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START FREE TRIAL →David M Demski, Director, is a corporate insider tracked by InsiderTape across 1 company. The public record shows 4 open-market SEC Form 4 transactions: 3 purchases worth $861K and 1 sale worth $636K, reported from Nov 9, 23 to Dec 11, 25. Over this period they have been a net buyer.
| Date | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| Dec 11, 25 | ATECAlphatec Holdings, Inc. | SELL | 30.0K | $21.20 | $636K |
| Aug 21, 24 | ATECAlphatec Holdings, Inc. | BUY | 50.0K | $5.67 | $284K |
| Aug 2, 24 | ATECAlphatec Holdings, Inc. | BUY | 40.0K | $6.56 | $262K |
| Nov 9, 23 | ATECAlphatec Holdings, Inc. | BUY | 30.0K | $10.50 | $315K |