Company: SNPS
Filing Date: 2025-02-14
Form Type: DEF 14A
Source: 0000883241-25-000008
Chunk: 188

Company: SYNOPSYS INC
Filing Date: 2025-02-14
Form: DEF 14A
Chunk 188
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 such as Synopsys' current tax structure, existing tax positions and expected recurring tax incentives. Based on these considerations, Synopsys has elected to adopt a non-GAAP tax rate of 16% for fiscal year 2025.

#### 2025 Proxy Statement137
| Appendix C |

<div align='center'>GAAP TO NON-GAAP RECONCILIATION OF OPERATING MARGIN (1)(2)

(UNAUDITED)</div>

|                                               |     | Twelve Months Ended 
 October 31, 2024    |      |   |
|:----------------------------------------------|:----|:--------------------|-----:|:--|
| GAAP operating margin                         |     |                     | 22.1 | % |
| Amortization of acquired intangible assets(3) |     |                     |  2.0 | % |
| Stock-based compensation(3)                   |     |                     | 10.7 | % |
| Acquisition/divestiture related items(4)      |     |                     |  2.3 | % |
| Non-qualified deferred compensation plan      |     |                     |  1.4 | % |
| Non-GAAP operating margin                     |     |                     | 38.5 | % |

(1) Synopsys' fiscal year 2024 ended on November 2, 2024. For presentation purposes, we refer to the closest calendar month end. Fiscal year 2024 was a 53-week year, which included an extra week in the first quarter.

(2) Presented on a continuing operations basis.

(3) The adjustment includes non-GAAP expenses attributable to non-controlling interest and redeemable non-controlling interest.

(4) The adjustment excludes the amortization of bridge financing costs entered into in connection with the pending acquisition of Ansys, that was recorded in interest and other income (expense), net, in our unaudited condensed consolidated statements of income.

#### GAAP TO NON-GAAP RECONCILIATION OF EPS GROWTH

#### (1)
<div align='center'>(UNAUDITED)</div>

|                                                                                                        |     | Twelve Months Ended 
 October 31, 2024    |     |   |       |     | Twelve Months Ended 
 October 31, 2023    |     |   |       |      |
|:-------------------------------------------------------------------------------------------------------|:----|:--------------------|:----|:--|------:|:----|:--------------------|:----|:--