Changes in Beneficial Ownership · 4

Logitech International S.A.

LOGINASDAQEQUITYCurrent

Changes in Beneficial Ownership

Filed Sep 10, 2026Accepted Sep 10, 2026, 4:41 PM EDTFiling CIK 1032975Accession 0001379111-26-000001

form4-09102026_080930.xml

Name: Allan Donald
Reporting owner CIK: 0001379111
Relationship: Director
Address: C/O LOGITECH INTERNATIONAL S.A., ROUTE DE PAMPIGNY 20, HAUTEMORGES, SWITZERLAND, V8, 1143

Non-derivative transactions · 2 reported rows
Security	Transaction date	Code	Amount	A / D	Price (USD)	Owned after	Ownership
Registered Shares	2026-09-08	A · Form 4	2,518^[F1]	A	0	6,752	D
Registered Shares	2026-09-08	A · Form 4	1,022^[F2]	A	98.10^[F3]	7,774	D

Table key

F1: Each restricted stock unit (RSU) represents the right to receive, following vesting, one Logitech share. The RSUs vest in full on the earlier of (i) the one-year anniversary of the grant date or (ii) the date of the next year's annual general meeting to the extent that the director is not re-elected at such meeting and is still providing service to the Issuer up to such meeting.↩ 1
F2: Shares issued to the Reporting Person under the Logitech International S.A. 2006 Stock Incentive Plan in lieu of cash compensation for Board fees, at the election of the Reporting Person.↩ 1
F3: The reported amount represents the closing price on the SIX Swiss Exchange of CHF 79.44, as converted into U.S. dollars at the exchange rate of 1 CHF to U.S. $1.23487, as in effect on September 8, 2026.↩ 1