QUEST DIAGNOSTICS INC

Ticker: DGX CUSIP: 74834L100 Class: COMMON STOCK

DEERFIELD MANAGEMENT COMPANY, L.P.'s Holding History (CIK: 0001009258)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 18,392 Value ($000) $3,192 Avg Close $182.07 Range $173.39 - $197.55

Q1 2024

Shares 2,157 Value ($000) $287 Avg Close $125.21 Range $118.84 - $138.00

Q1 2014

Shares 440,303 Value ($000) $25,502 Avg Close $42.22 Range $39.75 - $47.66

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	18,392	$3,192	$182.07	$173.39 - $197.55
Q1 2024	2,157	$287	$125.21	$118.84 - $138.00
Q1 2014	440,303	$25,502	$42.22	$39.75 - $47.66