MannKind Corporation (NASDAQ:MNKD) shares increased approximately 4.5% in pre-market trading to $4.60 following positive feedback from doctors regarding Afrezza, an inhalable insulin for people with diabetes.

Achillion Pharmaceuticals, Inc. (NASDAQ:ACHN) shares increased more than 6% in pre-market trading to $11.70 after the company cancelled their presentation at the UBS Global Healthcare Conference. The cancellation fuelled investor hopes that a suitor for the pharmaceutical company will present itself to benefit from Achillion’s hepatitis C pipeline.

Etsy Inc (NASDAQ:ETSY) shares rose 2.87% to $21.15 leading up to the company’s release of 1Q15 results today after market close. The online market place for crafts went public in late April for an IPO price of $16 and this report will be its first statement as a publicly traded company.

Opko Health Inc. (NYSE:OPK) shares increased 2.72% to $17.77 following six new clinical trial results regarding 4Kscore® being presented at the American Urological Association annual meeting over the past four days. The 4Kscore is a blood test that identifies a risk for prostate cancer.