Peter Kafka

Recent Posts by Peter Kafka

Tumblr Counts Its Money–$30 Million of New Funding

Prompted by an SEC filing, Tumblr finally fesses up about its big funding round, which we noted a month ago. The final numbers: Sequoia, Spark and Union Square Ventures put in $30 million, for a post-money valuation of $155 million.


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There was a worry before I started this that I was going to burn every bridge I had. But I realize now that there are some bridges that are worth burning.

— Valleywag editor Sam Biddle