SNPS · Synopsys Inc · Insider Trading

The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan that was adopted September 19, 2025.

Represents a weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from $455.060 to $471.325. The Reporting Person has provided to the Issuer, and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range.

Represents a weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from $502.57 to $502.64. The Reporting Person has provided to the Issuer, and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range.

Represents a weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from $371.995 to $379.990. The Reporting Person has provided to the Issuer, and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range.

The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan that was adopted September 19, 2025.

Each stock unit converts into one share of Synopsys common stock.

33% of the units vest on the date shown followed by two equal annual installments, subject to continued service through each vesting date.

These shares were retained by the Company in order to meet the tax withholding obligations of the reporting person in connection with the vesting of an installment of the restricted stock unit award. The Compensation Committee approved the disposition of shares by the reporting person and the amount retained by the Company was not in excess of the amount of the tax liability.

Represents a weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from $413.99 to $430.26. The Reporting Person has provided to the Issuer, and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range.

The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan that was adopted October 14, 2025.

These shares were retained by the Company in order to meet the tax withholding obligations of the reporting person in connection with the vesting of an installment of the restricted stock unit award. The Compensation Committee approved the disposition of shares by the reporting person and the amount retained by the Company was not in excess of the amount of the tax liability.

Each stock unit converts into one share of Synopsys common stock.

The award vests on the date shown followed by quarterly installments, subject to continued service through each vesting date.

Acquisition of stock under Synopsys, Inc Employee Stock Purchase Plan

Acquisition of stock under Synopsys, Inc Employee Stock Purchase Plan

Represents a weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from $435.88 to $445.70. The Reporting Person has provided to the Issuer, and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range.

Acquisition of stock under Synopsys, Inc Employee Stock Purchase Plan

The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan that was adopted October 14, 2025.

Acquisition of stock under Synopsys, Inc Employee Stock Purchase Plan

Represents a weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from $440.985 to $461.850. The Reporting Person has provided to the Issuer, and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range.

The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan that was adopted October 14, 2025.

These shares were retained by the Company in order to meet the tax withholding obligations of the reporting person in connection with the vesting of an installment of the restricted stock unit award. The Compensation Committee approved the disposition of shares by the reporting person and the amount retained by the Company was not in excess of the amount of the tax liability.

Each stock unit converts into one share of Synopsys common stock.

The award vests on the date shown followed by quarterly installments, subject to continued service through each vesting date.

Each stock unit converts into one share of Synopsys common stock.

One-sixth (1/6) of the units vest on the date shown followed by five equal semi-annual installments, subject to continued service through each vesting date.

Each stock unit converts into one share of Synopsys common stock.

One-sixth (1/6) of the units vest on the date shown followed by five equal semi-annual installments, subject to continued service through each vesting date.

These shares were retained by the Company in order to meet the tax withholding obligations of the reporting person in connection with the vesting of an installment of the restricted stock unit award. The Compensation Committee approved the disposition of shares by the reporting person and the amount retained by the Company was not in excess of the amount of the tax liability.

Each stock unit converts into one share of Synopsys common stock.

One-sixth (1/6) of the units vest on the date shown followed by five equal semi-annual installments, subject to continued service through each vesting date.

Each stock unit converts into one share of Synopsys common stock.

One-sixth (1/6) of the units vest on the date shown followed by five equal semi-annual installments, subject to continued service through each vesting date.

Each stock unit converts into one share of Synopsys common stock.

One-sixth (1/6) of the units vest on the date shown followed by five equal semi-annual installments, subject to continued service through each vesting date.

These shares were retained by the Company in order to meet the tax withholding obligations of the reporting person in connection with the vesting of an installment of the restricted stock unit award. The Compensation Committee approved the disposition of shares by the reporting person and the amount retained by the Company was not in excess of the amount of the tax liability.

These shares were retained by the Company in order to meet the tax withholding obligations of the reporting person in connection with the vesting of an installment of the restricted stock unit award. The Compensation Committee approved the disposition of shares by the reporting person and the amount retained by the Company was not in excess of the amount of the tax liability.

These shares were retained by the Company in order to meet the tax withholding obligations of the reporting person in connection with the vesting of an installment of the restricted stock unit award. The Compensation Committee approved the disposition of shares by the reporting person and the amount retained by the Company was not in excess of the amount of the tax liability.

Each stock unit converts into one share of Synopsys common stock.

One-sixth (1/6) of the units vest on the date shown followed by five equal semi-annual installments, subject to continued service through each vesting date.