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FILER PROFILE · CIK 0001802528

Fairmount Funds Management LLC

18 filings 8 distinct issuers Active 2021-09-232026-07-20

Track Record

Total filings
18
6 SCHEDULE 13D/A · 5 SCHEDULE · 7 SC
Distinct issuers
8
44% issuer diversity
Median stake
13.66%
9,874,294 avg shares
AI briefs cached
0/18
intent-classified filings

Backtested Performance · post-filing returns (split + dividend adjusted)

Median 30d
0.0%
across 9 filings · win rate 33%
Median 60d
-2.0%
across 6 filings · win rate 17%
Median 90d
+13.5%
across 5 filings · win rate 60%
Median 1y
0.0%
across 1 filings · win rate 0%

Anchor: closest trading day on/after filing's date_of_event. Source: Yahoo Finance daily adj_close. Past performance is not indicative of future results.

Filings · 18 total

FiledFormIssuerStakeSharesIntent
2026-07-20 SCHEDULE 13D/A Crescent Biopharma, Inc.CBIO 6,593,385 view →
2026-07-01 SCHEDULE 13D/A ORUKA THERAPEUTICS, INC.ORKA 19.50% 14,553,895 view →
2026-06-23 SCHEDULE 13D/A SPYRE THERAPEUTICS, INC.SYRE 8,835,440 view →
2026-06-23 SCHEDULE 13D/A Apogee Therapeutics, Inc.APGE 9.99% 6,713,519 view →
2026-06-09 SCHEDULE 13D/A Jade Biosciences, Inc.JBIO 19.99% 14,069,494 view →
2026-05-13 SCHEDULE 13D/A Viridian Therapeutics, Inc.\DEVRDN 17,201,800 view →
2026-01-22 SCHEDULE Apogee Therapeutics, Inc.APGE 9.99% 6,047,027 view →
2026-01-22 SCHEDULE Cogent Biosciences, Inc.COGT 9.90% 16,261,918 view →
2025-10-14 SCHEDULE Apogee Therapeutics, Inc.APGE 9.99% 5,776,881 view →
2025-09-15 SCHEDULE Dianthus Therapeutics, Inc. /DE/DNTH 9.90% 4,052,052 view →
2025-03-10 SCHEDULE Oruka Therapeutics, Inc.ORKA 19.99% 8,511,824 view →
2024-04-01 SC Dianthus Therapeutics, Inc. /DE/DNTH view →
2024-04-01 SC Viridian Therapeutics, Inc.\DEVRDN view →
2024-04-01 SC Apogee Therapeutics, Inc.APGE view →
2024-04-01 SC Cogent Biosciences, Inc.COGT view →
2023-12-11 SC Spyre Therapeutics, Inc.SYRE view →
2023-06-13 SC Cogent Biosciences, Inc.COGT view →
2021-09-23 SC Viridian Therapeutics, Inc.\DEVRDN view →

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