Alphatec Holdings, Inc. insider trading
ATEC$10.03+0.13 (+1.31% today)
“Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise.”
Insider Trading vs Stock Price
Insider Trading vs Stock Price data
Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (-27.1%). 0 insider transactions plotted in this window as 0 markers; nearby trades of the same kind are grouped.
| Date | Category | Person | Role | Action | Amount | Change in holding |
|---|
Open market purchase
Open market sellNet dollar flow · Buy / Sell balance
PremiumQ2 '25Q3 '25Q4 '25Q1 '26Q2 '26Q3 '26
Unlock quarterly net flowKey players
- JNJennifer N. Pritzker8.7185%
- DRDavid R. Pelizzon6.9756%
- SCSquadron Capital Holdings LLC6.8922%
- SCSquadron Capital LLC6.8922%
- PMPatrick Miles3.9847%
- WWWard W. Woods Jr.1.4313%
- CECraig E. Hunsaker1.1173%
- MBMortimer Berkowitz III0.8165%
- SLScott Lish0.5281%
- TETyson Eliot Marshall0.4082%
AI Activity Analysis
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Insider activity
Fromto
| Company | Insider / role | Action | ΔOwn | Avg price | Amount | ||
|---|---|---|---|---|---|---|---|
| ATEC | Patrick Miles | Open market purchase$1.01M | +1.9% | $8.81 | $1.01M | Sep 10, 2026 | Sep 10, 2026 |
| ATEC | Tyson Eliot Marshall | Open market sell$78.8K | -1.3% | $9.65 | $78.8K | Aug 5, 2026 | Aug 7, 2026 |
| ATEC | Karen K. McGinnis | Open market sell$48.5K | -6.0% | $8.01 | $48.5K | Jun 11, 2026 | Jun 12, 2026 |
| ATEC | Keith Valentine | Open market purchase$245K | +17.7% | $7.00 | $245K | May 11, 2026 | May 11, 2026 |
| ATEC | Keith Valentine | Open market purchase$331K | +28.6% | $7.54 | $331K | May 8, 2026 | May 11, 2026 |
| ATEC | Keith Valentine | Open market purchase$421K | +57.7% | $7.49 | $421K | May 7, 2026 | May 11, 2026 |
| ATEC | Scott Lish | Open market sell$3.2M | -24.2% | $12.30 | $3.2M | Mar 13, 2026 | Mar 17, 2026 |
| ATEC | John Todd Koning | Open market sell$986K | -11.7% | $12.36 | $986K | Mar 13, 2026 | Mar 17, 2026 |
| ATEC | David Sponsel | Open market sell$2.05M | -24.5% | $12.52 | $2.05M | Mar 11, 2026 | Mar 13, 2026 |
| ATEC | Craig E. Hunsaker | Open market sell$1.03M | -4.6% | $12.45 | $1.03M | Mar 9, 2026 | Mar 10, 2026 |
| ATEC | Craig E. Hunsaker | Open market sell$411K | -1.8% | $12.22 | $411K | Mar 6, 2026 | Mar 10, 2026 |
| ATEC | Tyson Eliot Marshall | Open market sell$1.11M | -13.7% | $12.49 | $1.11M | Mar 5, 2026 | Mar 9, 2026 |
| ATEC | David Sponsel | Open market sell$833K | -14.7% | $13.79 | $833K | Feb 5, 2026 | Feb 6, 2026 |
| ATEC | Craig E. Hunsaker | Open market sell$550K | -3.1% | $14.71 | $550K | Feb 3, 2026 | Feb 4, 2026 |
| ATEC | Patrick Miles | Open market sell$2.1M | -1.8% | $21.01 | $2.1M | Jan 5, 2026 | Jan 6, 2026 |
| ATEC | Scott Lish | Open market sell$391K | -3.0% | $19.64 | $391K | Dec 16, 2025 | Dec 18, 2025 |
| ATEC | David R. Pelizzon | Open market sell$4.92M | -2.3% | $19.66 | $4.92M | Dec 16, 2025 | Dec 18, 2025 |
| ATEC | David M. Demski | Open market sell$636K | -7.0% | $21.20 | $636K | Dec 11, 2025 | Dec 12, 2025 |
| ATEC | David Sponsel | Open market sell$439K | -4.6% | $20.79 | $439K | Dec 10, 2025 | Dec 12, 2025 |
| ATEC | Craig E. Hunsaker | Open market sell$679K | -2.5% | $20.84 | $679K | Dec 10, 2025 | Dec 12, 2025 |
| ATEC | Squadron Capital LLC | Open market sell$606K | -0.3% | $21.03 | $606K | Dec 9, 2025 | Dec 10, 2025 |
| ATEC | David R. Pelizzon | Open market sell$606K | -0.3% | $21.03 | $606K | Dec 9, 2025 | Dec 10, 2025 |
| ATEC | Squadron Capital Holdings LLC | Open market sell$606K | -0.3% | $21.03 | $606K | Dec 9, 2025 | Dec 10, 2025 |
| ATEC | Jennifer N. Pritzker | Open market sell$606K | -0.3% | $21.03 | $606K | Dec 9, 2025 | Dec 10, 2025 |
| ATEC | David Sponsel | Open market sell$21.2K | -0.2% | $21.45 | $21.2K | Dec 8, 2025 | Dec 10, 2025 |
| ATEC | Squadron Capital LLC | Open market sell$4.69M | -2.0% | $21.20 | $4.69M | Dec 8, 2025 | Dec 10, 2025 |
| ATEC | David R. Pelizzon | Open market sell$4.69M | -2.0% | $21.20 | $4.69M | Dec 8, 2025 | Dec 10, 2025 |
| ATEC | Squadron Capital Holdings LLC | Open market sell$4.69M | -2.0% | $21.20 | $4.69M | Dec 8, 2025 | Dec 10, 2025 |
| ATEC | Jennifer N. Pritzker | Open market sell$4.69M | -2.0% | $21.20 | $4.69M | Dec 8, 2025 | Dec 10, 2025 |
| ATEC | Scott Lish | Open market sell$233K | -1.6% | $21.47 | $233K | Dec 5, 2025 | Dec 9, 2025 |
| ATEC | Tyson Eliot Marshall | Open market sell$278K | -3.6% | $21.47 | $278K | Dec 5, 2025 | Dec 9, 2025 |
| ATEC | Tyson Eliot Marshall | Open market sell$213K | -2.7% | $21.48 | $213K | Dec 5, 2025 | Dec 9, 2025 |
| ATEC | Patrick Miles | Open market sell$2.21M | -1.8% | $22.11 | $2.21M | Dec 1, 2025 | Dec 3, 2025 |
| ATEC | Squadron Capital LLC | Open market sell$5.16M | -2.2% | $20.62 | $5.16M | Nov 24, 2025 | Nov 25, 2025 |
| ATEC | David R. Pelizzon | Open market sell$5.16M | -2.2% | $20.62 | $5.16M | Nov 24, 2025 | Nov 25, 2025 |
| ATEC | Jennifer N. Pritzker | Open market sell$5.16M | -2.2% | $20.62 | $5.16M | Nov 24, 2025 | Nov 26, 2025 |
| ATEC | Squadron Capital Holdings LLC | Open market sell$5.16M | -2.2% | $20.62 | $5.16M | Nov 24, 2025 | Nov 26, 2025 |
| ATEC | Tyson Eliot Marshall | Open market sell$1.37M | -16.0% | $19.51 | $1.37M | Nov 20, 2025 | Nov 21, 2025 |
| ATEC | Squadron Capital LLC | Open market sell$5.2M | -2.2% | $20.80 | $5.2M | Nov 12, 2025 | Nov 14, 2025 |
| ATEC | David R. Pelizzon | Open market sell$5.2M | -2.1% | $20.80 | $5.2M | Nov 12, 2025 | Nov 14, 2025 |
| ATEC | Squadron Capital Holdings LLC | Open market sell$5.2M | -2.2% | $20.80 | $5.2M | Nov 12, 2025 | Nov 14, 2025 |
| ATEC | Jennifer N. Pritzker | Open market sell$5.2M | -2.2% | $20.80 | $5.2M | Nov 12, 2025 | Nov 14, 2025 |
| ATEC | Jeffrey P. Rydin | Open market sell$3.86M | -34.2% | $19.32 | $3.86M | Nov 3, 2025 | Nov 5, 2025 |
| ATEC | Patrick Miles | Open market sell$1.9M | -1.8% | $18.96 | $1.9M | Nov 3, 2025 | Nov 5, 2025 |
| ATEC | Craig E. Hunsaker | Open market sell$2M | -7.2% | $19.95 | $2M | Oct 31, 2025 | Oct 31, 2025 |
| ATEC | David Sponsel | Open market sell$1.13M | -13.2% | $16.18 | $1.13M | Oct 24, 2025 | Oct 28, 2025 |