Mihm Oliver K. 4

4 · PLEXUS CORP · Filed Feb 3, 2026

AI-generated summary of this filing

Updated Feb 3, 2026

Plexus (PLXS) EVP/COO Oliver Mihm Exercises RSUs, Withholds Shares

What Happened

Oliver K. Mihm, Executive Vice President & Chief Operating Officer of Plexus Corp., had 7,280 restricted stock units (RSUs) vest and convert to common shares on January 30, 2026. To cover tax withholding, 3,455 of those shares were surrendered at $199.33 per share for a tax withholding value of $688,685. The filing reports the RSU-to-share conversion (derivative exercise/settlement) and the tax-withholding share disposition; there was no open-market sale reported.

Key Details

Transaction date: January 30, 2026; Form 4 filed February 3, 2026 (filed within the SEC’s two-business-day window).
Shares acquired on vesting/settlement: 7,280 common shares (conversion of RSUs).
Shares withheld for taxes: 3,455 shares at $199.33 each, totaling $688,685 (tax withholding, code F).
Footnotes: F2 confirms each RSU represented a contingent right to one share and that the RSUs vested and settled on Jan 30, 2026. F1 refers to Plexus 401(k) plan shares reported by the plan trustee.
Shares owned following the reported transaction: not specified in the provided extract.

Context

This was a routine RSU vesting and cashless-withholding-for-taxes transaction, not an open-market purchase or sale. Withholding of shares to pay taxes is common and should not be read as a directional buy/sell signal about the insider’s view of the stock. The filing reports conversion of a derivative (RSU) into common shares and the related tax withholding.

Form 4

Period: 2026-01-30

Exec VP & COO

Transactions

Exercise/Conversion
Common Stock, $.01 par value
[F2]
2026-01-30+7,280→ 25,722 total
Tax Payment
Common Stock, $.01 par value
2026-01-30$199.33/sh−3,455$688,685→ 22,267 total
Exercise/Conversion
Restricted Stock Units
[F2]
2026-01-30−7,280→ 0 total
→ Common Stock, $.01 par value (7,280 underlying)

Holdings

Footnotes (2)

[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. 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.

Signature

/s/ Oliver K. Mihm, by Kate A. Gitter, Attorney-in-Fact|2026-02-03

1 file