SEC 13F Intelligence

Atlas Venture Life Science Advisors, LLC / IRON

Atlas Venture Life Science Advisors, LLC’s Disc Medicine Inc Position

Does Atlas Venture Life Science Advisors, LLC own Disc Medicine Inc (IRON)? Yes — 1.51M shares worth $97M (+12.25% of its 13F portfolio) as of Q1 2026.

Position Value
$97M
Q1 2026
Shares
1.51M
% of Portfolio
+12.25%
Quarters Held
14
currently held

Position History IRON

Reported value by quarter
Q4 ’22: $69MQ4 ’22Q1 ’23: $73MQ2 ’23: $154MQ2 ’23Q3 ’23: $129MQ4 ’23: $148MQ4 ’23Q1 ’24: $142MQ2 ’24: $113MQ2 ’24Q3 ’24: $123MQ4 ’24: $159MQ4 ’24Q1 ’25: $118MQ2 ’25: $126MQ2 ’25Q3 ’25: $142MQ4 ’25: $120MQ4 ’25Q1 ’26: $97Mfilingsflow.com
QuarterSharesValue% of Portfolio
Q1 20261.51M$97M+12.25%
Q4 20251.51M$120M+13.90%
Q3 20252.14M$142M+18.81%
Q2 20252.38M$126M+19.07%
Q1 20252.38M$118M+22.69%
Q4 20242.51M$159M+19.41%
Q3 20242.51M$123M+11.43%
Q2 20242.51M$113M+11.91%
Q1 20242.29M$142M+13.14%
Q4 20232.56M$148M+17.58%
Q3 20232.75M$129M+19.98%
Q2 20233.46M$154M+19.13%
Q1 20233.46M$73M+9.93%
Q4 20223.46M$69M+8.29%

Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Atlas Venture Life Science Advisors, LLC’s full portfolio or all institutional holders of IRON.