OPTIMIZERX CORP

Ticker: OPRX CUSIP: 68401U204 Class: Common Stock

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

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

Q1 2021

Shares 5,200 Value ($000) $253 Avg Close $48.25 Range $31.90 - $63.98

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	5,200	$253	$48.25	$31.90 - $63.98