PLEXUS CORP — Director's Dealing 2026

Feb 11, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PLEXUS CORP (PLXS)
CIK: 0000785786
Period of Report: 2026-02-09

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

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-02-09	Restricted Stock Units	$	A	4030	Acquired		Common Stock, $.01 par value (4030)	Direct
2026-02-09	Performance Stock Units	$	A	5670	Acquired		Common Stock, $.01 par value (5670)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, $.01 par value	981	Indirect
Common Stock, $.01 par value	22267	Direct

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: Each Restricted Stock Unit granted under the Plexus Corp. 2024 Omnibus Incentive Plan, which qualifies under Rule 16b-3, represents a contingent right to receive one share of Plexus Corp. common stock. The Restricted Stock Units vest on February 9, 2029.

F3: Each Performance Stock Unit ("PSU") granted under the Plexus Corp. 2024 Omnibus Incentive Plan, which qualifies under Rule 16b-3, represents a contingent right to receive one share of Plexus Corp. common stock if certain conditions are satisfied. Vesting of 1,640 PSUs is dependent on the relative total shareholder return ("TSR") of Plexus Corp.'s common stock as compared to companies in the S&P 400 Index and vesting of the remainder is based on goals related to economic return ("ER") during the three-year performance period. The target number of PSUs that may be earned is reported above. The reporting person may earn up to 150% of the targeted amount that is based on TSR and up to 200% of the targeted amount that is based on ER.