// company-profile
Alphatec Holdings, Inc.
ATEC// activity-summary
Recent insider activity is bullish. Over the last 30 days, 6 insiders purchased shares. Buying was led by Blackford Quentin S..
// 90-day insight
Over the last 90 days, Alphatec Holdings, Inc. insiders bought $1.3M (17 transactions) and sold $258K (1 transaction).
- Most active insider: Marshall Tyson Eliot with 9 transactions totaling $516K.
- Largest single purchase: $421K by Valentine Keith on May 7, 2026.
- 50% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Alphatec Holdings, Inc. as of 2026-03-31
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 11, 2026 | MCGINNIS KAREN K | ATEC | Sale10b5 | 6,050 | $8.01 | $48K |
| Jun 10, 2026 | Blackford Quentin S. | ATEC | Award | 32,012 | $0.00 | $0K |
| Jun 10, 2026 | MCGINNIS KAREN K | ATEC | Award | 32,012 | $0.00 | $0K |
| Jun 10, 2026 | Berkowitz Mortimer III | ATEC | Award | 32,012 | $0.00 | $0K |
| Jun 10, 2026 | Pelizzon David R | ATEC | Award | 32,012 | $0.00 | $0K |
45 more transactions hidden
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