Karthik Kuppusamy

CIK: 0001955217

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)7 (21.9%)

Position reduction

Option Exercises (M)4 (12.5%)

Derivative conversions

Awards (A)5 (15.6%)

Compensation grants

Other (G, F, J, C, D, …)16 (50.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

DGX

QUEST DIAGNOSTICS INC

Officer

Discretionary Trading P&L

Holdings

Transaction History (32 total)

DGX
QUEST DIAGNOSTICS INC
Oct 21, 2026
Small Acquisition(L)
Direct
33 shares at avg. $235.94$8K
DGX
QUEST DIAGNOSTICS INC
Jul 22, 2026
Small Acquisition(L)
Direct
37 shares at avg. $206.81$8K
DGX
QUEST DIAGNOSTICS INC
Jun 4, 2026
Exercise(M)
Direct
4.8K shares at avg. $121.81$588K
DGX
QUEST DIAGNOSTICS INC
Jun 4, 2026
Exercise(M)
Direct
3.3K shares at avg. $127.72$424K
DGX
QUEST DIAGNOSTICS INC
Jun 4, 2026
Sale(S)
Direct
8.1K shares at avg. $200.00$1.6M
DGX
QUEST DIAGNOSTICS INC
Apr 20, 2026
Small Acquisition(L)
Direct
39 shares at avg. $194.70$8K
DGX
QUEST DIAGNOSTICS INC
Mar 4, 2026
Award(A)
Direct
6.2K shares at avg. $204.86$1.3M
DGX
QUEST DIAGNOSTICS INC
Mar 4, 2026
Sale(S)
Direct
2.6K shares at avg. $204.86$538K
DGX
QUEST DIAGNOSTICS INC
Mar 2, 2026
Tax Payment(F)
Direct
205 shares at avg. $204.86$42K
DGX
QUEST DIAGNOSTICS INC
Feb 18, 2026
Award(A)
Direct
2.1K shares-
DGX
QUEST DIAGNOSTICS INC
Feb 18, 2026
Tax Payment(F)
Direct
252 shares at avg. $210.01$53K
DGX
QUEST DIAGNOSTICS INC
Feb 18, 2026
Tax Payment(F)
Direct
259 shares at avg. $206.99$54K
DGX
QUEST DIAGNOSTICS INC
Jan 28, 2026
Small Acquisition(L)
Direct
16 shares at avg. $183.52$3K
DGX
QUEST DIAGNOSTICS INC
Oct 21, 2025
Award(A)
Direct
15 shares at avg. $189.08$3K
DGX
QUEST DIAGNOSTICS INC
Aug 13, 2025
Tax Payment(F)
Direct
123 shares at avg. $175.91$22K
DGX
QUEST DIAGNOSTICS INC
Jul 31, 2025
Sale(S)
Direct
2.2K shares at avg. $170.00$376K
DGX
QUEST DIAGNOSTICS INC
Jul 30, 2025
Sale(S)
Direct
3K shares at avg. $167.40$510K
DGX
QUEST DIAGNOSTICS INC
Jul 30, 2025
Exercise(M)
Direct
3K shares at avg. $86.63$264K
DGX
QUEST DIAGNOSTICS INC
Jul 30, 2025
Sale(S)
Direct
5.2K shares at avg. $167.40$874K
DGX
QUEST DIAGNOSTICS INC
Jul 30, 2025
Exercise(M)
Direct
5.2K shares at avg. $112.17$586K
DGX
QUEST DIAGNOSTICS INC
Jul 21, 2025
Small Acquisition(L)
Direct
27 shares at avg. $167.50$5K
DGX
QUEST DIAGNOSTICS INC
Apr 21, 2025
Small Acquisition(L)
Direct
27 shares at avg. $164.42$4K
DGX
QUEST DIAGNOSTICS INC
Apr 2, 2025
Sale(S)
Direct
2.6K shares at avg. $170.00$434K
DGX
QUEST DIAGNOSTICS INC
Mar 4, 2025
Tax Payment(F)
Direct
1.9K shares at avg. $173.74$326K
DGX
QUEST DIAGNOSTICS INC
Mar 4, 2025
Award(A)
Direct
4.4K shares at avg. $173.74$770K

		Type	Shares	Price		Ownership
Oct 21, 2026	DGX QUEST DIAGNOSTICS INC	Small Acquisition(L)	33	$235.94	$7,786	Direct
Jul 22, 2026	DGX QUEST DIAGNOSTICS INC	Small Acquisition(L)	37	$206.81	$7,652	Direct
Jun 4, 2026	DGX QUEST DIAGNOSTICS INC	Exercise(M)	4,827	$121.81	$587,953	Direct
Jun 4, 2026	DGX QUEST DIAGNOSTICS INC	Exercise(M)	3,320	$127.72	$424,047	Direct
Jun 4, 2026	DGX QUEST DIAGNOSTICS INC	Sale(S)	8,147	$200.00	$1,629,400	Direct
Apr 20, 2026	DGX QUEST DIAGNOSTICS INC	Small Acquisition(L)	39	$194.70	$7,593	Direct
Mar 4, 2026	DGX QUEST DIAGNOSTICS INC	Award(A)	6,200	$204.86	$1,270,132	Direct
Mar 4, 2026	DGX QUEST DIAGNOSTICS INC	Sale(S)	2,628	$204.86	$538,372	Direct
Mar 2, 2026	DGX QUEST DIAGNOSTICS INC	Tax Payment(F)	205	$204.86	$41,996	Direct
Feb 18, 2026	DGX QUEST DIAGNOSTICS INC	Award(A)	2,135	-	$0	Direct
Feb 18, 2026	DGX QUEST DIAGNOSTICS INC	Tax Payment(F)	252	$210.01	$52,923	Direct
Feb 18, 2026	DGX QUEST DIAGNOSTICS INC	Tax Payment(F)	259	$206.99	$53,610	Direct
Jan 28, 2026	DGX QUEST DIAGNOSTICS INC	Small Acquisition(L)	16	$183.52	$2,936	Direct
Oct 21, 2025	DGX QUEST DIAGNOSTICS INC	Award(A)	15	$189.08	$2,836	Direct
Aug 13, 2025	DGX QUEST DIAGNOSTICS INC	Tax Payment(F)	123	$175.91	$21,637	Direct
Jul 31, 2025	DGX QUEST DIAGNOSTICS INC	Sale(S)	2,210	$170.00	$375,700	Direct
Jul 30, 2025	DGX QUEST DIAGNOSTICS INC	Sale(S)	3,045	$167.40	$509,733	Direct
Jul 30, 2025	DGX QUEST DIAGNOSTICS INC	Exercise(M)	3,045	$86.63	$263,788	Direct
Jul 30, 2025	DGX QUEST DIAGNOSTICS INC	Sale(S)	5,224	$167.40	$874,498	Direct
Jul 30, 2025	DGX QUEST DIAGNOSTICS INC	Exercise(M)	5,224	$112.17	$585,976	Direct
Jul 21, 2025	DGX QUEST DIAGNOSTICS INC	Small Acquisition(L)	27	$167.50	$4,522	Direct
Apr 21, 2025	DGX QUEST DIAGNOSTICS INC	Small Acquisition(L)	27	$164.42	$4,439	Direct
Apr 2, 2025	DGX QUEST DIAGNOSTICS INC	Sale(S)	2,555	$170.00	$434,350	Direct
Mar 4, 2025	DGX QUEST DIAGNOSTICS INC	Tax Payment(F)	1,879	$173.74	$326,457	Direct
Mar 4, 2025	DGX QUEST DIAGNOSTICS INC	Award(A)	4,434	$173.74	$770,363	Direct

1-25 of 32 transactions

About KUPPUSAMY KARTHIK

KUPPUSAMY KARTHIK (SEC CIK 0001955217) files insider reports with the SEC as SVP, Clinical Solutions of QUEST DIAGNOSTICS INC (DGX).

Signal8 holds 20 ownership filings by KUPPUSAMY KARTHIK, all Form 4s, filed between Oct 25, 2024 and Oct 23, 2026. Those filings report 32 transactions, from Oct 21, 2024 to Oct 21, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on KUPPUSAMY KARTHIK's filings is in SECAUCUS, NJ.

Recent filings by KUPPUSAMY KARTHIK

Oct 21, 2026: Small acquisition transaction of DGX shares (Form 4, code L).
Jul 22, 2026: Small acquisition transaction of DGX shares (Form 4, code L).
Jun 4, 2026: Option exercises of DGX shares (2 lines, Form 4, code M).
Jun 4, 2026: Open-market sale of DGX shares (Form 4, code S).
Apr 20, 2026: Small acquisition transaction of DGX shares (Form 4, code L).

Other insiders filing for QUEST DIAGNOSTICS INC (DGX)

PFEIFFER GARY M, Director
CARTER ROBERT B, Director
SAMAD SAM, Executive Vice President & CFO
Gregg Vicky B, Director
Lassiter Wright III, Director
Plewman Patrick, SVP for Diagnostic Services

How to read Form 4 transaction codes