OSI Systems Inc.

OSIS·NASDAQ·$220.97Share Price as of 11/2·$4BMarket Cap as of 11/2

Financials

10-QQ1 ended 09/30/2610/29/26 10-KFY 202608/21/26 10-QQ3 ended 03/31/2605/04/26 10-QQ2 ended 12/31/2501/29/26 10-QQ1 ended 09/30/2510/30/25

Disclosures

8-KCurrent report10/29/26 8-KCurrent report08/20/26 8-KCurrent report05/04/26 8-KCurrent report01/29/26 8-KCurrent report12/11/25

Prospectuses and Registrations

S-8Registration of securities for employees01/26/24 S-8Registration of securities for employees01/29/21 S-8Registration of securities for employees02/09/18 S-8Registration of securities for employees09/09/16

Proxies

DEF 14ADefinitive proxy10/26/26 DEFA14AAdditional proxy materials10/26/26 DEF 14ADefinitive proxy10/22/25 DEFA14AAdditional proxy materials10/22/25 DEF 14ADefinitive proxy10/25/24

Ownership

Form 4Insider transaction08/26/26 Form 4Insider transaction08/26/26 Form 4Insider transaction08/26/26 Form 4Insider transaction08/26/26 Form 4Insider transaction08/25/26

Other

ARSAnnual report to shareholders10/26/26 SDConflict Minerals disclosure03/23/26 ARSAnnual report to shareholders10/22/25 SDConflict Minerals disclosure05/16/25 ARSAnnual report to shareholders10/25/24