Today's pre-market stock movers: DELL, ULTA, COST, GPS and more

• $Red Robin(RRGB.US)$ +13.8% (In reaction to earnings)

• $PMV Pharmaceuticals(PMVP.US)$ +11.2% (ASCO-related announcement)

• $Sumo Logic(SUMO.US)$ +10.8% (In reaction to earnings)

• $Adicet Bio(ACET.US)$ +9.6% (ASCO-related announcement)

• $Dell Technologies(DELL.US)$ +9.6% (In reaction to earnings)

• $ImmunoGen(IMGN.US)$ +8.7% (ASCO-related announcement)

• $Ulta Beauty(ULTA.US)$ +7.9% (In reaction to earnings)

• $Zymergen(ZY.US)$ +7.8% (to sell modular automation system to Octant)

• $Zymeworks(ZYME.US)$ +7.5% (ASCO-related announcement also All Blue Falcons increased active stake to 6.91% following the purchase of 570K shares (transaction dates 5/23-5/26))

• $PDS Biotechnology(PDSB.US)$ +5.4% (ASCO-related announcement)

• $Bicycle Therapeutics(BCYC.US)$ +5% (ASCO-related announcement)

• $Myriad Genetics(MYGN.US)$ +5% (ASCO-related announcement)

• $OncoCyte(OCX.US)$ +3.9% (ASCO-related announcement)

• $Arbutus Biopharma(ABUS.US)$ +2.6% (ASCO-related announcement)

• $Owens-Illinois(OI.US)$ +2.6% (subsidiary Paddock Enterprises plan of reorganization confirmed by U.S. Court)

• $LyondellBasell Industries(LYB.US)$ +2.2% (announces $5.20/share special dividend and increases quarterly dividend by 5% to $1.19/share)

• $Boot Barn Holdings(BOOT.US)$ +2.8% (upgraded to Outperform from Neutral at Robert Baird)

• $Graphic Packaging(GPK.US)$ +2.6% (upgraded to Outperform from Market Perform at BMO Capital Markets)

• $Boston Scientific(BSX.US)$ +1.8% (upgraded to Buy from Hold at Needham)

• $HCA Healthcare(HCA.US)$ +1.5% (upgraded to Outperform from Mkt Perform at Bernstein)

• $Iovance Biotherapeutics(IOVA.US)$ -44.4% (announces clinical data for lifileucel in advanced melanoma)

• $SpringWorks Therapeutics(SWTX.US)$ -33.7% (ASCO-related announcement)

• $Mirati Therapeutics(MRTX.US)$ -23.9% (ASCO-related announcement)

• $Big Lots(BIG.US)$ -20.2% (In reaction to earnings)

• $Gap Inc(GPS.US)$ -18.6% (In reaction to earnings)

• $Aurora Cannabis(ACB.US)$ -14.3% (announces $125 mln bought deal financing)

• $Aadi Biosciences(AADI.US)$ -6.2% (ASCO-related announcement)

• $Protagonist Therapeutics(PTGX.US)$ -4.9% (ASCO-related announcement)

• $Takeda Pharmaceutical(TAK.US)$ -2.3% (ASCO-related announcement)

• $Kinnate BioPharma(KNTE.US)$ -2.3% (ASCO-related announcement)

• $Costco(COST.US)$ -1.8% (In reaction to earnings)

• $Harrow(HROW.US)$ -1.5% (files for $300 mln mixed securities shelf offering)

• $Macy's(M.US)$ -1.2% (files mixed securities shelf offering)

• $Greif(GEF.US)$ -1.6% (downgraded to Market Perform from Outperform at BMO Capital Markets)

• $CVS Health(CVS.US)$ -1% (downgraded to Mkt Perform from Outperform at Bernstein)