Jonathan P. Siegrist - 29 Jan 2026 Form 4 Insider Report for QuidelOrtho Corp (QDEL)

Role
EVP of R&D & CTO
Signature
/s/ Jennifer Ahn, attorney-in-fact for Jonathan P. Siegrist
Issuer symbol
QDEL
Transactions as of
29 Jan 2026
Net transactions value
-$27,657
Form type
4
Filing time
02 Feb 2026, 19:07:40 UTC
Previous filing
17 Oct 2025
Next filing
03 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/ Jennifer Ahn, attorney-in-fact for Jonathan P. Siegrist 02 Feb 2026 0002040321

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction QDEL Common Stock Award $0 +2,448 +20% $0.000000 14,428 29 Jan 2026 Direct F1
transaction QDEL Common Stock Tax liability $27,657 -1,009 -7% $27.41 13,419 29 Jan 2026 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 -2,448 -33% $0.000000 4,898 29 Jan 2026 Common Stock 2,448 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 4.
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 2,448 shares vested on January 29, 2026; the remaining 4,898 shares will vest in equal installments on January 29, 2027 and January 29, 2028.