ATEC
Alphatec Holdings, Inc. · Healthcare · Market cap $1.6B
Insiders bought $934K net in the last 90 days ·1 seller, 1 buyer· 1 of 1 sale under Rule 10b5-1 plans· latest Form 4 filed Sep 11, 2026
Insider Buying
$2.0M
reported purchases (SEC code P)
Insider Selling
$99.3M
reported sales (SEC code S)
Unique Insiders
14
in the rolling window
Latest filing
Sep 11, 2026
Miles Patrick
Alphatec Holdings, Inc. (ATEC) has 59 SEC Form 4 filings (91 transaction rows) in the rolling window, disclosed by 14 distinct insiders. Most recent filing: Sep 11, 2026.
Inside the rolling window, 14 insiders at Alphatec Holdings, Inc. reported 4 open-market purchases totaling $2.0M and 45 open-market sales totaling $99.3M. The most active filer is EVP, SALES Sponsel David with 7 filings. Insiders have net sold $2.3M over the trailing 6 months. The largest single insider purchase in this window was $1.0M by CEO Miles Patrick on Sep 10, 2026.
- Industry:Medical - Devices
- CEO:Patrick S. Miles
- Employees:913
- HQ:Carlsbad, CA, US
- IPO:2006-06-01
| Source | |||||||
|---|---|---|---|---|---|---|---|
Miles PatrickFirst in 8 months | CEO | Purchase | 115,000 | $1.0M | Sep 11 | — | SEC ↗ |
Marshall Tyson EliotFirst in 5 months | GENERAL COUNSEL & CORP. SEC. | Sale | 8,168 | $79K | Aug 8 | +11.5% | SEC ↗ |
MCGINNIS KAREN KFirst filing | Director | Sale | 6,050 | $48K | Jun 12 | +27.8% | SEC ↗ |
Valentine KeithFirst filing | Director | Purchase | 56,153 | $421K | May 11 | +51.4% | SEC ↗ |
Valentine KeithFirst filing | Director | Purchase | 43,847 | $331K | May 11 | +51.4% | SEC ↗ |
Valentine KeithFirst filing | Director | Purchase | 35,000 | $245K | May 11 | +51.4% | SEC ↗ |
Koning John ToddFirst filing | CHIEF FINANCIAL OFFICER | Sale | 79,789 | $986K | Mar 17 | -18.9% | SEC ↗ |
| CHIEF OPERATING OFFICER | Sale | 260,535 | $3.2M | Mar 17 | -18.9% | SEC ↗ | |
| EVP, SALES | Sale | 163,452 | $2.0M | Mar 13 | -13.8% | SEC ↗ | |
| EVP, PEOPLE & CULTURE | Sale | 33,602 | $411K | Mar 10 | -15.4% | SEC ↗ | |
| EVP, PEOPLE & CULTURE | Sale | 82,765 | $1.0M | Mar 10 | — | SEC ↗ | |
Marshall Tyson EliotFirst in 3 months | GENERAL COUNSEL & CORP. SEC. | Sale | 88,835 | $1.1M | Mar 9 | — | SEC ↗ |
| EVP, SALES | Sale | 60,425 | $833K | Feb 6 | — | SEC ↗ | |
| EVP, PEOPLE & CULTURE | Sale | 37,358 | $550K | Feb 4 | — | SEC ↗ | |
| CEO | Sale | 100,000 | $2.1M | Jan 6 | — | SEC ↗ | |
| CHIEF OPERATING OFFICER | Sale | 19,900 | $391K | Dec 18 | — | SEC ↗ | |
| Director | Sale | 250,000 | $4.9M | Dec 18 | — | SEC ↗ | |
| EVP, SALES | Sale | 21,106 | $439K | Dec 12 | — | SEC ↗ | |
Demski David MFirst filing | Director | Sale | 30,000 | $636K | Dec 12 | — | SEC ↗ |
| EVP, PEOPLE & CULTURE | Sale | 32,584 | $679K | Dec 12 | — | SEC ↗ | |
| 10% Owner | Sale | 221,166 | $4.7M | Dec 10 | — | SEC ↗ | |
| 10% Owner | Sale | 28,834 | $606K | Dec 10 | — | SEC ↗ | |
| 10% Owner | Sale | 221,166 | $4.7M | Dec 10 | — | SEC ↗ | |
| 10% Owner | Sale | 28,834 | $606K | Dec 10 | — | SEC ↗ | |
| 10% Owner | Sale | 221,166 | $4.7M | Dec 10 | — | SEC ↗ |
Frequently asked questions
How many SEC Form 4 insider filings does ATEC have?
Alphatec Holdings, Inc. (ATEC) has 59 SEC Form 4 filings (91 transaction rows) in the rolling 365-day window, disclosed by 14 distinct insiders. Most recent filing: Sep 11, 2026.
When was the most recent SEC Form 4 filing for ATEC?
The most recent Form 4 filing for ATEC on Tracefour is dated Sep 11, 2026.
Who is the most active insider at ATEC?
The most active SEC Form 4 filer at ATEC in the rolling window is EVP, SALES Sponsel David, with 7 filings.
What is the net insider flow at ATEC over the last 6 months?
Over the trailing 180 days, insiders at ATEC have net sold $2.3M based on SEC Form 4 disclosures.
What was the largest insider purchase at ATEC?
The largest single insider open-market purchase at ATEC in the rolling window was $1.0M by CEO Miles Patrick on 2026-09-10.
What is the total insider buy and sell value at ATEC in the current window?
Inside the rolling window, insiders at ATEC bought $2.0M and sold $99.3M based on SEC Form 4 filings.
Can I get alerts for ATEC insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at Alphatec Holdings, Inc. (ATEC). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
Alphatec Holdings, Inc. is in the Healthcare sector.