PLEXUS CORP — Director's Dealing 2026

Feb 19, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PLEXUS CORP (PLXS)
CIK: 0000785786
Period of Report: 2026-02-17

Reporting Person: Mihm Oliver K. (Exec VP & COO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-17	Common Stock, $.01 par value	M	4357	—	Acquired	26624	Direct
2026-02-17	Common Stock, $.01 par value	F	2048	$195.95	Disposed	24576	Direct
2026-02-17	Common Stock, $.01 par value	S	2226	$198.785	Disposed	22350	Direct
2026-02-18	Common Stock, $.01 par value	S	9541	$201.40	Disposed	12809	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-02-17	Performance Stock Units	$	A	1297	Acquired		Common Stock, $.01 par value (1297)	Direct
2026-02-17	Performance Stock Units	$	M	4357	Disposed		Common Stock, $.01 par value (4357)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, $.01 par value	981	Indirect

Footnotes

F1: Shares of Plexus Corp. common stock held in the Plexus Corp. 401(k) Retirement Plan as of the last report from the Plan's trustee.

F2: Based on Company performance during the three-year performance period, 142.4% of the portion of the Performance Stock Units ("PSUs") granted in fiscal 2023 related to the relative total shareholder return ("TSR") of the Company's common stock as compared to companies in the S&P 400 Index vested. As previously disclosed, the reporting person had the opportunity to earn up to 150% of the targeted amount of PSUs based on TSR originally reported.

F3: This transaction was executed in multiple trades at prices ranging from $201.40 to $201.41 per share. The reported price reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.