MERCK & CO INC

Ticker: MRK CUSIP: 58933Y105 Class: COM

Atom Investors LP's Holding History (CIK: 0001738902)

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

Q4 2025

Shares 2,147 Value ($000) $226 Avg Close $93.24 Range $81.31 - $107.59

Q3 2025

Shares 15,818 Value ($000) $1,328 Avg Close $81.01 Range $75.27 - $86.24

Q2 2024

Shares 7,820 Value ($000) $968 Avg Close $121.72 Range $114.80 - $127.87

Q1 2024

Shares 13,789 Value ($000) $1,819 Avg Close $115.77 Range $102.41 - $125.66

Q3 2021

Shares 2,926 Value ($000) $220 Avg Close $66.14 Range $62.09 - $68.78

Q3 2020

Shares 7,294 Value ($000) $605 Avg Close $65.93 Range $60.98 - $70.41

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,147	$226	$93.24	$81.31 - $107.59
Q3 2025	15,818	$1,328	$81.01	$75.27 - $86.24
Q2 2024	7,820	$968	$121.72	$114.80 - $127.87
Q1 2024	13,789	$1,819	$115.77	$102.41 - $125.66
Q3 2021	2,926	$220	$66.14	$62.09 - $68.78
Q3 2020	7,294	$605	$65.93	$60.98 - $70.41