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But, a couple more investors are still thinking of jumping in with huge investments of their own, reports Re/code's Liz Gannes.
She writes:
"What's still in flux is an additional $100 million to $150 million that mutual fund giants Fidelity and T. Rowe Price - who have already invested in Dropbox - are angling to add to the round, again at the $10 billion pre-money valuation."
If they do invest, this wouldn't change the company's $10 billion valuation, Gannes reports. Then again, that still makes it one of the most valuable venture-funded tech companies in business today.
With a $250 million investment, Dropbox will have raised $507 million total since it was founded, says CrunchBase. Add another $150 million, and it will have raised $657 million. That's an amazingly huge war chest and it will be interesting to see what Dropbox does with it.
The company has not yet commented to Business Insider or other publications on the new venture round.