JEFFREY S MATHIESEN
CIK 1296853 · CFO and Treasurer · last filed 2026-04-07
JEFFREY S MATHIESEN is a CFO and Treasurer who has filed 51 SEC Form 4 insider transactions across 5 companies since 2016. The most recent filing, for NMTC, was dated Apr 7, 2026. Across all open-market trades the lifetime net is +$55.9K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $525.1K across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$525.1K
5
51
$55.9K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| NMTC | Director | 156,343 | $3.24 | $506.6K | $0 | 6 | 2026-04-07 |
| HSDT | CFO and Treasurer | 11,948 | $1.54 | $18.4K | $15.9K | 10 | 2025-07-03 |
| PBLA | Director | 10,191 | $0.01 | $113 | $0 | 3 | 2023-03-29 |
| HCTI | Director | — | $2.23 | — | $0 | 1 | 2022-08-22 |
| MetaVia Inc. (GEMP) Delisted | Chief Financial Officer | 14,134 | — | — | $40.0K | 6 | 2018-01-30 |
Recent Filings
51 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-04-07 | NMTC | Grant (A) | +41,929 | $0 | EDGAR |
| 2025-07-03 | HSDT | Grant (A) | — | $0 | EDGAR |
| 2025-06-25 | NMTC | Grant (A) | — | $0 | EDGAR |
| 2025-02-19 | NMTC | Grant (A) | +27,778 | $0 | EDGAR |
| 2025-01-08 | HSDT | Grant (A) | — | $0 | EDGAR |
| 2024-07-05 | HSDT | Grant (A) | — | $0 | EDGAR |
| 2023-03-29 | PBLA | Grant (A) | — | $0 | EDGAR |
| 2023-03-20 | NMTC | Grant (A) | +20,576 | $0 | EDGAR |
| 2023-02-16 | HSDT | Grant (A) | — | $0 | EDGAR |
| 2022-09-14 | HSDT | Grant (A) | — | $0 | EDGAR |