Alphatec Holdings Inc
Ownership
Ownership Structure
Who owns Alphatec Holdings Inc (ATEC)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 79.0% of the shares are freely tradable; institutional investors hold 77.4%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 6.53 | 10,088,182 | -0.7 | 03/31/2026 |
| American Century Companies Inc | 4.22 | 6,521,659 | +1.5 | 06/30/2026 |
| Vanguard Capital Management, LLC | 3.18 | 4,913,779 | +0.0 | 03/31/2026 |
| Royal Bank of Canada | 2.92 | 4,516,592 | -8.1 | 03/31/2026 |
| BNP Paribas Investment Partners SA | 2.34 | 3,616,330 | +13.8 | 03/31/2026 |
| State Street Corp | 1.96 | 3,031,164 | +4.9 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| American Century Small Cap Growth Inv | 3.17 | 4,902,028 | +0.0 | 06/30/2026 |
| American Century U.S. Small Cap Growth | 3.17 | 4,902,028 | +0.0 | 06/30/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 2.36 | 3,649,925 | +0.0 | 07/31/2026 |
| iShares Russell 2000 ETF | 2.06 | 3,175,323 | -0.6 | 08/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Miles Patrick | CEO | 5,893,551 | 60,703,575 $ | Sep 10, 2026 | direct |
| Marshall Tyson Eliot | GENERAL COUNSEL & CORP. SEC. | 630,398 | 6,493,099 $ | Aug 5, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 10, 2026 | Miles Patrick | CEO | Buy | 115,000 | 8.81 | 1,013,150 |
| Aug 5, 2026 | Marshall Tyson Eliot | GENERAL COUNSEL & CORP. SEC. | Sell | 8,168 | 9.65 | 78,821 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 17, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.