William B. Horne

Companies

• Alzamend Neuro, Inc.Board member Jun 14, 2021 to now¹
• Hyperscale Data, Inc.Chief executive officer Feb 2, 2021 to now²
• Hyperscale Data, Inc.Board member Oct 19, 2016 to now³
• RiskOn International, Inc.Board member Feb 6, 2024 to Feb 6, 2024⁴
• GRESHAM WORLDWIDE, INC.Board member Sep 19, 2022 to Sep 19, 2022⁵
• Ault Disruptive Technologies CorpBoard member Dec 16, 2021 to Dec 16, 2021⁶
• Ault Disruptive Technologies CorpChief executive officer Dec 16, 2021 to Dec 16, 2021⁶
• Hyperscale Data, Inc.President Sep 21, 2020 to Sep 21, 2020⁷
• Hyperscale Data, Inc.Chief financial officer Jan 30, 2018 to Jan 10, 2019⁸
• Birchtech Corp.Board member Mar 3, 2006 to Apr 14, 2010⁹
• Birchtech Corp.Chief financial officer Mar 3, 2006 to Apr 17, 2007⁹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• HDHyperscale Data, Inc. GPUS6,000 shares¹⁰$900 at $0.15Sep 30, 2026
• GWGRESHAM WORLDWIDE, INC.0 shares¹¹Sep 19, 2022
• ANAlzamend Neuro, Inc. ALZN0 shares¹²Dec 19, 2025

As of each latest filing. The line shows shares held over time.

Recent filings

• Sep 30, 2026Bought 100,000 shares at $0.16 of Hyperscale Data, Inc.¹⁰
• Sep 29, 2026Bought 100,000 shares at $0.17 of Hyperscale Data, Inc.¹³
• Sep 16, 2026Bought 1,000 shares at $18.00 of Hyperscale Data, Inc.¹⁴
• Sep 8, 2026Bought 60,000 shares at $0.19 of Hyperscale Data, Inc.¹⁵
• Sep 4, 2026Bought 100,000 shares at $0.20 of Hyperscale Data, Inc.¹⁵
• Sep 2, 2026Bought 100,000 shares at $0.20 of Hyperscale Data, Inc.¹⁶
• Jun 29, 2026Bought 5,000 shares at $19.00 of Hyperscale Data, Inc.¹⁷
• Jun 11, 2026Bought 200,000 shares at $0.17 of Hyperscale Data, Inc.¹⁸
• Dec 19, 2025Sold 3,333 shares at $2.12 of Alzamend Neuro, Inc.¹²
• Mar 26, 2025Bought 3,334 shares at $0.99 of Alzamend Neuro, Inc.¹⁹
• Mar 20, 2025Bought 5,000 shares at $0.98 of Alzamend Neuro, Inc.²⁰
• Mar 18, 2025Bought 5,000 shares at $0.97 of Alzamend Neuro, Inc.²¹
• Mar 18, 2025Exercised options 10,000 shares at $0.06 of Alzamend Neuro, Inc.²¹
• Dec 30, 2024Sold 2 shares at $5.21 of Hyperscale Data, Inc.²²
• Feb 24, 2023Exercised options 500,000 shares of Alzamend Neuro, Inc.²³
• Jan 9, 2023Exercised options 300,000 shares of Hyperscale Data, Inc.²⁴
• Nov 15, 2022Exercised options 100,000 shares of Hyperscale Data, Inc.²⁵
• May 15, 2022Exercised options 66,667 shares of Hyperscale Data, Inc.²⁶
• Apr 26, 2022Exercised options 250,000 shares of Alzamend Neuro, Inc.²⁷
• Jan 24, 2022Exercised options 150,000 shares of Alzamend Neuro, Inc.²⁸
• Dec 1, 2021Exercised options 1,250 shares of Hyperscale Data, Inc.²⁹
• Nov 15, 2021Exercised options 66,667 shares of Hyperscale Data, Inc.³⁰