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Fairmount Funds Management LLC

13F filer · CIK 0001802528
Reported Aug 14, 2026
Net seller this quarter
13F portfolio value$1.51BU.S. long equity reported on 13F
Positions121 new · 1 closed
Net flow last quarter-$317MBuys minus sells
Top 10 positions weight97.6%Concentration

Holdings

13F · last 4 quarters free
Scroll for earlier quarters
CompanyValue% of portfolio% of companyPOSITION CHANGE qoq %First reported
Q2 2026Reported Aug 14, 202612 positions
ORKAOruka Therapeutics, Inc.$353M23.31%6.07%Not reportedQ3 2024
DNTHDianthus Therapeutics, Inc.$247M16.35%4.63%Not reportedQ3 2023
DMRADamora Therapeutics, Inc.$227M14.98%14.11%Not reportedQ1 2026
COGTCogent Biosciences, Inc.$213M14.08%3.21%Not reportedQ4 2020
JBIOJade Biosciences, Inc.$101M6.69%7.16%Not reportedQ2 2025
ELVNEnliven Therapeutics, Inc.$94.2M6.22%2.53%Not reportedQ1 2023
VRDNViridian Therapeutics, Inc.\DE$93.5M6.18%4.50%+30.1%Q1 2021
ZBIOZenas BioPharma, Inc.$59.9M3.96%3.72%Not reportedQ3 2024
CBIOCrescent Biopharma, Inc.$49.5M3.27%9.90%Not reportedQ2 2025
APGEApogee Therapeutics, Inc.$39.6M2.62%0.40%Not reportedQ3 2023
FTHFaeth Therapeutics, Inc.$18.1M1.19%2.80%NewQ2 2026
IKTInhibikase Therapeutics, Inc.$17.5M1.16%6.53%Not reportedQ4 2024
Q1 2026Reported May 15, 202612 positions
DMRADamora Therapeutics, Inc.$226M16.30%14.45%NewQ1 2026
DNTHDianthus Therapeutics, Inc.$213M15.38%4.65%+18.7%Q3 2023
COGTCogent Biosciences, Inc.$212M15.30%3.22%-38.9%Q4 2020
SYRESpyre Therapeutics, Inc.$203M14.64%5.10%Not reportedQ3 2023
ORKAOruka Therapeutics, Inc.$182M13.13%7.39%Not reportedQ3 2024
VRDNViridian Therapeutics, Inc.\DE$76.6M5.53%3.82%Not reportedQ1 2021
ELVNEnliven Therapeutics, Inc.$72.7M5.25%3.05%-50.0%Q1 2023
JBIOJade Biosciences, Inc.$64M4.62%9.23%Not reportedQ2 2025
CBIOCrescent Biopharma, Inc.$50.5M3.65%9.97%Not reportedQ2 2025
ZBIOZenas BioPharma, Inc.$46.1M3.33%3.78%+6.8%Q3 2024
APGEApogee Therapeutics, Inc.$25.1M1.82%0.40%-85.4%Q3 2023
IKTInhibikase Therapeutics, Inc.$14.5M1.05%6.53%Not reportedQ4 2024
Q4 2025Reported Feb 17, 202613 positions
COGTCogent Biosciences, Inc.$320M24.34%5.59%Not reportedQ4 2020
APGEApogee Therapeutics, Inc.$155M11.77%3.00%Not reportedQ3 2023
SYRESpyre Therapeutics, Inc.$132M10.02%5.14%Not reportedQ3 2023
VRDNViridian Therapeutics, Inc.\DE$122M9.27%3.84%+13.1%Q1 2021
ORKAOruka Therapeutics, Inc.$112M8.55%7.60%Not reportedQ3 2024
DNTHDianthus Therapeutics, Inc.$88.1M6.70%4.94%-35.4%Q3 2023
ZBIOZenas BioPharma, Inc.$80.2M6.11%4.05%+16.7%Q3 2024
NUVLNuvalent, Inc.$73.2M5.57%23.25%Not reportedQ3 2021
JBIOJade Biosciences, Inc.$70.3M5.35%9.23%+41.4%Q2 2025
ELVNEnliven Therapeutics, Inc.$57.2M4.35%6.24%Not reportedQ1 2023
KNSAKiniksa Pharmaceuticals International, plc$54.4M4.14%Not reported-25.6%Q4 2019
CBIOCrescent Biopharma, Inc.$32.6M2.48%9.97%+98.0%Q2 2025
IKTInhibikase Therapeutics, Inc.$17.7M1.35%6.55%+40.8%Q4 2024
Q3 2025Reported Nov 14, 202517 positions
DNTHDianthus Therapeutics, Inc.$130M11.71%7.72%+22.2%Q3 2023
COGTCogent Biosciences, Inc.$129M11.63%6.44%+44.6%Q4 2020
AXSMAxsome Therapeutics, Inc.$99M8.91%1.62%Not reportedQ1 2020
APGEApogee Therapeutics, Inc.$81.4M7.32%3.45%Not reportedQ3 2023
ELVNEnliven Therapeutics, Inc.$76M6.84%6.26%Not reportedQ1 2023
VRDNViridian Therapeutics, Inc.\DE$74.7M6.72%4.21%Not reportedQ1 2021
ORKAOruka Therapeutics, Inc.$71.3M6.41%7.66%+9.9%Q3 2024
KNSAKiniksa Pharmaceuticals International, plc$68.8M6.19%Not reportedNot reportedQ4 2019
SRRKScholar Rock Holding Corp$67.9M6.11%1.84%Not reportedQ4 2024
SYRESpyre Therapeutics, Inc.$67.3M6.06%6.64%Not reportedQ3 2023
NUVLNuvalent, Inc.$62.9M5.66%23.25%Not reportedQ3 2021
ABVXAbivax S.A.$60.6M5.45%1.13%NewQ3 2025
ZBIOZenas BioPharma, Inc.$42M3.78%4.48%Not reportedQ3 2024
JBIOJade Biosciences, Inc.$27.8M2.50%9.87%Not reportedQ2 2025
ATXSAstria Therapeutics, Inc.$25.9M2.33%6.30%Not reportedQ3 2021
CBIOCrescent Biopharma, Inc.$16.5M1.48%9.99%Not reportedQ2 2025
IKTInhibikase Therapeutics, Inc.$9.92M0.89%8.19%Not reportedQ4 2024
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