ALPHATEC HOLDNGS INC (ATEC) — large price moves

Health Care · NASDAQ

Single sessions where ATEC closed 10% or more away from the previous close, between 2025-10-08 and 2026-10-08. Each one lists the events filed in the 5 days ending at that session, in date order.

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Of the 6 moves listed, 5 have at least one filed event in the 5 days ending at the session, and 1 has none. Across the catalog most large moves have nothing filed near them, so an empty list is an ordinary result and not a gap.

Moves

2026-09-11 +19.7% $8.84 to $10.58 filed events in the 5 days to 2026-09-11
- 2026-09-10 Insider trade Open-market purchase reported by an insider1 transaction · 1 insider · $1,013,150Source: SEC Form 4
2026-05-12 +10.7% $6.99 to $7.74 filed events in the 5 days to 2026-05-12
- 2026-05-07 Insider trade Open-market purchase reported by an insider1 transaction · 1 insider · $420,586Source: SEC Form 4
- 2026-05-08 Insider trade Open-market purchase reported by an insider1 transaction · 1 insider · $330,606Source: SEC Form 4
- 2026-05-11 Insider trade Open-market purchase reported by an insider1 transaction · 1 insider · $245,000Source: SEC Form 4
2026-05-07 +10.9% $6.99 to $7.75 filed events in the 5 days to 2026-05-07
- 2026-05-05 Earnings Quarterly results reportedquarter ended 2026-03-31 · reported EPS USD 0.00 against an estimate of USD -0.00 · surprise +100.0%Source: SEC filing calendar + Yahoo earnings history
- 2026-05-05 Periodic filing 10-Q filedaccession 0001193125-26-206683Source: SEC EDGAR
- 2026-05-05 Material event 8-K filed (material event)accession 0001193125-26-206530Source: SEC EDGAR
- 2026-05-05 Filing language mdna changed in the 10-Qsection mdna · accession 0001193125-26-206683Source: SEC EDGAR (section comparison against the prior filing)
- 2026-05-07 Insider trade Open-market purchase reported by an insider1 transaction · 1 insider · $420,586Source: SEC Form 4
2026-05-06 -31.7% $10.23 to $6.99 filed events in the 5 days to 2026-05-06
- 2026-05-05 Earnings Quarterly results reportedquarter ended 2026-03-31 · reported EPS USD 0.00 against an estimate of USD -0.00 · surprise +100.0%Source: SEC filing calendar + Yahoo earnings history
- 2026-05-05 Periodic filing 10-Q filedaccession 0001193125-26-206683Source: SEC EDGAR
- 2026-05-05 Material event 8-K filed (material event)accession 0001193125-26-206530Source: SEC EDGAR
- 2026-05-05 Filing language mdna changed in the 10-Qsection mdna · accession 0001193125-26-206683Source: SEC EDGAR (section comparison against the prior filing)
2026-01-12 -22.3% $22.65 to $17.59 filed events in the 5 days to 2026-01-12

No filed event was recorded for this company in the 5 days ending on this session. That is what our sources hold, not a statement about what happened.
2025-10-31 +16.3% $16.33 to $18.99 filed events in the 5 days to 2025-10-31
- 2025-10-30 Earnings Quarterly results reportedquarter ended 2025-09-30 · reported EPS USD 0.03 against an estimate of USD -0.02 · surprise +233.4%Source: SEC filing calendar + Yahoo earnings history
- 2025-10-30 Periodic filing 10-Q filedaccession 0001193125-25-258790Source: SEC EDGAR

These are events filed near a session, listed by date. They are not ranked, and no connection between an event and a price move is stated or implied.

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Informational only — NOT financial advice. Price moves are computed from stored daily closes; filed events come from their own sources with their own dates.