Fairmount Funds Management LLC

Insider Reports History

Location
West Conshohocken, PA
Signature
/s/ Tomas Kiselak for Fairmount Funds Management LLC
All insider transactions
Transactions in reports broken out by “transaction date” reported in original SEC filing, see here for transactions aggregated across transaction date

Holdings reported by Fairmount Funds Management LLC:

Company Role Class Num Shares Value Price $ Report Date Ownership
Cogent Biosciences, Inc. Director Series A Convertible Preferred Stock 67,414 $598,636,320 $8880.00 22 Jan 2026 Fairmount Healthcare Fund II LP
Cogent Biosciences, Inc. Director Common Stock 5,503,418 $200,324,415 $36.40 22 Jan 2026 Fairmount Healthcare Fund II LP
Viridian Therapeutics, Inc.\DE Director, 10%+ Owner Common Stock 3,914,458 $86,118,076 $22.00 23 Oct 2025 Fairmount Healthcare Fund II LP
Zenas BioPharma, Inc. Director Common Stock 2,209,025 $41,971,475 $19.00 07 Oct 2025 By Fairmount Healthcare Fund II L.P.
Oruka Therapeutics, Inc. Director, 10%+ Owner Common Stock 2,573,308 $37,338,699 $14.51 17 Sep 2025 By Fairmount Healthcare Co-Invest III L.P.
CRESCENT BIOPHARMA, INC. Director, 10%+ Owner Ordinary Shares 2,747,866 $36,848,883 $13.41 04 Dec 2025 By Fairmount Healthcare Fund II L.P.
Dianthus Therapeutics, Inc. /DE/ Director Common Stock 2,700,691 $32,408,292 $12.00 27 Sep 2024 By Fairmount Healthcare Fund II L.P.
CRESCENT BIOPHARMA, INC. Director, 10%+ Owner Pre-Funded Warrant (Right to Buy) 1,768,140 $23,708,989 $13.41 04 Dec 2025 By Fairmount Healthcare Fund II L.P.
Jade Biosciences, Inc. Director, 10%+ Owner Common Stock 2,655,817 $22,924,746 $8.63 06 Oct 2025 By Fairmount Healthcare Co-Invest IV L.P.
Apogee Therapeutics, Inc. Director Common Stock 298,647 $22,786,766 $76.30 22 Jan 2026 By Fairmount Healthcare Fund II LP
Jade Biosciences, Inc. Director, 10%+ Owner Common Stock 1,897,677 $17,344,767 $9.14 06 Oct 2025 By Fairmount Healthcare Fund II L.P.
Oruka Therapeutics, Inc. Director, 10%+ Owner Common Stock 1,131,954 $16,979,310 $15.00 17 Sep 2025 By Fairmount Healthcare Fund II L.P.
Dianthus Therapeutics, Inc. /DE/ Director Pre-Funded Warrants (Right to Buy) 832,333 $9,987,164 $12.00 22 Jan 2024 Indirect
Jade Biosciences, Inc. Director, 10%+ Owner Pre-Funded Warrant (Right to Buy) 855,047 $7,815,044 $9.14 06 Oct 2025 By Fairmount Healthcare Fund II L.P.
Apogee Therapeutics, Inc. Director Common Stock 51,166 $3,862,019 $75.48 22 Jan 2026 By Peter Harwin
Apogee Therapeutics, Inc. Director Common Stock 51,166 $3,862,019 $75.48 22 Jan 2026 By Tomas Kiselak
Dianthus Therapeutics, Inc. /DE/ Director Common Stock 0 $0 $12.00 27 Sep 2024 By Fairmount SPV III, LLC
Oruka Therapeutics, Inc. Director, 10%+ Owner Series A Non-Voting Convertible Preferred Stock 0 $0 $23000.00 19 Nov 2024 By Fairmount Healthcare Fund II L.P.
Spyre Therapeutics, Inc. Director Stock Option (Right to Buy) 25,000 29 May 2025 By Peter Harwin
Spyre Therapeutics, Inc. Director Stock Option (Right to Buy) 25,000 29 May 2025 By Tomas Kiselak
Aerovate Therapeutics, Inc. Director, 10%+ Owner Stock Option (Right to Buy) 23,017 29 Apr 2025 Direct
Zenas BioPharma, Inc. Director Stock Option (Right to Buy) 18,500 10 Jun 2025 By Tomas Kiselak
Oruka Therapeutics, Inc. Director, 10%+ Owner Stock Option (Right to Buy) 17,500 02 Jun 2025 By: Peter Harwin
Apogee Therapeutics, Inc. Director Stock Option (Right to Buy) 14,461 17 Jun 2025 By: Peter Harwin
Apogee Therapeutics, Inc. Director Stock Option (Right to Buy) 14,461 17 Jun 2025 By: Tomas Kiselak
Dianthus Therapeutics, Inc. /DE/ Director Stock Option (Right to Buy) 11,000 23 May 2024 Indirect
CRESCENT BIOPHARMA, INC. Director, 10%+ Owner Stock Option (Right to Buy) 9,023 23 Jun 2025 By: Peter Harwin
Viridian Therapeutics, Inc.\DE Director, 10%+ Owner Stock Option (Right to Buy) 0 10 Jun 2025 By: Peter Harwin

Insider Reports Filed by Fairmount Funds Management LLC

Symbol Company Period Transactions Value $ Form Type Role Filing Time
COGT Cogent Biosciences, Inc. 22 Jan 2026 1 -$127,400,000 4 Director 22 Jan 2026, 20:09
APGE Apogee Therapeutics, Inc. 22 Jan 2026 1 -$133,525,000 4 Director 22 Jan 2026, 20:07
GLYC CRESCENT BIOPHARMA, INC. 04 Dec 2025 2 +$19,999,999 4 Director, 10%+ Owner 08 Dec 2025, 16:30
GLTO Galecto, Inc. 10 Nov 2025 0 $0 3 Director, 10%+ Owner 17 Nov 2025, 21:48
VRDN Viridian Therapeutics, Inc.\DE 23 Oct 2025 1 +$9,999,990 4 Director, 10%+ Owner 27 Oct 2025, 16:30
ZBIO Zenas BioPharma, Inc. 07 Oct 2025 1 +$6,008,161 4 Director 09 Oct 2025, 16:15
JBIO Jade Biosciences, Inc. 06 Oct 2025 2 +$19,999,816 4 Director, 10%+ Owner 08 Oct 2025, 16:15
ORKA Oruka Therapeutics, Inc. 17 Sep 2025 1 +$5,000,100 4 Director, 10%+ Owner 19 Sep 2025, 17:33
COGT Cogent Biosciences, Inc. 10 Jul 2025 1 +$24,999,993 4 Director 14 Jul 2025, 16:30
GLYC GLYCOMIMETICS INC 23 Jun 2025 1 $0 4 Director, 10%+ Owner 23 Jun 2025, 18:48
APGE Apogee Therapeutics, Inc. 17 Jun 2025 2 $0 4 Director 20 Jun 2025, 20:06
GLYC GLYCOMIMETICS INC 13 Jun 2025 0 $0 3 Director, 10%+ Owner 23 Jun 2025, 18:25
ZBIO Zenas BioPharma, Inc. 10 Jun 2025 1 $0 4 Director 12 Jun 2025, 16:34
VRDN Viridian Therapeutics, Inc.\DE 09 Jun 2025 4 +$166,355 4 Director, 10%+ Owner 11 Jun 2025, 17:00
ORKA Oruka Therapeutics, Inc. 02 Jun 2025 1 $0 4 Director, 10%+ Owner 03 Jun 2025, 16:30
SYRE Spyre Therapeutics, Inc. 29 May 2025 2 $0 4 Director 02 Jun 2025, 16:39
JBIO Jade Biosciences, Inc. 29 Apr 2025 1 $0 4 Director, 10%+ Owner 01 May 2025, 18:16
JBIO Jade Biosciences, Inc. 28 Apr 2025 0 $0 3 Director, 10%+ Owner 01 May 2025, 17:58
ORKA Oruka Therapeutics, Inc. 19 Nov 2024 2 $0 4 Director, 10%+ Owner 21 Nov 2024, 18:30
DNTH Dianthus Therapeutics, Inc. /DE/ 27 Sep 2024 1 $0 4 Director 01 Oct 2024, 20:00
VRDN Viridian Therapeutics, Inc.\DE 13 Sep 2024 1 +$30,000,000 4 Director, 10%+ Owner 17 Sep 2024, 21:00
ZBIO Zenas BioPharma, Inc. 12 Sep 2024 10 +$5,100,000 4/A Director 17 Sep 2024, 20:56
ZBIO Zenas BioPharma, Inc. 12 Sep 2024 0 $0 3 Director, 10%+ Owner 12 Sep 2024, 21:41
ORKA Oruka Therapeutics, Inc. 11 Sep 2024 2 +$10,005,000 4 Director, 10%+ Owner 13 Sep 2024, 16:55
ORKA Oruka Therapeutics, Inc. 29 Aug 2024 0 $0 3 Director, 10%+ Owner 06 Sep 2024, 17:07
COGT Cogent Biosciences, Inc. 10 Jun 2024 2 $0 4 Director 12 Jun 2024, 21:01
APGE Apogee Therapeutics, Inc. 05 Jun 2024 2 $0 4 Director 07 Jun 2024, 20:00
DNTH Dianthus Therapeutics, Inc. /DE/ 23 May 2024 1 $0 4 Director 28 May 2024, 19:57
SYRE Spyre Therapeutics, Inc. 14 May 2024 2 $0 4 Director 16 May 2024, 16:10
SYRE Spyre Therapeutics, Inc. 25 Apr 2024 2 $0 4 Director 25 Apr 2024, 16:55
DNTH Dianthus Therapeutics, Inc. /DE/ 01 Apr 2024 2 $0 4 Director 01 Apr 2024, 18:21
VRDN Viridian Therapeutics, Inc.\DE 28 Mar 2024 4 $0 4 Director, 10%+ Owner 01 Apr 2024, 18:32
COGT Cogent Biosciences, Inc. 28 Mar 2024 4 $0 4 Director 01 Apr 2024, 18:19
APGE Apogee Therapeutics, Inc. 28 Mar 2024 4 $0 4 Director 01 Apr 2024, 17:44
COGT Cogent Biosciences, Inc. 16 Feb 2024 2 +$19,999,995 4 10%+ Owner 16 Feb 2024, 18:43
APGE Apogee Therapeutics, Inc. 29 Jan 2024 3 $0 4 Director 31 Jan 2024, 16:31
DNTH Dianthus Therapeutics, Inc. /DE/ 22 Jan 2024 2 +$19,999,172 4 Director, 10%+ Owner 24 Jan 2024, 19:02
VRDN Viridian Therapeutics, Inc.\DE 22 Jan 2024 1 +$9,999,990 4 Director, Other*, 10%+ Owner 24 Jan 2024, 18:44
SYRE Spyre Therapeutics, Inc. 29 Dec 2023 3 $0 4 Director, 10%+ Owner 29 Dec 2023, 17:00
SYRE Spyre Therapeutics, Inc. 07 Dec 2023 1 +$10,000,200 4 Director, 10%+ Owner 11 Dec 2023, 17:41
SYRE Spyre Therapeutics, Inc. 24 Nov 2023 2 $0 4 Director, 10%+ Owner 28 Nov 2023, 16:05
VRDN Viridian Therapeutics, Inc.\DE 30 Oct 2023 1 +$40,000,129 4 Director, Other*, 10%+ Owner 01 Nov 2023, 21:05
DNTH Dianthus Therapeutics, Inc. /DE/ 29 Sep 2023 1 +$336,252 4 Director, 10%+ Owner 03 Oct 2023, 16:00
DNTH Dianthus Therapeutics, Inc. /DE/ 26 Sep 2023 1 +$394,500 4 Director, 10%+ Owner 28 Sep 2023, 18:09
DNTH Dianthus Therapeutics, Inc. /DE/ 19 Sep 2023 1 +$396,000 4 Director, 10%+ Owner 21 Sep 2023, 17:23
DNTH Dianthus Therapeutics, Inc. /DE/ 11 Sep 2023 3 +$271,680 4 Director, 10%+ Owner 13 Sep 2023, 22:17
DNTH Dianthus Therapeutics, Inc. /DE/ 11 Sep 2023 0 $0 3 Director, 10%+ Owner 13 Sep 2023, 21:55
APGE Apogee Therapeutics, Inc. 13 Jul 2023 5 +$49,999,992 4 Director 17 Jul 2023, 20:00
APGE Apogee Therapeutics, Inc. 13 Jul 2023 0 $0 3 Director 13 Jul 2023, 18:39
SYRE Aeglea BioTherapeutics, Inc. 22 Jun 2023 0 $0 3 Director, 10%+ Owner 30 Jun 2023, 17:32
COGT Cogent Biosciences, Inc. 09 Jun 2023 1 +$9,600,000 4 Other*, 10%+ Owner 13 Jun 2023, 16:07
VRDN Viridian Therapeutics, Inc.\DE 17 Aug 2022 1 +$9,999,978 4 Director, Other*, 10%+ Owner 19 Aug 2022, 16:32
COGT Cogent Biosciences, Inc. 16 Jun 2022 1 +$9,900,000 4 Other*, 10%+ Owner 21 Jun 2022, 10:02
VRDN Viridian Therapeutics, Inc.\DE 21 Sep 2021 1 +$9,999,000 4 Director, 10%+ Owner 23 Sep 2021, 09:30