MLYS
MINERALYS (MLYS)
NASDAQ
$26.19+$0.58 (+2.26%)
Price as of Jun 23, 2026 6:15 PM EDT
  • $2.2B
    Market Cap
  • 81.12%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
CATALYS PACIFIC, LLC
11.92%
7.9M
0 (0.00%)
Mar 31, 2026
RA CAPITAL MANAGEMENT, L.P.
11.60%
7.7M
+369,000 (+4.80%)
Mar 31, 2026
SAMSARA BIOCAPITAL, LLC
8.86%
5.9M
0 (0.00%)
Mar 31, 2026
FMR LLC
7.33%
4.9M
-196,405 (-4.04%)
Mar 31, 2026
BLACKROCK, INC.
6.76%
4.5M
+153,904 (+3.43%)
Mar 31, 2026
WELLINGTON MANAGEMENT GROUP LLP
5.07%
3.4M
+2.6M (+76.65%)
Mar 31, 2026
VANGUARD GROUP INC
5.06%
3.4M
+333,881 (+9.96%)
Dec 31, 2025

Current Ownership Distribution

  • Institutions437.6M (79.84%)
  • Mutual Funds87.0M (15.88%)
  • Insiders23.5M (4.28%)
  • Other0 (0.00%)

Insider Transactions

  • 4.28% (23.5M)
    Current InsiderOwnership (%, shares)
  • 2
    Number of InsiderBuying (last 12 months)
  • $377.6M
    Amount of InsiderBuying (last 12 months)
  • 5
    Number of InsiderSelling (last 12 months)
  • $453.5M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Karydas Daphne
Exempt
Jun 17, 2026
$0.00
3,000
$0.00
38,000
Rodman David Malcom
Chief Medical Officer
Exempt
Jun 17, 2026
$0.00
4,167
$0.00
83,334
Karydas Daphne
Exempt
Jun 17, 2026
$36,060.00
3,000
$12.02
9,200
Rodman David Malcom
Chief Medical Officer
Exempt
Jun 17, 2026
$0.00
417
$0.00
3,750
Karydas Daphne
Sell
Jun 17, 2026
$75,000.00
3,000
$25.00
6,200
Rodman David Malcom
Chief Medical Officer
Exempt
Jun 17, 2026
$59,379.75
4,167
$14.25
61,262
Rodman David Malcom
Chief Medical Officer
Exempt
Jun 17, 2026
$6,438.48
417
$15.44
61,679
Rodman David Malcom
Chief Medical Officer
Sell
Jun 17, 2026
$114,600.00
4,584
$25.00
57,095
Rodman David Malcom
Chief Medical Officer
Exempt
Jun 15, 2026
$0.00
3,542
$0.00
113,334
Rodman David Malcom
Chief Medical Officer
Exempt
Jun 15, 2026
$36,128.40
3,542
$10.20
66,985
Rodman David Malcom
Chief Medical Officer
Sell
Jun 15, 2026
$235,486.83
9,890
$23.81
57,095
Congleton Jon
Chief Executive Officer
Sell
Mar 31, 2026
$493,793.62
19,364
$25.50
760,687
Congleton Jon
Chief Executive Officer
Sell
Mar 31, 2026
$1.5M
55,183
$26.54
705,504
Congleton Jon
Chief Executive Officer
Sell
Mar 31, 2026
$12,254.15
453
$27.05
705,051
RA CAPITAL MANAGEMENT, LLC
Buy
Mar 30, 2026
$1.4M
58,300
$24.16
5.8M
RA CAPITAL MANAGEMENT, LLC
Buy
Mar 27, 2026
$7.4M
310,700
$23.67
5.8M
Rodman David Malcom
Chief Medical Officer
Exempt
Mar 17, 2026
$0.00
417
$0.00
5,000
Rodman David Malcom
Chief Medical Officer
Exempt
Mar 17, 2026
$6,438.48
417
$15.44
76,557
Rodman David Malcom
Chief Medical Officer
Sell
Mar 17, 2026
$10,696.05
417
$25.65
76,140
Rodman David Malcom
Chief Medical Officer
Exempt
Mar 09, 2026
$0.00
2,171
$0.00
23,876
Rodman David Malcom
Chief Medical Officer
Exempt
Mar 09, 2026
$34,736.00
2,171
$16.00
84,660
Rodman David Malcom
Chief Medical Officer
Sell
Mar 09, 2026
$58,269.64
2,171
$26.84
82,489
RA CAPITAL MANAGEMENT, LLC
Award
Feb 19, 2026
$0.00
8,300
$0.00
8,300
DiRocco Derek
Award
Feb 19, 2026
$0.00
8,300
$0.00
8,300
Levy Adam Scott
CFO and Secretary
Award
Feb 19, 2026
$0.00
53,300
$0.00
53,300
AKKARAJU SRINIVAS
Award
Feb 19, 2026
$0.00
8,300
$0.00
8,300
Slingsby Brian Taylor
Award
Feb 19, 2026
$0.00
8,300
$0.00
8,300
SBLENDORIO GLENN
Award
Feb 19, 2026
$0.00
8,300
$0.00
8,300
Congleton Jon
Chief Executive Officer
Award
Feb 19, 2026
$0.00
187,900
$0.00
187,900
Gold Alexander M
Award
Feb 19, 2026
$0.00
8,300
$0.00
8,300