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)