ATEC — Alphatec Holdings, Inc.
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-08-25.
Performance
Technicals
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Measured signals that fired on ATEC
| date | signal | measured base rate |
|---|---|---|
| 2026-08-06 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-07-28 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-07-15 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-06-04 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-05-01 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-04-30 | Equal lows taken out structure | -0.64% over 21 days · t = -4.75 · n = 55,661 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-08-05 | Marshall Tyson Eliot GENERAL COUNSEL & CORP. SEC. | Open-market sale 10b5-1 plan | 8.2K | 9.65 | 78.8K |
| 2026-06-11 | MCGINNIS KAREN K Director | Open-market sale 10b5-1 plan | 6.0K | 8.01 | 48.5K |
| 2026-06-10 | Demski David M Director | Grant or award | 32.0K | 0.00 | 0 |
| 2026-06-10 | MCGINNIS KAREN K Director | Grant or award 10b5-1 plan | 32.0K | 0.00 | 0 |
| 2026-06-10 | Valentine Keith Director | Grant or award | 32.0K | 0.00 | 0 |
| 2026-06-10 | Blackford Quentin S. Director | Grant or award | 32.0K | 0.00 | 0 |
| 2026-06-10 | Berkowitz Mortimer III Director | Grant or award | 32.0K | 0.00 | 0 |
| 2026-06-10 | Pelizzon David R Director | Grant or award | 32.0K | 0.00 | 0 |
| 2026-05-11 | Valentine Keith Director | Open-market purchase | 35.0K | 7.00 | 245.0K |
| 2026-05-08 | Valentine Keith Director | Open-market purchase | 43.8K | 7.54 | 330.6K |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| BlackRock, Inc. | 109.8M | 10.1M |
| AMERICAN CENTURY COMPANIES INC | 69.9M | 6.4M |
| VANGUARD CAPITAL MANAGEMENT LLC | 53.5M | 4.9M |
| ROYAL BANK OF CANADA | 49.1M | 4.5M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 39.3M | 3.6M |
| STATE STREET CORP | 33.0M | 3.0M |
| GEODE CAPITAL MANAGEMENT, LLC | 31.6M | 2.9M |
| Nuveen, LLC | 31.0M | 2.8M |
| MILLENNIUM MANAGEMENT LLC | 30.6M | 2.8M |
| BANK OF AMERICA CORP /DE/ | 27.9M | 2.6M |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Recent headlines
- Alphatec (ATEC) Q2 2026 Earnings Call Transcript · 2026-08-12
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