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Quest Diagnostics EVP Doherty sells 22,105 shares

Seven sale tranches were reported under a Rule 10b5-1 sales plan adopted by the executive vice president.

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Form Type
4

Rhea-AI Filing Summary

Quest Diagnostics Inc. Executive Vice President Catherine T. Doherty exercised options for 22,105 shares at $121.8050 per share on November 3, 2026; the reported option balance afterward was 0. She received 4,827 restricted stock units and sold 22,105 shares that day under a Rule 10b5-1 sales plan she adopted. The seven weighted-average sale prices were 3,818 at $245.4519, 5,990 at $246.2649, 1,151 at $246.9835, 2,358 at $248.3838, 3,004 at $249.4035, 2,877 at $250.4882, and 2,907 at $251.2386 per share. A separate indirect holding entry reports 4,552 shares through the Company's 401(k) and/or Supplemental Deferred Compensation Plan; the count is based on the company stock-fund account balance, which includes some money market instruments.

Insider Doherty Catherine T.
Role Executive Vice President
Sold 22,105 shs ($5.48M)
Approx. gross sale proceeds $5.48M
Approx. exercise cost $2.69M
Approx. pre-tax spread $2.79M
Type Security Shares Price Value
Exercise Non-Qualifed Stock Option (right to buy) F2, F11 22,105 $121.805 $2.69M
Grant/Award Common Stock F1 4,827 $0.00 $0.00
Exercise Common Stock F2 22,105 $121.805 $2.69M
Sale Common Stock F2, F3 3,818 $245.4519 $937K
Sale Common Stock F2, F4 5,990 $246.2649 $1.48M
Sale Common Stock F2, F5 1,151 $246.9835 $284K
Sale Common Stock F2, F6 2,358 $248.3838 $586K
Sale Common Stock F2, F7 3,004 $249.4035 $749K
Sale Common Stock F2, F8 2,877 $250.4882 $721K
Sale Common Stock F2, F9 2,907 $251.2386 $730K
Holding Common Stock F10 -- -- --
Holdings After Transaction: Non-Qualifed Stock Option (right to buy) — 0 contracts (Direct); Common Stock — 71,949 shares (Direct); Common Stock — 4,552 shares (Indirect, 401(k)/SDCP)
Footnotes (11)
  1. F1. Represents an award of restricted stock units.
  2. F2. This exercise and sale reported were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person.
  3. F3. This transaction was executed in multiple trades at prices ranging from $244.840 to $245.8353. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
  4. F4. This transaction was executed in multiple trades at prices ranging from $245.845 to $246.810. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
  5. F5. This transaction was executed in multiple trades at prices ranging from $246.850 to $247.240. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
  6. F6. This transaction was executed in multiple trades at prices ranging from $247.930 to $248.7825. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
  7. F7. This transaction was executed in multiple trades at prices ranging from $249.005 to $250.0008. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
  8. F8. This transaction was executed in multiple trades at prices ranging from $250.005 to $251.0036. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
  9. F9. This transaction was executed in multiple trades at prices ranging from $251.005 to $251.700. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
  10. F10. These underlying shares were acquired on a periodic basis by the trustee of the Company's tax qualified Profit Sharing (401(k)) and/or Supplemental Deferred Compensation Plan. The information was obtained from the plan administrator as of a current date. The number of shares is based on the account balance of the Company stock fund under each Plan (which includes some money market instruments) divided by the market price of the Company's stock as of that date.
  11. F11. The options vested in three annual installments beginning with the first on February 17, 2022, the second on February 17, 2023 and the final on February 17, 2024.
Options exercised 22,105 shares November 3, 2026
Exercise price $121.8050 per share Options exercised November 3, 2026
Shares sold 22,105 shares Seven sale tranches on November 3, 2026
Restricted stock unit award 4,827 shares Awarded November 3, 2026
Options following exercise 0 options Reported following the November 3, 2026 transaction
Indirect plan shares 4,552 shares 401(k) and/or Supplemental Deferred Compensation Plan; based on the company stock-fund account balance, which includes some money market instruments
Weighted-average sale prices $245.4519, $246.2649, $246.9835, $248.3838, $249.4035, $250.4882, and $251.2386 per share Prices for the seven sale tranches on November 3, 2026
Rule 10b5-1 sales plan financial
"pursuant to a Rule 10b5-1 sales plan adopted by the reporting person"
restricted stock units financial
"Represents an award of restricted stock units."
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.
weighted average sale price financial
"reflects the weighted average sale price"
Supplemental Deferred Compensation Plan financial
"Supplemental Deferred Compensation Plan"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many DGX shares did Catherine T. Doherty sell, and at what prices?

Catherine T. Doherty reported sales totaling 22,105 shares on November 3, 2026, in seven tranches: 3,818 at a weighted-average $245.4519; 5,990 at $246.2649; 1,151 at $246.9835; 2,358 at $248.3838; 3,004 at $249.4035; 2,877 at $250.4882; and 2,907 at $251.2386 per share. The sales were under a Rule 10b5-1 plan she adopted.

How many DGX options did Catherine T. Doherty exercise, and at what price?

She exercised options covering 22,105 shares at $121.8050 per share on November 3, 2026. The reported option balance following the transaction was 0.

What was Catherine T. Doherty's DGX option vesting schedule?

The options vested in three annual installments: the first on February 17, 2022, the second on February 17, 2023, and the final installment on February 17, 2024.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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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).
X
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*
Doherty Catherine T.

(Last)(First)(Middle)
500 PLAZA DRIVE

(Street)
SECAUCUS NEW JERSEY 07094

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
QUEST DIAGNOSTICS INC [ DGX ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Executive Vice President
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
11/03/2026
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 Stock(1)11/03/2026A4,827A$071,949D
Common Stock11/03/2026M(2)22,105A$121.80594,054D
Common Stock11/03/2026S(2)3,818D$245.4519(3)90,236D
Common Stock11/03/2026S(2)5,990D$246.2649(4)84,246D
Common Stock11/03/2026S(2)1,151D$246.9835(5)83,095D
Common Stock11/03/2026S(2)2,358D$248.3838(6)80,737D
Common Stock11/03/2026S(2)3,004D$249.4035(7)77,733D
Common Stock11/03/2026S(2)2,877D$250.4882(8)74,856D
Common Stock11/03/2026S(2)2,907D$251.2386(9)71,949D
Common Stock4,552(10)I401(k)/SDCP
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
Non-Qualifed Stock Option (right to buy)$121.80511/03/2026M(2)22,105 (11)02/17/2031Common Stock22,105$121.8050D
Explanation of Responses:
1. Represents an award of restricted stock units.
2. This exercise and sale reported were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person.
3. This transaction was executed in multiple trades at prices ranging from $244.840 to $245.8353. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
4. This transaction was executed in multiple trades at prices ranging from $245.845 to $246.810. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
5. This transaction was executed in multiple trades at prices ranging from $246.850 to $247.240. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
6. This transaction was executed in multiple trades at prices ranging from $247.930 to $248.7825. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
7. This transaction was executed in multiple trades at prices ranging from $249.005 to $250.0008. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
8. This transaction was executed in multiple trades at prices ranging from $250.005 to $251.0036. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
9. This transaction was executed in multiple trades at prices ranging from $251.005 to $251.700. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
10. These underlying shares were acquired on a periodic basis by the trustee of the Company's tax qualified Profit Sharing (401(k)) and/or Supplemental Deferred Compensation Plan. The information was obtained from the plan administrator as of a current date. The number of shares is based on the account balance of the Company stock fund under each Plan (which includes some money market instruments) divided by the market price of the Company's stock as of that date.
11. The options vested in three annual installments beginning with the first on February 17, 2022, the second on February 17, 2023 and the final on February 17, 2024.
Remarks:
Sean D. Mersten, Attorney in Fact for Catherine T. Doherty11/05/2026
** 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)

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