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CITADEL ADVISORS LLC

Position in IRON — Disc Medicine, Inc.

CIK 1423053 MIAMI, FL

Position in IRON

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$15,308,786
+$9,047,142 QoQ
Shares Held
209,308
+113.7% QoQ
Ownership
0.545%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#40
of 216 holders
Holding Since
Sep 2020
24 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in IRON Over Time

Shares Held

Position Value (USD)

Derivatives in IRON

reported options exposure · as of Jun 30, 2026
CallValue
$1,155,612
CallShares
15,800
PutValue
$1,258,008
PutShares
17,200

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Biotechnology

Healthcare · as of Jun 30, 2026

CITADEL ADVISORS LLC holds $6,088,670,159 across 436 Biotechnology names. IRON ranks #76 (0.3% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in IRON

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,155,612 15,800
2026-06-30 $1,258,008 17,200
2026-06-30 $15,308,786 209,308
2026-03-31 $6,261,644 97,930
2026-03-31 $786,462 12,300
2026-03-31 $1,336,346 20,900
2025-12-31 $7,972,366 100,395
2025-09-30 $257,712 3,900
2025-09-30 $3,330,035 50,394
2025-06-30 $1,085,680 20,500
2025-03-31 $44,676 900
2025-03-31 $24,820 500
2025-03-31 $3,088,302 62,214
2024-12-31 $37,486,581 591,271
2024-12-31 $25,360 400
2024-12-31 $805,180 12,700
2024-09-30 $147,420 3,000
2024-09-30 $20,197,719 411,024
2024-09-30 $49,140 1,000
2024-06-30 $513,798 11,400
2024-06-30 $265,913 5,900
2024-06-30 $14,490,951 321,521
2024-03-31 $2,938,672 47,200
2024-03-31 $20,279,576 325,724
2024-03-31 $884,092 14,200
2023-12-31 $929,936 16,100
2023-12-31 $10,854,490 187,924
2023-12-31 $115,520 2,000
2023-09-30 $14,584,047 310,431
2023-06-30 $28,918,608 651,320
2023-03-31 $3,628,533 171,238
2022-12-31 $19,293 970
2022-12-31 $1,107,435 55,678
2022-09-30 GMTX 579,914
2022-09-30 GMTX 11,600
2022-09-30 GMTX 21,700
2022-06-30 GMTX 16,600
2022-06-30 GMTX 566,968
2022-06-30 GMTX 22,800
2022-03-31 GMTX 341,410
2022-03-31 GMTX 19,500
2021-12-31 GMTX 56,000
2021-12-31 GMTX 335,256
2021-09-30 GMTX 364,863
2021-09-30 GMTX 10,900
2021-09-30 GMTX 32,200
2021-06-30 GMTX 27,500
2021-06-30 GMTX 375,134
2021-06-30 GMTX 74,900
2021-03-31 GMTX 424,341