Viking Global Investors’s aTyr Pharma ATYR Stock Holding History

Viking Global Investors’s Portfolio ATYR Stock Details ATYR Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2020 Q4	–	Sell	-587,444	Closed	-$1.9M	–	109
2020 Q3	$1.9M	Hold	587,444	–	–	0.01%	86
2020 Q2	$2.61M	Hold	587,444	–	–	0.01%	71
2020 Q1	$1.65M	Buy	587,444 +358,161	+156%	+$1.55M	0.01%	64
2019 Q4	$956K	Hold	229,283	–	–	﹤0.01%	66
2019 Q3	$802K	Hold	229,283	–	–	﹤0.01%	62
2019 Q2	$1.18M	Hold	229,283	–	–	0.01%	59
2019 Q1	$1.77M	Buy	229,283 +130,404	+132%	+$929K	0.01%	57
2018 Q4	$686K	Hold	98,879	–	–	﹤0.01%	57
2018 Q3	$1.13M	Hold	98,879	–	–	0.01%	63
2018 Q2	$1.26M	Hold	98,879	–	–	0.01%	60
2018 Q1	$3.67M	Hold	98,879	–	–	0.02%	59
2017 Q4	$4.84M	Sell	98,879 -28,106	-22%	-$1.73M	0.03%	58
2017 Q3	$8.98M	Buy	+126,985	New	+$5.88M	0.06%	59

Other funds holding ATYR

Federated Hermes Pittsburgh, Pennsylvania $61.5B AUM 30.7% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Alyeska Investment Group Chicago, Illinois $35.4B AUM 33.54% 1-Year Est. Return

Ikarian Capital Dallas, Texas $1.23B AUM 600.17% 1-Year Est. Return

ACM

Altium Capital Management New York $42M AUM

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

PVMCV

Polaris Venture Management Co V Boston, Massachusetts $14.1M AUM 121.41% 1-Year Est. Return

Two Sigma Advisers New York $51.4B AUM 31.07% 1-Year Est. Return

Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return

Viking Global Investors's ATYR Position: Q4 2020 in Review

Viking Global Investors sold out of aTyr Pharma (ATYR) in Q4 2020, closing a stake of 587,444 shares — an estimated $1.9M sold.

Viking Global Investors first reported a position in ATYR in Q3 2017 and held it in 13 quarters. The position peaked at $8.98M in Q3 2017. 23 funds tracked by Wall St. Rank hold ATYR as of Q4 2020.

Viking Global Investors reported no remaining aTyr Pharma position as of Q4 2020 after selling out during the quarter.
Viking Global Investors sold 587,444 aTyr Pharma shares in Q4 2020, an estimated $1.9M.
Viking Global Investors first reported a position in aTyr Pharma in Q3 2017 and held it in 13 quarters.
Viking Global Investors's aTyr Pharma position peaked at $8.98M in Q3 2017.
23 funds tracked by Wall St. Rank held aTyr Pharma as of Q4 2020.

Based on Viking Global Investors's 13F filing for Q4 2020, filed 16 Feb 2021.