MATHIESEN JEFFREY S
Director · Officer · HSDT
As of 2026-09-16, MATHIESEN JEFFREY S has 7 Form 4 transactions on record across 1 company — 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 $60K
- Indirect $0
| HSDT | direct | 26,200 sh | $60K |
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 |
|---|
7 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-04-03 | — | Award / grant | 26,036 | 26,036 | Form 4 |
| 2026-04-03 | — | Award / grant | 41,929 | 156,343 | Form 4 |
| 2025-07-02 | HSDT | Award / grant | 26,200 | 26,200 | Form 4 |
| 2025-06-23 | — | Award / grant | 50,000 | 50,000 | Form 4 |
| 2025-02-14 | — | Award / grant | 17,025 | 17,025 | Form 4 |
| 2025-02-14 | — | Award / grant | 27,778 | 114,414 | Form 4 |
| 2025-01-06 | HSDT | Award / grant | 139,857 | 139,857 | 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.