REGENERON PHARMACEUTICALS

Ticker: REGN CUSIP: 75886F107 Class: COM

Avidity Partners Management LP's Holding History (CIK: 0001791827)

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

Q1 2025

Shares 25,400 Value ($000) $16,109 Avg Close $684.44 Range $615.89 - $745.12

Q4 2024

Shares 8,400 Value ($000) $5,984 Avg Close $834.60 Range $689.18 - $1055.74

Q2 2024

Shares 48,000 Value ($000) $50,449 Avg Close $964.05 Range $870.40 - $1075.21

Q1 2024

Shares 68,000 Value ($000) $65,449 Avg Close $945.64 Range $866.58 - $992.82

Q4 2023

Shares 68,000 Value ($000) $59,724 Avg Close $818.96 Range $764.95 - $894.90

Q3 2023

Shares 58,000 Value ($000) $47,732 Avg Close $781.58 Range $684.72 - $842.83

Q2 2023

Shares 24,800 Value ($000) $17,820 Avg Close $766.75 Range $681.03 - $832.93

Q1 2023

Shares 119,100 Value ($000) $97,861 Avg Close $750.05 Range $664.32 - $830.39

Q3 2021

Shares 152,300 Value ($000) $92,169 Avg Close $617.39 Range $551.89 - $682.83

Q2 2020

Shares 132,100 Value ($000) $82,384 Avg Close $564.49 Range $473.82 - $642.77

Q1 2020

Shares 50,000 Value ($000) $24,415 Avg Close $410.21 Range $326.32 - $515.14

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2025	25,400	$16,109	$684.44	$615.89 - $745.12
Q4 2024	8,400	$5,984	$834.60	$689.18 - $1055.74
Q2 2024	48,000	$50,449	$964.05	$870.40 - $1075.21
Q1 2024	68,000	$65,449	$945.64	$866.58 - $992.82
Q4 2023	68,000	$59,724	$818.96	$764.95 - $894.90
Q3 2023	58,000	$47,732	$781.58	$684.72 - $842.83
Q2 2023	24,800	$17,820	$766.75	$681.03 - $832.93
Q1 2023	119,100	$97,861	$750.05	$664.32 - $830.39
Q3 2021	152,300	$92,169	$617.39	$551.89 - $682.83
Q2 2020	132,100	$82,384	$564.49	$473.82 - $642.77
Q1 2020	50,000	$24,415	$410.21	$326.32 - $515.14