ATYR PHARMA INC

Ticker: ATYR CUSIP: 002120202 Class: Common Stock

VIKING GLOBAL INVESTORS LP's Holding History (CIK: 0001103804)

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

Q3 2020

Shares 587,444 Value ($000) $1,897 Avg Close $4.11 Range $3.23 - $5.48

Q2 2020

Shares 587,444 Value ($000) $2,608 Avg Close $3.63 Range $2.40 - $4.75

Q1 2020

Shares 587,444 Value ($000) $1,645 Avg Close $4.32 Range $2.13 - $7.62

Q4 2019

Shares 229,283 Value ($000) $956 Avg Close $3.86 Range $3.03 - $4.98

Q3 2019

Shares 229,283 Value ($000) $802 Avg Close $3.68 Range $2.76 - $5.97

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2020	587,444	$1,897	$4.11	$3.23 - $5.48
Q2 2020	587,444	$2,608	$3.63	$2.40 - $4.75
Q1 2020	587,444	$1,645	$4.32	$2.13 - $7.62
Q4 2019	229,283	$956	$3.86	$3.03 - $4.98
Q3 2019	229,283	$802	$3.68	$2.76 - $5.97