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Nantahala Capital Management, LLC

Position in IRON — Disc Medicine, Inc.

CIK 1472322 New Canaan, CT

Position in IRON

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$1,640,252
-$8,905,396 QoQ
Shares Held
25,653
-80.7% QoQ
Ownership
0.067%
of shares outstanding
% of Portfolio
0.11%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Sep 2022
11 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 Mar 31, 2026
CallValue
$0
CallShares
0
PutValue
$2,621,540
PutShares
41,000

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

Nantahala Capital Management, LLC holds $620,287,047 across 52 Biotechnology names.

# Ticker Company Shares Value (USD) Open

All Filings in IRON

Export CSV
12 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $2,621,540 41,000
2026-03-31 $1,640,252 25,653
2025-12-31 $10,545,648 132,800
2025-09-30 $19,017,824 287,800
2025-06-30 $15,241,888 287,800
2025-03-31 $7,366,129 148,391
2024-12-31 $9,510,000 150,000
2024-09-30 $7,371,000 150,000
2024-06-30 $6,760,500 150,000
2023-03-31 $1,897,310 89,538
2022-12-31 $3,237,336 162,762
2022-09-30 GMTX 257,672