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FILER PROFILE · CIK 0001802528

Fairmount Funds Management LLC

22 filings 10 distinct issuers Active 2021-09-23 → 2026-10-15

Track Record

Total filings
22
2 SCHEDULE 13D · 8 SCHEDULE 13D/A · 5 SCHEDULE · 7 SC
Distinct issuers
10
45% issuer diversity
Median stake
14.47%
9,138,140 avg shares
AI briefs cached
0/22
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 · 22 total

FiledFormIssuerStakeSharesIntent
2026-10-15 SCHEDULE 13D Alaunos Therapeutics, Inc.TCRT 19.99% 858,789 view →
2026-10-09 SCHEDULE 13D/A SPYRE THERAPEUTICS, INC.SYRE 9.99% 9,354,200 view →
2026-09-11 SCHEDULE 13D Korsana Biosciences, Inc.KRSA 19.99% 9,103,729 view →
2026-09-03 SCHEDULE 13D/A Apogee Therapeutics, Inc. — 0 view →
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 Cogent Biosciences, Inc.COGT 9.90% 16,261,918 view →
2026-01-22 SCHEDULE Apogee Therapeutics, Inc.APGE 9.99% 6,047,027 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 Cogent Biosciences, Inc.COGT — — 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 →
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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