Alphatec Holdings (ATEC): Oberweis Asset Management Inc exited its position 1.33M shares

1.33M

Prior-quarter shares · no longer reported

Holdings as of

Sep 30, 2024

Filed

Nov 14, 2024

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

What came next

1. Nov 20, 2024InsiderCEO sold ~$502K of ATEC shares in the open market
2. Nov 21, 2024InsiderCEO sold ~$505K of ATEC shares in the open market
3. Dec 11, 2024InsiderOfficer sold ~$601K of ATEC shares in the open market
4. Jan 10, 2025InsiderOfficer sold ~$2.4K of ATEC shares in the open market
5. Jan 13, 2025InsiderOfficer sold ~$624K of ATEC shares in the open market
6. Jan 21, 2025InsiderCEO sold ~$80K of ATEC shares in the open market
7. Jan 29, 2025InsiderCEO sold ~$602K of ATEC shares in the open market
8. Jan 30, 2025InsiderCEO sold ~$521K of ATEC shares in the open market
9. Feb 3, 2025InsiderOfficer sold ~$414K of ATEC shares in the open market
10. Feb 5, 2025InsiderCEO sold ~$519K of ATEC shares in the open market
11. Feb 6, 2025InsiderOfficer sold ~$315K of ATEC shares in the open market
12. Feb 24, 2025InsiderOfficer sold ~$139K of ATEC shares in the open market
13. Feb 25, 2025InsiderOfficer sold ~$202K of ATEC shares in the open market
14. Feb 26, 2025InsiderCEO sold ~$353K of ATEC shares in the open market
15. Feb 27, 2025InsiderOfficer sold ~$279K of ATEC shares in the open market
16. Mar 3, 2025InsiderDirector sold ~$470K of ATEC shares in the open market
17. Mar 6, 2025InsiderOfficer sold ~$365K of ATEC shares in the open market
18. Mar 7, 2025InsiderCEO sold ~$135K of ATEC shares in the open market
19. Mar 10, 2025Insider · 2 peopleInsiders: 2 sales (~$1.9M)

How to read SEC Form 13F-HR

Form 13F is the quarterly report in which investment managers that oversee $100 million or more list the US-listed stocks and some other securities they held on the last day of the quarter.

Full guide: What is an SEC Form 13F?

What else is on file for Alphatec Holdings

For Alphatec Holdings, OQRO holds 2 insider filings (SEC Form 4 or Form 144) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its ATEC page.

How this filing works

• SEC Form 13F

Other disclosures at Alphatec Holdings

• SEC Form 4Nov 11, 2026
• SEC Form 4Nov 2, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRMay 15, 2026
• SEC Form 13F-HRMay 15, 2026

Everything OQRO holds on this company is on its ATEC page.