Qu Shawn Xiaohua 4

What Happened
Qu Shawn Xiaohua, a 10% owner of Canadian Solar Inc. (CSIQ), converted/exercised 4,582 restricted stock units (RSUs) on May 21, 2026, resulting in the acquisition of 4,582 common shares at a $0.00 exercise price. To cover tax withholding, 3 shares were disposed of at $16.34 each, totaling $49. The filing shows both the derivative conversion (M) and the tax-withholding disposition (F).

Key Details

• Transaction date: 2026-05-21; Form 4 filed 2026-05-22 (timely).
• Primary codes: M = exercise/conversion of derivative (4,582 shares, $0.00), F = tax withholding (3 shares disposed @ $16.34, $49).
• Footnote: These are RSUs and "have no expiration date" (F1).
• Shares owned after transaction: not reported in the provided excerpt of the filing.
• Filing timeliness: appears filed promptly the next day (no late filing flag in provided data).

Context
This was an RSU settlement (derivative conversion), not an open-market purchase or sale; the small share disposition was tax withholding (cashless withholding), a routine step when RSUs vest/settle. As a 10% owner, Qu is a significant shareholder — these transactions reflect share delivery and withholding rather than a market buy/sell decision.