Richard E. Buller

Sits on 1 board. Last updated September 28, 2026

Time on boards

Boards served
1
Current seats
1
Board service
4 years
Director since
2023

4 years of board service in total across 1 board, counting each seat separately. Longest: Celcuity Inc., 3 years.

Celcuity Inc. Director
3 years ยท Since 2023

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Date Company Transaction Shares Price Value
Jun 5, 2026 Celcuity Inc. Grant or award +1,530 โ€” โ€”
May 19, 2026 Celcuity Inc. Gift โˆ’1,029 โ€” โ€”
May 19, 2026 Celcuity Inc. Gift +1,029 โ€” โ€”
May 4, 2026 Celcuity Inc. Option exercise +9,000 $5.10 $45,900
May 4, 2026 Celcuity Inc. Open-market sale โˆ’1,289 $137.00 $176,593
May 4, 2026 Celcuity Inc. Open-market sale โˆ’550 $139.00 $76,450
May 4, 2026 Celcuity Inc. Open-market sale โˆ’1,670 $139.58 $233,099
May 4, 2026 Celcuity Inc. Open-market sale โˆ’2,301 $141.03 $324,510
May 4, 2026 Celcuity Inc. Open-market sale โˆ’2,825 $142.04 $401,263
May 4, 2026 Celcuity Inc. Open-market sale โˆ’365 $143.24 $52,283
Mar 31, 2026 Celcuity Inc. Option exercise +3,000 $5.10 $15,300
Mar 31, 2026 Celcuity Inc. Open-market sale โˆ’2,325 $110.11 $256,006
Mar 31, 2026 Celcuity Inc. Open-market sale โˆ’675 $110.83 $74,810
Dec 5, 2025 Celcuity Inc. Option exercise +3,000 $5.50 $16,500
Dec 5, 2025 Celcuity Inc. Open-market sale โˆ’1,490 $105.34 $156,957

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