Form 13-F position report

DISC MEDICINE INC

Reported by The Goldman Sachs Group Inc

IRON CUSIP 254604101 Manager CIK 0000886982

Reported 754,195 shares, up 225,114 (42.5%) from the prior quarter.

Reported value 71.3%; share count 42.5% vs. the prior quarter.

Added
% of reported 13F value < 0.01% This manager · Q4 2025
Shares 754,195 Quarter-end amount reported
Reported value $59,890,625 Fair value at quarter end
Consecutive quarters held 12 Through Q4 2025

Reported position value by quarter

Reported position value by quarter

Each bar is a Form 13-F quarter-end snapshot. It does not show trades made within the quarter.

Reported position value by quarter
Date Holding Value
2023-03-31 459272
2023-06-30 0
2023-09-30 1285091
2023-12-31 3591228
2024-03-31 4258770
2024-06-30 2444912
2024-09-30 8430753
2024-12-31 10892754
2025-03-31 6490479
2025-06-30 11961333
2025-09-30 34961672
2025-12-31 59890625
2026-03-31 40911498
2026-06-30 7122593

Quarterly position history

How this manager's reported quarter-end position changed over time.

14 quarters
Quarterly reported position history for DISC MEDICINE INC held by The Goldman Sachs Group Inc.
Quarter Activity Shares Change % of reported 13F Reported value Filed Source filing
Q2 2026 Reduced 97,383 -542,459 (-84.8%) < 0.01% $7,122,593 2026-08-14
Q1 2026 Reduced 639,842 -114,353 (-15.2%) < 0.01% $40,911,498 2026-05-15
Q4 2025 Added 754,195 +225,114 (42.5%) < 0.01% $59,890,625 2026-02-10
Q3 2025 Added 529,081 +303,225 (134.3%) < 0.01% $34,961,672 2025-11-14
Q2 2025 Added 225,856 +95,105 (72.7%) < 0.01% $11,961,333 2025-08-14
Q1 2025 Reduced 130,751 -41,059 (-23.9%) < 0.01% $6,490,479 2025-05-09
Q4 2024 Added 171,810 +244 (0.1%) < 0.01% $10,892,754 2025-02-11
Q3 2024 Added 171,566 +117,319 (216.3%) < 0.01% $8,430,753 2024-11-14
Q2 2024 Reduced 54,247 -14,156 (-20.7%) < 0.01% $2,444,912 2024-08-13
Q1 2024 Added 68,403 +6,228 (10.0%) < 0.01% $4,258,770 2024-05-15
Q4 2023 Added 62,175 +34,821 (127.3%) < 0.01% $3,591,228 2024-02-13
Q3 2023 New 27,354 +27,354 (0.0%) < 0.01% $1,285,091 2023-11-14
Q2 2023 Reduced 0 -21,674 (-100.0%) 0 $0 2023-08-15
Q1 2023 New 21,674 +21,674 (0.0%) < 0.01% $459,272 2023-05-11

Who else reported the position

211 managers reported DISC MEDICINE INC for Q4 2025.

Managers reporting DISC MEDICINE INC in Q4 2025.
Manager Activity Shares Change % of reported 13F Reported value Tenure
FMR LLC Added 5,450,222 +515,063 0.02% $432,802,132 13 qtrs
BlackRock Inc Added 2,274,980 +255,697 < 0.01% $180,656,161 6 qtrs
RA CAPITAL MANAGEMENT L P Added 1,976,132 +399,026 1.61% $156,924,642 4 qtrs
VANGUARD GROUP INC Added 1,767,680 +319,621 < 0.01% $140,371,470 13 qtrs
PRICE T ROWE ASSOCIATES INC MD Added 1,698,005 +371,576 0.01% $134,839,000 11 qtrs
JPMorgan Chase & Co Added 1,581,127 +828,248 < 0.01% $125,557,326 13 qtrs
WELLINGTON MANAGEMENT GROUP LLP Added 1,518,274 +108,197 0.02% $120,566,138 11 qtrs
Atlas Venture Life Science Advisors LLC Reduced 1,513,875 -628,742 13.9% $120,216,814 13 qtrs
Frazier Life Sciences Management L P Reduced 1,260,000 -178,534 2.69% $100,056,600 11 qtrs
STATE STREET CORPORATION Added 1,187,991 +142,394 < 0.01% $94,338,365 13 qtrs
Premium adds each manager's conviction percentile across reporting peers.
Filing details and methodology As reported
Report period
December 31, 2025
Filed
February 10, 2026
Filing type
13F-HR
Position type
CMN

Voting authority reported

Sole
754,116
Shared
0
None
79

“None” means the manager reported no voting authority for those shares on non-routine matters. It does not disclose why and is not evidence of securities lending.

Form 13-F is a delayed quarter-end snapshot of disclosed long Section 13(f) securities. It can be filed up to 45 days after quarter end, excludes short positions and most non-U.S. securities, and does not reveal intra-quarter trading. For options, reported shares and value describe the underlying-share exposure; strike, expiry, premium, and written positions are not disclosed.