Angelo Michael Ninivaggi Jr. - 09 Feb 2026 Form 4 Insider Report for PLEXUS CORP (PLXS)

Role: Exec VP, CAO, Gen Coun & Secy
Signature: /s/ Angelo M. Ninivaggi, by Kate A. Gitter, Attorney-in-Fact
Issuer symbol: PLXS
Transactions as of: 09 Feb 2026
Net transactions value: $0
Form type: 4
Filing time: 11 Feb 2026, 17:27:38 UTC
Previous filing: 06 Feb 2026
Next filing: 19 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Ninivaggi Angelo Michael Jr	Exec VP, CAO, Gen Coun & Secy	ONE PLEXUS WAY, NEENAH	/s/ Angelo M. Ninivaggi, by Kate A. Gitter, Attorney-in-Fact	11 Feb 2026	0001374160

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	PLXS	Common Stock, $.01 par value						20,099	09 Feb 2026	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	PLXS	Restricted Stock Units	Award		+2,300			2,300	09 Feb 2026	Common Stock, $.01 par value	2,300		Direct	F1
transaction	PLXS	Performance Stock Units	Award		+3,240			3,240	09 Feb 2026	Common Stock, $.01 par value	3,240		Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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.
F2	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 940 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.

Content

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.

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 940 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.