Lyft threatens litigation against Morgan Stanley

Lyft reportedly threatened to sue Morgan Stanley over allegedly supporting short sellers.

In a letter sent April 2 to Morgan Stanley - reviewed by CNBC - Lyft alleged the company had a role in helping market certain product that would help pre-initial public offering investors bet against the company's stock.

A Morgan Stanley spokespersaon said the firm "did not market or execute, directly or indirectly, a sale, short sale, hedge, swap or transfer of risk or value associated with Lyft stock for any Lyft shareholder identified by the company or otherwise known to us to be the subject of a Lyft lock-up agreement."

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