Cadiz CDZI Insider Ownership

Updated Oct 10, 2026

Across the past 12 months, open-market trades by Cadiz insiders totaled $507,762 in purchases (110.86K shares) and $10,825 in sales (2.5K shares).

• Among Cadiz's insiders, David Mark O'Hara (Director) was the largest open-market buyer over the past 12 months, purchasing $507,762 of stock (110.86K shares), most recently on May 26, 2026.
• On the selling side, Cathryn Rivera (Chief Operating Officer) sold the most Cadiz stock on the open market over the past 12 months, $10,825 (2.5K shares), most recently on May 20, 2026.
• Beyond open-market trades, insiders at Cadiz received 992.99K shares in stock awards and acquired 63.42K shares through option exercises and conversions in the last 12 months.
• According to Business Quant data, insiders at Cadiz reported 26.02Mn shares in total in their latest Form 4 filings, up 3.08% from 25.24Mn shares at the end of Q2 2026 and up 5.38% from 24.69Mn shares at the end of Q3 2025.
• By type of ownership, CDZI insiders hold 12.16% of their shares directly (3.16Mn shares) and 87.84% indirectly (22.85Mn shares).
• CDZI's insider total is spread across 13 insiders who have filed a Form 4 in the past two years.
• CDZI's three largest insider shareholders, per their latest Form 4 filings, are Heerema International Group Services SA (10% owner, 22.78Mn shares), Susan P. Kennedy (Chief Executive Officer, 1.17Mn shares) and Jacinto J. Hernandez (Chief Financial Officer, 800K shares).
• The largest insider, Heerema International Group Services SA, holds 87.57% of CDZI's insider total.
• Institutions held 46.70% of Cadiz's outstanding shares in their Q2 2026 13F filings, insiders about 30.91% based on their latest Form 4 filings, and other investors, including the public, the remaining 22.39%.
• Over the past 12 months, 12 insiders reported transactions in Cadiz stock in 20 Form 4 filings.
• The insider holdings and trades above for Cadiz reflect Form 4 filings through October 5, 2026.