The last time Samantha Truex was CEO of a biotech, she did something rare: She admitted defeat. Quench Bio was wrapping up after a “successful failure” and doing so with money in the bank to hand some capital back to investors. Now, Truex is back at the helm of Upstream Bio, a new inflammatory disease biotech that has been quietly building over the past few months and is ready to reveal today with a whopping $200 million series A financing. That number is near the top in terms of funds raised this year so far, as biotechs take a beating on the market and an industry correction takes place.