Blaser Brian J. 4

What Happened
Brian J. Blaser, President and CEO of QuidelOrtho (QDEL), had 20,759 restricted stock units (RSUs) vest and convert into common shares on May 15, 2026. The company withheld 10,252 of those shares to satisfy tax withholding obligations at $10.32 per share (withheld value reported as $105,801), leaving a net issuance of 10,507 shares to Blaser. The filing records the RSU release (award/acquisition) and the tax-withholding disposition.

Key Details

• Transaction date: May 15, 2026; Form 4 filed May 19, 2026 (filed within the 2-business-day window).
• Codes reported: A = Award/Grant (20,759 shares acquired), M = Exercise/Conversion of derivative (20,759 shares converted), F = Tax withholding/disposition (10,252 shares withheld at $10.32; $105,801).
• Net shares issued to insider: 20,759 vested − 10,252 withheld = 10,507 shares delivered.
• Footnotes: release of RSUs previously reported on Form 3; RSUs convert 1:1 to common shares; vesting schedule noted (20,759 vested May 15, 2025 and May 15, 2026; remaining 20,759 to vest May 15, 2027).
• Filing timeliness: appears timely (filed May 19 for a May 15 transaction).

Context
This was not an open-market sale or purchase but a routine vesting and conversion of previously granted RSUs, with a portion of shares withheld to cover taxes (a common “sell-to-cover” or withholding practice). Such withholding-driven dispositions are administrative and do not necessarily indicate the insider’s market view.