Plexus (PLXS) COO Oliver Mihm vests 7,280 RSUs and disposes 3,455 shares

Rhea-AI Filing Summary

Plexus Corp. executive Oliver K. Mihm, Exec VP & COO, reported equity award activity and a share disposition. On January 30, 2026, 7,280 Restricted Stock Units granted under the Plexus Corp. 2016 Omnibus Incentive Plan vested and settled into an equal number of common shares.

On the same date, 3,455 shares of Plexus common stock were disposed of at $199.33 per share, leaving Mihm with 22,267 shares held directly. In addition, 981 shares of Plexus common stock were held indirectly through the Plexus Corp. 401(k) Retirement Plan as of the plan trustee’s last report.

Insider Trade Summary

7,280 shares exercised/converted

Mixed 4 txns

Insider Mihm Oliver K.

Role Exec VP & COO

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	7,280	$0.00	--
Exercise	Common Stock, $.01 par value	7,280	$0.00	--
Tax Withholding	Common Stock, $.01 par value	3,455	$199.33	$689K
holding	Common Stock, $.01 par value	--	--	--

Holdings After Transaction: Restricted Stock Units — 0 shares (Direct); Common Stock, $.01 par value — 25,722 shares (Direct); Common Stock, $.01 par value — 981 shares (Indirect, 401(k))

Footnotes (1)

1. 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. Each Restricted Stock Unit granted under the Plexus Corp. 2016 Omnibus Incentive Plan, which qualifies under Rule 16b-3, represented a contingent right to receive one share of Plexus Corp. common stock. The Restricted Stock Units vested and settled on January 30, 2026.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Mihm Oliver K.

(Last) (First) (Middle)

ONE PLEXUS WAY

(Street)

NEENAH WI 54956

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
PLEXUS CORP [ PLXS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Exec VP & COO

3. Date of Earliest Transaction (Month/Day/Year)
01/30/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock, $.01 par value								981	I	401(k)(1)
Common Stock, $.01 par value	01/30/2026		M		7,280	A	(2)	25,722	D
Common Stock, $.01 par value	01/30/2026		F		3,455	D	$199.33	22,267	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	(2)	01/30/2026		M			7,280	(2)	(2)	Common Stock, $.01 par value	7,280	(2)	0	D

Explanation of Responses:

1. 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.

2. Each Restricted Stock Unit granted under the Plexus Corp. 2016 Omnibus Incentive Plan, which qualifies under Rule 16b-3, represented a contingent right to receive one share of Plexus Corp. common stock. The Restricted Stock Units vested and settled on January 30, 2026.

Remarks:

	/s/ Oliver K. Mihm, by Kate A. Gitter, Attorney-in-Fact	02/03/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Plexus (PLXS) report for Oliver K. Mihm?

Plexus (PLXS) reported that Exec VP & COO Oliver K. Mihm had 7,280 Restricted Stock Units vest and settle into common shares on January 30, 2026. On the same date, 3,455 common shares were disposed of at $199.33 per share, leaving 22,267 shares held directly.

How many Plexus (PLXS) RSUs vested for Oliver K. Mihm?

Oliver K. Mihm had 7,280 Restricted Stock Units in Plexus (PLXS) vest and settle on January 30, 2026. Each unit represented the right to receive one common share under the Plexus Corp. 2016 Omnibus Incentive Plan, which qualifies under Rule 16b-3.

At what price were Plexus (PLXS) shares disposed of in Mihm’s Form 4?

In the Form 4 for Plexus (PLXS), 3,455 shares of common stock associated with Oliver K. Mihm were disposed of at $199.33 per share on January 30, 2026. Following this disposition, Mihm directly held 22,267 Plexus common shares, according to the filing data.

How many Plexus (PLXS) shares does Oliver K. Mihm hold after the reported transactions?

After the January 30, 2026 transactions, Oliver K. Mihm directly held 22,267 shares of Plexus (PLXS) common stock. Additionally, 981 Plexus common shares were held indirectly in the Plexus Corp. 401(k) Retirement Plan, based on the most recent report from the plan’s trustee.

What is the role of Oliver K. Mihm at Plexus (PLXS) in this Form 4?

In this Form 4, Oliver K. Mihm is identified as an officer of Plexus (PLXS), serving as Executive Vice President and Chief Operating Officer. The filing reports his beneficial ownership changes in Plexus common stock and related Restricted Stock Units as of January 30, 2026.

How are 401(k) shares of Plexus (PLXS) reported for Oliver K. Mihm?

The Form 4 shows 981 shares of Plexus (PLXS) common stock held indirectly for Oliver K. Mihm in the Plexus Corp. 401(k) Retirement Plan. This amount reflects holdings as of the last report from the plan’s trustee and is classified as indirect beneficial ownership.