DGX

SEC source: 0001022079-26-000090 · wk-form4_1790973218.xml · derivative · entry 1

WENTWORTH TIMOTHY C · CIK 0001252016 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 477

Underlying: Common Stock · 135 shares

Expires not disclosed

F1 · derivative.exercise_date: Phantom stock units resulting from elective deferrals of a director's cash compensation pursuant to the Quest Diagnostics Incorporated Amended and Restated Deferred Compensation Plan for Directors and become payable in cash upon the reporting person's termination of service as a director.

F1 · derivative.expiration_date: Phantom stock units resulting from elective deferrals of a director's cash compensation pursuant to the Quest Diagnostics Incorporated Amended and Restated Deferred Compensation Plan for Directors and become payable in cash upon the reporting person's termination of service as a director.

SEC source: 0001599837-26-000007 · wk-form4_1788469527.xml · nonDerivative · entry 1

Davis J. E. · CIK 0001599837 · Director · CEO and President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 122,423

F1 · kind: This exercise and sale reported were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person.

SEC source: 0001022079-26-000089 · wk-form4_1788208632.xml · derivative · entry 7

PREVOZNIK MICHAEL E · CIK 0001222679 · SVP & General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 22,677 shares

Expires 2030-02-18

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This exercise and sale reported were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person.

F7 · derivative.exercise_date: The options vested in three equal annual installments beginning on the first annual anniversary of the grant date.

SEC source: 0001022079-26-000089 · wk-form4_1788208632.xml · nonDerivative · entry 5

PREVOZNIK MICHAEL E · CIK 0001222679 · SVP & General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 36,557

F5 · kind: On August 28, 2026, the reporting person made a charitable gift of 1,000 shares, a transaction eligible for deferred reporting on Form 5. The reporting person has chosen to report such transaction early on this Form 4.

SEC source: 0001022079-26-000089 · wk-form4_1788208632.xml · nonDerivative · entry 4

PREVOZNIK MICHAEL E · CIK 0001222679 · SVP & General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 37,557

F1 · kind: This exercise and sale reported were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person.

F4 · price: This transaction was executed in multiple trades at prices ranging from $244.280 to $245.247. 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.

SEC source: 0001022079-26-000089 · wk-form4_1788208632.xml · nonDerivative · entry 3

PREVOZNIK MICHAEL E · CIK 0001222679 · SVP & General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 37,987

F1 · kind: This exercise and sale reported were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person.

F3 · price: This transaction was executed in multiple trades at prices ranging from $243.270 to $244.225. 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.

SEC source: 0001022079-26-000089 · wk-form4_1788208632.xml · nonDerivative · entry 2

PREVOZNIK MICHAEL E · CIK 0001222679 · SVP & General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 44,224

F1 · kind: This exercise and sale reported were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person.

F2 · price: This transaction was executed in multiple trades at prices ranging from $242.270 to $243.269. 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.

SEC source: 0001022079-26-000089 · wk-form4_1788208632.xml · nonDerivative · entry 1

PREVOZNIK MICHAEL E · CIK 0001222679 · SVP & General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 60,234

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This exercise and sale reported were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person.

SEC source: 0001022079-26-000087 · wk-form4_1785359086.xml · nonDerivative · entry 1

DELANEY MARK E · CIK 0001955265 · SVP & Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 10,335

F1 · kind: This sale reported was effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person.

SEC source: 0001022079-26-000080 · wk-form4_1785184383.xml · nonDerivative · entry 1

Lassiter Wright III · CIK 0001805909 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,323

F1 · shares: Reflects shares that were acquired pursuant to a dividend reinvestment plan administered by the reporting person's broker and eligible for deferred reporting on Form 5 under Rule 16a-6. The reporting person has chosen to report such transaction early on this Form 4.

SEC source: 0001022079-26-000086 · wk-form4_1785184536.xml · nonDerivative · entry 1

KUPPUSAMY KARTHIK · CIK 0001955217 · SVP, Clinical Solutions

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,557

F1 · shares: Reflects shares that were acquired pursuant to a dividend reinvestment plan administered by the reporting person's broker and eligible for deferred reporting on Form 5 under Rule 16a-6. The reporting person has chosen to report such transaction early on this Form 4.

F2 · balance_after: The amount includes exempt purchases made under the Company's stock purchase plan since the date of the last filing on Form 4.

SEC source: 0001022079-26-000085 · wk-form4_1785184514.xml · nonDerivative · entry 1

CARTER ROBERT B · CIK 0001197607 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,864

F1 · shares: Reflects shares that were acquired pursuant to a dividend reinvestment plan administered by the reporting person's broker and eligible for deferred reporting on Form 5 under Rule 16a-6. The reporting person has chosen to report such transaction early on this Form 4.

SEC source: 0001022079-26-000084 · wk-form4_1785184496.xml · nonDerivative · entry 1

Gregg Vicky B · CIK 0001510304 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,386

F1 · shares: Reflects shares that were acquired pursuant to a dividend reinvestment plan administered by the reporting person's broker and eligible for deferred reporting on Form 5 under Rule 16a-6. The reporting person has chosen to report such transaction early on this Form 4.

SEC source: 0001022079-26-000083 · wk-form4_1785184455.xml · nonDerivative · entry 1

Plewman Patrick · CIK 0001497368 · SVP for Diagnostic Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,293

F1 · shares: Reflects shares that were acquired pursuant to a dividend reinvestment plan administered by the reporting person's broker and eligible for deferred reporting on Form 5 under Rule 16a-6. The reporting person has chosen to report such transaction early on this Form 4.

SEC source: 0001022079-26-000082 · wk-form4_1785184436.xml · nonDerivative · entry 1

MAIN TIMOTHY L · CIK 0001196744 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,460

F1 · shares: Reflects shares that were acquired pursuant to a dividend reinvestment plan administered by the reporting person's broker and eligible for deferred reporting on Form 5 under Rule 16a-6. The reporting person has chosen to report such transaction early on this Form 4.

SEC source: 0001022079-26-000081 · wk-form4_1785184405.xml · nonDerivative · entry 1

SAMAD SAM · CIK 0001694295 · Executive Vice President & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,478

F1 · security: Represents an award of restricted share units.

F2 · shares: Reflects shares that were acquired pursuant to a dividend reinvestment plan administered by the reporting person's broker and eligible for deferred reporting on Form 5 under Rule 16a-6. The reporting person has chosen to report such transaction early on this Form 4.

SEC source: 0001022079-26-000079 · wk-form4_1785184364.xml · nonDerivative · entry 1

DELANEY MARK E · CIK 0001955265 · SVP & Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,935

F1 · security: Represents an award of restricted share units.

F2 · shares: Reflects shares that were acquired pursuant to a dividend reinvestment plan administered by the reporting person's broker and eligible for deferred reporting on Form 5 under Rule 16a-6. The reporting person has chosen to report such transaction early on this Form 4.

SEC source: 0001022079-26-000060 · wk-form4_1783024458.xml · derivative · entry 1

WENTWORTH TIMOTHY C · CIK 0001252016 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 342

Underlying: Common Stock · 144 shares

Expires not disclosed

F1 · derivative.exercise_date: Phantom stock units resulting from elective deferrals of a director's cash compensation pursuant to the Quest Diagnostics Incorporated Amended and Restated Deferred Compensation Plan for Directors and become payable in cash upon the reporting person's termination of service as a director.

F1 · derivative.expiration_date: Phantom stock units resulting from elective deferrals of a director's cash compensation pursuant to the Quest Diagnostics Incorporated Amended and Restated Deferred Compensation Plan for Directors and become payable in cash upon the reporting person's termination of service as a director.

SEC source: 0001022079-26-000053 · wk-form4_1780950744.xml · derivative · entry 7

KUPPUSAMY KARTHIK · CIK 0001955217 · SVP, Clinical Solutions

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,827 shares

Expires 2031-02-17

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This exercise and sale reported were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person.

F5 · derivative.exercise_date: 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.

SEC source: 0001022079-26-000053 · wk-form4_1780950744.xml · derivative · entry 6

KUPPUSAMY KARTHIK · CIK 0001955217 · SVP, Clinical Solutions

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,320 shares

Expires 2032-02-24

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This exercise and sale reported were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person.

F4 · derivative.exercise_date: The options vested in three annual installments beginning with the first on February 24, 2023, the second on February 24, 2024 and the final on February 24, 2025.

SEC source: 0001022079-26-000053 · wk-form4_1780950744.xml · nonDerivative · entry 3

KUPPUSAMY KARTHIK · CIK 0001955217 · SVP, Clinical Solutions

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 13,510

F1 · kind: This exercise and sale reported were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person.

F2 · balance_after: The amount includes exempt purchases made under the Company's stock purchase plan since the date of the last filing on Form 4.

SEC source: 0001022079-26-000053 · wk-form4_1780950744.xml · nonDerivative · entry 2

KUPPUSAMY KARTHIK · CIK 0001955217 · SVP, Clinical Solutions

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 21,657

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This exercise and sale reported were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person.

SEC source: 0001022079-26-000053 · wk-form4_1780950744.xml · nonDerivative · entry 1

KUPPUSAMY KARTHIK · CIK 0001955217 · SVP, Clinical Solutions

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 16,830

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: This exercise and sale reported were effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person.

SEC source: 0001599837-26-000005 · wk-form4_1780439916.xml · nonDerivative · entry 1

Davis J. E. · CIK 0001599837 · Director · CEO and President

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 132,423

F1 · kind: The sale reported was effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person.

SEC source: 0001805909-26-000007 · wk-form4_1779396839.xml · nonDerivative · entry 1

Lassiter Wright III · CIK 0001805909 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,317

F1 · security: Represents an award of restricted stock units.

F2 · balance_after: The amount includes shares acquired via dividend reinvestment since the date of reporting person's last filing on Form 4 pursuant to the Amended and Restated Deferred Compensation Plan for Directors.

SEC source: 0001197607-26-000005 · wk-form4_1779397171.xml · nonDerivative · entry 1

CARTER ROBERT B · CIK 0001197607 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,853

F1 · security: Represents an award of restricted stock units.

SEC source: 0001510304-26-000005 · wk-form4_1779397113.xml · nonDerivative · entry 1

Gregg Vicky B · CIK 0001510304 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,314

F1 · security: Represents an award of restricted stock units.

SEC source: 0001720081-26-000002 · wk-form4_1779397051.xml · nonDerivative · entry 1

Diaz Luis · CIK 0001720081 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,196

F1 · security: Represents an award of restricted stock units.

SEC source: 0001196744-26-000002 · wk-form4_1779397018.xml · nonDerivative · entry 1

MAIN TIMOTHY L · CIK 0001196744 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,439

F1 · security: Represents an award of restricted stock units.

SEC source: 0001252016-26-000007 · wk-form4_1779396987.xml · nonDerivative · entry 1

WENTWORTH TIMOTHY C · CIK 0001252016 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,358

F1 · security: Represents an award of restricted stock units.

F2 · balance_after: The amount includes shares acquired via dividend reinvestment since the date of reporting person's last filing on Form 4 pursuant to the Amended and Restated Deferred Compensation Plan for Directors.

SEC source: 0001527766-26-000002 · wk-form4_1779396953.xml · nonDerivative · entry 1

Doi Tracey · CIK 0001527766 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,748

F1 · security: Represents an award of restricted stock units.

F2 · balance_after: The amount includes shares acquired via dividend reinvestment since the date of reporting person's last filing on Form 4 pursuant to the Amended and Restated Deferred Compensation Plan for Directors.

SEC source: 0001204666-26-000002 · wk-form4_1779396890.xml · nonDerivative · entry 1

RING TIMOTHY M · CIK 0001204666 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,140

F1 · security: Represents an award of restricted stock units.

F2 · balance_after: The amount includes shares acquired via dividend reinvestment since the date of reporting person's last filing on Form 4 pursuant to the Amended and Restated Deferred Compensation Plan for Directors.

SEC source: 0001230166-26-000008 · wk-form4_1779396782.xml · nonDerivative · entry 1

MORRISON DENISE M · CIK 0001230166 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,929

F1 · security: Represents an award of restricted stock units.

F2 · balance_after: The amount includes shares acquired via dividend reinvestment since the date of reporting person's last filing on Form 4 pursuant to the Amended and Restated Deferred Compensation Plan for Directors.

SEC source: 0001127304-26-000002 · wk-form4_1779396728.xml · nonDerivative · entry 1

PFEIFFER GARY M · CIK 0001127304 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,005

F1 · security: Represents an award of restricted stock units.

F2 · balance_after: The amount includes shares acquired via dividend reinvestment since the date of reporting person's last filing on Form 4 pursuant to the Amended and Restated Deferred Compensation Plan for Directors.

SEC source: 0001022079-26-000046 · wk-form4_1777069413.xml · nonDerivative · entry 1

Lassiter Wright III · CIK 0001805909 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,063

F1 · security: Represents an award of restricted share units.

F2 · shares: Reflects shares that were acquired pursuant to a dividend reinvestment plan administered by the reporting person's broker and eligible for deferred reporting on Form 5 under Rule 16a-6. The reporting person has chosen to report such transaction early on this Form 4.

SEC source: 0001022079-26-000050 · wk-form4_1777069487.xml · nonDerivative · entry 1

SAMAD SAM · CIK 0001694295 · Executive Vice President & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,376

F1 · security: Represents an award of restricted share units.

F2 · shares: Reflects shares that were acquired pursuant to a dividend reinvestment plan administered by the reporting person's broker and eligible for deferred reporting on Form 5. The reporting person has chosen to report such transaction early on this Form 4.

SEC source: 0001022079-26-000049 · wk-form4_1777069472.xml · nonDerivative · entry 1

Plewman Patrick · CIK 0001497368 · SVP for Diagnostic Services

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,247

F1 · shares: Reflects shares that were acquired pursuant to a dividend reinvestment plan administered by the reporting person's broker and eligible for deferred reporting on Form 5 under Rule 16a-6. The reporting person has chosen to report such transaction early on this Form 4.

SEC source: 0001022079-26-000048 · wk-form4_1777069449.xml · nonDerivative · entry 1

Gregg Vicky B · CIK 0001510304 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,172

F1 · shares: Reflects shares that were acquired pursuant to a dividend reinvestment plan administered by the reporting person's broker and eligible for deferred reporting on Form 5. The reporting person has chosen to report such transaction early on this Form 4.

SEC source: 0001022079-26-000047 · wk-form4_1777069431.xml · nonDerivative · entry 1

CARTER ROBERT B · CIK 0001197607 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,711

F1 · shares: Reflects shares that were acquired pursuant to a dividend reinvestment plan administered by the reporting person's broker and eligible for deferred reporting on Form 5 under Rule 16a-6. The reporting person has chosen to report such transaction early on this Form 4.

SEC source: 0001022079-26-000045 · wk-form4_1777069399.xml · nonDerivative · entry 1

KUPPUSAMY KARTHIK · CIK 0001955217 · SVP, Clinical Solutions

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,490

F1 · shares: Reflects shares that were acquired pursuant to a dividend reinvestment plan administered by the reporting person's broker and eligible for deferred reporting on Form 5 under Rule 16a-6. The reporting person has chosen to report such transaction early on this Form 4.

F2 · balance_after: The amount includes exempt purchases made under the Company's stock purchase plan since the date of the reporting person's last filing on Form 4.

SEC source: 0001022079-26-000044 · wk-form4_1777069381.xml · nonDerivative · entry 1

DELANEY MARK E · CIK 0001955265 · SVP & Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,901

F1 · security: Represents an award of restricted share units.

F2 · shares: Reflects shares that were acquired pursuant to a dividend reinvestment plan administered by the reporting person's broker and eligible for deferred reporting on Form 5 under Rule 16a-6. The reporting person has chosen to report such transaction early on this Form 4.

SEC source: 0001022079-26-000035 · wk-form4_1775164614.xml · derivative · entry 1

WENTWORTH TIMOTHY C · CIK 0001252016 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 198

Underlying: Common Stock · 198 shares

Expires not disclosed

F1 · derivative.exercise_date: Phantom stock units resulting from elective deferrals of a director's cash compensation pursuant to the Quest Diagnostics Incorporated Amended and Restated Deferred Compensation Plan for Directors and become payable in cash upon the reporting person's termination of service as a director.

F1 · derivative.expiration_date: Phantom stock units resulting from elective deferrals of a director's cash compensation pursuant to the Quest Diagnostics Incorporated Amended and Restated Deferred Compensation Plan for Directors and become payable in cash upon the reporting person's termination of service as a director.

SEC source: 0001252016-26-000004 · wk-form4_1773266699.xml · nonDerivative · entry 1

WENTWORTH TIMOTHY C · CIK 0001252016 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 215

F1 · security: Represents an award of restricted stock units.

SEC source: 0001022079-26-000031 · wk-form4_1772833501.xml · nonDerivative · entry 3

Doherty Catherine T. · CIK 0001520897 · EVP, Regional Businesses

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 67,122

F3 · kind: This sale reported was effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person.

SEC source: 0001022079-26-000029 · wk-form4_1772833467.xml · nonDerivative · entry 3

PREVOZNIK MICHAEL E · CIK 0001222679 · SVP & General Counsel

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 37,557

F3 · kind: This sale reported was effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person.

SEC source: 0001022079-26-000027 · wk-form4_1772833437.xml · nonDerivative · entry 3

Plewman Patrick · CIK 0001497368 · SVP for Diagnostic Services

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 15,198

F3 · kind: This sale reported was effected pursuant to a Rule 10b5-1 sales plan adopted by the reporting person.

SEC source: 0001022079-26-000032 · wk-form4_1772833514.xml · nonDerivative · entry 2

SAMAD SAM · CIK 0001694295 · Executive Vice President & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,268

F2 · shares: Disposition of common stock to the issuer solely to cover tax withholding obligations arising from the settlement of said performance share award.

SEC source: 0001022079-26-000032 · wk-form4_1772833514.xml · nonDerivative · entry 1

SAMAD SAM · CIK 0001694295 · Executive Vice President & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,988

F1 · shares: Stock issued by Quest Diagnostics Incorporated in settlement of a performance stock award approved in accordance with the requirements of Rule 16b-3(d).

SEC source: 0001022079-26-000031 · wk-form4_1772833501.xml · nonDerivative · entry 2

Doherty Catherine T. · CIK 0001520897 · EVP, Regional Businesses

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 72,680

F2 · shares: Disposition of common stock to the issuer solely to cover tax withholding obligations arising from the settlement of said performance stock award.

SEC source: 0001022079-26-000031 · wk-form4_1772833501.xml · nonDerivative · entry 1

Doherty Catherine T. · CIK 0001520897 · EVP, Regional Businesses

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 78,486

F1 · shares: Stock issued by Quest Diagnostics Incorporated in settlement of a performance stock award approved in accordance with the requirements of Rule 16b-3(d).