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Insider Sale $MARI Marimaca Copper Corp.

Marimaca Copper Corp. executive Nicolas Cookson sold $140K of stock

Sep 10, 2026Reported
Insider trades at $MARI
$6.68 CAD-37.0% 1YInteractive chart →
$12.57$6.68$6.68Feb 26, 2026 · Assore International Holdings Limited bought 4,170,000 common shares at $10.00 · $41.70MOct 8, 2026 · Nicolas Cookson bought 3,250 common shares at $7.78 · $25KDec 11, 2025 · José Antonio Merino Morales sold -27,500 common shares at $11.02 · $303K Dec 10, 2025 · José Antonio Merino Morales sold -17,400 common shares at $10.91 · $190K Dec 9, 2025 · José Antonio Merino Morales sold -15,100 common shares at $10.98 · $166K×3Jan 27, 2026 · Nicolas Cookson sold -38,500 common shares at $11.54 · $444K Jan 27, 2026 · Nicolas Cookson sold -33,300 common shares at $11.50 · $383K Jan 26, 2026 · Nicolas Cookson sold -5,200 common shares at $12.20 · $63K Jan 28, 2026 · Nicolas Cookson sold -5,000 common shares at $12.20 · $61K×4Feb 26, 2026 · Greenstone Resources L.P. sold -8,543,892 common shares at $10.00 · $85.44M Feb 26, 2026 · Greenstone Resources L.P. sold -3,505,195 common shares at $10.00 · $35.05M Feb 26, 2026 · Greenstone Resources L.P. sold -1,648,194 common shares at $10.00 · $16.48M×3May 5, 2026 · Timothy Petterson sold -33,000 common shares at $7.82 · $258KSep 10, 2026 · Nicolas Cookson sold -15,413 common shares at $9.09 · $140KJan 7, 2026 · Greenstone Resources L.P. exercised 305,455 common shares at $5.00 · $1.53M Jan 6, 2026 · Nicolas Cookson exercised 61,659 common shares at $4.39 · $271K Jan 13, 2026 · Nicolas Cookson exercised -50,000 options at $3.69 · $185K Jan 13, 2026 · Nicolas Cookson exercised 35,121 common shares at $3.69 · $130K×4Apr 27, 2026 · Hayden Thomas Locke exercised -280,000 options at $5.00 · $1.40M Apr 27, 2026 · Timothy Petterson exercised -280,000 options at $5.00 · $1.40M Apr 27, 2026 · Hayden Thomas Locke exercised 126,323 common shares at $5.00 · $632K Apr 27, 2026 · Timothy Petterson exercised 112,134 common shares at $5.00 · $561K×4Aug 26, 2026 · Hayden Thomas Locke exercised -450,000 options at $8.70 · $3.92M Aug 26, 2026 · Hayden Thomas Locke exercised 259,138 common shares at $8.70 · $2.25M Aug 26, 2026 · Nicolas Cookson exercised -100,000 options at $8.70 · $870K Aug 26, 2026 · Nicolas Cookson exercised 57,586 common shares at $8.70 · $501K×4Sep 9, 2026 · Pui Wah Flora Lo exercised -1,667 rights restricted share units at $9.04 · $15K Sep 9, 2026 · Pui Wah Flora Lo exercised 1,667 common shares at $9.04 · $15K×2Oct 29, 2025Oct 30, 2026
insider buy (2) insider sell (12) insider option exercise (14) · glowing mark: this filing

Nicolas Cookson, executive of Marimaca Copper Corp. (TSX:MARI), sold 15,413 Common Shares on the open market at an average of $9.09, a $140K sale on Sep 10, 2026, disclosed Sep 11, 2026.

MARI closed at $9.51 on Sep 11, 2026, up 19% over the prior three months. In the 52 weeks to that date it closed between $6.92 and $12.57.

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