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Disc Medicine, Inc.

IRON Net selling
CIK 0001816736 #1749 in the set updated 17 Sep 2026
Bought (120 mo)
$34.95M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$386.75M
$13.24M on a plan · $39.04M straight out of an exercise
Sold at will
$334.47M
183 of 357 sales
Net
−$351.80M
−$299.52M against sales at will

By person

20 insiders · 396 transactions
Insider
Role
Bought
Sold
Net
Holding
Worth
Change
Atlas Venture Fund X, L.P. entity
10% owner
$62.87M (35)
−$62.87M
1,600,512
$112.21M
Novo Holdings A/S entity
10% owner
$57.63M (1)
−$57.63M
1,090,772
$76.47M
−53.4%
Bitterman Kevin
Director
$8.00M (1)
$61.63M (86)
−$53.63M
27,440
$1.92M
−95.5%
AI DMI LLC entity
10% owner
$10.00M (1)
$59.87M (1)
−$49.87M
2,814,379
$197.32M
+4.0%
Ashiya Mona
Director
$5.50M (6)
$52.70M (39)
−$47.20M
186,541
$13.08M
−80.0%
ORBIMED ADVISORS LLC entity
Director
$5.50M (6)
$52.70M (39)
−$47.20M
186,541
$13.08M
Quisel John D
Chief Executive Officer
$17.45M (27) scheduled
−$17.45M
262,064
$18.37M
Yu Jonathan Yen-Wen
Chief Operating Officer
$5.68M (14) scheduled
−$5.68M
54,324
$3.81M
Savage William Jacob
Chief Medical Officer
$5.60M (29) scheduled
−$5.60M
79,480
$5.57M
+291.0%
FS Development Holdings, LLC entity
10% owner
$4.42M (1)
+$4.42M
883,000
$61.91M
Khara Rahul
Chief Legal Officer
$3.60M (22) scheduled
−$3.60M
52,324
$3.67M
+3,916%
White William Richard
Director
$2.96M (31) scheduled
−$2.96M
0
$0.00
Franchi Jean M.
Chief Financial Officer
$1.72M (10) scheduled
−$1.72M
64,333
$4.51M
Leonard Braden Michael
10% owner
$1.34M (4)
$47.03K (1)
+$1.29M
5,247,500
$367.90M
+21.6%
Bryce Joanne
Chief Financial Officer
$1.09M (10) scheduled
−$1.09M
23,665
$1.66M
+585.5%
MacDonald Brian Richard
Chief Innovation Officer
$711.14K (10) scheduled
−$711.14K
12,276
$860.67K
−53.1%
Stephenson Pamela
Chief Commercial Officer
$518.90K (2)
−$518.90K
80,998
$5.68M
Meyenburg Jason Patrick
Chief Executive Officer
$122.93K (1)
+$122.93K
13,000
$911.43K
Piekos Brian
CFO
$72.43K (1)
+$72.43K
17,615
$1.23M
Tananbaum James B.
Director
441,500
$30.95M

No percentages here. These insiders hold more than one class of share between them, and the share count on file covers one of them rather than all. Dividing the two would compare different things.

Insider
Date
Role
Action
Shares
Price
Amount
ORBIMED ADVISORS LLC
17 Jun 2024
Director
Buy indirect
10,986
$36.00
$395.50K
ORBIMED ADVISORS LLC
17 Jun 2024
Director
Buy indirect
43,944
$36.00
$1.58M
Showing 250 of 396 transactions. The figures above use every one of them.

What was left out

Form 4 filings counted 228
Amendments (4/A) skipped 3
Filings about a different issuer 0
Unreadable filings 0
Joint filings 21
Sales on a Rule 10b5-1 plan 60
Sales straight out of an exercise 114
Sales at will 183
Transactions with no price 0
Shares from compensation/vesting 15,363,464
Sales filed before the plan box existed 1
History held since 19 Oct 2020