| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Busky Joseph M. | Chief Financial Officer | 9975 SUMMERS RIDGE ROAD, SAN DIEGO | /s/ Phillip S. Askim, attorney-in-fact for Joseph M. Busky | 02 Feb 2026 | 0001385091 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | QDEL | Common Stock | Award | $0 | +8,425 | +27% | $0.000000 | 39,852 | 29 Jan 2026 | Direct | F1 |
| transaction | QDEL | Common Stock | Tax liability | $71,321 | -2,602 | -6.5% | $27.41 | 37,250 | 29 Jan 2026 | Direct | F2 |
| holding | QDEL | Common Stock | 6,920 | 29 Jan 2026 | By Trust |
| 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 | -8,425 | -33% | $0.000000 | 16,851 | 29 Jan 2026 | Common Stock | 8,425 | Direct | F3, F4 |
| 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 | 8,425 shares vested on January 29, 2026; 8,425 shares will vest on January 29, 2027; and the remaining 8,426 shares will vest on January 29, 2028. |