As of September 09, 2026, the three largest insider holders of CTGO are Nieuwenhuyse Rick Van (President Ceo, 555.25K shares), Joseph G. Greenberg (Director, 209.28K shares), Joseph G. Greenberg (Director, 209.28K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Nieuwenhuyse Rick Van | President Ceo | 555,251 | 0 | 555,251 | 35.9% | 26 Jun, 2026 |
| 2 | Joseph G. Greenberg | Director | 209,282 | 0 | 209,282 | 13.5% | 04 Jan, 2022 |
| 3 | Joseph S Compofelice | Director | 167,548 | 0 | 167,548 | 10.8% | 21 Mar, 2025 |
| 4 | Curtis J. Freeman | Director | 162,626 | 0 | 162,626 | 10.5% | 21 Mar, 2025 |
| 5 | Shawn Khunkhun | President And Director | 90,389 | 0 | 90,389 | 5.8% | 09 Apr, 2026 |
| 6 | Richard Shortz | Director | 84,050 | 0 | 84,050 | 5.4% | 18 Aug, 2025 |
| 7 | Leah S Gaines | Chief Financial Officer | 71,235 | 0 | 71,235 | 4.6% | 07 Feb, 2023 |
| 8 | Michael Aaron Clark | Cfo | 54,709 | 0 | 54,709 | 3.5% | 19 Aug, 2026 |
| 9 | Darren Paul Devine | Director | 49,471 | 0 | 49,471 | 3.2% | 09 Apr, 2026 |
| 10 | Darwin Green | Director | 33,994 | 0 | 33,994 | 2.2% | 11 Jul, 2025 |
| 11 | Michael Andrew Cinnamond | Director | 26,494 | 0 | 26,494 | 1.7% | 06 Apr, 2026 |
| 12 | Clynton R. Nauman | Director | 24,550 | 0 | 24,550 | 1.6% | 07 Apr, 2026 |
| 13 | David Gregory Larimer | Vp Exploration | 17,997 | 0 | 17,997 | 1.2% | 19 Aug, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 19 Aug, 2026 | David Gregory Larimer | Vp Exploration | Disposed S | 96 | $20.94 | $2.01K | 17,997 | Direct |
| 19 Aug, 2026 | Michael Aaron Clark | Cfo | Disposed S | 1,289 | $20.94 | $26.99K | 54,709 | Direct |
| 25 Jun, 2026 | Nieuwenhuyse Rick Van | President Ceo | Acquired P | 4,111 | $15.24 | $62.65K | 555,251 | Direct |
| 08 Apr, 2026 | Shawn Khunkhun | President And Director | Acquired M | 20,650 | $12.46 | $257.30K | 90,389 | Direct |
| 08 Apr, 2026 | Darren Paul Devine | Director | Acquired M | 10,325 | $12.46 | $128.65K | 49,471 | Direct |
| 08 Apr, 2026 | Darren Paul Devine | Director | Disposed M | 10,325 | $12.46 | $128.65K | 0 | Direct |
| 08 Apr, 2026 | Shawn Khunkhun | President And Director | Disposed M | 20,650 | $12.46 | $257.30K | 0 | Direct |
| 01 Apr, 2026 | Clynton R. Nauman | Director | Acquired P | 10,000 | $18.56 | $185.60K | 24,550 | Direct |
| 02 Apr, 2026 | David Gregory Larimer | Vp Exploration | Acquired A | 5,300 | $0.00 | $0 | 18,093 | Direct |
| 02 Apr, 2026 | Michael Aaron Clark | Cfo Secretary | Acquired A | 16,200 | $0.00 | $0 | 55,998 | Direct |
| 02 Apr, 2026 | David Gregory Larimer | Vp Exploration | Acquired A | 5,300 | $0.00 | $0 | 18,093 | Direct |
| 02 Apr, 2026 | David Gregory Larimer | Vp Exploration | Acquired A | 5,300 | $0.00 | $0 | 18,093 | Direct |
| 02 Apr, 2026 | David Gregory Larimer | Vp Exploration | Acquired A | 5,300 | $0.00 | $0 | 18,093 | Direct |
| 02 Apr, 2026 | Michael Andrew Cinnamond | Director | Acquired A | 10,800 | $0.00 | $0 | 26,494 | Direct |
| 02 Apr, 2026 | Nieuwenhuyse Rick Van | President Ceo | Acquired A | 34,000 | $0.00 | $0 | 551,140 | Direct |
| 02 Apr, 2026 | David Gregory Larimer | Vp Exploration | Acquired A | 9,000 | $0.00 | $0 | 9,000 | Direct |
| 02 Apr, 2026 | Nieuwenhuyse Rick Van | President Ceo | Acquired A | 57,500 | $0.00 | $0 | 57,500 | Direct |
| 02 Apr, 2026 | David Gregory Larimer | Vp Exploration | Acquired A | 9,000 | $0.00 | $0 | 9,000 | Direct |
| 02 Apr, 2026 | David Gregory Larimer | Vp Exploration | Acquired A | 9,000 | $0.00 | $0 | 9,000 | Direct |
| 02 Apr, 2026 | Michael Aaron Clark | Cfo Secretary | Acquired A | 27,500 | $0.00 | $0 | 27,500 | Direct |