REGENERON PHARMACEUTICALS

Ticker: REGN CUSIP: 75886F107 Class: COM

D.B. Root & Company, LLC's Holding History (CIK: 0001731717)

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

Q1 2019

Shares 825 Value ($000) $339 Avg Close $409.51 Range $363.99 - $439.56

Q4 2018

Shares 885 Value ($000) $331 Avg Close $364.00 Range $325.77 - $407.74

Q3 2018

Shares 1,310 Value ($000) $529 Avg Close $378.49 Range $340.69 - $414.19

Q2 2018

Shares 2,210 Value ($000) $762 Avg Close $311.03 Range $280.34 - $347.31

Q1 2018

Shares 2,090 Value ($000) $720 Avg Close $345.90 Range $311.80 - $394.59

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2019	825	$339	$409.51	$363.99 - $439.56
Q4 2018	885	$331	$364.00	$325.77 - $407.74
Q3 2018	1,310	$529	$378.49	$340.69 - $414.19
Q2 2018	2,210	$762	$311.03	$280.34 - $347.31
Q1 2018	2,090	$720	$345.90	$311.80 - $394.59