Insider at

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Insider transactions

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0 buys (P) 0 sells (S) Net: $0 + 57 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

57 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Dec. 17, 2021 HSDT P 3,000 $5.31 $15,930 3,937 Direct +320.17% Acquired -100.0% (price as of 2026-10-02)
Aug. 10, 2016 MTVA P 4,000 $10.00 $40,000 7,927 Direct +101.86% Acquired -100.0% (price as of 2026-10-02)
March 17, 2014 NUWE P 2,000 $6.18 $12,360 20,020 Direct +11.10% Acquired -100.0% (price as of 2026-10-02)

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.

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DateTickerSecurityUnderlying Exercise priceExpirationSharesA/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
June 23, 2025 NMTC Option to Purchase Common Stock Common Stock (50,000) $0.66 June 23, 2035 50,000 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 31, 2022 NMTC Option to Purchase Common Stock Common Stock (29,230) $1.14 May 31, 2032 29,230 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
June 2, 2021 NMTC Option to Purchase Common Stock Common Stock (4,682) $7.26 June 2, 2031 4,682 Acquired
May 25, 2021 HSDT Stock Option (Right to Buy) Class A Common Stock (3,063) $13.30 May 24, 2031 3,063 Acquired
June 15, 2020 NMTC Option to Purchase Common Stock Common Stock (34,020) $0.04 April 10, 2027 34,020 Disposed
June 2, 2020 NMTC Option to Purchase Common Stock Common Stock (23,725) $1.48 June 2, 2030 23,725 Acquired
Nov. 5, 2019 NMTC Option to Purchase Common Stock Common Stock (100,000) $2.14 Nov. 5, 2029 100,000 Acquired
June 4, 2019 NMTC Option to Purchase Common Stock Common Stock (14,995) $2.38 June 4, 2029 14,995 Acquired
May 13, 2019 NMTC Option to Purchase Common Stock Common Stock (45,605) $2.38 May 13, 2029 45,605 Acquired
Jan. 28, 2018 MTVA Employee Stock Option (right to buy) Common Stock (48,000) $10.10 Jan. 27, 2028 48,000 Acquired
Aug. 14, 2017 MTVA Employee Stock Option (right to buy) Common Stock (3,207) $3.59 Sept. 24, 2025 3,207 Disposed
Aug. 10, 2017 MTVA Employee Stock Option (right to buy) Common Stock (3,000) $3.59 Sept. 24, 2025 3,000 Disposed
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
Aug. 4, 2016 MTVA Employee Stock Option (right to buy) Common Stock (210,000) $10.00 Aug. 3, 2026 210,000 Acquired
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

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Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
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)

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Matched by name from proxy statements (DEF 14A) — verify against the filing.

HSDT

Treasurer and Secretary
Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
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 yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
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.