William Conkling

Companies

• IDT CorporationBoard member Jun 11, 2026 to now¹
• Proteon TherapeuticsChief Commercial Officer Jun 4, 2025 to now²
• Rafael Holdings, Inc.Chief executive officer Feb 3, 2022 to now³
• Cyclo Therapeutics, Inc.Board member May 8, 2023 to Mar 3, 2025⁴
• Rafael Holdings, Inc.Chief Commercial Officer Mar 18, 2021 to Apr 19, 2021⁵

Holdings

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

Shares held

• RRafael Holdings, Inc. RFL564,455 shares⁶$733.8K at $1.30Mar 25, 2025
• Proteon Therapeutics TARA69,992 shares⁷$166.6K at $2.38Jun 2, 2026
• CTCyclo Therapeutics, Inc.77,884 shares⁸Feb 27, 2025
• IDT Corporation IDT0 shares⁹Jun 11, 2026

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

Recent filings

• Jun 9, 2026Granted 673 shares at $55.75 of IDT Corporation¹⁰
• Jun 2, 2026Shares withheld for tax 6,008 shares at $4.34 of Proteon Therapeutics⁷
• Jan 16, 2026Granted 26,000 shares of Proteon Therapeutics¹¹
• Jun 2, 2025Granted 50,000 shares of Proteon Therapeutics¹²
• Mar 25, 2025Granted 27,454 shares of Rafael Holdings, Inc.⁶
• Mar 21, 2025Shares withheld for tax 14,814 shares at $1.93 of Rafael Holdings, Inc.¹³
• Feb 27, 2025Granted 27,654 shares of Cyclo Therapeutics, Inc.⁸
• Jan 13, 2025Granted 60,000 shares at $1.95 of Rafael Holdings, Inc.¹⁴
• Dec 21, 2024Shares withheld for tax 12,807 shares at $1.84 of Rafael Holdings, Inc.¹⁵
• Nov 15, 2024Granted 16,660 shares of Cyclo Therapeutics, Inc.¹⁶
• Oct 25, 2024Shares withheld for tax 3,431 shares at $1.84 of Rafael Holdings, Inc.¹⁷
• Sep 21, 2024Shares withheld for tax 12,696 shares at $1.73 of Rafael Holdings, Inc.¹⁸
• Aug 16, 2024Granted 8,731 shares of Cyclo Therapeutics, Inc.¹⁹
• Jun 21, 2024Shares withheld for tax 13,295 shares at $1.46 of Rafael Holdings, Inc.²⁰
• Jun 3, 2024Granted 8,594 shares of Cyclo Therapeutics, Inc.²¹
• Mar 21, 2024Shares withheld for tax 15,473 shares at $1.71 of Rafael Holdings, Inc.²²
• Feb 13, 2024Granted 6,330 shares of Cyclo Therapeutics, Inc.²³
• Dec 21, 2023Shares withheld for tax 13,602 shares at $1.82 of Rafael Holdings, Inc.²⁴
• Nov 28, 2023Granted 7,466 shares of Cyclo Therapeutics, Inc.²⁵
• Oct 25, 2023Granted 40,000 shares at $1.52 of Rafael Holdings, Inc.²⁶
• Sep 21, 2023Shares withheld for tax 13,669 shares at $2.21 of Rafael Holdings, Inc.²⁷
• Aug 18, 2023Granted 2,449 shares of Cyclo Therapeutics, Inc.²⁸
• Jun 21, 2023Shares withheld for tax 15,170 shares at $2.15 of Rafael Holdings, Inc.²⁹
• Mar 21, 2023Shares withheld for tax 15,625 shares at $1.67 of Rafael Holdings, Inc.³⁰
• Dec 21, 2022Shares withheld for tax 56,149 shares at $1.76 of Rafael Holdings, Inc.³¹