Richard E. Buller

Companies

• Celcuity Inc.Board member Dec 5, 2019 to now¹
• Rebus Holdings, Inc.Board member Oct 24, 2016 to Oct 24, 2016²

Holdings

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

Shares held

• CCelcuity Inc. CELC9,319 shares³$527.3K at $56.58Jun 9, 2026

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

Recent filings

• Jun 5, 2026Granted 1,530 shares of Celcuity Inc.³
• May 19, 2026Gift 1,029 shares of Celcuity Inc.⁴
• May 19, 2026Gift 1,029 shares of Celcuity Inc.⁴
• May 4, 2026Sold 365 shares at $143.24 of Celcuity Inc.⁵
• May 4, 2026Sold 2,825 shares at $142.04 of Celcuity Inc.⁵
• May 4, 2026Sold 2,301 shares at $141.03 of Celcuity Inc.⁵
• May 4, 2026Sold 1,670 shares at $139.58 of Celcuity Inc.⁵
• May 4, 2026Sold 550 shares at $139.00 of Celcuity Inc.⁵
• May 4, 2026Sold 1,289 shares at $137.00 of Celcuity Inc.⁵
• May 4, 2026Exercised options 9,000 shares at $5.10 of Celcuity Inc.⁵
• Mar 31, 2026Sold 675 shares at $110.83 of Celcuity Inc.⁶
• Mar 31, 2026Sold 2,325 shares at $110.11 of Celcuity Inc.⁶
• Mar 31, 2026Exercised options 3,000 shares at $5.10 of Celcuity Inc.⁶
• Dec 5, 2025Sold 1,510 shares at $106.04 of Celcuity Inc.⁷
• Dec 5, 2025Sold 1,490 shares at $105.34 of Celcuity Inc.⁷
• Dec 5, 2025Exercised options 3,000 shares at $5.50 of Celcuity Inc.⁷
• Dec 2, 2025Gift 500 shares of Celcuity Inc.⁸
• Dec 1, 2025Sold 1,100 shares at $98.13 of Celcuity Inc.⁸
• Dec 1, 2025Exercised options 1,100 shares at $14.83 of Celcuity Inc.⁸
• Nov 20, 2025Sold 3,900 shares at $96.73 of Celcuity Inc.⁹
• Nov 20, 2025Exercised options 3,900 shares at $14.83 of Celcuity Inc.⁹
• Nov 19, 2025Gift 500 shares of Celcuity Inc.⁹
• May 27, 2025Gift 1,079 shares of Celcuity Inc.¹⁰
• May 27, 2025Gift 1,079 shares of Celcuity Inc.¹⁰
• May 19, 2025Granted 1,029 shares of Celcuity Inc.¹¹