ULTRAGENYX PHARMACEUTICAL IN

Ticker: RARE CUSIP: 90400D108 Class: EQTY

MACKAY SHIELDS LLC's Holding History (CIK: 0000061227)

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

Q1 2021

Shares 20,735 Value ($000) $2,361 Avg Close $136.14 Range $102.90 - $175.00

Q4 2020

Shares 33,571 Value ($000) $4,648 Avg Close $118.63 Range $82.43 - $179.65

Q3 2020

Shares 38,071 Value ($000) $3,129 Avg Close $82.89 Range $72.83 - $91.77

Q2 2020

Shares 43,171 Value ($000) $3,377 Avg Close $66.19 Range $42.32 - $79.67

Q1 2020

Shares 39,971 Value ($000) $1,775 Avg Close $51.92 Range $31.99 - $64.24

Q4 2019

Shares 46,371 Value ($000) $1,981 Avg Close $41.26 Range $35.41 - $46.06

Q3 2019

Shares 46,971 Value ($000) $2,009 Avg Close $54.32 Range $41.35 - $65.00

Q2 2019

Shares 47,771 Value ($000) $3,033 Avg Close $63.65 Range $54.41 - $74.50

Q1 2019

Shares 16,935 Value ($000) $1,174 Avg Close $57.14 Range $39.78 - $71.63

Q4 2018

Shares 15,635 Value ($000) $679 Avg Close $54.65 Range $37.44 - $78.51

Q3 2018

Shares 17,298 Value ($000) $1,321 Avg Close $81.34 Range $69.73 - $90.98

Q2 2018

Shares 15,398 Value ($000) $1,183 Avg Close $64.59 Range $48.04 - $86.10

Q1 2018

Shares 15,698 Value ($000) $800 Avg Close $50.36 Range $41.67 - $60.90

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	20,735	$2,361	$136.14	$102.90 - $175.00
Q4 2020	33,571	$4,648	$118.63	$82.43 - $179.65
Q3 2020	38,071	$3,129	$82.89	$72.83 - $91.77
Q2 2020	43,171	$3,377	$66.19	$42.32 - $79.67
Q1 2020	39,971	$1,775	$51.92	$31.99 - $64.24
Q4 2019	46,371	$1,981	$41.26	$35.41 - $46.06
Q3 2019	46,971	$2,009	$54.32	$41.35 - $65.00
Q2 2019	47,771	$3,033	$63.65	$54.41 - $74.50
Q1 2019	16,935	$1,174	$57.14	$39.78 - $71.63
Q4 2018	15,635	$679	$54.65	$37.44 - $78.51
Q3 2018	17,298	$1,321	$81.34	$69.73 - $90.98
Q2 2018	15,398	$1,183	$64.59	$48.04 - $86.10
Q1 2018	15,698	$800	$50.36	$41.67 - $60.90