PLXS

• The new program begins upon expiration of the current $100.0 million program, which had a remaining balance of $9.6 million as of August 19, 2026.
• The company has no specific schedule or commitment for repurchases and will act based on market conditions, legal requirements, financing, and other considerations.
• The report was filed under Item 8.01 (Other Events) to disclose the new repurchase program, with Item 9.01 covering the exhibit of the cover page interactive data file.

8.01 Other Events · 9.01 Financial Statements and Exhibits

• Fiscal third quarter 2026 revenue was $1.305 billion, a record, up 12% sequentially and 28% year over year.
• GAAP operating margin was 4.7% and GAAP diluted EPS was $1.58; non-GAAP operating margin was 6.3% and non-GAAP diluted EPS was $2.32.
• Fiscal fourth quarter 2026 revenue guidance is $1.330 billion to $1.380 billion, with GAAP diluted EPS of $2.18 to $2.34 and non-GAAP EPS of $2.47 to $2.63.
• Cash cycle improved to 62 days, the best quarterly performance in over five years; ROIC was 14.9%.

2.02 Results of Operations and Financial Condition · 9.01 Financial Statements and Exhibits

• On June 5, 2026, Plexus Corp. entered into a Second Amended and Restated Credit Agreement, replacing the 2022 agreement.
• The agreement matures on June 5, 2031, and includes interest rate options based on alternate base rate, Term SOFR, EURIBOR, or Daily Simple SONIA.
• Financial covenants require an interest coverage ratio of at least 3.00 to 1.00 and a leverage ratio of no more than 3.50 to 1.00, with a temporary increase to 4.25 to 1.00 for material acquisitions.
• JPMorgan Chase Bank, N.A. serves as Administrative Agent under the new agreement.

1.01 Entry into a Material Definitive Agreement · 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement · 9.01 Financial Statements and Exhibits

• Patrick J. Jermain, EVP and CFO, will retire effective July 31, 2026, and will serve in an advisory role from May 11 to July 31, 2026.
• Jermain's retirement agreement includes continued vesting of unvested RSUs and PSUs, pro-rata VICP compensation, and 18 months of subsidized health benefits.
• Abuhl's base salary as CFO will be $550,000 with a target VICP award of 80% of base salary.
• Plexus reported record Q2 FY2026 revenue of $1.164 billion and non-GAAP EPS of $2.05.

2.02 Results of Operations and Financial Condition · 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements · 9.01 Financial Statements and Exhibits

• Plexus Corp. held its 2026 Annual Meeting of Shareholders on February 18, 2026.
• The advisory say-on-pay proposal passed with 21,498,630 votes for, 2,207,349 against, and 963,489 abstentions.
• Shareholders ratified PricewaterhouseCoopers LLP as independent auditors for fiscal 2026 with 24,258,094 votes for.
• Broker non-votes were 1,032,978 for each director election and the say-on-pay proposal, and 0 for auditor ratification.

5.07 Submission of Matters to a Vote of Security Holders · 9.01 Financial Statements and Exhibits

• GAAP operating margin was 5.1% and GAAP diluted EPS was $1.51; non-GAAP operating margin was 5.8% and non-GAAP diluted EPS was $1.78.
• The company won 22 manufacturing programs representing $283 million in annualized revenue, including a record $220 million from Aerospace/Defense.
• Q2 FY2026 guidance: revenue of $1.110 to $1.150 billion, GAAP diluted EPS of $1.53 to $1.68, and non-GAAP EPS of $1.80 to $1.95.
• Free cash flow was negative $50.6 million for the quarter; the company reconfirms fiscal 2026 free cash flow expectation of approximately $100 million.

2.02 Results of Operations and Financial Condition · 9.01 Financial Statements and Exhibits

• Fiscal year 2025 revenue was $4.033 billion, with GAAP operating margin of 5.0% and GAAP diluted EPS of $6.26.
• Non-GAAP Q4 diluted EPS was $2.14, excluding $0.27 of stock-based compensation expense; non-GAAP fiscal 2025 EPS was $7.43, excluding $1.02 of stock-based compensation and $0.15 of restructuring charges.
• The company initiated fiscal Q1 2026 revenue guidance of $1.050 billion to $1.090 billion, with GAAP diluted EPS of $1.40 to $1.55 and non-GAAP EPS of $1.66 to $1.81.
• Fiscal Q4 2025 manufacturing wins totaled 28 programs representing $274 million in annualized revenue; free cash flow was $97 million for the quarter and $154 million for the fiscal year.

2.02 Results of Operations and Financial Condition · 9.01 Financial Statements and Exhibits

• Fiscal third quarter 2025 revenue was $1.018 billion, with GAAP operating margin of 5.3% and GAAP diluted EPS of $1.64.
• The company initiated fiscal fourth quarter 2025 revenue guidance of $1.025 billion to $1.065 billion, with GAAP diluted EPS of $1.57 to $1.72.
• Plexus won 41 manufacturing programs during the quarter, representing $250 million in annualized revenue when fully ramped.
• Free cash flow for the quarter was $13.2 million, and the company repurchased $18.4 million of shares at an average price of $128.70 per share.

2.02 Results of Operations and Financial Condition · 9.01 Financial Statements and Exhibits