April 15 (Reuters) - Global equity manager ClearBridge

Investments said on Monday it has urged healthcare IT firm Model

N's ( MODN ) board to reconsider its proposed acquisition by

Vista Equity Partners.

"We believe the proposed acquisition materially undervalues

Model N's ( MODN ) outlook as a public company or value to strategic or

financial buyers," ClearBridge said in its letter to Model N ( MODN ).