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IRON — structural market context

Disc Medicine, Inc.

Structural market context from public regulatory and market data, shown with its as-of dates. Descriptive only: nothing on this page is a recommendation, a prediction, or advice to buy or sell any security.

What changed

As of the close on Oct 21. Each line shows the earlier value, the later value and their dates.

Price

Close $76.00 (Oct 21) vs $79.48 (Oct 20): −4.38%.

Volume

4.13× its 20-session average (1.1M) on Oct 21.

Includes pre- and post-market trading.

Short interest

Short interest 7.3M shares (settlement Sep 30) vs 7.2M (Sep 15).

No new publication in this window. Latest: settlement Sep 30, published Oct 10.

Fails-to-deliver

Latest file (settlements Sep 15–Sep 30, published Oct 16): no fails listed.

Previous file (settlements Sep 1–Sep 14, published Sep 30): 1 day with fails, largest 12K shares on Sep 14.

No new publication in this window.

Analyst rating actions

2 rating actions recorded.

Jefferies — Rating maintained — Oct 21

Jefferies — Price target change — Oct 21

Insider filings (Form 4)

1 Form 4 filing recorded, with 9 transactions: 0 purchase transactions (code P, $0), 9 sale transactions (code S, $3.4M).

Filed Oct 21. Form 4 data arrives about a day after filing.

IRON short interest & days to cover

SHARES SHORT
7.3M
% OF FLOAT
25.8%
DAYS TO COVER
12.8
CHANGE VS PRIOR
+0.9%

FINRA consolidated short interest, reported twice a month and published ~2 weeks after each settlement date. % of float uses reported free float. · as of 2026-09-30 (22d ago)

IRON fails-to-deliver (FTD)

Settlement dateFailed sharesPrice
2026-09-14 · 38d12K$70.06
2026-08-21 · 62d48$78.84
2026-08-14 · 69d498$80.01

SEC fails-to-deliver files, published twice a month with ~6 weeks of delay.

IRON insider buying and selling (Form 4)

Last 12 months, Form 4 codes P and S: 0 purchases · 31 sales

InsiderTypeSharesValueFiled
Bitterman Kevin · directorSale (S)6K$475K2026-10-21
Bitterman Kevin · directorSale (S)266$21K2026-10-21
Bitterman Kevin · directorSale (S)11K$920K2026-10-21
Bitterman Kevin · directorSale (S)14K$1.1M2026-10-21
Bitterman Kevin · directorSale (S)55$4K2026-10-21

SEC Form 4 filings: purchases and sales reported on Form 4 (transaction codes P and S) only; grants and option exercises excluded. Attributed public records.

IRON offering filings (SEC)

2 SEC filings in the last 90 days, by filing date.

FiledFormDocument
2026-10-21Prospectus supplement filed under Rule 424(b)(5) 424B5View on sec.gov ↗
2026-10-20Prospectus supplement filed under Rule 424(b)(5) 424B5View on sec.gov ↗

See all filings on SEC EDGAR ↗

SEC filings listed by filing date. A registration statement or prospectus does not by itself show that any shares were sold, how many, or at what price. Some of these filings cover debt securities or resales by existing holders. A filing is made by the issuer and appears under each of its tickers. Source: SEC EDGAR daily index; each filing links to its page on sec.gov.

Source: SEC EDGAR daily index, read once a day after the SEC publishes it (around 10:30 pm ET). Forms covered: S-1, S-3, F-1 and F-3 with their amendments, S-3ASR, F-3ASR, 424B4 and 424B5. · as of 2026-10-21

IRON analyst ratings

FirmActionRatingPublished
JefferiesholdBuy2026-10-21
Jefferiesprice_target—2026-10-21
Morgan StanleyholdOverweight2026-10-20
Morgan Stanleyprice_target—2026-10-20
Cantor Fitzgeraldprice_target—2026-10-20

Rating actions as published by the firms, from public feeds. They are not graded here.

Frequently asked questions

What is IRON's short interest?
As of the FINRA settlement date 2026-09-30, IRON had 7.3M shares sold short — 25.8% of its float, with 12.8 days to cover at average volume. FINRA publishes this data roughly two weeks after each twice-monthly settlement, so it is inherently delayed. A short-interest figure describes an aggregate position; it does not predict what the stock will do.
Are insiders buying IRON?
In the last 12 months of SEC Form 4 filings, IRON recorded 0 insider purchases and 31 sales reported on Form 4 (transaction codes P and S; grants and option exercises excluded). These are attributed public records — information, not instruction.
What are the SEC offering filings listed for IRON?
They are registration statements (Forms S-1, S-3, F-1 and F-3, with their amendments and the S-3ASR and F-3ASR automatic shelf forms) and prospectuses filed under Rule 424(b)(4) or 424(b)(5). In the last 90 days the issuer of IRON filed 2; the most recent was a prospectus supplement filed under Rule 424(b)(5) on 2026-10-21. A registration statement or prospectus does not by itself show that any shares were sold, how many, or at what price, and some of these filings cover debt securities or resales by existing holders.
What do analysts say about IRON?
The most recent action: Jefferies hold to Buy on 2026-10-21. Rating actions are shown as published by the firms; they are not graded here.
Is this page telling me to buy or sell IRON?
No. Everything on this page is descriptive, structural market context from public data, shown with its as-of dates. TradeAI News does not issue directional recommendations, price predictions, or buy/sell advice — for any ticker.
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IRON: the full history

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Not financial advice. Trading involves risk. Descriptive structural context, never a recommendation.