Lawrence Joseph Stack

Companies

• Quantum SoftwareChief Commercial Officer Jun 4, 2026 to now¹
• ProcoreChief Revenue Officer Feb 16, 2024 to now²

Holdings

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

Shares held

• Procore PCOR179,285 shares³$10.4M at $57.99Apr 2, 2026
• Quantum Software QNT178,337 shares⁴$6.3M at $35.29Jun 4, 2026

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

Recent filings

• Feb 20, 2026Shares withheld for tax 4,843 shares at $52.02 of Procore⁵
• Dec 2, 2025Sold 10,000 shares at $75.30 of Procore⁶
• Nov 20, 2025Shares withheld for tax 7,080 shares at $71.74 of Procore⁷
• Aug 20, 2025Shares withheld for tax 7,080 shares at $65.34 of Procore⁸
• Jun 12, 2025Sold 2,500 shares at $65.33 of Procore⁹
• May 20, 2025Shares withheld for tax 7,080 shares at $69.94 of Procore¹⁰
• May 9, 2025Sold 1,000 shares at $65.60 of Procore¹¹
• Mar 31, 2025Granted 57,500 shares of Procore¹²
• Feb 21, 2025Sold 12,000 shares at $82.92 of Procore¹³
• Feb 20, 2025Shares withheld for tax 20,283 shares at $86.48 of Procore¹³
• Feb 15, 2024Granted 193,651 shares of Procore¹⁴