Sources state Yahoo could pay $300M. However, an NDN spokeswoman says her company isn't in acquisition talks with Yahoo at this time.
NDN claims to deliver 100K+ videos to 4.5K+ publishers each month. Clients include the AP, Bloomberg, the NY Post, the Los Angeles Times. comScore estimates NDN's videos reached 51.4M U.S. unique viewers in January (#5 overall, and above Yahoo's 45M video viewers).
The WSJ's report follows one from re/code stating Yahoo is looking to poach leading YouTube content providers in an effort to grow its video content library and ad inventory.