Jonathan P. Siegrist - 15 Oct 2025 Form 4 Insider Report for QuidelOrtho Corp (QDEL)

Role
EVP of R&D & CTO
Signature
/s/ Euna Greene, attorney-in-fact for Jonathan P. Siegrist
Issuer symbol
QDEL
Transactions as of
15 Oct 2025
Net transactions value
-$182,322
Form type
4
Filing time
17 Oct 2025, 16:16:37 UTC
Previous filing
31 Jan 2025
Next filing
02 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Siegrist Jonathan Philip EVP of R&D & CTO 9975 SUMMERS RIDGE ROAD, SAN DIEGO /s/ Euna Greene, attorney-in-fact for Jonathan P. Siegrist 17 Oct 2025 0002040321

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction QDEL Common Stock Award $0 +18,656 $0.000000 18,656 15 Oct 2025 Direct F1
transaction QDEL Common Stock Tax liability $182,322 -6,676 -36% $27.31 11,980 15 Oct 2025 Direct F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction QDEL Restricted Stock Units Options Exercise $0 -18,656 -33% $0.000000 37,314 15 Oct 2025 Common Stock 18,656 Direct F3, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Reflects release of restricted stock units that were previously reported on a Form 3.
F2 Disposition of shares, as set forth above, was in connection with the Issuer's withholding of common shares to satisfy tax withholding obligations related to the issuance of common shares upon release of restricted stock units.
F3 Each restricted stock unit represents the right to receive one share of QuidelOrtho Corporation common stock.
F4 18,656 shares vested on October 15, 2025; the remaining 37,314 shares will vest in equal installments on October 15, 2026 and October 15, 2027.