Updated from 12:14 p.m. EDT

NEW YORK (TheStreet) -- Shares of Pandora Media (P) are climbing 5.26% to $13 as Liberty Media (LMCA) CEO Greg Maffei has "floated" a takeover offer of roughly $15 per share, sources told the Wall Street Journal. 

The bid by Liberty Media, which owns satellite radio giant Sirius XM, would have valued Pandora at more than $3.4 billion.

Pandora reportedly rejected the offer, claiming that it should be valued as it was in the fall when the stock was trading around $20.

The company has gauged interest from potential buyers such as Apple (AAPL) and Amazon.com (AMZN) as well, according to the Journal.

Pandora is an Oakland, CA-based music streaming service. 

Separately, TheStreet Ratings team rates the stock as a "sell" with a ratings score of D.

Pandora's weaknesses include its deteriorating net income, disappointing return on equity, poor profit margins, weak operating cash flow and generally disappointing historical performance in the stock itself.

You can view the full analysis from the report here: P

TheStreet Ratings objectively rated this stock according to its "risk-adjusted" total return prospect over a 12-month investment horizon. Not based on the news in any given day, the rating may differ from Jim Cramer's view or that of this article's author. 

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