Mortimer Berkowitz III sold $998k of ATEC
director at Alphatec Holdings, Inc.. 62,500 shares at an average of $15.97, traded Sep 9, 2025, filed Sep 11, 2025.
Score components
- +15RoleDirector
- +25Trade size$998k at market
- 0Share of holdings soldSold 9.2% of holdings
- +15Cluster3 insiders selling within 14 days
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001415889-25-024313, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Sep 9, 2025 | SOpen-market sale Common Stock | -62,500 | $15.97 | $998k | 618,050 | Sep 11, 2025 |
Related signals
Other insiders at Alphatec Holdings, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 58Moderate | ATECbuy Alphatec Holdings, Inc. | Patrick Miles CEO | $1.0M 115,000 shares | +2% | |
| 33Weak | Alphatec Holdings, Inc. | David Sponsel EVP, SALES | $2.1M 140,000 shares | -21% | |
| 45Moderate | Alphatec Holdings, Inc. | Patrick Miles CEO | $4.7M 300,000 shares | -5% | |
| 18Weak | Alphatec Holdings, Inc. | Scott Lish CHIEF OPERATING OFFICER | $101k 6,323 shares | -1% | |
| 26Weak | Alphatec Holdings, Inc. | Scott Lish CHIEF OPERATING OFFICER | $149k 9,302 shares | -1% | |
| 34Weak | Alphatec Holdings, Inc. | Craig E Hunsaker EVP, PEOPLE & CULTURE | $917k 60,876 shares | -4% | |
| 26Weak | Alphatec Holdings, Inc. | Tyson Eliot Marshall GENERAL COUNSEL & CORP. SEC. | $424k 30,970 shares | -7% | |
| 39Weak | Alphatec Holdings, Inc. | Scott Lish CHIEF OPERATING OFFICER | $952k 70,604 shares | -9% | |
| 15Weak | Alphatec Holdings, Inc. | Scott Lish CHIEF OPERATING OFFICER | $48k 3,982 shares | -1% | |
| 3Weak | Alphatec Holdings, Inc. | Tyson Eliot Marshall GENERAL COUNSEL & CORP. SEC. | $18k 1,500 shares | -0% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.