DISC MEDICINE INC

$IRON
Smart money positioned

10 of the Top-200 alpha managers hold $IRON as of the latest 13F snapshot.

13F holders
201
Insider buys · 90d
0
Congress · 90d
0

Smart Money · top-200 alpha cohort

10 holders · Q1 2026

$IRON is held by 10 managers from the Top-Performer cohort as of Q1 2026. Position weights range from 0.00% to 1.25%, with an average of 0.25% of portfolio. Largest holder: Vestal Point Capital, LP at 1.25%. A weekly Smart-Money commentary for this ticker has not been generated yet this batch — the table below shows the full cohort positioning.

Smart Money shows holdings from our Top-Performer cohort — the 200 highest-alpha manager_13f funds in our universe. Position weight (current quarter) and QoQ delta versus prior quarter. α is the manager's annual alpha vs benchmark.

Institutional holders

Top 10 of 201 · Source: 13F-HR
01
TB Capital Gestao de Recursos Ltda.
0.02% of portfolio
9,316,540 sh
02
Vida Ventures Advisors, LLC
2.49% of portfolio
2,683,724 sh
03
Fir Tree Capital Management LP
2.72% of portfolio
2,544,624 sh
04
Axa S.a.
1,698,244 sh
05
Byrne Asset Management LLC
12.25% of portfolio
1,513,875 sh
06
Heritage Investment Group, Inc.
2.23% of portfolio
1,354,852 sh
07
State Street
1,187,991 sh
08
Sculptor Capital LP
1.36% of portfolio
1,067,550 sh
09
GSG Advisors LLC
1.75% of portfolio
988,401 sh
10
Jupiter Wealth Management LLC
0.23% of portfolio
958,281 sh
See all 201 13F holders · Pro →

Insider activity · last 90 days

32 transactions · 1 filers
17 Dec 2025
Bitterman Kevin
▼ SOLD
148
$91.47
S
17 Dec 2025
Bitterman Kevin
▼ SOLD
213
$91.47
S
17 Dec 2025
Bitterman Kevin
▼ SOLD
393
$91.47
S
17 Oct 2025
Bitterman Kevin
▼ SOLD
450
$91.88
S
17 Oct 2025
Bitterman Kevin
▼ SOLD
10,095
$90.66
S
17 Oct 2025
Bitterman Kevin
▼ SOLD
10,094
$90.66
S
17 Oct 2025
Bitterman Kevin
▼ SOLD
2,251
$89.70
S
17 Oct 2025
Bitterman Kevin
▼ SOLD
13,014
$88.91
S
17 Oct 2025
Bitterman Kevin
▼ SOLD
5,065
$87.37
S
17 Oct 2025
Bitterman Kevin
▼ SOLD
5,066
$87.37
S
17 Oct 2025
Bitterman Kevin
▼ SOLD
3,000
$86.13
S
17 Oct 2025
Bitterman Kevin
▼ SOLD
1,125
$84.89
S

Transaction codes: P open-market purchase · S sale · M option exercise · A grant · F tax-withhold sale. Insider names link to each individual's expert page.

Congress trades · last 90 days

No Congress trades

No STOCK Act filings reference $IRON in the recent window.

Source data: SEC EDGAR · 13F-HR · Form 4 · U.S. House Clerk PTR (disclosures-clerk.house.gov) · Senate eFD (senate.gov) · Last refreshed 07:51 UTC.