UPDATE 1-Italy's Angelini Pharma to buy Catalyst Pharmaceuticals for $4.1 billion

Catalyst Pharmaceuticals, Inc.

Catalyst Pharmaceuticals, Inc.

CPRX

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- Italy's Angelini Pharma said on Thursday it has agreed to acquire Catalyst Pharmaceuticals CPRX.O for $4.1 billion.

The Italian drugmaker will pay $31.5 in cash for each share of Catalyst, which specialises in rare disease therapies.

The offer represents a 3% premium to Catalyst's last closing price, according to data compiled by LSEG.