RA CAPITAL MANAGEMENT, L.P. Diversified Active

Location: BOSTON, MA

CIK: 0001346824 · Show all filings

Period: Q1 2026 (← Previous)

Filing Date: May 15, 2026

Total Value: $9.438B (100.0% shares, 0.0% debt)

Holdings (85)

New Positions (24)

SGP SPYGLASS PHARMA INC 2.2%
Value $208M Shares 8,021,117 Est. Cost $25.91 Unrealized
ZLAB ZAI LAB LTD-ADR 1.1%
Value $107M Shares 5,707,262 Est. Cost $18.81 Unrealized
SRPT SAREPTA THERAPEUTICS INC 0.9%
Value $84.92M Shares 3,902,596 Est. Cost $20.24 Unrealized 0.0%
GLTO DAMORA THERAPEUTICS INC 0.7%
Value $62.14M Shares 2,399,310 Est. Cost $25.80 Unrealized 0.0%
XNCR XENCOR INC 0.6%
Value $59.06M Shares 4,897,237 Est. Cost $12.66 Unrealized 0.0%
IPSC CENTURY THERAPEUTICS INC 0.4%
Value $40.13M Shares 17,754,430 Est. Cost $1.94 Unrealized 0.0%
MIRM MIRUM PHARMACEUTICALS INC 0.3%
Value $29.43M Shares 318,554 Est. Cost $96.57 Unrealized 0.0%
BIOA BIOAGE LABS INC 0.3%
Value $28.87M Shares 1,650,648 Est. Cost $19.20 Unrealized 0.0%
AKTS AKTIS ONCOLOGY INC 0.3%
Value $26.89M Shares 1,503,084 Est. Cost $17.89 Unrealized
ALXO ALX ONCOLOGY HOLDINGS INC 0.3%
Value $26.09M Shares 13,011,849 Est. Cost $1.77 Unrealized 0.0%
ACRS ACLARIS THERAPEUTICS INC 0.3%
Value $25.52M Shares 6,804,072 Est. Cost $3.33 Unrealized 0.0%
TVTX TRAVERE THERAPEUTICS INC 0.2%
Value $22.19M Shares 746,841 Est. Cost $31.03 Unrealized 0.0%
RLMD RELMADA THERAPEUTICS INC 0.2%
Value $20.51M Shares 2,947,369 Est. Cost $4.01 Unrealized 0.0%
DRUG BRIGHT MINDS BIOSCIENCES INC 0.2%
Value $19.34M Shares 265,000 Est. Cost $84.00 Unrealized 0.0%
STRO SUTRO BIOPHARMA INC 0.2%
Value $17.82M Shares 715,307 Est. Cost $15.08 Unrealized 0.0%
AVR ANTERIS TECHNOLOGIES GLOBAL 0.2%
Value $16.65M Shares 3,000,000 Est. Cost $5.58 Unrealized 0.0%
OKUR ONKURE THERAPEUTICS INC-A 0.2%
Value $16.55M Shares 3,998,333 Est. Cost $2.73 Unrealized 0.0%
HLXC HELIX ACQUISITION CORP-CL A 0.1%
Value $12.7M Shares 1,250,000 Est. Cost $10.16 Unrealized
RNA ATRIUM THERAPEUTICS INC 0.1%
Value $11.55M Shares 864,102 Est. Cost $13.37 Unrealized
KPTI KARYOPHARM THERAPEUTICS INC 0.1%
Value $10.68M Shares 1,917,354 Est. Cost $7.62 Unrealized 0.0%
CRVS CORVUS PHARMACEUTICALS INC 0.1%
Value $6.583M Shares 450,000 Est. Cost $16.29 Unrealized 0.0%
EQ EQUILLIUM INC 0.1%
Value $6.193M Shares 3,096,336 Est. Cost $1.44 Unrealized 0.0%
MGNX MACROGENICS INC 0.1%
Value $5.387M Shares 1,864,176 Est. Cost $1.76 Unrealized 0.0%
MPLT MAPLIGHT THERAPEUTICS INC 0.1%
Value $5.048M Shares 248,294 Est. Cost $17.62 Unrealized 0.0%

Increased Positions (16)

PCVX VAXCYTE INC 7.1%
Value $667M (+34.8%) Shares 11,474,599 (+7.0%) Est. Cost $51.31 Unrealized +2.8%
DNTH DIANTHUS THERAPEUTICS INC 2.3%
Value $219M (+230.0%) Shares 2,611,733 (+62.0%) Est. Cost $31.70 Unrealized +50.1%
WVE WAVE LIFE SCIENCES LTD 2.1%
Value $196M (-36.8%) Shares 26,975,505 (+48.2%) Est. Cost $10.32 Unrealized +33.3%
NUVL NUVALENT INC-A 2.8%
Value $260M (+37.3%) Shares 2,534,145 (+34.8%) Est. Cost $90.29 Unrealized +14.8%
MLYS MINERALYS THERAPEUTICS INC 2.2%
Value $208M (-21.6%) Shares 7,692,750 (+5.0%) Est. Cost $16.39 Unrealized +91.3%
SLDB SOLID BIOSCIENCES INC 0.7%
Value $67.25M (+105.2%) Shares 9,339,978 (+60.7%) Est. Cost $6.16 Unrealized -1.7%
BCAX BICARA THERAPEUTICS INC 1.5%
Value $144M (+23.3%) Shares 7,255,993 (+4.3%) Est. Cost $25.12 Unrealized -35.2%
EVMN EVOMMUNE INC 0.9%
Value $80.34M (+35.7%) Shares 3,494,638 (+1.0%) Est. Cost $18.82 Unrealized +16.9%
ABOS ACUMEN PHARMACEUTICALS INC 0.5%
Value $49.54M (+57.2%) Shares 20,992,669 (+40.6%) Est. Cost $9.92 Unrealized -77.0%
DSGN DESIGN THERAPEUTICS INC 0.3%
Value $31.63M (+130.8%) Shares 2,972,973 (+103.4%) Est. Cost $8.48 Unrealized +17.8%
HNGE HINGE HEALTH INC-A 0.1%
Value $14.06M (+277.8%) Shares 364,613 (+355.1%) Est. Cost $42.25 Unrealized -3.9%
WAY WAYSTAR HOLDING CORP 0.1%
Value $12.76M (+169.9%) Shares 529,400 (+266.6%) Est. Cost $29.71 Unrealized -7.5%
WGS GENEDX HOLDINGS CORP 0.1%
Value $13.48M (+78.5%) Shares 209,887 (+261.6%) Est. Cost $94.87 Unrealized +6.6%
INSP INSPIRE MEDICAL SYSTEMS INC 0.2%
Value $16.8M (+28.3%) Shares 325,663 (+129.4%) Est. Cost $87.35 Unrealized -11.4%
IRON DISC MEDICINE INC 1.7%
Value $157M (-0.2%) Shares 2,450,221 (+24.0%) Est. Cost $63.88 Unrealized +15.9%
ACET ADICET BIO INC 0.1%
Value $8.054M (+0.9%) Shares 1,182,624 (+24.7%) Est. Cost $10.40 Unrealized -25.4%

Exited Positions (10)

Decreased Positions (2)

Unchanged Positions (43)

ASND ASCENDIS PHARMA A/S - ADR 24.9%
Value $2.352B Shares 10,281,496 Est. Cost $82.85 Unrealized
TYRA TYRA BIOSCIENCES INC 5.0%
Value $467M Shares 12,198,625 Est. Cost $17.16 Unrealized +76.3%
RYTM RHYTHM PHARMACEUTICALS INC 6.1%
Value $580M Shares 6,666,837 Est. Cost $38.97 Unrealized +163.9%
PEPG PEPGEN INC 0.4%
Value $35.51M Shares 20,064,545 Est. Cost $6.78 Unrealized -14.0%
EWTX EDGEWISE THERAPEUTICS INC 3.5%
Value $328M Shares 10,428,437 Est. Cost $15.67 Unrealized +79.8%
SPRY ARS PHARMACEUTICALS INC 0.9%
Value $87.21M Shares 10,860,977 Est. Cost $6.66 Unrealized +53.7%
NAMS NEWAMSTERDAM PHARMA CO NV 3.2%
Value $306M Shares 9,550,191 Est. Cost $14.02 Unrealized +140.8%
SYRE SPYRE THERAPEUTICS INC 0.9%
Value $81.79M Shares 1,621,620 Est. Cost $26.13 Unrealized +32.2%
LENZ LENZ THERAPEUTICS INC 0.4%
Value $38.24M Shares 4,178,823 Est. Cost $20.79 Unrealized -24.3%
BCRX BIOCRYST PHARMACEUTICALS INC 1.6%
Value $151M Shares 15,827,186 Est. Cost $7.23 Unrealized -3.2%
SEPN SEPTERNA INC 1.8%
Value $168M Shares 6,995,858 Est. Cost $23.65 Unrealized +12.1%
OLMA OLEMA PHARMACEUTICALS INC 0.4%
Value $38.77M Shares 2,600,000 Est. Cost $17.79 Unrealized +43.1%
VOR VOR BIOPHARMA INC 1.0%
Value $96.43M Shares 5,404,998 Est. Cost $26.54 Unrealized -47.3%
TSHA TAYSHA GENE THERAPIES INC 1.1%
Value $105M Shares 23,555,648 Est. Cost $2.03 Unrealized +134.3%
FULC FULCRUM THERAPEUTICS INC 0.5%
Value $46.43M Shares 6,053,960 Est. Cost $7.35 Unrealized +41.2%
ARTV ARTIVA BIOTHERAPEUTICS INC 0.7%
Value $63.46M Shares 9,853,302 Est. Cost $11.59 Unrealized -61.9%
LXEO LEXEO THERAPEUTICS INC 0.3%
Value $28.7M Shares 5,000,000 Est. Cost $9.13 Unrealized -17.4%
GRAL GRAIL INC 0.2%
Value $22.13M Shares 428,266 Est. Cost $86.40 Unrealized +9.2%
GERN GERON CORP 1.0%
Value $95.02M Shares 63,771,366 Est. Cost $2.37 Unrealized -36.3%
GHRS GH RESEARCH PLC 1.1%
Value $108M Shares 7,676,697 Est. Cost $15.85 Unrealized -0.9%
SION SIONNA THERAPEUTICS INC 4.2%
Value $397M Shares 9,905,045 Est. Cost $16.34 Unrealized +140.2%
PRAX PRAXIS PRECISION MEDICINES I 1.3%
Value $120M Shares 373,787 Est. Cost $186.22 Unrealized +67.4%
ACRV ACRIVON THERAPEUTICS INC 0.1%
Value $11.59M Shares 8,340,508 Est. Cost $10.73 Unrealized -82.8%
MNPR MONOPAR THERAPEUTICS INC 0.4%
Value $36.56M Shares 667,207 Est. Cost $31.96 Unrealized +96.5%
ASMB ASSEMBLY BIOSCIENCES INC 0.3%
Value $28.32M Shares 1,020,410 Est. Cost $21.94 Unrealized +29.9%
RZLT REZOLUTE INC 0.3%
Value $28M Shares 9,180,000 Est. Cost $7.84 Unrealized -61.0%
OVID OVID THERAPEUTICS INC 0.3%
Value $23.79M Shares 10,714,000 Est. Cost $1.54 Unrealized +3.6%
CCCC C4 THERAPEUTICS INC 0.2%
Value $21.04M Shares 8,000,000 Est. Cost $2.37 Unrealized -11.9%
LBRX LB PHARMACEUTICALS INC 0.6%
Value $54.46M Shares 2,208,604 Est. Cost $16.18 Unrealized +38.3%
RANI RANI THERAPEUTICS HOLDINGS-A 0.1%
Value $6.246M Shares 8,500,000 Est. Cost $1.51 Unrealized -12.3%
BNTC BENITEC BIOPHARMA INC 0.2%
Value $19.7M Shares 1,850,000 Est. Cost $13.83 Unrealized -14.8%
JBIO JADE BIOSCIENCES INC 0.5%
Value $51.58M Shares 3,671,083 Est. Cost $17.98 Unrealized -17.7%
PALI PALISADE BIO INC 0.1%
Value $12.47M Shares 7,124,116 Est. Cost $1.92 Unrealized -7.2%
NKTX NKARTA INC 0.2%
Value $22.8M Shares 10,805,129 Est. Cost $20.85 Unrealized -89.5%
CAPR CAPRICOR THERAPEUTICS INC 0.5%
Value $45.84M Shares 1,507,844 Est. Cost $13.06 Unrealized +90.5%
AVTX AVALO THERAPEUTICS INC 0.1%
Value $9.898M Shares 662,968 Est. Cost $10.31 Unrealized +50.3%
PCSC PERCEPTIVE CAPITAL SOLUTIONS 0.1%
Value $8.227M Shares 750,000 Est. Cost $10.07 Unrealized +35.3%
HOWL WEREWOLF THERAPEUTICS INC 0.1%
Value $5.563M Shares 6,681,307 Est. Cost $9.71 Unrealized -93.4%
JANX JANUX THERAPEUTICS INC 1.6%
Value $156M Shares 11,189,693 Est. Cost $26.21 Unrealized -47.9%
NAMSW NEWAMSTERDAM PHARMA CO NV-27 0.1%
Value $6.68M Shares 333,333 Est. Cost $0.87 Unrealized
SABS SAB BIOTHERAPEUTICS INC 0.2%
Value $16.86M Shares 4,401,500 Est. Cost $2.26 Unrealized +77.0%
CLYM CLIMB BIO INC 0.8%
Value $77.41M Shares 11,300,939 Est. Cost $12.52 Unrealized -60.1%
PTN PALATIN TECHNOLOGIES INC 0.0%
Value $1.219M Shares 70,000 Est. Cost $13.14 Unrealized +32.8%