Mark Damian Tattoli

Companies

• Core LaboratoriesSVP, Gen Counsel & Secretary May 2, 2023 to now¹
• CORE LABORATORIES N VSVP, Gen Counsel & Secretary Jul 12, 2021 to Feb 21, 2023²

Holdings

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

Shares held

• Core Laboratories CLB29,458 shares³$297.2K at $10.09Aug 4, 2026
• CLCORE LABORATORIES N V6,923 shares⁴Dec 2, 2022

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

Recent filings

• Aug 1, 2026Exercised options 250 shares of Core Laboratories³
• Aug 1, 2026Shares withheld for tax 99 shares at $10.64 of Core Laboratories³
• May 1, 2026Exercised options 250 shares of Core Laboratories⁵
• May 1, 2026Shares withheld for tax 97 shares at $14.07 of Core Laboratories⁵
• Dec 31, 2025Exercised options 24,952 shares of Core Laboratories⁶
• Dec 31, 2025Shares withheld for tax 14,310 shares at $16.03 of Core Laboratories⁶
• Oct 1, 2025Exercised options 700 shares of Core Laboratories⁷
• Oct 1, 2025Shares withheld for tax 276 shares at $12.58 of Core Laboratories⁷
• Aug 1, 2025Exercised options 250 shares of Core Laboratories⁸
• Aug 1, 2025Shares withheld for tax 99 shares at $10.53 of Core Laboratories⁸
• May 1, 2025Exercised options 200 shares of Core Laboratories⁹
• May 1, 2025Shares withheld for tax 79 shares at $11.68 of Core Laboratories⁹
• May 1, 2025Exercised options 250 shares of Core Laboratories⁹
• May 1, 2025Shares withheld for tax 99 shares at $11.68 of Core Laboratories⁹
• Dec 31, 2024Exercised options 9,604 shares of Core Laboratories¹⁰
• Dec 31, 2024Shares withheld for tax 5,028 shares at $17.31 of Core Laboratories¹⁰
• Oct 1, 2024Exercised options 700 shares of Core Laboratories¹¹
• Oct 1, 2024Shares withheld for tax 276 shares at $19.21 of Core Laboratories¹¹
• Aug 1, 2024Exercised options 120 shares of Core Laboratories¹²
• Aug 1, 2024Shares withheld for tax 48 shares at $23.24 of Core Laboratories¹²
• Aug 1, 2024Exercised options 250 shares of Core Laboratories¹²
• Aug 1, 2024Shares withheld for tax 99 shares at $23.24 of Core Laboratories¹²
• May 1, 2024Exercised options 200 shares of Core Laboratories¹³
• May 1, 2024Shares withheld for tax 79 shares at $15.71 of Core Laboratories¹³
• May 1, 2024Exercised options 250 shares of Core Laboratories¹³