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Fairmount Funds Management LLC

Track

Insider profile

Performance

Overall performance
3.5
Performance over holding periods
4.2
30 days 90 days 120 days
Average return 5% 8.2% 15.1%
Success rate 42% 68% 82%
Transactions
20 90% Buy
34 71% Buy
47 69% Buy
Ranking by holding-period performance
Performance for realised trades
4.4
Average return 312%
Success rate 73%
Average holding period 220
Transactions 28
Ranking by realised performance
Fairmount Funds Management LLC's trades of Viridian Therapeutics Inc's stock


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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date Company B/S Transaction type Nb. shares
Price
Value 		Number of shares Price Value Details
2026-05-13 2026-05-11
B Purchase
86,034 +11.6%
259.02
US$3,859,216 		86,034 +11.6% 259.02 US$3,859,216
2026-04-01 2026-03-31
B Purchase
6,714 +2.5%
359.52
US$189,403 		6,714 +2.5% 359.52 US$189,403
2026-03-31 2026-03-31
S Sale
61,192 +12.2%
34.80
US$1,042,476 		61,192 +12.2% 34.80 US$1,042,476
2026-03-31 2026-03-31
PrS Proposed sale
7,000,000
34.66
US$242,620,000 		7,000,000 34.66 US$242,620,000
2026-01-22 2026-01-22
PrS Proposed sale
3,500,000
36.40
US$127,400,000 		3,500,000 36.40 US$127,400,000
2026-01-22 2026-01-22
PrS Proposed sale
1,750,000
76.30
US$133,525,000 		1,750,000 76.30 US$133,525,000
2026-01-22 2026-01-22
S Sale
1,750,000 -85.4%
76.30
US$133,525,000 		1,750,000 -85.4% 76.30 US$133,525,000
2026-01-22 2026-01-22
S Sale
3,500,000 -38.9%
36.40
US$127,400,000 		3,500,000 -38.9% 36.40 US$127,400,000
2025-12-08 2025-12-04
B Purchase
1,360,000 +98.0%
13.41
US$18,237,600 		1,360,000 +98.0% 13.41 US$18,237,600
2025-10-27 2025-10-23
B Purchase
454,545 +13.1%
22.00
US$9,999,990 		454,545 +13.1% 22.00 US$9,999,990
2025-10-09 2025-10-07
B Purchase
316,219 +16.7%
19.00
US$6,008,161 		316,219 +16.7% 19.00 US$6,008,161
2025-07-14 2025-07-10
B Purchase
2,777,777 +44.6%
9.00
US$24,999,993 		2,777,777 +44.6% 9.00 US$24,999,993
2024-09-16 2024-09-16
B Purchase
300,000 +23.0%
17.00
US$5,100,000 		300,000 +23.0% 17.00 US$5,100,000
2024-09-17 2024-09-13
B Purchase
1,600,000 +86.7%
18.75
US$30,000,000 		1,600,000 +86.7% 18.75 US$30,000,000
2024-01-24 2024-01-22
B Purchase
476,190 +34.9%
21.00
US$9,999,990 		476,190 +34.9% 21.00 US$9,999,990
2023-10-03 2023-09-29
B Purchase
24,670 +1.3%
13.63
US$336,252 		24,670 +1.3% 13.63 US$336,252
2023-09-28 2023-09-26
B Purchase
30,000 +1.6%
13.15
US$394,500 		30,000 +1.6% 13.15 US$394,500
2023-09-21 2023-09-19
B Purchase
30,000 +1.6%
13.20
US$396,000 		30,000 +1.6% 13.20 US$396,000
2023-09-13 2023-09-13
B Purchase
9,367 +0.5%
11.76
US$110,156 		9,367 +0.5% 11.76 US$110,156
2023-09-13 2023-09-12
B Purchase
14,887 +0.8%
10.85
US$161,524 		14,887 +0.8% 10.85 US$161,524
2023-07-17 2023-07-13
B Purchase
892,529 +inf%
17.00
US$15,172,993 		892,529 +inf% 17.00 US$15,172,993
2023-07-17 2023-07-13
B Purchase
1,992,734 +inf%
17.00
US$33,876,478 		1,992,734 +inf% 17.00 US$33,876,478
2023-07-17 2023-07-13
B Purchase
55,913 +inf%
17.00
US$950,521 		55,913 +inf% 17.00 US$950,521
2023-06-13 2023-06-09
B Purchase
800,000 +32.4%
12.00
US$9,600,000 		800,000 +32.4% 12.00 US$9,600,000
2022-08-19 2022-08-17
B Purchase
425,531 +45.4%
23.50
US$9,999,978 		425,531 +45.4% 23.50 US$9,999,978
2022-06-21 2022-06-16
B Purchase
1,200,000 +94.3%
8.25
US$9,900,000 		1,200,000 +94.3% 8.25 US$9,900,000