Richard Grondin

Companies

• Perma-Fix Environmental ServicesEVP of Waste Treatment Ops Jul 27, 2020 to now¹

Holdings

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

Shares held

• PFPerma-Fix Environmental Services PESI41,308 shares²$492.8K at $11.93Jan 20, 2026

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

Recent filings

• Jan 20, 2026Shares withheld for tax 1,729 shares at $13.71 of Perma-Fix Environmental Services²
• Jan 20, 2026Exercised options 6,000 shares at $3.95 of Perma-Fix Environmental Services²
• Jan 20, 2026Shares withheld for tax 2,555 shares at $13.71 of Perma-Fix Environmental Services²
• Jan 20, 2026Exercised options 5,000 shares at $7.01 of Perma-Fix Environmental Services²
• Jul 14, 2025Shares withheld for tax 2,094 shares at $11.32 of Perma-Fix Environmental Services³
• Jul 14, 2025Exercised options 6,000 shares at $3.95 of Perma-Fix Environmental Services³
• Jul 14, 2025Shares withheld for tax 3,094 shares at $11.32 of Perma-Fix Environmental Services³
• Jul 14, 2025Exercised options 5,000 shares at $7.01 of Perma-Fix Environmental Services³
• Mar 26, 2024Shares withheld for tax 2,048 shares at $11.57 of Perma-Fix Environmental Services⁴
• Mar 26, 2024Exercised options 6,000 shares at $3.95 of Perma-Fix Environmental Services⁴
• Mar 26, 2024Shares withheld for tax 6,054 shares at $11.57 of Perma-Fix Environmental Services⁴
• Mar 26, 2024Exercised options 10,000 shares at $7.01 of Perma-Fix Environmental Services⁴
• Mar 26, 2024Shares withheld for tax 545 shares at $11.57 of Perma-Fix Environmental Services⁴
• Mar 26, 2024Exercised options 2,000 shares at $3.15 of Perma-Fix Environmental Services⁴
• Oct 2, 2023Shares withheld for tax 2,491 shares at $10.12 of Perma-Fix Environmental Services⁵
• Oct 2, 2023Exercised options 8,000 shares at $3.15 of Perma-Fix Environmental Services⁵
• Oct 2, 2023Shares withheld for tax 7,118 shares at $10.12 of Perma-Fix Environmental Services⁵
• Oct 2, 2023Exercised options 20,000 shares at $3.60 of Perma-Fix Environmental Services⁵
• Sep 8, 2022Bought 1,000 shares at $4.87 of Perma-Fix Environmental Services⁶