Fairmount Funds Management LLC - Insider Trading & Ownership

Real time insider trading transaction history:

  • Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
  • Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
Time period
Insider Trading Transactions for Fairmount Funds Management LLC
Goto 0, 1, Next
Common stock purchase or sale:
Transaction
Date
Reported
DateTime
CompanySymbolInsider
Relationship
Shares
Traded
Average
Price
Total
Amount
Shares
Owned
Filing
2026-01-22
Sale
2026-01-22
8:09 pm
Cogent Biosciences Inc.COGTFairmount Funds Management LLC
Director
3,500,000$36.4$127,400,0005,570,832
(Indirect)
View
2026-01-22
Sale
2026-01-22
8:07 pm
Apogee Therapeutics Inc.APGEFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Kiselak Tomas
Harwin Peter Evan
Director
1,750,000$76.3$133,525,0007,144,300
(Indirect)
View
2025-12-04
Purchase
2025-12-08
4:30 pm
CRESCENT BIOPHARMA INC.CBIOFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Kiselak Tomas
Harwin Peter Evan
Director
10% Owner
1,360,000$13.41$18,237,6004,516,006
(Indirect)
View
2025-10-23
Purchase
2025-10-27
4:30 pm
Viridian Therapeutics Inc.VRDNFairmount Funds Management LLC
Fairmount Healthcare Fund II GP LLC
Fairmount Healthcare Fund II L.P.
Director
10% Owner
454,545$22$9,999,9903,914,458
(Indirect)
View
2025-10-07
Purchase
2025-10-09
4:15 pm
Zenas BioPharma Inc.ZBIOFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Kiselak Tomas
Harwin Peter Evan
Director
316,219$19$6,008,1612,209,025
(Indirect)
View
2025-07-10
Purchase
2025-07-14
4:30 pm
Cogent Biosciences Inc.COGTFairmount Funds Management LLC
Director
2,777,777$9$24,999,9939,003,418
(Indirect)
View
2024-09-13
Purchase
2024-09-17
9:00 pm
Viridian Therapeutics Inc.VRDNFairmount Funds Management LLC
Fairmount Healthcare Fund II GP LLC
Fairmount Healthcare Fund II L.P.
Director
10% Owner
1,600,000$18.75$30,000,0003,445,813
(Indirect)
View
2024-09-16
Purchase(A)
2024-09-17
8:56 pm
Zenas BioPharma Inc.ZBIOFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Kiselak Tomas
Harwin Peter Evan
Director
300,000$17$5,100,0001,929,806
(Indirect)
View
2024-09-16
Purchase
2024-09-16
8:54 pm
Zenas BioPharma Inc.ZBIOFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Kiselak Tomas
Harwin Peter Evan
Director
300,000$17$5,100,0001,641,891
(Indirect)
View
2024-01-22
Purchase
2024-01-24
6:44 pm
Viridian Therapeutics Inc.VRDNFairmount Funds Management LLC
Fairmount Healthcare Fund GP LLC
Fairmount Healthcare Fund II GP LLC
Fairmount Healthcare Fund L.P.
Fairmount Healthcare Fund II L.P.
See Remarks
10% Owner
476,190$21$9,999,9901,845,813
(Indirect)
View

Stock options: Exercise, Award, Grant, Conversion
Transaction
Date
Reported
DateTime
Exercisable
Expiration
CompanySymnbolInsider
Relationship
Shares
Traded
Conversion
Price
Shares
Owned
Filing

Ownership
2025-11-17
9:48 pm
N/A
N/A
Galecto Inc.GLTOFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Fairmount Healthcare Co-Invest V L.P.
Kiselak Tomas
Harwin Peter Evan
Director
10% Owner
0$026,801,000
(Indirect)
View
2025-10-06
Option Award
2025-10-08
4:15 pm
N/A
N/A
Jade Biosciences Inc.JBIOFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Fairmount Healthcare Co-Invest IV L.P.
Kiselak Tomas
Harwin Peter Evan
Director
10% Owner
855,047$9.13995,408,541
(Indirect)
View
2025-10-06
Option Award
2025-10-08
4:15 pm
N/A
N/A
Jade Biosciences Inc.JBIOFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Fairmount Healthcare Co-Invest IV L.P.
Kiselak Tomas
Harwin Peter Evan
Director
10% Owner
1,333,126$9.145,408,541
(Indirect)
View
2025-09-17
Option Award
2025-09-19
5:33 pm
N/A
N/A
Oruka Therapeutics Inc.ORKAFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Fairmount Healthcare Co-Invest III L.P.
Kiselak Tomas
Harwin Peter Evan
Director
10% Owner
333,340$153,705,262
(Indirect)
View
2025-06-23
Option Award
2025-06-23
6:48 pm
N/A
2035-06-23
GLYCOMIMETICS INCCBIOFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Kiselak Tomas
Harwin Peter Evan
Director
10% Owner
9,023$09,023
(Indirect)
View

Ownership
2025-06-23
6:25 pm
N/A
N/A
GLYCOMIMETICS INCCBIOFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Kiselak Tomas
Harwin Peter Evan
Director
10% Owner
0$05,914,572
(Indirect)
View
2025-06-17
Option Award
2025-06-20
8:06 pm
N/A
2035-06-17
Apogee Therapeutics Inc.APGEFairmount Funds Management LLC
Kiselak Tomas
Harwin Peter Evan
Director
28,922$028,922
(Indirect)
View
2025-06-10
Option Award
2025-06-12
4:34 pm
N/A
2035-06-10
Zenas BioPharma Inc.ZBIOFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Kiselak Tomas
Harwin Peter Evan
Director
18,500$018,500
(Indirect)
View
2025-06-09
Exercise
2025-06-11
5:00 pm
N/A
2025-06-10
Viridian Therapeutics Inc.VRDNFairmount Funds Management LLC
Fairmount Healthcare Fund II GP LLC
Fairmount Healthcare Fund II L.P.
Director
10% Owner
14,100$03,459,913
(Indirect)
View
2025-06-09
Exercise
2025-06-11
5:00 pm
N/A
N/A
Viridian Therapeutics Inc.VRDNFairmount Funds Management LLC
Fairmount Healthcare Fund II GP LLC
Fairmount Healthcare Fund II L.P.
Director
10% Owner
1,600$7.83,459,913
(Indirect)
View
2025-06-10
Exercise
2025-06-11
5:00 pm
N/A
N/A
Viridian Therapeutics Inc.VRDNFairmount Funds Management LLC
Fairmount Healthcare Fund II GP LLC
Fairmount Healthcare Fund II L.P.
Director
10% Owner
12,500$12.313,459,913
(Indirect)
View
2025-06-02
Option Award
2025-06-03
4:30 pm
N/A
2035-06-01
Oruka Therapeutics Inc.ORKAFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Fairmount Healthcare Co-Invest III L.P.
Harwin Peter Evan
Kiselak Tomas
Director
10% Owner
17,500$017,500
(Indirect)
View
2025-05-29
Option Award
2025-06-02
4:39 pm
N/A
2035-05-29
Spyre Therapeutics Inc.SYREFairmount Funds Management LLC
Harwin Peter Evan
Kiselak Tomas
Fairmount Healthcare Fund II L.P.
Director
50,000$050,000
(Indirect)
View
2025-04-29
Option Award
2025-05-01
6:16 pm
N/A
2035-04-29
Jade Biosciences Inc.JBIOFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Kiselak Tomas
Harwin Peter Evan
Director
10% Owner
23,017$023,017
(Direct)
View

Ownership
2025-05-01
5:58 pm
N/A
N/A
Jade Biosciences Inc.JBIOFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Kiselak Tomas
Harwin Peter Evan
Director
10% Owner
0$020,777,527
(Indirect)
View
2024-11-19
Exercise
2024-11-21
6:30 pm
N/A
N/A
Oruka Therapeutics Inc.ORKAFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Kiselak Tomas
Harwin Peter Evan
Director
10% Owner
160,160$03,371,922
(Indirect)
View
2024-09-27
Other
2024-10-01
8:00 pm
N/A
N/A
Dianthus Therapeutics Inc.DNTHFairmount Funds Management LLC
Kiselak Tomas
Director
62,146$02,762,837
(Indirect)
View
2024-09-12
Option Award(A)
2024-09-17
8:56 pm
N/A
2034-09-11
Zenas BioPharma Inc.ZBIOFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Kiselak Tomas
Harwin Peter Evan
Director
37,000$01,929,806
(Indirect)
View
2024-09-16
Conversion(A)
2024-09-17
8:56 pm
N/A
N/A
Zenas BioPharma Inc.ZBIOFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Kiselak Tomas
Harwin Peter Evan
Director
12,635,428$01,929,806
(Indirect)
View
2024-09-12
Option Award
2024-09-16
8:54 pm
N/A
2034-09-11
Zenas BioPharma Inc.ZBIOFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Kiselak Tomas
Harwin Peter Evan
Director
37,000$01,641,891
(Indirect)
View
2024-09-16
Conversion
2024-09-16
8:54 pm
N/A
N/A
Zenas BioPharma Inc.ZBIOFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Kiselak Tomas
Harwin Peter Evan
Director
12,635,428$01,641,891
(Indirect)
View
2024-09-11
Option Award
2024-09-13
4:55 pm
N/A
N/A
Oruka Therapeutics Inc.ORKAFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Kiselak Tomas
Harwin Peter Evan
Director
10% Owner
275,000$233,212,082
(Indirect)
View
2024-09-11
Option Award
2024-09-13
4:55 pm
N/A
N/A
Oruka Therapeutics Inc.ORKAFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Kiselak Tomas
Harwin Peter Evan
Director
10% Owner
160$23,0003,212,082
(Indirect)
View

Ownership
2024-09-12
9:41 pm
N/A
N/A
Zenas BioPharma Inc.ZBIOFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Kiselak Tomas
Harwin Peter Evan
Director
10% Owner
0$01,592,806
(Indirect)
View

Ownership
2024-09-06
5:07 pm
N/A
N/A
Oruka Therapeutics Inc.ORKAFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Fairmount Healthcare Co-Invest III L.P.
Kiselak Tomas
Harwin Peter Evan
Director
10% Owner
0$019,662,752
(Indirect)
View
2024-06-10
Exercise
2024-06-12
9:01 pm
N/A
N/A
Cogent Biosciences Inc.COGTFairmount Funds Management LLC
Director
1,501,500$06,225,641
(Indirect)
View
2024-06-05
Option Award
2024-06-07
8:00 pm
N/A
2034-06-05
Apogee Therapeutics Inc.APGEFairmount Funds Management LLC
Kiselak Tomas
Harwin Peter Evan
Director
20,740$020,740
(Direct)
View
2024-05-23
Option Award
2024-05-28
7:57 pm
N/A
2034-05-22
Dianthus Therapeutics Inc.DNTHFairmount Funds Management LLC
Kiselak Tomas
Director
11,000$011,000
(Indirect)
View
2024-05-14
Option Award
2024-05-16
4:10 pm
N/A
2034-05-14
Spyre Therapeutics Inc.SYREFairmount Funds Management LLC
Kiselak Tomas
Harwin Peter Evan
Director
22,646$022,646
(Indirect)
View
2024-04-25
Exercise
2024-04-25
4:55 pm
N/A
N/A
Spyre Therapeutics Inc.SYREFairmount Funds Management LLC
Fairmount Healthcare Fund II L.P.
Kiselak Tomas
Harwin Peter Evan
Director
3,730,672$05,176,222
(Indirect)
View
2024-03-28
Other
2024-04-01
6:32 pm
N/A
N/A
Viridian Therapeutics Inc.VRDNFairmount Funds Management LLC
Fairmount Healthcare Fund GP LLC
Fairmount Healthcare Fund II GP LLC
Fairmount Healthcare Fund L.P.
Fairmount Healthcare Fund II L.P.
Director
10% Owner
49,857$01,990,722
(Indirect)
View
2024-04-01
Other
2024-04-01
6:21 pm
N/A
N/A
Dianthus Therapeutics Inc.DNTHFairmount Funds Management LLC
Kiselak Tomas
Director
58,857$02,880,551
(Indirect)
View
2024-03-28
Other
2024-04-01
6:19 pm
N/A
N/A
Cogent Biosciences Inc.COGTFairmount Funds Management LLC
Director
310,679$05,366,757
(Indirect)
View
2024-03-28
Other
2024-04-01
5:44 pm
N/A
N/A
Apogee Therapeutics Inc.APGEFairmount Funds Management LLC
Fairmount Healthcare Fund L.P.
Fairmount Healthcare Fund II L.P.
Kiselak Tomas
Harwin Peter Evan
Director
498,765$09,006,126
(Indirect)
View
2024-02-16
Option Award
2024-02-16
6:43 pm
N/A
N/A
Cogent Biosciences Inc.COGTFairmount Funds Management LLC
10% Owner
1,500$7,5004,727,141
(Indirect)
View
2024-02-16
Option Award
2024-02-16
6:43 pm
N/A
N/A
Cogent Biosciences Inc.COGTFairmount Funds Management LLC
10% Owner
1,166,666$7.54,727,141
(Indirect)
View
2024-01-29
Other
2024-01-31
4:31 pm
N/A
N/A
Apogee Therapeutics Inc.APGEFairmount Funds Management LLC
Fairmount Healthcare Fund L.P.
Fairmount Healthcare Fund II L.P.
Fairmount Healthcare Co-Invest II L.P.
Kiselak Tomas
Harwin Peter Evan
Director
943,695$01,046,027
(Indirect)
View
2024-01-22
Option Award
2024-01-24
7:02 pm
N/A
N/A
Dianthus Therapeutics Inc.DNTHFairmount Funds Management LLC
Kiselak Tomas
Harwin Peter Evan
Director
10% Owner
832,333$123,595,170
(Indirect)
View
2024-01-22
Option Award
2024-01-24
7:02 pm
N/A
N/A
Dianthus Therapeutics Inc.DNTHFairmount Funds Management LLC
Kiselak Tomas
Harwin Peter Evan
Director
10% Owner
834,334$123,595,170
(Indirect)
View
2023-12-29
Other
2023-12-29
5:00 pm
N/A
N/A
Spyre Therapeutics Inc.SYREFairmount Funds Management LLC
Fairmount Healthcare Fund L.P.
Fairmount Healthcare Fund II L.P.
Fairmount Healthcare Co-Invest L.P.
Kiselak Tomas
Harwin Peter Evan
Director
10% Owner
3,841,518$05,485,719
(Indirect)
View
(A) Indicate amendment filing.
Goto 0, 1, Next