Fairmount Funds Management LLC — 13F Holdings

2026 Q1  ·  14 Positions

2026 Q1 Portfolio Activity

In 2026 Q1, Fairmount Funds Management LLC maintained a portfolio of 14 distinct positions. The most significant new addition was DAMORA THERAPEUTICS INC, now representing 16.30% of the total fund value. They heavily accumulated shares in DIANTHUS THERAPEUTICS INC, increasing the position by 18.7%. The fund also reduced its exposure to APOGEE THERAPEUTICS INC by 85.4%.
Position History hover any row below to update
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PCA Score Concentration Risk
Risk ENB
Total Positions
14
Quarter
2026 Q1
Top Holding
GLTO (16.3%)
Top 10 Concentration
97.1%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-14 of 14

Fairmount Funds Management LLC Full Holdings List — 2026 Q1

Stock History Sector / Type Port % Prev % Rank / Prev Conviction
Freshness
Change % Change Influence Shares Mkt Value Avg Cost Price Held 1st Owned Source Source Date Date Reported
GLTO
DAMORA THERAPEU...
Healthcare 16.30% #1
Prev: #—
9.5
8,713,000
NEW
8,713,000 $225,666,700 2026 Q1 13F Filing 2026-03-31 2026-05-15
DNTH
DIANTHUS THERAP...
Healthcare 15.38% 6.70% #2 4
Prev: #6
7.5
400,000 18.7%
P
S
2,537,191 $212,921,069 2023 Q3 13F Filing 2026-03-31 2026-05-15
COGT
COGENT BIOSCIEN...
Healthcare 15.30% 24.34% #3 2
Prev: #1
5.0
-3,500,000 -38.9%
P
S
5,503,418 $211,826,559 2020 Q4 13F Filing 2026-03-31 2026-05-15
SYRE
SPYRE THERAPEUT...
Healthcare 14.64% 10.02% #4 1
Prev: #3
5.5
no change no change
P
S
4,018,101 $202,673,014 2023 Q3 13F Filing 2026-03-31 2026-05-15
ORKA
ORUKA THERAPEUT...
Healthcare 13.13% 8.55% #5
Prev: #5
5.5
no change no change
P
S
3,705,262 $181,743,101 2024 Q3 13F Filing 2026-03-31 2026-05-15
VRDN
VIRIDIAN THERAP...
Healthcare 5.53% 9.27% #6 2
Prev: #4
3.2
no change no change
P
S
3,914,458 $76,566,798 2021 Q1 13F Filing 2026-03-31 2026-05-15
ELVN
ENLIVEN THERAPE...
Healthcare 5.25% 4.35% #7 3
Prev: #10
2.1
-1,855,800 -50.0%
P
S
1,855,644 $72,741,245 2023 Q1 13F Filing 2026-03-31 2026-05-15
JBIO
JADE BIOSCIENCE...
Healthcare 4.62% 5.35% #8 1
Prev: #9
2.8
no change no change
P
S
4,553,494 $63,976,591 2025 Q2 13F Filing 2026-03-31 2026-05-15
N/A
CRESCENT BIOPHA...
Unknown 3.65% 2.48% #9 3
Prev: #12
2.5
no change no change
P
S
2,747,866 $50,478,298 13F Filing 2026-03-31 2026-05-15
ZBIO
ZENAS BIOPHARMA...
Healthcare 3.33% 6.11% #10 3
Prev: #7
3.3
150,000 6.8%
P
S
2,359,025 $46,118,939 2024 Q3 13F Filing 2026-03-31 2026-05-15
APGE
APOGEE THERAPEU...
Healthcare 1.82% 11.77% #11 9
Prev: #2
0.7
-1,750,000 -85.4%
P
S
298,647 $25,137,118 2023 Q3 13F Filing 2026-03-31 2026-05-15
IKT
INHIBIKASE THER...
Healthcare 1.05% 1.35% #12 1
Prev: #13
1.4
no change no change
P
S
8,625,000 $14,490,000 2024 Q4 13F Filing 2026-03-31 2026-05-15
KNSA
KINIKSA PHARMAC...
Healthcare 0.00% 4.14%
Sold All 😨
(Was: #11)
0.0
-1,319,688 -100.0%
CLOSED
$— 2024 Q2 13F Filing 2026-03-31 2026-05-15
NUVL
NUVALENT INC
Healthcare 0.00% 5.57%
Sold All 😨
(Was: #8)
0.0
-727,563 -100.0%
CLOSED
$— 2021 Q3 13F Filing 2026-03-31 2026-05-15
Showing 1-14 of 14 holdings

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