Dastoor Michael 4/A

What Happened
Michael Dastoor, a director of Columbus McKinnon Corp (CMCO), acquired 3,256 common shares on January 1, 2026 through the conversion/distribution of deferred stock units (reported as an exercise/conversion of a derivative). The shares were issued at $0.00 per share; a fractional portion (0.8290 units) was paid in cash totaling $14.34. This Form 4 is amended to correct the number of shares previously reported.

Key Details

• Transaction date: 2026-01-01 (reported on amended Form 4 filed 2026-03-02).
• Transaction type/code: Exercise/conversion of derivative (M).
• Shares acquired: 3,256 shares issued; 0.8290 DSU paid in cash ($14.34).
• Price paid for shares: $0.00 (common for distributions/conversions of deferred compensation).
• Footnotes: F1 clarifies 3,256.8290 deferred stock units were distributed (3,256 shares + .8290 cash). F2 notes this filing corrects a previously misstated share amount.
• Shares owned after transaction: Not disclosed in the information provided in this summary.

Context
This was a conversion/distribution of deferred compensation (deferred stock units), not an open-market purchase or sale. Such distributions are routine compensation events for insiders and do not necessarily signal a buy/sell opinion about the stock. The amendment corrects the previously reported number of shares; investors should refer to the amended Form 4 for the official record.