$NAVIDEA BIOPHARMACEUTICALS I(NAVB)$ 8-K - Current report Filed: 2016-05-03 AccNo: 0001144204-16-098686 Size: 56 KBItem 2.04: Triggering Events That Accelerate or Increase a Direct Financial Obligation or an Obligation under an Off-Balance Sheet ArrangementItem 5.02: Departure of Directors or Certain Officers; E 网页链接