REGENERON PHARMACEUTICALS

Ticker: REGN CUSIP: 75886F107 Class: COM

MARKEL GROUP INC.'s Holding History (CIK: 0001096343)

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

Q4 2022

Shares 30,500 Value ($000) $22,005 Avg Close $733.79 Range $690.81 - $774.70

Q3 2022

Shares 80,300 Value ($000) $55,317 Avg Close $625.92 Range $560.71 - $750.51

Q2 2022

Shares 80,300 Value ($000) $47,467 Avg Close $646.43 Range $535.04 - $743.30

Q1 2022

Shares 80,300 Value ($000) $56,083 Avg Close $629.16 Range $589.59 - $706.29

Q4 2021

Shares 79,300 Value ($000) $50,080 Avg Close $611.44 Range $536.21 - $670.14

Q3 2021

Shares 74,300 Value ($000) $44,965 Avg Close $617.39 Range $551.89 - $682.83

Q2 2021

Shares 66,800 Value ($000) $37,310 Avg Close $503.83 Range $466.78 - $566.85

Q1 2021

Shares 45,500 Value ($000) $21,528 Avg Close $484.19 Range $438.57 - $555.83

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2022	30,500	$22,005	$733.79	$690.81 - $774.70
Q3 2022	80,300	$55,317	$625.92	$560.71 - $750.51
Q2 2022	80,300	$47,467	$646.43	$535.04 - $743.30
Q1 2022	80,300	$56,083	$629.16	$589.59 - $706.29
Q4 2021	79,300	$50,080	$611.44	$536.21 - $670.14
Q3 2021	74,300	$44,965	$617.39	$551.89 - $682.83
Q2 2021	66,800	$37,310	$503.83	$466.78 - $566.85
Q1 2021	45,500	$21,528	$484.19	$438.57 - $555.83