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  • RA CAPITAL MANAGEMENT, L.P. (Data extracted from 13F, 13D, 13G and Form 4)

RA CAPITAL MANAGEMENT, L.P.

AUM: $11.32 B
13-F Portfolio Value: $11.51 B
Last 13-F Filed: Q2 2026
Concentration in top 10: 60.42%
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Stock Company % Portfolio Shares Held Market Value Change in Shares % Change Quarter End Price Source
ASNDASCENDIS PHARMA A/S21.31%10,281,496$2,742,280,61310,281,496New$266.7213F
PBLSParabilis Medicines, Inc.6.77%29,177,964$868,627,988244,5930.85%Form 4
RYTMRHYTHM PHARMACEUTICALS INC5.75%6,666,837$740,218,912No Change$111.0313F
PCVXVAXCYTE INC5.18%11,474,599$667,018,440No Change$58.1313F
SIONSIONNA THERAPEUTICS INC3.39%9,905,045$435,722,930No Change$43.9913F
TYRATYRA BIOSCIENCES, INC.3.13%14,130,492$359,338,4121,931,86715.84%13D
EWTXEDGEWISE THERAPEUTICS INC2.65%8,392,730$340,996,620-2,035,707-19.52%$40.6313F
NAMSNEWAMSTERDAM PHARMA CO NV2.52%9,550,191$323,655,973No Change$33.8913F
CLYMClimb Bio, Inc.2.35%23,249,186$299,914,49911,948,247105.73%13D
COAGHEMAB THERAPEUTICS HOLDINGS2.23%7,808,627$286,810,8707,808,627New$36.7313F
DBVTDBV TECHNOLOGIES S.A.2.08%18,288,220$252,560,31818,288,220New13G
WVEWave Life Sciences, Inc.1.78%34,314,406$209,317,87734,314,406New13D
BCAXBICARA THERAPEUTICS INC1.67%7,255,993$215,430,432No Change$29.6913F
MLYSMINERALYS THERAPEUTICS INC1.61%7,692,750$207,550,395No Change$26.9813F
SEPNSepterna, Inc.1.59%4,777,415$203,040,138-2,218,443-31.71%Form 4
FRNMFreenome, Inc.1.48%15,367,270$183,638,87715,367,270New13D
ARTVArtiva Biotherapeutics, Inc.1.44%18,489,293$183,598,679533,6512.97%Form 4
IRONDISC MEDICINE INC1.39%2,450,221$179,209,164No Change$73.1413F
SGPSPYGLASS PHARMA INC1.39%8,021,117$178,550,064No Change$22.2613F
JANXJANUX THERAPEUTICS INC1.34%11,189,693$171,873,684No Change$15.3613F
GHRSGH Research PLC1.29%4,897,182$148,090,784-2,739,631-35.87%13G
TSHATAYSHA GENE THERAPIES INC1.25%23,555,648$160,413,963No Change$6.8113F
BCRXBIOCRYST PHARMACEUTICALS INC1.23%15,827,186$158,271,860No Change$1013F
WVEWAVE LIFE SCIENCES LTD1.22%26,975,505$156,727,684No Change$5.8113F
NUVLNUVALENT INC-A1.20%1,246,456$153,937,316-1,287,689-50.81%$123.513F
ABVXABIVAX SA-ADR1.17%1,132,557$150,924,5461,132,557New$133.2613F
ORKAORUKA THERAPEUTICS INC1.15%1,554,597$147,950,9961,554,597New$95.1713F
OBXObsidian Therapeutics, Inc.0.95%5,957,103$113,125,3865,957,103New13G
SLDBSOLID BIOSCIENCES INC0.93%12,036,126$120,240,8992,696,14828.87%$9.9913F
LTGOLatigo Biotherapeutics, Inc.0.85%5,295,690$98,288,0065,295,690New13G
ZLABZAI LAB LTD-ADR0.85%5,743,533$109,127,12736,2710.64%$1913F
VORVor Biopharma Inc.0.69%4,501,882$88,912,1702,099,78787.41%Form 4
SPRYARS PHARMACEUTICALS INC0.68%10,860,977$86,996,426No Change$8.0113F
XNCRXENCOR INC0.66%5,274,274$84,915,811377,0377.7%$16.113F
JBIOJADE BIOSCIENCES INC0.63%3,671,083$81,571,464No Change$22.2213F
NTLAINTELLIA THERAPEUTICS INC0.60%4,526,926$76,595,5884,526,926New$16.9213F
LBRXLB PHARMACEUTICALS INC0.56%2,208,604$71,680,243No Change$32.4613F
DFTXDEFINIUM THERAPEUTICS INC0.55%1,500,000$70,560,0001,500,000New$47.0413F
ACRSACLARIS THERAPEUTICS INC0.52%12,723,026$67,304,8085,918,95486.99%$5.2913F
FDMT4D MOLECULAR THERAPEUTICS IN0.52%5,049,779$67,162,061No Change$13.313F
SANASANA BIOTECHNOLOGY INC0.51%18,750,000$65,437,50018,750,000New$3.4913F
DMRADAMORA THERAPEUTICS INC0.49%2,399,702$62,416,2493920.02%$26.0113F
MNPRMONOPAR THERAPEUTICS INC0.48%667,207$61,776,696No Change$92.5913F
ABOSACUMEN PHARMACEUTICALS INC0.44%20,992,669$56,050,426No Change$2.6713F
GERNGERON CORP0.43%42,809,751$54,796,481-20,961,615-32.87%$1.2813F
RZLTREZOLUTE INC0.38%9,445,039$49,114,203265,0392.89%$5.213F
EVMNEVOMMUNE INC0.36%3,494,638$46,443,739No Change$13.2913F
IPSCCENTURY THERAPEUTICS INC0.34%17,754,430$43,498,354No Change$2.4513F
AKTSAKTIS ONCOLOGY INC0.33%1,314,405$42,363,273-188,679-12.55%$32.2313F
BIOABIOAGE LABS INC0.32%1,671,648$40,972,09221,0001.27%$24.5113F
SABSSAB Biotherapeutics, Inc.0.31%9,609,852$36,997,9305,208,352118.33%13D
CCCCC4 THERAPEUTICS INC0.29%8,000,000$37,360,000No Change$4.6713F
MIRMMIRUM PHARMACEUTICALS INC0.29%318,554$37,293,117No Change$117.0713F
PEPGPEPGEN INC0.28%20,064,545$36,116,181No Change$1.813F
SCTXScribe Therapeutics Inc.0.28%1,802,178$34,187,3171,802,178New13G
IKTInhibikase Therapeutics, Inc.0.27%14,653,994$32,385,32714,653,994New13G
PRLDPRELUDE THERAPEUTICS INC0.27%6,475,882$34,516,4516,475,882New$5.3313F
NKTXNKARTA INC0.24%10,805,129$30,578,515No Change$2.8313F
AVRANTERIS TECHNOLOGIES GLOBAL0.23%3,000,000$29,550,000No Change$9.8513F
QTTBQ32 BIO INC0.23%2,332,457$29,715,5022,332,457New$12.7413F
ASMBASSEMBLY BIOSCIENCES INC0.22%1,020,410$28,040,867No Change$27.4813F
EDITEDITAS MEDICINE INC0.22%8,889,000$28,800,3608,889,000New$3.2413F
OVIDOVID THERAPEUTICS INC0.22%10,500,968$28,247,604-213,032-1.99%$2.6913F
ALXOALX ONCOLOGY HOLDINGS INC0.21%13,011,849$26,934,527No Change$2.0713F
AGENAgenus Inc.0.21%4,344,772$26,590,0054,344,772New13G
BNTCBENITEC BIOPHARMA INC0.19%1,850,000$24,753,000No Change$13.3813F
LENZLENZ THERAPEUTICS INC0.18%4,178,823$23,735,715No Change$5.6813F
LXEOLEXEO THERAPEUTICS INC0.18%5,000,000$23,275,000No Change$4.6613F
ACRVACRIVON THERAPEUTICS INC0.17%12,229,396$21,768,3253,888,88846.63%$1.7813F
CAPRCapricor Therapeutics, Inc.0.17%3,014,183$21,099,2811,506,33999.90%13G
ALTALTIMMUNE INC0.15%6,500,000$19,760,0006,500,000New$3.0413F
KPTIKARYOPHARM THERAPEUTICS INC0.15%1,917,354$18,732,549No Change$9.7713F
AURAAURA BIOSCIENCES INC0.14%2,500,000$17,750,0002,500,000New$7.113F
AVTXAVALO THERAPEUTICS INC0.14%1,000,000$18,480,000337,03250.84%$18.4813F
DRUGBRIGHT MINDS BIOSCIENCES INC0.14%265,000$18,603,000No Change$70.213F
OKURONKURE THERAPEUTICS INC-A0.14%3,998,333$18,232,398No Change$4.5613F
FTHFAETH THERAPEUTICS INC0.14%722,020$18,050,500722,020New$2513F
PALIPALISADE BIO INC0.12%7,124,116$14,889,402No Change$2.0913F
SPTXSEAPORT THERAPEUTICS INC0.12%700,000$15,204,000700,000New$21.7213F
HLXCHELIX ACQUISITION CORP-CL A0.10%1,250,000$13,300,000No Change$10.6413F
EQEQUILLIUM INC0.08%3,096,336$9,908,275No Change$3.213F
WAYWAYSTAR HOLDING CORP0.08%529,400$10,868,582No Change$20.5313F
MGNXMACROGENICS INC0.07%1,864,176$8,612,493No Change$4.6213F
ACETADICET BIO INC0.06%932,624$8,057,871-250,000-21.14%$8.6413F
INOInovio Pharmaceuticals, Inc.0.06%10,666,523$7,253,23610,666,523New13G
PCSCPERCEPTIVE CAPITAL SOLUTIONS0.06%750,000$8,160,000No Change$10.8813F
NAMSWNEWAMSTERDAM PHARMA CO NV-270.06%333,333$7,123,326No Change$21.3713F
CRVSCORVUS PHARMACEUTICALS INC0.05%450,000$6,723,000No Change$14.9413F
RANIRANI THERAPEUTICS HOLDINGS-A0.05%8,500,000$6,463,400No Change$0.7613F
TCGXTCGX Acquisition Corp.0.05%500,000$5,880,000500,000New13G
JATTJATT II ACQUISITION CORP0.04%500,000$5,680,000500,000New$11.3613F
JTTTJATT III Acquisition Corp0.04%450,000$4,995,000450,000New13G
AMANAMANAT ACQUISITION CORP CL A0.03%375,000$3,810,000375,000New$10.1613F
HOWLWEREWOLF THERAPEUTICS INC0.00668%2,387,744$859,349-4,293,563-64.26%$0.3613F
PTNPALATIN TECHNOLOGIES INC0.00521%62,124$670,318-7,876-11.25%$10.7913F
SYRESPYRE THERAPEUTICS INC-1,621,620Exited13F
ASNDASCENDIS PHARMA A/S - ADR-10,281,496Exited13F
RNAATRIUM THERAPEUTICS INC-864,102Exited13F
CTNMCONTINEUM THERAPEUTICS INC-A-1,296,012Exited13F
DSGNDESIGN THERAPEUTICS INC-2,972,973Exited13F
DNTHDIANTHUS THERAPEUTICS INC-2,611,733Exited13F
FULCFULCRUM THERAPEUTICS INC-6,053,960Exited13F
GRALGRAIL INC-428,266Exited13F
HNGEHINGE HEALTH INC-A-364,613Exited13F
INSPINSPIRE MEDICAL SYSTEMS INC-325,663Exited13F
MPLTMAPLIGHT THERAPEUTICS INC-248,294Exited13F
OLMAOLEMA PHARMACEUTICALS INC-2,600,000Exited13F
PRAXPRAXIS PRECISION MEDICINES I-373,787Exited13F
RLMDRELMADA THERAPEUTICS INC-2,947,369Exited13F
SRPTSAREPTA THERAPEUTICS INC-3,902,596Exited13F
WGSGENEDX HOLDINGS CORP-209,887Exited13F
STROSUTRO BIOPHARMA INC-715,307Exited13F
TVTXTRAVERE THERAPEUTICS INC-746,841Exited13F