Koning John Todd (CIK 1830843) reported 13 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-17). Recent activity: Sell ATEC (79,789 shares), Sell ATEC (68,910 shares), Buy ATEC (205,094 shares), Buy ATEC (110,394 shares), Buy ATEC (20,380 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-17 | Alphatec Holdings, Inc. (ATEC) | CHIEF FINANCIAL OFFICER | Sell | 79,789 | $986,192 |
| 2026-03-09 | Alphatec Holdings, Inc. (ATEC) | CHIEF FINANCIAL OFFICER | Sell | 68,910 | $866,199 |
| 2026-02-27 | Alphatec Holdings, Inc. (ATEC) | CHIEF FINANCIAL OFFICER | Buy | 205,094 | $0 |
| 2026-02-27 | Alphatec Holdings, Inc. (ATEC) | CHIEF FINANCIAL OFFICER | Buy | 110,394 | $0 |
| 2026-02-27 | Alphatec Holdings, Inc. (ATEC) | CHIEF FINANCIAL OFFICER | Buy | 20,380 | $0 |
| 2025-12-10 | Alphatec Holdings, Inc. (ATEC) | CHIEF FINANCIAL OFFICER | Sell | 15,266 | $327,456 |
| 2025-08-07 | Alphatec Holdings, Inc. (ATEC) | CHIEF FINANCIAL OFFICER | Sell | 5,315 | $81,532 |
| 2025-04-23 | Alphatec Holdings, Inc. (ATEC) | CHIEF FINANCIAL OFFICER | Sell | 37,500 | $401,625 |
| 2025-04-03 | Alphatec Holdings, Inc. (ATEC) | CHIEF FINANCIAL OFFICER | Buy | 20,929 | $0 |
| 2025-03-12 | Alphatec Holdings, Inc. (ATEC) | CHIEF FINANCIAL OFFICER | Sell | 165,121 | $1.6M |
| 2025-01-31 | Alphatec Holdings, Inc. (ATEC) | CHIEF FINANCIAL OFFICER | Buy | 120,952 | $0 |
| 2025-01-31 | Alphatec Holdings, Inc. (ATEC) | CHIEF FINANCIAL OFFICER | Buy | 114,322 | $0 |
| 2025-01-31 | Alphatec Holdings, Inc. (ATEC) | CHIEF FINANCIAL OFFICER | Buy | 19,598 | $0 |
Source: SEC Form 4 filings · as of 2026-03-17