OSI Systems (OSIS) Director Gerald Chizever Tenders 166 Shares

What Happened
Gerald M. Chizever, a director of OSI Systems, tendered 166 shares on July 28, 2026 to satisfy tax withholding related to an option exercise. The reported per-share amount was $217.30, for a notional value of $36,072. This was a tax-withholding/net-settlement transaction (F code), not an open-market sale.

Key Details

• Transaction date: 2026-07-28; Form 4 filed 2026-07-29 (appears timely).
• Price reported: $217.30 per share; total value shown: $36,072.
• Shares disposed: 166 (tendered to cover tax withholding via net settlement). No open-market sale occurred (footnote F1).
• Shares owned after transaction: Not disclosed in this filing.
• Footnotes: F1 = net settlement; shares tendered to pay tax withholding, no shares sold. F2 = some holdings consist of shares held by The G&C Chizever Family Trust (Gerald and Caroline Chizever, trustees).

Context
This was a tax-withholding (net settlement) action tied to an option exercise rather than a sale for cash. Such tendering to cover taxes is common and does not necessarily indicate a change in the insider’s view of the company. The filing indicates some shares are held indirectly through a family trust.