Michael J. Running - 17 Feb 2026 Form 4 Insider Report for PLEXUS CORP (PLXS)

Role: Regional President - AMER
Signature: /s/ Michael J. Running, by Kate A. Gitter, Attorney-in-Fact
Issuer symbol: PLXS
Transactions as of: 17 Feb 2026
Net transactions value: -$101,110
Form type: 4
Filing time: 19 Feb 2026, 17:24:36 UTC
Previous filing: 11 Feb 2026
Next filing: 27 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Running Michael J.	Regional President - AMER	ONE PLEXUS WAY, NEENAH	/s/ Michael J. Running, by Kate A. Gitter, Attorney-in-Fact	19 Feb 2026	0002002072

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	PLXS	Common Stock, $.01 par value	Options Exercise		+1,096	+85%		2,391	17 Feb 2026	Direct	F1
transaction	PLXS	Common Stock, $.01 par value	Tax liability	$101,110	-516	-22%	$195.95	1,875	17 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	Performance Stock Units	Award		+326	+42%		1,096	17 Feb 2026	Common Stock, $.01 par value	326		Direct	F1
transaction	PLXS	Performance Stock Units	Options Exercise		-1,096	-100%		0	17 Feb 2026	Common Stock, $.01 par value	1,096		Direct	F1

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

Explanation of Responses:

Id	Content
F1	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.

Content

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.