IRON
DISC MEDICINE (IRON)
NASDAQ
$64.55+$0.94 (+1.48%)
Price as of Oct 02, 2026 4:10 PM EDT
  • $2.4B
    Market Cap
  • -3.42%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
FMR LLC
12.75%
4.9M
-692,421 (-14.15%)
Jun 30, 2026
BLACKROCK, INC.
6.43%
2.5M
+194,068 (+7.86%)
Jun 30, 2026
RA CAPITAL MANAGEMENT, L.P.
6.38%
2.5M
0 (0.00%)
Jun 30, 2026
NOVO HOLDINGS A/S
6.10%
2.3M
+2.3M (+100.00%)
Dec 31, 2022
JPMORGAN CHASE & CO
4.89%
1.9M
+504,315 (+26.89%)
Jun 30, 2026
PRICE T ROWE ASSOCIATES INC /MD/
4.88%
1.9M
+326,049 (+17.39%)
Jun 30, 2026
BLACKROCK FUNDING, INC. /DE
4.84%
1.9M
+8,579 (+0.46%)
Dec 31, 2024

Current Ownership Distribution

  • Institutions265.4M (86.47%)
  • Mutual Funds34.3M (11.18%)
  • Insiders7.2M (2.35%)
  • Other0 (0.00%)

Insider Transactions

  • 2.35% (7.2M)
    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
Bitterman Kevin
Exempt
Sep 11, 2026
$0.00
7,136
$0.00
0
Bitterman Kevin
Exempt
Sep 11, 2026
$0.00
10,000
$0.00
0
Bitterman Kevin
Exempt
Sep 11, 2026
$0.00
10,000
$0.00
0
Bitterman Kevin
Exempt
Sep 11, 2026
$326,043.84
7,136
$45.69
7,136
Bitterman Kevin
Exempt
Sep 11, 2026
$388,500.00
10,000
$38.85
17,136
Bitterman Kevin
Exempt
Sep 11, 2026
$508,600.00
10,000
$50.86
27,136
Bitterman Kevin
Sell
Sep 11, 2026
$1.9M
27,136
$70.11
0
Bitterman Kevin
Sell
Sep 03, 2026
$224,743.80
2,810
$79.98
319,778
Bitterman Kevin
Sell
Sep 03, 2026
$187,073.22
2,339
$79.98
312,989
Bitterman Kevin
Sell
Sep 03, 2026
$4,318.92
54
$79.98
13,445
Bitterman Kevin
Sell
Sep 02, 2026
$2.1M
26,542
$80.17
322,598
Bitterman Kevin
Sell
Sep 02, 2026
$1.8M
22,090
$80.17
315,337
Bitterman Kevin
Sell
Sep 02, 2026
$40,966.87
511
$80.17
13,501
Bitterman Kevin
Sell
Sep 02, 2026
$809.80
10
$80.98
322,588
Bitterman Kevin
Sell
Sep 02, 2026
$728.82
9
$80.98
315,328
Bitterman Kevin
Sell
Sep 02, 2026
$161.96
2
$80.98
13,499
Bitterman Kevin
Sell
Sep 01, 2026
$5,596.50
70
$79.95
349,140
Bitterman Kevin
Sell
Sep 01, 2026
$4,637.10
58
$79.95
337,427
Bitterman Kevin
Sell
Sep 01, 2026
$79.95
1
$79.95
14,012
Yu Jonathan Yen-Wen
Chief Operating Officer
Exempt
Aug 25, 2026
$0.00
8,796
$0.00
13,847
Yu Jonathan Yen-Wen
Chief Operating Officer
Exempt
Aug 25, 2026
$118,746.00
8,796
$13.50
63,120
Yu Jonathan Yen-Wen
Chief Operating Officer
Sell
Aug 25, 2026
$731,091.85
8,796
$83.12
54,324
Yu Jonathan Yen-Wen
Chief Operating Officer
Exempt
Aug 24, 2026
$0.00
300
$0.00
22,643
Yu Jonathan Yen-Wen
Chief Operating Officer
Exempt
Aug 24, 2026
$4,050.00
300
$13.50
54,624
Yu Jonathan Yen-Wen
Chief Operating Officer
Sell
Aug 24, 2026
$24,759.99
300
$82.53
54,324
Yu Jonathan Yen-Wen
Chief Operating Officer
Exempt
Aug 12, 2026
$0.00
804
$0.00
22,943
Yu Jonathan Yen-Wen
Chief Operating Officer
Exempt
Aug 12, 2026
$10,854.00
804
$13.50
55,128
Yu Jonathan Yen-Wen
Chief Operating Officer
Sell
Aug 12, 2026
$66,444.57
804
$82.64
54,324
Yu Jonathan Yen-Wen
Chief Operating Officer
Exempt
Jul 07, 2026
$0.00
100
$0.00
23,747
Yu Jonathan Yen-Wen
Chief Operating Officer
Exempt
Jul 07, 2026
$1,350.00
100
$13.50
54,424