Ralph Alexander

Companies

• Tailwind 2.0 Acquisition Corp.Board member Nov 6, 2025 to now¹
• Net Power Inc.Board member Jun 12, 2023 to now²
• Enviva, LLCBoard member Apr 28, 2015 to Dec 10, 2024³
• Talen EnergyBoard member Jun 8, 2015 to Jun 8, 2015⁴
• Stein MartBoard member Sep 6, 2007 to Jan 16, 2014⁵
• AmyrisBoard member Sep 27, 2010 to Jul 23, 2012⁶
• Foster WheelerBoard member May 10, 2006 to Nov 16, 2006⁷

Holdings

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

Shares held

• NPNet Power Inc. NPWR176,151 shares⁸$177.9K at $1.01Jun 3, 2026
• EEnviva, LLC0 shares⁹Dec 6, 2024

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

Recent filings

• Jun 3, 2026Granted 71,770 shares of Net Power Inc.⁸
• Jun 3, 2025Granted 67,568 shares of Net Power Inc.¹⁰
• Dec 6, 2024Returned to company 8,115 shares of Enviva, LLC⁹
• Dec 6, 2024Returned to company 21,034 shares of Enviva, LLC⁹
• Jun 4, 2024Granted 15,369 shares of Net Power Inc.¹¹
• Jan 31, 2024Exercised options 6,463 shares of Enviva, LLC¹²
• Sep 1, 2023Granted 21,444 shares of Net Power Inc.¹³
• Jun 15, 2023Exercised options 2,651 shares at $37.71 of Enviva, LLC¹⁴
• May 9, 2023Bought 10,870 shares at $9.08 of Enviva, LLC¹⁵
• Feb 1, 2023Exercised options 2,081 shares of Enviva, LLC¹⁶
• Oct 13, 2022Bought 3,850 shares at $51.68 of Enviva, LLC¹⁷
• Mar 4, 2022Bought 1,620 shares at $77.06 of Enviva, LLC¹⁸
• Mar 3, 2022Bought 1,614 shares at $77.28 of Enviva, LLC¹⁸