James Brian Windsor

Companies

• Rein Therapeutics, Inc.Board member May 13, 2026 to now¹
• Rein Therapeutics, Inc.Chief executive officer Dec 4, 2024 to now²
• Rein Therapeutics, Inc.President Nov 21, 2023 to now³
• Rein Therapeutics, Inc.Officer Nov 2, 2023 to now⁴
• Rein Therapeutics, Inc.Chief operating officer Nov 21, 2023 to Mar 6, 2024³
• TFF Pharmaceuticals, Inc.Board member Oct 24, 2019 to Dec 9, 2020⁵
• TFF Pharmaceuticals, Inc.Chief Science Officer Oct 24, 2019 to Dec 9, 2020⁵

Holdings

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

Shares held

• RTRein Therapeutics, Inc. RNTX27,271 shares⁶$17.8K at $0.65Apr 30, 2026

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

Recent filings

• Apr 30, 2026Bought 25,000 shares at $1.00 of Rein Therapeutics, Inc.⁶
• Dec 5, 2024Bought 161 shares at $2.25 of Rein Therapeutics, Inc.⁷
• Dec 5, 2024Bought 239 shares at $2.24 of Rein Therapeutics, Inc.⁷
• Mar 5, 2024Exercised options 2,000 shares of Rein Therapeutics, Inc.⁸
• Dec 15, 2023Bought 225 shares at $3.37 of Rein Therapeutics, Inc.⁹
• Nov 20, 2023Bought 5,076 shares at $1.97 of Rein Therapeutics, Inc.¹⁰