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SC Filed 2024-04-01 Event — SEC 0001193125-24-083707 →

Fairmount Funds Management LLC Dianthus Therapeutics, Inc. /DE/ DNTH

Stake: Shares:

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)
60 transactions
8 buys · 29 sales · 23 awards/exercises
Issuer Cluster
2 13D/G filings on this issuer
1 other filing besides this one
Filer Track Record
18 filings by this filer
17 other filings in the data moat
Short Interest · settle 2026-07-15
DTC 8.86
9,220,028 shares short · -3.3% vs prior

Form 4 Insider Transactions · last 365d

DateInsiderRoleTypeSharesPriceValue
2026-05-08 Soteropoulos Paula director Option exercise 599 $8.44 $5K
2026-05-08 Soteropoulos Paula director Sale 599 $85.47 $51K
2026-04-09 Savitz Ryan officer Option exercise 8,224 $17.88 $147K
2026-04-09 Savitz Ryan officer Sale 8,224 $89.84 $739K
2026-03-31 Savitz Ryan officer Option exercise 74,367 $8.44 $628K
2026-03-31 Soteropoulos Paula director Option exercise 599 $8.44 $5K
2026-03-31 Soteropoulos Paula director Sale 599 $80.11 $48K
2026-03-31 Savitz Ryan officer Option exercise 40,000 $17.88 $715K
2026-03-31 Savitz Ryan officer Sale 1,390 $78.33 $109K
2026-03-31 Savitz Ryan officer Sale 21,825 $78.86 $1.72M
2026-03-31 Savitz Ryan officer Sale 1,485 $80.25 $119K
2026-03-31 Savitz Ryan officer Sale 800 $81.36 $65K
2026-03-31 Savitz Ryan officer Sale 2,366 $82.84 $196K
2026-03-31 Savitz Ryan officer Sale 59,800 $83.90 $5.02M
2026-03-31 Savitz Ryan officer Sale 19,469 $84.57 $1.65M
2026-03-31 Savitz Ryan officer Sale 7,232 $85.54 $619K
2026-03-24 Soteropoulos Paula director Option exercise 27,594 $8.44 $233K
2026-03-24 Soteropoulos Paula director Sale 27,594 $78.05 $2.15M
2026-03-16 Garcia Marino director, officer Option exercise 59,700 $6.70 $400K
2026-03-16 Garcia Marino director, officer Option exercise 5,592 $17.88 $100K
2026-03-12 Garcia Marino director, officer Option exercise 122,918 $6.70 $824K
2026-03-12 CARR EDWARD officer Option exercise 16,182 $17.88 $289K
2026-03-12 Randhawa Simrat officer Option exercise 7,998 $8.44 $68K
2026-03-12 CARR EDWARD officer Option exercise 17,500 $22.07 $386K
2026-03-12 CARR EDWARD officer Option exercise 10,000 $21.77 $218K
Showing 25 of 60

Other 13D/G Filings on Dianthus Therapeutics, Inc. /DE/

FiledFormFilerStakeShares
2025-09-15 SCHEDULE Fairmount Funds Management LLC 9.90% 4,052,052 view →

Other Filings by Fairmount Funds Management LLC

FiledFormIssuerStakeShares
2026-07-20 SCHEDULE 13D/A Crescent Biopharma, Inc. 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.\DE VRDN 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 Viridian Therapeutics, Inc.\DE VRDN 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.\DE VRDN view →

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