IRON
DISC MEDICINE (IRON)
NASDAQ
$70.53-$0.27 (-0.39%)
Price as of Jun 23, 2026 4:10 PM EDT
  • $2.7B
    Market Cap
  • 37.00%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
FMR LLC
14.63%
5.6M
+136,672 (+2.45%)
Mar 31, 2026
RA CAPITAL MANAGEMENT, L.P.
6.41%
2.5M
+474,089 (+19.35%)
Mar 31, 2026
NOVO HOLDINGS A/S
6.13%
2.3M
+2.3M (+100.00%)
Dec 31, 2022
BLACKROCK, INC.
5.95%
2.3M
-1,149 (-0.05%)
Mar 31, 2026
BLACKROCK FUNDING, INC. /DE
4.87%
1.9M
+8,579 (+0.46%)
Dec 31, 2024
VANGUARD GROUP INC
4.63%
1.8M
+319,621 (+18.08%)
Dec 31, 2025
WELLINGTON MANAGEMENT GROUP LLP
4.54%
1.7M
+217,102 (+12.51%)
Mar 31, 2026

Current Ownership Distribution

  • Institutions222.2M (91.51%)
  • Mutual Funds13.1M (5.38%)
  • Insiders7.5M (3.11%)
  • Other0 (0.00%)

Insider Transactions

  • 3.11% (7.5M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 7
    Number of InsiderSelling (last 12 months)
  • $1.1B
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
AHMED NADIM
Award
Jun 18, 2026
$0.00
5,176
$0.00
5,176
Chin Mark
Award
Jun 18, 2026
$0.00
6,212
$0.00
6,212
Quisel John D
Chief Executive Officer
Exempt
Jun 18, 2026
$0.00
34,000
$0.00
41,375
GEMAYEL GEORGES
Award
Jun 18, 2026
$0.00
6,212
$0.00
6,212
Khara Rahul
Chief Legal Officer
Exempt
Jun 18, 2026
$0.00
7,500
$0.00
57,304
Quisel John D
Chief Executive Officer
Exempt
Jun 18, 2026
$335,240.00
34,000
$9.86
260,064
Khara Rahul
Chief Legal Officer
Exempt
Jun 18, 2026
$110,175.00
7,500
$14.69
59,673
Quisel John D
Chief Executive Officer
Sell
Jun 18, 2026
$1.6M
22,927
$69.92
237,137
Khara Rahul
Chief Legal Officer
Sell
Jun 18, 2026
$377,688.42
5,400
$69.94
54,273
Quisel John D
Chief Executive Officer
Sell
Jun 18, 2026
$673,205.40
9,522
$70.70
227,615
Khara Rahul
Chief Legal Officer
Sell
Jun 18, 2026
$113,161.12
1,600
$70.73
52,673
Quisel John D
Chief Executive Officer
Sell
Jun 18, 2026
$111,071.14
1,551
$71.61
226,064
Khara Rahul
Chief Legal Officer
Sell
Jun 18, 2026
$35,811.00
500
$71.62
52,173
Yu Jonathan Yen-Wen
Chief Operating Officer
Exempt
Jun 16, 2026
$0.00
5,261
$0.00
1,753
Yu Jonathan Yen-Wen
Chief Operating Officer
Exempt
Jun 16, 2026
$0.00
13,351
$0.00
31,951
Yu Jonathan Yen-Wen
Chief Operating Officer
Exempt
Jun 16, 2026
$51,873.46
5,261
$9.86
59,585
Yu Jonathan Yen-Wen
Chief Operating Officer
Exempt
Jun 16, 2026
$131,640.86
13,351
$9.86
72,936
Yu Jonathan Yen-Wen
Chief Operating Officer
Sell
Jun 16, 2026
$801,101.79
11,651
$68.76
61,285
Yu Jonathan Yen-Wen
Chief Operating Officer
Sell
Jun 16, 2026
$486,699.20
6,961
$69.92
54,324
Savage William Jacob
Chief Medical Officer
Sell
Mar 02, 2026
$287,771.75
4,392
$65.52
88,197
Savage William Jacob
Chief Medical Officer
Sell
Mar 02, 2026
$198,297.27
2,986
$66.41
85,211
Franchi Jean M.
Chief Financial Officer
Sell
Feb 25, 2026
$24,377.09
353
$69.06
70,990
Khara Rahul
Chief Legal Officer
Sell
Feb 17, 2026
$179,339.58
2,853
$62.86
52,173
Yu Jonathan Yen-Wen
Chief Operating Officer
Sell
Feb 17, 2026
$203,100.66
3,231
$62.86
54,324
Stephenson Pamela
Chief Commercial Officer
Sell
Feb 17, 2026
$347,678.66
5,531
$62.86
80,998
Savage William Jacob
Chief Medical Officer
Sell
Feb 17, 2026
$204,672.16
3,256
$62.86
92,589
Savage William Jacob
Chief Medical Officer
Award
Feb 10, 2026
$0.00
25,500
$0.00
25,500
Franchi Jean M.
Chief Financial Officer
Award
Feb 10, 2026
$0.00
25,500
$0.00
25,500
Stephenson Pamela
Chief Commercial Officer
Award
Feb 10, 2026
$0.00
25,500
$0.00
25,500
Khara Rahul
Chief Legal Officer
Award
Feb 10, 2026
$0.00
25,500
$0.00
25,500