Who
John Todd Koning
Chief Financial Officer
Company insider
Files Form 4 as: Chief Financial Officer, Alphatec Holdings; SVP, Chief Accounting Officer, Masimo.
In numbers
- Trades disclosed
- 41
- Buys
- 1
- Sells
- 8
- Bought
- $56K
- Sold
- $6.9M
- Companies
- 2
- Companies where not an officer
- 0
- First trade
- 26 Feb 2021
- Last trade
- 13 Mar 2026
- Last filed
- 17 Mar 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 13 Mar 2026filed 17 Mar 2026 | ATEC Alphatec HoldingsMedical Devices | SEC FORM 4 Sold | $986K79,789 at $12.36 | filing |
| 13 Mar 2026filed 17 Mar 2026 | ATEC Alphatec HoldingsMedical Devices | SEC FORM 4 Sold | $986K79,789 at $12.36 | filing |
| 5 Mar 2026filed 9 Mar 2026 | ATEC Alphatec HoldingsMedical Devices | SEC FORM 4 Code F | $866K68,910 at $12.57 | filing |
| 5 Mar 2026filed 9 Mar 2026 | ATEC Alphatec HoldingsMedical Devices | SEC FORM 4 Code F | $866K68,910 at $12.57 | filing |
| 25 Feb 2026filed 27 Feb 2026 | ATEC Alphatec HoldingsMedical Devices | SEC FORM 4 Code A | —205,094 at $0.00 | filing |
| 25 Feb 2026filed 27 Feb 2026 | ATEC Alphatec HoldingsMedical Devices | SEC FORM 4 Code A | —110,394 at $0.00 | filing |
| 25 Feb 2026filed 27 Feb 2026 | ATEC Alphatec HoldingsMedical Devices | SEC FORM 4 Code A | —20,380 | filing |
| 25 Feb 2026filed 27 Feb 2026 | ATEC Alphatec Holdingsoption or derivative · Medical Devices | SEC FORM 4 Code A | —55,197 at $0.00 | filing |
| 25 Feb 2026filed 27 Feb 2026 | ATEC Alphatec Holdingsoption or derivative · Medical Devices | SEC FORM 4 Code A | —55,197 at $0.00 | filing |
| 25 Feb 2026filed 27 Feb 2026 | ATEC Alphatec Holdingsoption or derivative · Medical Devices | SEC FORM 4 Code A | —55,197 at $0.00 | filing |
| 25 Feb 2026filed 27 Feb 2026 | ATEC Alphatec Holdingsoption or derivative · Medical Devices | SEC FORM 4 Code A | —55,197 at $0.00 | filing |
| 25 Feb 2026filed 27 Feb 2026 | ATEC Alphatec HoldingsMedical Devices | SEC FORM 4 Code A | —205,094 at $0.00 | filing |
| 25 Feb 2026filed 27 Feb 2026 | ATEC Alphatec HoldingsMedical Devices | SEC FORM 4 Code A | —110,394 at $0.00 | filing |
| 25 Feb 2026filed 27 Feb 2026 | ATEC Alphatec HoldingsMedical Devices | SEC FORM 4 Code A | —20,380 | filing |
| 8 Dec 2025filed 10 Dec 2025 | ATEC Alphatec HoldingsMedical Devices | SEC FORM 4 Code F | $327K15,266 at $21.45 | filing |
| 6 Aug 2025filed 7 Aug 2025 | ATEC Alphatec HoldingsMedical Devices | SEC FORM 4 Code F | $82K5,315 at $15.34 | filing |
| 22 Apr 2025filed 23 Apr 2025 | ATEC Alphatec HoldingsMedical Devices | SEC FORM 4 Sold | $402K37,500 at $10.71 | filing |
| 1 Apr 2025filed 3 Apr 2025 | ATEC Alphatec HoldingsMedical Devices | SEC FORM 4 Code A | —20,929 | filing |
| 10 Mar 2025filed 12 Mar 2025 | ATEC Alphatec HoldingsMedical Devices | SEC FORM 4 Sold | $1.6M165,121 at $9.72 | filing |
| 29 Jan 2025filed 31 Jan 2025 | ATEC Alphatec HoldingsMedical Devices | SEC FORM 4 Code A | —120,952 at $0.00 | filing |
News
Sanuwave Health (NASDAQ:SNWV) & Alphatec (NASDAQ:ATEC) Head-To-Head ContrastATEC · dailypolitical.com · 11 Oct 2026
0 headlines in the last 90 days name John Todd Koning; 1 article from the last 14 days about the 1 company they traded most, at most three about any one of them.