SXI · Standex International Corp/De/ · Insider Trading

Sale of stock pursuant to existing 10b5-1 trading plan dated November 6, 2025.

Sale of stock pursuant to existing 10b5-1 trading plan dated May 21, 2026.

The price reported is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $289.25 to $297.69, inclusive. The reporting person undertakes to provide to the staff of the Securities and Exchange Commission, the Corporation or any security holder of the Corporation, upon request, full information regarding the number of shares sold at each separate price.

Sale of stock pursuant to existing 10b5-1 trading plan dated May 21, 2026.

The price reported is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $289.25 to $296.63, inclusive. The reporting person undertakes to provide to the staff of the Securities and Exchange Commission, the Corporation or any security holder of the Corporation, upon request, full information regarding the number of shares sold at each separate price.

The price reported is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $300.49 to $308.885, inclusive. The reporting person undertakes to provide to the staff of the Securities and Exchange Commission, the Corporation or any security holder of the Corporation, upon request, full information regarding the number of shares sold at each separate price.

The price reported is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $302.21 to $304.42, inclusive. The reporting person undertakes to provide to the staff of the Securities and Exchange Commission, the Corporation or any security holder of the Corporation, upon request, full information regarding the number of shares sold at each separate price.

Contingent Purchase of Phantom Stock of the Company pursuant to the Management Stock Purchase Plan component of the 2018 Omnibus Incentive Plan vesting three years after the date of purchase in the form of Common Stock.

Grant of Restricted Stock Units pursuant to the 2018 Omnibus Incentive Plan of the Company which vests one-third per year on each anniversary of the date of the award.

Award of Performance Share Units pursuant to the 2018 Omnibus Incentive Plan of the Company. These shares cliff vest at the end of a three year performance period with the ultimate number of shares ranging from 0 to 250% of the award based on achievement against Company performance metrics of the three year period.

Premium Priced Stock Option with exercise price 10% above the closing market price on the date of grant. Option vests 25% per year on each anniversary of the date of the award for four years. This option expires ten years from the date of grant.

Premium Priced Stock Option with exercise price 10% above the closing market price on the date of grant. Option vests 25% per year on each anniversary of the date of the award for four years. This option expires ten years from the date of grant.

Premium Priced Stock Option with exercise price 10% above the closing market price on the date of grant. Option vests 25% per year on each anniversary of the date of the award for four years.

Contingent Purchase of Phantom Stock of the Company pursuant to the Management Stock Purchase Plan component of the 2018 Omnibus Incentive Plan vesting three years after the date of purchase in the form of Common Stock.

Award of Performance Share Units pursuant to the 2018 Omnibus Incentive Plan of the Company. These shares cliff vest at the end of a three year performance period with the ultimate number of shares ranging from 0 to 250% of the award based on achievement against Company performance metrics of the three year period.

Premium Priced Stock Option with exercise price 10% above the closing market price on the date of grant. Option vests 25% per year on each anniversary of the date of the award for four years.

Grant of Restricted Stock Units pursuant to the 2018 Omnibus Incentive Plan of the Company which vests one-third per year on each anniversary of the date of the award.

Contingent Purchase of Phantom Stock of the Company pursuant to the Management Stock Purchase Plan component of the 2018 Omnibus Incentive Plan vesting three years after the date of purchase in the form of Common Stock.

Contingent Purchase of Phantom Stock of the Company pursuant to the Management Stock Purchase Plan component of the 2018 Omnibus Incentive Plan vesting three years after the date of purchase in the form of Common Stock.

Grant of Restricted Stock Units pursuant to the 2018 Omnibus Incentive Plan of the Company which vests one-third per year on each anniversary of the date of the award.

Award of Performance Share Units pursuant to the 2018 Omnibus Incentive Plan of the Company. These shares cliff vest at the end of a three year performance period with the ultimate number of shares ranging from 0 to 250% of the award based on achievement against Company performance metrics of the three year period.

Grant of Restricted Stock Units pursuant to the 2018 Omnibus Incentive Plan of the Company which vests one-third per year on each anniversary of the date of the award.

Grant of Restricted Stock Units pursuant to the 2018 Omnibus Incentive Plan of the Company which vests one-third per year on each anniversary of the date of the award.

Grant of Restricted Stock Units pursuant to the 2018 Omnibus Incentive Plan of the Company which vests one-third per year on each anniversary of the date of the award.

Award of Performance Share Units pursuant to the 2018 Omnibus Incentive Plan of the Company. These shares cliff vest at the end of a three year performance period with the ultimate number of shares ranging from 0 to 250% of the award based on achievement against Company performance metrics of the three year period.

Award of Performance Share Units pursuant to the 2018 Omnibus Incentive Plan of the Company. These shares cliff vest at the end of a three year performance period with the ultimate number of shares ranging from 0 to 250% of the award based on achievement against Company performance metrics of the three year period.

Award of Performance Share Units pursuant to the 2018 Omnibus Incentive Plan of the Company. These shares cliff vest at the end of a three year performance period with the ultimate number of shares ranging from 0 to 250% of the award based on achievement against Company performance metrics of the three year period.

Premium Priced Stock Option with exercise price 10% above the closing market price on the date of grant. Option vests 25% per year on each anniversary of the date of the award for four years. This option expires ten years from the date of grant.

Premium Priced Stock Option with exercise price 10% above the closing market price on the date of grant. Option vests 25% per year on each anniversary of the date of the award for four years.

Award of Performance Share Units pursuant to the 2018 Omnibus Incentive Plan of the Company. These shares cliff vest at the end of a three year performance period with the ultimate number of shares ranging from 0 to 250% of the award based on achievement against Company performance metrics of the three year period.

Contingent Purchase of Phantom Stock of the Company pursuant to the Management Stock Purchase Plan component of the 2018 Omnibus Incentive Plan vesting three years after the date of purchase in the form of Common Stock.

Contingent Purchase of Phantom Stock of the Company pursuant to the Management Stock Purchase Plan component of the 2018 Omnibus Incentive Plan vesting three years after the date of purchase in the form of Common Stock.

Grant of Restricted Stock Units pursuant to the 2018 Omnibus Incentive Plan of the Company which vests one-third per year on each anniversary of the date of the award.

Vesting of Phantom Stock pursuant to the Company's 2018 Omnibus Incentive Plan. Actual achievement, which could have ranged from 0% to 250% of the award, was 68%. Phantom Stock Units were granted at 100% achievement, so this transaction reflects the disposition of shares to accurately reflect the vesting.

Vesting of Phantom Stock pursuant to the Company's 2018 Omnibus Incentive Plan. Actual achievement, which could have ranged from 0% to 250% of the award, was 68%. The transaction reported herein is the actual number of shares vesting pursuant thereto.

Vesting of Restricted Stock Units pursuant to the Company's 2018 Omnibus Incentive Plan.

Vesting of Phantom Stock pursuant to the Company's 2018 Omnibus Incentive Plan. Actual achievement, which could have ranged from 0% to 250% of the award, was 68%. The transaction reported herein is the actual number of shares vesting pursuant thereto.

Vesting of Phantom Stock pursuant to the Company's 2018 Omnibus Incentive Plan. Actual achievement, which could have ranged from 0% to 250% of the award, was 68%. The transaction reported here in the actual number of shares vesting pursuant thereto.

Shares sold to pay taxes on vesting of previously issued restricted stock and/or performance share units.

Vesting of Phantom Stock pursuant to the Company's 2018 Omnibus Incentive Plan. Actual achievement, which could have ranged from 0% to 250% of the award, was 68%. Phantom Stock Units were granted at 100% achievement, so this transaction reflects the disposition of shares to accurately reflect the vesting.

Vesting of Restricted Stock Units pursuant to the Company's 2018 Omnibus Incentive Plan.

Shares sold to pay taxes on vesting of previously issued restricted stock and/or performance share units.

Shares sold to pay taxes on vesting of previously issued restricted stock and/or performance share units.

Vesting of Phantom Stock pursuant to the Company's 2018 Omnibus Incentive Plan. Actual achievement, which could have ranged from 0% to 250% of the award, was 68%. Phantom Stock Units were granted at 100% achievement, so this transaction reflects the disposition of shares to accurately reflect the vesting.

Vesting of Phantom Stock pursuant to the Company's 2018 Omnibus Incentive Plan. Actual achievement, which could have ranged from 0% to 250% of the award, was 68%. The transaction reported herein is the actual number of shares vesting pursuant thereto.

Represents acquisition of stock pursuant to the Company's Dividend Reinvestment Plan.

Shares sold to pay taxes on vesting of previously issued restricted stock and/or performance share units.

Vesting of Restricted Stock Units pursuant to the Company's 2018 Omnibus Incentive Plan.

Shares sold to pay taxes on vesting of previously issued restricted stock and/or performance share units.

Shares sold to pay taxes on vesting of previously issued restricted stock and/or performance share units.