FAIRMOUNT FUNDS MANAGEMENT LLC
Q1 2025 Form 13-F

WEST CONSHOHOCKEN, PENNSYLVANIA
CIK 0001802528 · CRD 284844 · SEC-registered investment adviser
$644.6M Reported Value Total

FAIRMOUNT FUNDS MANAGEMENT LLC reports 3 total accounts under management (AUM). There are 3 discretionary accounts valued at $3,168,724,000, and 0 non-discretionary accounts.

Source: Form ADV filed * Note that certain holdings are exempt from Form 13-F reporting, so the AUM totals may be greater than the Form 13-F total.
SEC Registered Discretionary Manager
Private funds (Form ADV)
12 funds · $6.1B gross asset value
Hedge Fund: $5.7B · Private Equity Fund: $342.0M
Source: Form ADV filed 2026-08-07
Reported value
$644.6M
Quarter over quarter
-13.8%
Holdings
15
Top-10 concentration
87.3%

Key People

Form ADV owners & control persons
Peter Evan Harwin
MANAGING MEMBER
Tomas Kiselak
MANAGING MEMBER
Emily Florence Curtiss
GENERAL COUNSEL

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Q1 2025 13F record

Q1 2025 13F filing summary

Q1 2025 Form 13F portfolio summary
Period of report March 31, 2025
Filed May 15, 2025
Form 13F-HR
Reported value $644.6M
Positions 15
Change in reported value -35.9%
New positions 0
Exited positions 2
Position turnover 11.8%
Top-10 concentration 87.3%

13F filings by quarter

Form 13F filings by quarter
Quarter Positions Value
Q2 2026 13F
Filed Aug 14, 2026
12 $1.5B
Q1 2026 13F
Filed May 15, 2026
12 $1.4B
Q4 2025 13F
Filed Feb 17, 2026
13 $1.3B
Q3 2025 13F
Filed Nov 14, 2025
17 $1.1B
Q2 2025 13F
Filed Aug 14, 2025
17 $771.9M
Q1 2025 13F
Filed May 15, 2025
15 $644.6M
Q4 2024 13F
Filed Feb 14, 2025
17 $1.0B
Q3 2024 13F
Filed Nov 14, 2024
15 $1.2B
Q2 2024 13F
Filed Aug 14, 2024
13 $885.1M
Q1 2024 13F
Filed May 15, 2024
15 $917.4M
Q4 2023 13F
Filed Feb 14, 2024
16 $946.5M
Q3 2023 13F
Filed Nov 14, 2023
20 $831.2M
Q2 2023 13F
Filed Aug 14, 2023
17 $709.3M
Q1 2023 13F
Filed May 15, 2023
16 $581.5M
Q4 2022 13F
Filed Feb 14, 2023
16 $630.4M
Q3 2022 13F
Filed Nov 9, 2022
26 $568.9M
Q2 2022 13F
Filed Aug 15, 2022
27 $436.9M
Q1 2022 13F
Filed May 16, 2022
22 $422.9M
Q4 2021 13F
Filed Feb 14, 2022
20 $303.3M
Q3 2021 13F
Filed Nov 15, 2021
20 $275.0M

7 earlier quarters on file — choose one from the quarter menu above.

Top 15 holdings · Q1 2025

Largest Q1 2025 13F positions by reported value
# Holding Reported value % of portfolio
1 AXSM AXSOME THERAPEUTICS INC $95.1M 14.75%
2 APGE APOGEE THERAPEUTICS INC $76.5M 11.87%
3 SYRE SPYRE THERAPEUTICS INC $64.8M 10.06%
4 ELVN ENLIVEN THERAPEUTICS INC $63.0M 9.78%
5 NUVL NUVALENT INC $51.6M 8.0%
6 DNTH DIANTHUS THERAPEUTICS INC $49.0M 7.6%
7 VRDN VIRIDIAN THERAPEUTICS INC $46.4M 7.21%
8 SRRK SCHOLAR ROCK HLDG CORP $44.2M 6.85%
9 COGT COGENT BIOSCIENCES INC $37.3M 5.79%
10 ORKA ORUKA THERAPEUTICS INC $34.6M 5.37%
11 KNSA KINIKSA PHARMACEUTICALS INTL $24.5M 3.8%
12 ATXS ASTRIA THERAPEUTICS INC $19.0M 2.94%
13 ZBIO ZENAS BIOPHARMA INC $15.0M 2.32%
14 IKT INHIBIKASE THERAPEUTICS INC $13.4M 2.08%
15 BCAX BICARA THERAPEUTICS INC $10.2M 1.59%

Values as reported on the Q1 2025 Form 13F. Every position is in the holdings table below.

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