April 20 (Reuters) - Wall Street's main indexes were poised for a lower open on Monday after a record rally on Wall Street last week, as renewed U.S.-Iran tensions threatened a ceasefire and dented investor sentiment. .N

** Ryanair Holdings PLC RYAAY.O:

** Carnival Corp CCL.N:
BUZZ - European travel and leisure stocks fall on US-Iran tension nL8N41306K

** American Airlines Group Inc AAL.O:
BUZZ - Dips premarket after carrier rules out United merger talks nL4N4130FL

** Gitlab Inc GTLB.O:
BUZZ - Drops after RBC downgrades rating to 'sector perform' nL6N4130JG

** Marvell Technology Inc MRVL.O:
BUZZ - Climbs on report of Google AI chip talks nL6N4130IN

** AtaiBeckley Inc ATAI.O:

** Definium Therapeutics Inc DFTX.O:

** Compass Pathways PLC CMPS.O:

** GH Research PLC GHRS.O:
BUZZ - Psychedelic drug developers rise after Trump signals regulatory support nL4N4130HR

** QXO Inc QXO.N:
BUZZ - Falls after $17 bln TopBuild acquisition deal nL6N4130JC

** Exxon Mobil Corp XOM.N:

** Chevron Corp CVX.N:

** Occidental Petroleum Corp OXY.N:

** Devon Energy Corp DVN.N:
BUZZ - US energy companies rise on fears of US-Iran ceasefire collapse nL6N4130LF

** AST SpaceMobile Inc ASTS.O:
BUZZ - Slips after satellite launch failure nL6N4130JR

** Newmont Corp NEM.N:

** Gold Fields Ltd GFI.N:

** AngloGold Ashanti PLC AU.N:

** Harmony Gold Mining Co Ltd HMY.N:

BUZZ - Gold miners fall on inflation woes and firmer dollar nL6N4130MV

** USA Rare Earth Inc USAR.O:
BUZZ - To acquire Serra Verde for $2.8 billion; shares plunge nL6N4130NL

** Amazon.com Inc AMZN.O:
BUZZ - BofA raises Amazon's PT on strong AWS growth outlook nL6N4130NF

** Perspective Therapeutics Inc CATX.N:
BUZZ - Rises as experimental cancer drug shows promise nL4N4130LL

** Greenwich LifeSciences Inc GLSI.O:
BUZZ - Rises on breast cancer vaccine immune data nL4N4130LV

** Meta Platforms Inc META.O:
BUZZ - Shares edge down; BofA flags macro risks amid expected layoffs nL6N4130O1

** Fermi Inc FRMI.O:
BUZZ - Shares fall after announcing CEO, CFO departure nL6N4130MI

** Cleveland-Cliffs Inc CLF.N:
BUZZ - Inches up on Q1 revenue beat nL6N4130OT

** Passage Bio Inc PASG.O:
BUZZ - Rises as early‑stage data for rare dementia gene therapy shows promise nL4N4130P0

** Lionsgate Studios Corp LION.N:
BUZZ - Citi expects Lionsgate Studios sale after Starz split, shares rises nL6N4130PI

** Biogen Inc BIIB.O:
BUZZ - Rises after buying China rights to kidney disease drug nL4N4130QE

** TopBuild Corp BLD.N:
BUZZ - Jumps after QXO to buy co in $17 billion deal nL4N4130PX

** Okta Inc OKTA.O:
BUZZ - Rises after Barclays upgrades to 'overweight' nL6N4130QJ

** RBC Bearings Inc RBC.N:

** Stifel Financial Corp SF.N:

** Jefferies Financial Group Inc JEF.N:

** J.P.Morgan Chase & Co JPM.N:
BUZZ - Brokerages trim Badger Meter PT on Q1 revenue miss nL4N4130R3

** Sable Offshore Corp SOC.N:
BUZZ - Gains on litigation claims of about $447 mln nL6N4130PW

** Hecla Mining Co HL.N:

** Coeur Mining Inc CDE.N:

** Endeavour Silver Corp EXK.N:

** Silvercorp Metals Inc SVM.N:

BUZZ - Silver miners fall as metal prices edge lower on strong US dollar nL4N4130RB

** Rio Tinto PLC RIO.N:

** BHP Group Ltd BHP.N:

** Southern Copper Corp SCCO.N:

** Freeport-McMoRan Inc FCX.N:

BUZZ - Copper miners fall as red metal slips on US-Iran ceasefire doubts nL4N4130SN

** Celldex Therapeutics Inc CLDX.O:
BUZZ - Climbs after Barclays' double upgrade nL4N4130SU

** Nektar Therapeutics NKTR.O:
BUZZ - Rises after alopecia treatment shows hair regrowth in study nL4N4130TX

** Whirlpool Corp WHR.N:
BUZZ - Mizuho initiates Whirlpool with 'neutral' rating; flags margin pressure nL4N4130TT

** MDA Space Ltd MDA.N:
BUZZ - US shares rise as Airbus orders OneWeb satellite antennas nL6N4130ST

** Surf Air Mobility Inc SRFM.N:
BUZZ - Drops on $15 mln direct stock deal nL6N4130SS