Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. Nutrisystem (NTRI) upgraded to Outperform from Market Perform at Barrington and to Neutral from Underperform at DA Davidson. 2. SeaWorld (SEAS) upgraded to Overweight from Sector Weight at KeyBanc with analyst Brett Andress saying de-risked expectations following the Q3 pre-announcement create an attractive entry point, as he sees further upside to shares, with his confidence in the company's turnaround bolstered by additional evidence of both a brand and business in recovery mode. 3. Sanofi (SNY) upgraded to Equal Weight from Underweight at Barclays with analyst Emmanuel Papadakis saying he sees a more balanced risk/reward profile at current share levels. 4. Asur (ASR) upgraded to Overweight from Neutral at JPMorgan with analyst Fernando Abdalla citing valuation. 5. Wex (WEX) upgraded to Outperform from Market Perform at Wells Fargo. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage, click here.

After IGM Biosciences (IGMS) announced that the company's exclusive worldwide collaboration agreement with Sanofi (SNY) to create and develop IgM agonist antibodies will now focus exclusively on immunology and inflammation targets, Stifel analyst Stephen Willey said the firm believes the re-focusing of the collaboration away from oncology and exclusively to the three, yet-to-be-disclosed IAI targets "removes some longer-term economic optionality," but ultimately doesn't change the firm's thesis on the stock. The firm, which adds that Sanofi's decision aligns with its continued prioritization of IAI development opportunities and doesn't reflect anything aplitabart-related and notes that IGM now regains full control of these oncology programs and could potentially re-monetize these assets via future partnerships, would be buyers on related weakness. Stifel has a Buy rating and $25 price target on IGM Biosciences shares.