Trade Tracker: Karen Firestone buys Amgen and buys more HealthEquity

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Karen Firestone, executive chairman at Aureus Asset Management, joins CNBC's "Halftime Report" to detail her latest stock purchases. The Investment Committee debate healthcare and biotech companies.

Karen Firestone, executive chairman at Aureus Asset Management, joins CNBC's "Halftime Report" to detail her latest stock purchases. The Investment Committee debate healthcare and biotech companies..