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ADAGE CAPITAL PARTNERS GP, L.L.C.

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13F filer, CIK 1165408, Boston, MA

ADAGE CAPITAL PARTNERS GP, L.L.C. reported $71,317,440,046 across 1,002 holdings for the quarter ended 2026-06-30, in a 13F-HR filed 2026-08-14. Its ten largest share positions make up 29.48% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001172661-26-003503

Period
2026-06-30
Reported value
$71.3B
Holdings
1,002
Top 10 weight
29.48%
New
178
Sold out
132

Largest buys vs the previous quarter

SecurityShares changeApprox. value
DVNadded+7,607,191$314M
KLACadded+819,886$247M
MRVLnew+745,800$222M
SYREnew+1,722,300$153M
UALadded+983,533$134M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
RVMDreduced-4,878,385-$914M
CNTAexited-8,925,010-$355M
CTRAexited-8,219,512-$289M
RPRXreduced-4,980,633-$279M
LLYreduced-230,618-$277M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Back to all 1,001 share positions

Principal amounts

Notes and convertibles filed as a face amount (PRN). A face amount is never added to a share count (H6).

SecurityTypeAmountValueChange
KOSMOS ENERGY LTDKOSMOS ENERGY LTD NOTE 3.125% 3/1principal41,392,000$30.1M0

Sold out in Q2 2026

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
CNTACENTESSA PHARMACEUTICALS PLC8,925,010$355Mshares
CTRACOTERRA ENERGY INC8,219,512$289Mshares
SOSOUTHERN CO1,186,900$115Mshares
TERNTERNS PHARMACEUTICALS INC2,124,817$112Mshares
VOYAVOYA FINANCIAL INC1,500,000$102Mshares
MDGLMADRIGAL PHARMACEUTICALS INC185,331$97Mshares
HONHONEYWELL INTL INC408,451$92.3Mshares
HOLXHOLOGIC INC858,013$64.9Mshares
GTLSCHART INDS INC296,469$61.3Mshares
HCAHCA HEALTHCARE INC116,200$55Mshares
DALDELTA AIR LINES INC781,911$52Mshares
FEFIRSTENERGY CORP886,700$44.9Mshares
SHELSHELL PLC480,000$44.6Mshares
THGHANOVER INS GROUP INC215,370$37.3Mshares
SUNBSUNBELT RENTALS HOLDINGS INC565,000$36.8Mshares
FITBFIFTH THIRD BANCORP776,297$36.1Mshares
ERASERASCA INC2,100,000$34Mshares
QRVOQORVO INC434,311$33.6Mshares
UNHUNITEDHEALTH GROUP INC120,000$32.5Mput
EDCONSOLIDATED EDISON INC278,344$31.5Mshares
DUKDUKE ENERGY CORP NEW230,113$30.1Mshares
PTGXPROTAGONIST THERAPEUTICS INC282,436$29.8Mshares
SSDSIMPSON MFG INC157,500$27Mshares
KMPRKEMPER CORP800,000$24.4Mshares
FOLDAMICUS THERAPEUTIC1,650,000$23.9Mshares
ACAAUAVERIN CAP ACQUISITION CORP2,250,000$22.5Mshares
ALGNALIGN TECHNOLOGY INC130,314$22.3Mshares
OCSOCULIS HOLDING AG833,209$22.2Mshares
CWANCLEARWATER ANALYTICS HLDGS I935,000$22.1Mshares
CCLCARNIVAL CORP827,300$21.4Mshares
SHAKSHAKE SHACK INC230,000$20.3Mshares
HIGHARTFORD INSURANCE GROUP INC149,832$20.3Mshares
VRDNVIRIDIAN THERAPEUTICS INC970,018$19Mshares
EQTEQT CORP294,100$18.7Mshares
ALHCALIGNMENT HEALTHCARE INC1,050,174$18.5Mshares
MTALUMETALS ACQUISITION CORP II1,800,000$18.2Mshares
UMBFUMB FINL CORP160,691$18.1Mshares
TMTSUSPARTACUS ACQUISITION CORP I1,800,000$18.1Mshares
KPETUKPET ULTRA PACELINE CORP1,800,000$18Mshares
CAQUUCAMBRIDGE ACQUISITION CORP1,800,000$17.9Mshares
SAIASAIA INC51,000$17.9Mshares
TRGSUTRG LATIN AMER ACQUIS CORP1,800,000$17.9Mshares
AACOUABONY ACQUISITION CORP I1,800,000$17.9Mshares
RJFRAYMOND JAMES FINL INC123,150$17.8Mshares
USARUSA RARE EARTH INC1,160,000$17.6Mshares
KNTKKINETIK HOLDINGS INC362,500$17.5Mshares
WSCWILLSCOT HLDGS CORP998,888$17.3Mshares
TKRTIMKEN CO168,169$16.9Mshares
SILASILA REALTY TRUST INC690,860$16.4Mshares
RHPRYMAN HOSPITALITY PPTYS INC176,312$16.3Mshares
DGDOLLAR GEN CORP132,200$15.7Mshares
BSXBOSTON SCIENTIFIC CORP250,000$15.7Mput
IPFXUINFLECTION PT ACQUISIT CORP1,500,000$15.2Mshares
QADRUQDRO ACQUISITION CORP1,500,000$14.9Mshares
DDDUPONT DE NEMOURS INC320,101$14.7Mshares
KMIKINDER MORGAN INC DEL433,854$14.5Mshares
FNFABRINET27,500$14.3Mshares
FHNFIRST HORIZON CORPORATION600,100$13.7Mshares
SUMAUSUMA ACQUISITION CORP1,350,000$13.5Mshares
PALOUPALOMA ACQUISITION CORP I1,350,000$13.5Mshares
NVGSNAVIGATOR HLDGS LTD695,000$13.4Mshares
ONBOLD NATL BANCORP IND605,000$13.4Mshares
SSRMSSR MINING IN450,000$13.2Mshares
LENLENNAR CORP142,517$12.4Mshares
EPRTESSENTIAL PPTYS RLTY TR INC400,000$12.1Mshares
ABUSARBUTUS BIOPHARMA CORP2,664,941$12Mshares
SLVMSYLVAMO CORP270,000$11.4Mshares
MWHSOLV ENERGY INC379,183$11.4Mshares
BWIVUBLUE WTR ACQUISITION CORP IV1,125,000$11.2Mshares
SYYSYSCO CORP154,024$11Mshares
SEMSELECT MED HLDGS CORP658,467$10.7Mshares
MDUMDU RES GROUP INC500,000$10.4Mshares
IMVTIMMUNOVANT INC413,000$10.3Mshares
BBARRICK MNG CORP250,000$10.2Mshares
WLIIUWILLOW LANE ACQUISITION CRP1,000,000$10.1Mshares
MMSIMERIT MED SYS INC140,000$9.65Mshares
GKOSGLAUKOS CORP81,878$8.81Mshares
FLOCFLOWCO HLDGS INC400,000$8.24Mshares
WVEWAVE LIFE SCIENCES LTD1,000,000$7.25Mshares
SUNCSUNOCOCORP LLC111,532$6.88Mshares
CTLPCANTALOUPE INC625,661$6.76Mshares
CAGCONAGRA BRANDS INC426,845$6.71Mshares
FPSFORGENT POWER SOLUTIONS INC227,427$6.66Mshares
CPTCAMDEN PPTY TR67,300$6.57Mshares
SIMOSILICON MOTION TECHNOLOGY CO54,687$6.14Mshares
KRPKIMBELL RTY PARTNERS LP365,000$5.28Mshares
CDECOEUR MNG INC275,000$5.16Mshares
PRIMPRIMORIS SVCS CORP35,192$5.03Mshares
STROSUTRO BIOPHARMA INC200,000$4.98Mshares
ASMBASSEMBLY BIOSCIENCES INC161,000$4.47Mshares
PENNPENN ENTERTAINMENT INC284,008$4.27Mshares
OLMAOLEMA PHARMACEUTICALS INC275,000$4.1Mshares
PNFPPINNACLE FINL PARTNERS INC47,383$4.08Mshares
ALXOALX ONCOLOGY HLDGS INC2,000,000$4.01Mshares
EPAMEPAM SYS INC29,300$3.97Mshares
UHSUNIVERSAL HLTH SVCS INC21,153$3.79Mshares
NJRNEW JERSEY RES CORP60,000$3.3Mshares
PGENPRECIGEN INC846,000$3.27Mshares
TRIPTRIPADVISOR INC300,000$3.2Mshares
HOSHORNBECK OFFSHORE SERVICES I300,000$2.97Mshares
TROWPRICE T ROWE GROUP INC29,201$2.63Mshares
CNTXCONTEXT THERAPEUTICS INC1,000,000$2.62Mshares
SIRISIRIUSXM HOLDINGS INC106,402$2.46Mshares
WHWYNDHAM HOTELS & RESORTS INC30,000$2.44Mshares
REPLREPLIMUNE GROUP INC307,368$2.35Mshares
MRXMAREX GROUP PLC48,107$2.14Mshares
NMRANEUMORA THERAPEUTICS INC.1,000,000$1.95Mshares
AFGAMERICAN FINANCIAL GROUP INC15,000$1.92Mshares
PSNLPERSONALIS INC300,000$1.91Mshares
CINFCINCINNATI FINL CORP10,469$1.65Mshares
IMUXIMMUNIC INC1,398,600$1.55Mshares
REXRREXFORD INDL RLTY INC47,135$1.54Mshares
ATIATI INC10,468$1.52Mshares
HACQUHCM IV ACQUISITION CORP150,000$1.5Mshares
MPMP MATERIALS CORP30,000$1.45Mshares
INOINOVIO PHARMACEUTICALS INC804,958$1.4Mshares
LRMRLARIMAR THERAPEUTICS INC300,000$1.35Mshares
ESRTEMPIRE ST RLTY TR INC230,000$1.2Mshares
PKPARK HOTELS & RESORTS INC100,000$1.05Mshares
IRTCIRHYTHM HOLDINGS INC8,289$978Kshares
APCARKO PETE CORP50,000$894Kshares
SHMDSCHMID GROUP N.V.125,000$662Kshares
BANCBANC OF CALIFORNIA INC32,907$579Kshares
SEPNSEPTERNA INC24,000$577Kshares
BBCQWBLEICHROEDER ACQUISITI CORP524,442$499Kshares
KOSKOSMOS ENERGY LTD150,000$417Kshares
WLTHWEALTHFRONT CORP33,400$309Kshares
VREVERIS RESIDENTIAL INC15,701$296Kshares
SACWSSAFEGUARD ACQUISITION CORP568,457$227Kshares
CCXIWCHURCHILL CAP CORP XI225,000$169Kshares
RICE ACQUISITION CORP 3RICE ACQUISITION CORP 3127,935$102Kshares
LANVIN GROUP HOLDINGS LIMITELANVIN GROUP HOLDINGS LIMITE64,733$712shares

How Q2 2026 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0001172661-26-003503 base2026-08-14acceptance time not in the bulk data set