Demski David M
- SEC CIK
- 0001555392
In the past year, 1 open-market sale filing worth $636.0K and no purchases.
Current role at each company
- ATEC Alphatec Holdings, Inc.Directoras of Jun 12, 2026
- FNA Paragon 28, Inc.Directoras of Apr 21, 2025
- AXNX Axonics, Inc.Directoras of Nov 15, 2024
- GMED Globus Medical IncPresident, CEOas of Jan 31, 2022
Open-market trades in the past year
Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.
- Bought
- –
- 0 filings
- Sold
- $636.0K
- 1 filing
- Net
- −$636.0K
- Bought minus sold
- Companies
- 1
- With open-market trades
Trades
Every Form 4 that lists Demski David M as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.
ATEC Alphatec Holdings, Inc.
Director4 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Dec 12, 2025 (view filing) | Dec 11 | 1 day | Demski David MDirector | SSale | −30.0K | $21.20 | −$636.0K | −7.0%399.6K after | |
| Aug 21, 2024 (view filing) | Aug 21 | Same day | Demski David MDirector | PPurchase | +50.0K | $5.67 | +$283.5K | +21.0%288.4K after | |
| Aug 5, 2024 (view filing) | Aug 2 | 3 days | Demski David MDirector | PPurchase | +40.0K | $6.56 | +$262.4K | +20.2%238.4K after | |
| Nov 13, 2023 (view filing) | Nov 9 | 4 days | Demski David MDirector | PPurchase | +30.0K | $10.50 | +$315.0K | +19.8%181.7K after |