REGENERON PHARMACEUTICALS

Ticker: REGN CUSIP: 75886F107 Class: COM

CenterStar Asset Management, LLC's Holding History (CIK: 0001722053)

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

Q4 2020

Shares 4,294 Value ($000) $2,054 Avg Close $536.82 Range $468.18 - $616.55

Q2 2020

Shares 370 Value ($000) $226 Avg Close $564.49 Range $473.82 - $642.77

Q1 2020

Shares 1,062 Value ($000) $502 Avg Close $410.21 Range $326.32 - $515.14

Q2 2018

Shares 1,344 Value ($000) $459 Avg Close $311.03 Range $280.34 - $347.31

Q1 2018

Shares 1,828 Value ($000) $619 Avg Close $345.90 Range $311.80 - $394.59

Q4 2017

Shares 1,707 Value ($000) $654 Avg Close $402.77 Range $351.19 - $474.37

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2020	4,294	$2,054	$536.82	$468.18 - $616.55
Q2 2020	370	$226	$564.49	$473.82 - $642.77
Q1 2020	1,062	$502	$410.21	$326.32 - $515.14
Q2 2018	1,344	$459	$311.03	$280.34 - $347.31
Q1 2018	1,828	$619	$345.90	$311.80 - $394.59
Q4 2017	1,707	$654	$402.77	$351.19 - $474.37