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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.

Individual transactions

108
Insider
Date
Role
Action
Shares
Price
Amount
Quisel John D
17 Feb 2026
Chief Executive Officer
Sell
13,264
$62.86
$833.78K
Yu Jonathan Yen-Wen
17 Feb 2026
Chief Operating Officer
Sell
3,231
$62.86
$203.10K
Savage William Jacob
17 Feb 2026
Chief Medical Officer
Sell
3,256
$62.86
$204.67K
Stephenson Pamela
17 Feb 2026
Chief Commercial Officer
Sell
5,531
$62.86
$347.68K
Khara Rahul
17 Feb 2026
Chief Legal Officer
Sell
2,853
$62.86
$179.34K
Bitterman Kevin
17 Dec 2025
Director
Sell indirect
148
$91.47
$13.54K
Bitterman Kevin
17 Dec 2025
Director
Sell indirect
213
$91.47
$19.48K
Bitterman Kevin
17 Dec 2025
Director
Sell indirect
393
$91.47
$35.95K
Bitterman Kevin
16 Dec 2025
Director
Sell indirect
14,359
$91.24
$1.31M
Bitterman Kevin
16 Dec 2025
Director
Sell indirect
18,666
$91.24
$1.70M
Bitterman Kevin
16 Dec 2025
Director
Sell indirect
35,898
$91.24
$3.28M
Bitterman Kevin
12 Dec 2025
Director
Sell indirect
1,371
$93.80
$128.60K
Bitterman Kevin
12 Dec 2025
Director
Sell indirect
1,540
$92.58
$142.57K
Bitterman Kevin
12 Dec 2025
Director
Sell indirect
6,570
$92.05
$604.77K
Bitterman Kevin
12 Dec 2025
Director
Sell indirect
1,793
$93.80
$168.18K
Bitterman Kevin
12 Dec 2025
Director
Sell indirect
2,005
$92.58
$185.62K
Bitterman Kevin
12 Dec 2025
Director
Sell indirect
8,527
$92.05
$784.91K
Bitterman Kevin
12 Dec 2025
Director
Sell indirect
3,446
$93.80
$323.23K
Bitterman Kevin
12 Dec 2025
Director
Sell indirect
3,852
$92.58
$356.62K
Bitterman Kevin
12 Dec 2025
Director
Sell indirect
16,403
$92.05
$1.51M
AI DMI LLC
22 Oct 2025
10% owner
Sell
744,047
$80.47
$59.87M
Bitterman Kevin
17 Oct 2025
Director
Sell indirect
450
$91.88
$41.35K
Bitterman Kevin
17 Oct 2025
Director
Sell indirect
450
$91.88
$41.35K
Bitterman Kevin
17 Oct 2025
Director
Sell indirect
10,095
$90.66
$915.21K
Bitterman Kevin
17 Oct 2025
Director
Sell indirect
10,094
$90.66
$915.12K
Bitterman Kevin
17 Oct 2025
Director
Sell indirect
2,251
$89.70
$201.91K
Bitterman Kevin
17 Oct 2025
Director
Sell indirect
2,251
$89.70
$201.91K
Bitterman Kevin
17 Oct 2025
Director
Sell indirect
13,014
$88.91
$1.16M
Bitterman Kevin
17 Oct 2025
Director
Sell indirect
13,014
$88.91
$1.16M
Bitterman Kevin
17 Oct 2025
Director
Sell indirect
5,065
$87.37
$442.53K
Bitterman Kevin
17 Oct 2025
Director
Sell indirect
5,066
$87.37
$442.62K
Bitterman Kevin
17 Oct 2025
Director
Sell indirect
3,000
$86.13
$258.39K
Bitterman Kevin
17 Oct 2025
Director
Sell indirect
3,000
$86.13
$258.39K
Bitterman Kevin
17 Oct 2025
Director
Sell indirect
1,125
$84.89
$95.50K
Bitterman Kevin
17 Oct 2025
Director
Sell indirect
1,125
$84.89
$95.50K
Bitterman Kevin
16 Oct 2025
Director
Sell indirect
1,425
$77.11
$109.88K
Bitterman Kevin
15 Oct 2025
Director
Sell indirect
2,618
$77.76
$203.58K
Bitterman Kevin
15 Oct 2025
Director
Sell indirect
19,542
$77.16
$1.51M
Bitterman Kevin
8 Oct 2025
Director
Sell indirect
13,267
$72.39
$960.40K
Bitterman Kevin
8 Oct 2025
Director
Sell indirect
12,689
$71.51
$907.39K
Bitterman Kevin
8 Oct 2025
Director
Sell indirect
25,400
$70.54
$1.79M
Bitterman Kevin
8 Oct 2025
Director
Sell indirect
12,386
$69.31
$858.47K
Bitterman Kevin
8 Oct 2025
Director
Sell indirect
8,219
$68.26
$561.03K
Bitterman Kevin
7 Oct 2025
Director
Sell indirect
6,661
$69.01
$459.68K
Bitterman Kevin
7 Oct 2025
Director
Sell indirect
11,378
$68.01
$773.82K
Bitterman Kevin
24 Jul 2025
Director
Sell indirect
13,033
$61.17
$797.23K
Bitterman Kevin
23 Jul 2025
Director
Sell indirect
29,837
$60.97
$1.82M
Bitterman Kevin
18 Jul 2025
Director
Sell indirect
664
$61.13
$40.59K
ORBIMED ADVISORS LLC
24 Mar 2025
Director
Sell indirect
756
$54.11
$40.91K
ORBIMED ADVISORS LLC
24 Mar 2025
Director
Sell indirect
3,026
$54.11
$163.74K
ORBIMED ADVISORS LLC
24 Mar 2025
Director
Sell indirect
1,956
$54.11
$105.84K
Ashiya Mona
24 Mar 2025
Director
Sell indirect
756
$54.11
$40.91K
Ashiya Mona
24 Mar 2025
Director
Sell indirect
3,026
$54.11
$163.74K
Ashiya Mona
24 Mar 2025
Director
Sell indirect
1,956
$54.11
$105.84K
ORBIMED ADVISORS LLC
21 Mar 2025
Director
Sell indirect
1,320
$54.00
$71.28K
ORBIMED ADVISORS LLC
21 Mar 2025
Director
Sell indirect
5,279
$54.00
$285.07K
ORBIMED ADVISORS LLC
21 Mar 2025
Director
Sell indirect
3,412
$54.00
$184.25K
Ashiya Mona
21 Mar 2025
Director
Sell indirect
1,320
$54.00
$71.28K
Ashiya Mona
21 Mar 2025
Director
Sell indirect
5,279
$54.00
$285.07K
Ashiya Mona
21 Mar 2025
Director
Sell indirect
3,412
$54.00
$184.25K
ORBIMED ADVISORS LLC
20 Mar 2025
Director
Sell indirect
364
$54.01
$19.66K
ORBIMED ADVISORS LLC
20 Mar 2025
Director
Sell indirect
1,457
$54.01
$78.69K
ORBIMED ADVISORS LLC
20 Mar 2025
Director
Sell indirect
941
$54.01
$50.82K
Ashiya Mona
20 Mar 2025
Director
Sell indirect
364
$54.01
$19.66K
Ashiya Mona
20 Mar 2025
Director
Sell indirect
1,457
$54.01
$78.69K
Ashiya Mona
20 Mar 2025
Director
Sell indirect
941
$54.01
$50.82K
ORBIMED ADVISORS LLC
19 Mar 2025
Director
Sell indirect
5,228
$54.02
$282.42K
ORBIMED ADVISORS LLC
19 Mar 2025
Director
Sell indirect
20,911
$54.02
$1.13M
ORBIMED ADVISORS LLC
19 Mar 2025
Director
Sell indirect
13,517
$54.02
$730.19K
Ashiya Mona
19 Mar 2025
Director
Sell indirect
5,228
$54.02
$282.42K
Ashiya Mona
19 Mar 2025
Director
Sell indirect
20,911
$54.02
$1.13M
Ashiya Mona
19 Mar 2025
Director
Sell indirect
13,517
$54.02
$730.19K
ORBIMED ADVISORS LLC
12 Mar 2025
Director
Sell indirect
10,733
$54.44
$584.30K
ORBIMED ADVISORS LLC
12 Mar 2025
Director
Sell indirect
42,930
$54.44
$2.34M
ORBIMED ADVISORS LLC
12 Mar 2025
Director
Sell indirect
27,750
$54.44
$1.51M
ORBIMED ADVISORS LLC
12 Mar 2025
Director
Sell indirect
233
$55.05
$12.83K
ORBIMED ADVISORS LLC
12 Mar 2025
Director
Sell indirect
933
$55.05
$51.36K
ORBIMED ADVISORS LLC
12 Mar 2025
Director
Sell indirect
603
$55.05
$33.20K
Ashiya Mona
12 Mar 2025
Director
Sell indirect
10,733
$54.44
$584.30K
Ashiya Mona
12 Mar 2025
Director
Sell indirect
42,930
$54.44
$2.34M
Ashiya Mona
12 Mar 2025
Director
Sell indirect
27,750
$54.44
$1.51M
Ashiya Mona
12 Mar 2025
Director
Sell indirect
233
$55.05
$12.83K
Ashiya Mona
12 Mar 2025
Director
Sell indirect
933
$55.05
$51.36K
Ashiya Mona
12 Mar 2025
Director
Sell indirect
603
$55.05
$33.20K
ORBIMED ADVISORS LLC
11 Mar 2025
Director
Sell indirect
3,567
$54.01
$192.65K
ORBIMED ADVISORS LLC
11 Mar 2025
Director
Sell indirect
14,267
$54.01
$770.56K
ORBIMED ADVISORS LLC
11 Mar 2025
Director
Sell indirect
9,222
$54.01
$498.08K
Ashiya Mona
11 Mar 2025
Director
Sell indirect
3,567
$54.01
$192.65K
Ashiya Mona
11 Mar 2025
Director
Sell indirect
14,267
$54.01
$770.56K
Ashiya Mona
11 Mar 2025
Director
Sell indirect
9,222
$54.01
$498.08K
ORBIMED ADVISORS LLC
10 Mar 2025
Director
Sell indirect
53
$55.01
$2.92K
ORBIMED ADVISORS LLC
10 Mar 2025
Director
Sell indirect
211
$55.01
$11.61K
ORBIMED ADVISORS LLC
10 Mar 2025
Director
Sell indirect
136
$55.01
$7.48K
ORBIMED ADVISORS LLC
10 Mar 2025
Director
Sell indirect
26,596
$54.29
$1.44M
ORBIMED ADVISORS LLC
10 Mar 2025
Director
Sell indirect
106,384
$54.29
$5.78M
ORBIMED ADVISORS LLC
10 Mar 2025
Director
Sell indirect
68,766
$54.29
$3.73M
Ashiya Mona
10 Mar 2025
Director
Sell indirect
53
$55.01
$2.92K
Ashiya Mona
10 Mar 2025
Director
Sell indirect
211
$55.01
$11.61K
Ashiya Mona
10 Mar 2025
Director
Sell indirect
136
$55.01
$7.48K
Ashiya Mona
10 Mar 2025
Director
Sell indirect
26,596
$54.29
$1.44M
Ashiya Mona
10 Mar 2025
Director
Sell indirect
106,384
$54.29
$5.78M
Ashiya Mona
10 Mar 2025
Director
Sell indirect
68,766
$54.29
$3.73M
Quisel John D
18 Feb 2025
Chief Executive Officer
Sell
5,574
$54.58
$304.23K
Franchi Jean M.
18 Feb 2025
Chief Financial Officer
Sell
3,136
$54.58
$171.16K
Yu Jonathan Yen-Wen
18 Feb 2025
Chief Operating Officer
Sell
1,610
$54.58
$87.87K
Savage William Jacob
18 Feb 2025
Chief Medical Officer
Sell
1,638
$54.58
$89.40K
Khara Rahul
18 Feb 2025
Chief Legal Officer
Sell
1,161
$54.58
$63.37K
Stephenson Pamela
18 Feb 2025
Chief Commercial Officer
Sell
3,137
$54.58
$171.22K
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