Oliver K. Mihm - 17 Feb 2026 Form 4 Insider Report for PLEXUS CORP (PLXS)

Role: Exec VP & COO
Signature: /s/ Oliver K. Mihm, by Kate A. Gitter, Attorney-in-Fact
Issuer symbol: PLXS
Transactions as of: 17 Feb 2026
Net transactions value: -$2,765,358
Form type: 4
Filing time: 19 Feb 2026, 17:24:25 UTC
Previous filing: 11 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Mihm Oliver K.	Exec VP & COO	ONE PLEXUS WAY, NEENAH	/s/ Oliver K. Mihm, by Kate A. Gitter, Attorney-in-Fact	19 Feb 2026	0001600424

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	PLXS	Common Stock, $.01 par value	Options Exercise		+4,357	+20%		26,624	17 Feb 2026	Direct	F2
transaction	PLXS	Common Stock, $.01 par value	Tax liability	$401,306	-2,048	-7.7%	$195.95	24,576	17 Feb 2026	Direct
transaction	PLXS	Common Stock, $.01 par value	Sale	$442,495	-2,226	-9.1%	$198.78	22,350	17 Feb 2026	Direct
transaction	PLXS	Common Stock, $.01 par value	Sale	$1,921,557	-9,541	-43%	$201.40	12,809	18 Feb 2026	Direct	F3
holding	PLXS	Common Stock, $.01 par value						981	17 Feb 2026	401(k)	F1

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		+1,297	+42%		4,357	17 Feb 2026	Common Stock, $.01 par value	1,297		Direct	F2
transaction	PLXS	Performance Stock Units	Options Exercise		-4,357	-100%		0	17 Feb 2026	Common Stock, $.01 par value	4,357		Direct	F2

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

Explanation of Responses:

Id	Content
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.