Key facts
- This page summarizes Mark E. Delaney's Form 4 filing for QUEST DIAGNOSTICS INC (DGX).
- 5 reported transactions and 1 derivative row are listed below.
- Accepted by SEC: 20 Feb 2026, 17:10.
Mark E. Delaney - 18 Feb 2026 Form 4 Insider Report for QUEST DIAGNOSTICS INC (DGX)
- Reporting relationship
- SVP & Chief Commercial Officer
- Issuer ticker
- DGX
- Reported as of
- 18 Feb 2026
- Net transaction value
- -$87,907
- SEC form
- 4
- Accepted by SEC
- 20 Feb 2026, 17:10:00 UTC
- Prior SEC filing
- 20 Nov 2025
- Next SEC filing
- 04 Mar 2026
- Source filing
- View source filing
- Reporting owner signature
- Sean D. Mersten, Attorney in Fact for Mark E. Delaney
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Mark E. Delaney filed Form 4 for QUEST DIAGNOSTICS INC (DGX) on 20 Feb 2026.
Change
- Previous filing in this sequence was filed on 20 Nov 2025.
- Current net transaction value: -$87,907.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001955265
Primary reporting owner
DELANEY MARK E
- Relationship
- SVP & Chief Commercial Officer
- Address
- 500 PLAZA DRIVE, C/O QUEST DIAGNOSTICS INC, SECAUCUS
- Signature
- Sean D. Mersten, Attorney in Fact for Mark E. Delaney
- Signature date
- 20 Feb 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
DGX
transaction
Common Stock
Award
- Transaction value
- $0
- Shares
- +1,586
- Change %
- +21%
- Price
- $0.000000
- Shares after
- 9,116
- Date
- 18 Feb 2026
- Ownership
- Direct
- Footnotes
- F1
DGX
transaction
Common Stock
Tax liability
- Transaction value
- $43,052
- Shares
- -205
- Change %
- -2.2%
- Price
- $210.01
- Shares after
- 8,911
- Date
- 18 Feb 2026
- Ownership
- Direct
- Footnotes
- F2
DGX
transaction
Common Stock
Tax liability
- Transaction value
- $47,608
- Shares
- -230
- Change %
- -2.6%
- Price
- $206.99
- Shares after
- 8,681
- Date
- 18 Feb 2026
- Ownership
- Direct
- Footnotes
- F2
DGX
transaction
Common Stock
Small acquisition under Rule 16a-6
- Transaction value
- $2,753
- Shares
- +15
- Change %
- +0.17%
- Price
- $183.51
- Shares after
- 8,696
- Date
- 28 Jan 2026
- Ownership
- Direct
- Footnotes
- F3
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
DGX
transaction
Derivative
Non-Qualifed Stock Option (right to buy)
Award
- Transaction value
- $0
- Shares
- +7,332
- Change %
- Price
- $0.000000
- Shares after
- 7,332
- Date
- 18 Feb 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 7,332
- Exercise price
- $204.96
- Footnotes
- F4
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 4 footnotes
Footnote F1
Represents an award of restricted stock units.
Footnote F2
Disposition of common stock to the issuer solely to cover tax withholding obligations arising from the vesting of restricted stock units.
Footnote F3
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.
Footnote F4
The options vest in three equal annual installments beginning on the first annual anniversary of the grant date.