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QuidelOrtho (QDEL) COO reports RSU vesting and tax share withholding

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

QuidelOrtho Corp Chief Operations Officer Philip D. McLellan reported routine equity compensation activity. On April 22, 2026, 3,238 restricted stock units vested and were released into an equal number of common shares. The company withheld 1,162 of those shares at a price of $11.90 per share to cover tax obligations, a non‑market disposition. After these transactions, McLellan directly held 22,412 common shares. An additional 3,238 restricted stock units are scheduled to vest on April 22, 2027.

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Insider McLellan Philip D.
Role Chief Operations Officer
Type Security Shares Price Value
Exercise Restricted Stock Units 3,238 $0.00 --
Grant/Award Common Stock 3,238 $0.00 --
Tax Withholding Common Stock 1,162 $11.90 $14K
Holdings After Transaction: Restricted Stock Units — 3,238 shares (Direct, null); Common Stock — 22,412 shares (Direct, null)
Footnotes (1)
  1. Reflects release of restricted stock units that were previously reported on a Form 4. 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. Each restricted stock unit represents the right to receive one share of QuidelOrtho Corporation common stock. 3,238 shares vested on April 22, 2026; the remaining 3,238 shares will vest on April 22, 2027.
Shares withheld for taxes 1,162 shares at $11.90 Common stock withheld to satisfy tax obligations on April 22, 2026
RSUs converted 3,238 restricted stock units Vested and released into common stock on April 22, 2026
Common shares owned 22,412 shares Direct holdings after reported transactions
Future RSU vesting 3,238 restricted stock units Scheduled to vest on April 22, 2027
Tax-withholding shares 1,162 shares Reported as tax withholding disposition in Form 4 summary
Restricted Stock Units financial
"Reflects release of restricted stock units that were previously reported on a Form 4."
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
tax withholding obligations financial
"withholding of common shares to satisfy tax withholding obligations related to the issuance of common shares"
grant, award, or other acquisition financial
"transaction_code_description": "Grant, award, or other acquisition"
Exercise or conversion of derivative security financial
"transaction_code_description": "Exercise or conversion of derivative security"
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
McLellan Philip D.

(Last)(First)(Middle)
9975 SUMMERS RIDGE ROAD

(Street)
SAN DIEGO CALIFORNIA 92121

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
QuidelOrtho Corp [ QDEL ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Operations Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
04/22/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock04/22/2026A3,238(1)A$022,412D
Common Stock04/22/2026F1,162(2)D$11.921,250D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Units(3)04/22/2026M3,238 (4) (4)Common Stock3,238$03,238D
Explanation of Responses:
1. Reflects release of restricted stock units that were previously reported on a Form 4.
2. 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.
3. Each restricted stock unit represents the right to receive one share of QuidelOrtho Corporation common stock.
4. 3,238 shares vested on April 22, 2026; the remaining 3,238 shares will vest on April 22, 2027.
Remarks:
/s/ Jennifer Ahn, attorney-in-fact for Philip D. McLellan04/24/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transactions did QuidelOrtho (QDEL) report for Philip D. McLellan?

QuidelOrtho reported equity compensation activity for COO Philip D. McLellan. On April 22, 2026, 3,238 restricted stock units vested into common shares, with 1,162 shares withheld to cover related tax obligations. These are routine compensation and tax events, not open-market trades.

How many QuidelOrtho (QDEL) shares were withheld for taxes in this Form 4?

The company withheld 1,162 QuidelOrtho common shares at $11.90 per share to satisfy tax withholding obligations. This disposition reflects shares delivered back to the issuer for taxes tied to restricted stock unit release, rather than a sale into the open market.

How many QuidelOrtho (QDEL) restricted stock units vested for the COO?

On April 22, 2026, 3,238 restricted stock units vested for Chief Operations Officer Philip D. McLellan, each converting into one common share. This was previously reported equity, now released as stock, forming part of his ongoing compensation package and ownership position.

What are Philip D. McLellan’s QuidelOrtho (QDEL) holdings after these transactions?

Following the April 22, 2026 transactions, Philip D. McLellan directly owns 22,412 shares of QuidelOrtho common stock. This reflects his position after the restricted stock units vested and tax withholding shares were returned to the issuer as part of standard compensation mechanics.

What future vesting remains from the QuidelOrtho (QDEL) restricted stock units?

After the April 22, 2026 vesting of 3,238 restricted stock units, another 3,238 units remain scheduled to vest on April 22, 2027. Each restricted stock unit represents the right to receive one share of QuidelOrtho common stock upon vesting under the award terms.

Is the QuidelOrtho (QDEL) COO Form 4 a buy or sell signal for investors?

The Form 4 reflects equity award vesting and tax withholding, not open-market buying or selling. Shares were acquired through restricted stock unit release and some were withheld to pay taxes, a common administrative process that does not reflect discretionary trading decisions.