a transaction, read up to 10 November 2026. Each row links to its filing on EDGAR. Only transactions in shares are listed, not derivatives, and amended filings are left out. The accounts of the company are on the Alphatec page; the method, in data sources.
Information prepared from the Form 4 filings submitted to the SEC, for information purposes only. It is not financial advice or a recommendation to buy or sell. Updated on 12 November 2026.