ATEC insider buying
2 cluster buysAlphatec Holdings, Inc. · Healthcare
When two or more insiders at Alphatec Holdings, Inc. buy ATEC on the open market around the same time, that clustered conviction is one of the highest-signal patterns in SEC filing data. Below is every cluster we've detected in ATEC plus the full record of qualifying open-market buys, each parsed directly from Form 4 filings and linked back to the source on SEC EDGAR.
Detected clusters
- Aug 21 – Aug 23, 2024Detected Aug 23, 20243 insidersTotal bought$585.1KMarket cap$1.4B
- Aug 2 – Aug 2, 2024Detected Aug 2, 20242 insidersTotal bought$517.9KMarket cap$1.4B
All notable open-market buys in ATEC
Every open-market Form 4 purchase, newest first. Click an insider to see their full buying record across companies.
| Date | Insider | Shares | Price | Value | Filing |
|---|---|---|---|---|---|
| May 11, 2026 | Director | 35,000 | $7.00 | $245.0K | SEC ↗ |
| May 8, 2026 | Director | 43,847 | $7.54 | $330.6K | SEC ↗ |
| May 7, 2026 | Director | 56,153 | $7.49 | $420.6K | SEC ↗ |
| Aug 23, 2024 | Bakst Evancluster Director | 35,000 | $5.76 | $201.6K | SEC ↗ |
| Aug 23, 2024 | Pelizzon David Rcluster Director, 10% Owner | 16,978 | $5.89 | $100.0K | SEC ↗ |
| Aug 21, 2024 | Demski David Mcluster Director | 50,000 | $5.67 | $283.5K | SEC ↗ |
| Aug 2, 2024 | Demski David Mcluster Director | 40,000 | $6.56 | $262.4K | SEC ↗ |
| Aug 2, 2024 | Valentine Keithcluster Director | 39,000 | $6.55 | $255.5K | SEC ↗ |
More Healthcare stocks with insider cluster buys
ATEC insider buying — FAQ
- Are insiders buying ATEC stock?
- Yes — 4 distinct insiders have bought ATEC (Alphatec Holdings, Inc.) on the open market, including 2 cluster buys where two or more insiders bought within a rolling window. The most recent qualifying activity was May 11, 2026.
- How much ATEC stock have insiders bought?
- Insiders have bought a combined $2.1M of ATEC across 8 open-market purchases, based on SEC Form 4 filings.
- What is an insider cluster buy in ATEC?
- A cluster buy is two or more distinct Alphatec Holdings, Inc. insiders — officers, directors, or 10% owners — each buying ATEC on the open market within a rolling window. ATEC has 2 detected cluster buys to date.
- Where does this ATEC insider trading data come from?
- Every figure is parsed directly from SEC Form 4 filings on EDGAR, and each purchase on this page links back to its original filing document.
How we track insider buying in ATEC
We continuously poll SEC EDGAR for new Form 4 filings and parse every open-market purchase (transaction code P). A cluster is recorded when two or more distinct insiders — officers, directors, or 10% owners — each buy ATEC within a rolling window. We track clusters at every company size, from micro-caps to mega-caps. Every figure on this page traces back to an official filing; open any row to jump straight to the source document. What counts as a cluster buy?
This page is informational and reflects public filing data. It is not investment advice or a recommendation regarding ATEC.