Demski David M
Director · ATEC, FNA
As of 2026-09-16, Demski David M has 8 Form 4 transactions on record across 2 companies — 2 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Reconstructed holdings
- Direct $4.5M
- Indirect $0
| ATEC | direct | 431,635 sh | $4.5M |
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2025-12-11 | ATEC | Sale | 30,000 @ $21.20 | $636K | −7.0% of holding | 399,623 | Form 4 |
7 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-06-10 | ATEC | Award / grant | 32,012 | 431,635 | Form 4 |
| 2025-06-11 | ATEC | Award / grant | 15,131 | 429,623 | Form 4 |
| 2025-04-21 | FNA | Disposition | 74,307 | 0 | Form 4 |
| 2025-04-21 | FNA | Disposition | 74,307 | 0 | Form 4 |
| 2024-12-18 | ATEC | Award / grant | 126,051 | 414,492 | Form 4 |
| 2024-12-18 | ATEC | Award / grant | 126,051 | 414,492 | Form 4 |
| 2024-12-10 | FNA | Award / grant | 34,207 | 74,307 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.