Jeffrey S Mathiesen
CIK 1296853 · View on SEC EDGAR ↗
Insider
First SEC filing: Jan. 16, 2014 · Latest: June 16, 2020
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 24 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
24 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Dec. 17, 2021 | HSDT | P | 3,000 | $5.31 | $15,930 | 3,937 Direct | +320.17% | Acquired | -100.0% (price as of 2026-08-19) |
| Aug. 10, 2016 | MTVA | P | 4,000 | $10.00 | $40,000 | 7,927 Direct | +101.86% | Acquired | -100.0% (price as of 2026-08-19) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| April 3, 2026 | NMTC | Option to Purchase Common Stock | Common Stock (26,036) | $0.80 | April 2, 2036 | 26,036 | Acquired |
| July 2, 2025 | HSDT | Stock Option (Right to Buy) | Class A Common Stock (26,200) | $9.76 | July 1, 2035 | 26,200 | Acquired |
| Feb. 14, 2025 | NMTC | Option to Purchase Common Stock | Common Stock (17,025) | $1.20 | Feb. 14, 2035 | 17,025 | Acquired |
| Jan. 6, 2025 | HSDT | Stock Option (Right to Buy) | Class A Common Stock (139,857) | $0.73 | Jan. 5, 2035 | 139,857 | Acquired |
| July 2, 2024 | HSDT | Stock Option (Right to Buy) | Class A Common Stock (404,000) | $0.96 | July 1, 2034 | 404,000 | Acquired |
| March 16, 2023 | NMTC | Option to Purchase Common Stock | Common Stock (18,927) | $1.62 | March 16, 2033 | 18,927 | Acquired |
| Feb. 14, 2023 | HSDT | Stock Option (Right to Buy) | Common Stock (2,693,000) | $0.31 | Feb. 13, 2033 | 2,693,000 | Acquired |
| Sept. 13, 2022 | HSDT | Stock Option (Right to Buy) | Common Stock (18,000) | $0.54 | Sept. 12, 2032 | 18,000 | Acquired |
| May 23, 2022 | HSDT | Stock Option (Right to Buy) | Common Stock (37,000) | $4.68 | May 22, 2032 | 37,000 | Acquired |
| June 14, 2021 | HSDT | Stock Option (Right to Buy) | Common Stock (77,250) | $15.57 | June 13, 2031 | 77,250 | Acquired |
| May 25, 2021 | HSDT | Stock Option (Right to Buy) | Class A Common Stock (3,063) | $13.30 | May 24, 2031 | 3,063 | Acquired |
| Aug. 10, 2017 | MTVA | Employee Stock Option (right to buy) | Common Stock (3,000) | $3.59 | Sept. 24, 2025 | 3,000 | Disposed |
| Aug. 10, 2016 | MTVA | 8% Convertible Subordinated Promissory Note | Common Stock (3,927) | $6.71 | — | — | Disposed |
| Nov. 12, 2012 | NUWE | Employee Stock Option - Right to Buy | Common Stock (67,000) | $6.46 | Nov. 11, 2022 | 67,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 10 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| June 16, 2020 | HSDT | Stock Option (Right to Buy)→ Class A Common Stock | — | Direct |
| June 12, 2020 | HSDT | Stock Option (Right to Buy)→ Class A Common Stock (36,697) | 36,697 | Direct |
| Aug. 4, 2017 | NMTC | Stock Option (right to buy)→ Common Stock (34,020) | 34,020 | Direct |
| Aug. 4, 2016 | MTVA | Employee Stock Option (right to buy)→ Common Stock (51,300) | 51,300 | Direct |
| Aug. 4, 2016 | MTVA | 8% Convertible Subordinated Promissory Note→ Common Stock | — | Direct |
| Feb. 14, 2012 | NUWE | Common Stock | 11,875 | Indirect |
| Feb. 14, 2012 | NUWE | Common Stock | 2,500 | Direct |
| Feb. 14, 2012 | NUWE | Employee Stock Option - Right to Buy→ Common Stock (52,575) | 52,575 | Direct |
| Feb. 14, 2012 | NUWE | Employee Stock Option - Right to Buy→ Common Stock (5,000) | 5,000 | Direct |
| Feb. 14, 2012 | NUWE | Common Stock Warrant - Right to Buy→ Common Stock (4,313) | 4,313 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
HSDT
Treasurer and Secretary| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2023 | $370,000 | — | — | $579,803 | $74,000 | — | $34,642 | $1,058,445 |
| 2022 | $351,750 | — | $0 | $28,173 | $70,350 | — | $12,845 | $463,463 |
| 2021 | $183,996 | — | $18,024 | $1,139,698 | $68,954 | — | $11,385 | $1,422,057 |
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2016 | $280,645 | $15,000 | — | $1,326,718 | $97,500 | — | $97 | $1,719,960 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.