Bitterman Kevin sold $1.9M of IRON

Bitterman Kevin sold 27,136 shares of Disc Medicine, Inc. (IRON) at $70.11 ($1.90M total) on 2026-09-11.

Original reporting
SEC EDGAR · Bitterman Kevin
Published Sep 15, 2026, 8:30 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Sep 15, 2026, 8:48 PM UTC. Informational, not investment advice.
How this was made
AlphAI summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
AlphAI market briefInsider activity
Primary signal
$IRON
Bearish
medium confidence
Mentioned
$IRON
Relevance
6/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$IRONBearishLow
01

Why it matters

The director's complete exit may prompt investors to reassess ownership confidence.

02

Market read

Direct insider sell of $1.9M is material for a micro‑cap biotech, offering a modest trading signal.

03

What to watch

No accompanying corporate news; sale may be unrelated to company fundamentals.

Relevance 6/10Novelty 7/10Timing: filing today

Background

SEC Form 4 filing discloses insider transactions; this is the first public report of the sale.

Company-level read

Ticker impact

$IRONBearishMedium confidence
Context

Director Kevin Bitterman sold 27,136 shares for $1.9M, reducing his stake to zero.

Expected impact

Potential short-term downward pressure on IRON stock.

Evidence & confidence

Director insider sales are closely watched; a $1.9M sale is material for a micro‑cap biotech.

Market effects

May raise caution for biotech sector investors monitoring insider activity.

Limited to US biotech market.

Low

Counterpoint

Insider sale could be routine liquidity event, not a negative signal.

Key entities

  • Disc Medicine, Inc.

    Biotech firm listed on NASDAQ under ticker IRON.

  • Kevin Bitterman

    Director of Disc Medicine who sold his entire shareholding.

Full insider trading history

This story covers one filing. See everything behind it: every insider buy and sell on record, 10b5-1 plans, late filings, and which officers and directors are trading.

Related articles

$IRONHighAI 9/10

Disc Medicine Reports Third Quarter 2026 Financial Results and Provides Business Update

Disc Medicine, Inc. (IRON) filed an SEC Form 8-K — Results of Operations and Financial Condition. Exhibit 99.1 Disc Medicine Reports Third Quarter 2026 Financial Results and Provides Business Update • Pivotal Phase 3 APOLLO trial of bitopertin in erythropoietic protoporphyria (EPP) successfully met all primary and secondary endpoints • Bitopertin NDA resubmission planned by e

$IRONHighAI 9/10

Disc Medicine, Inc. (IRON): Results of Operations and Financial Condition

Disc Medicine, Inc. (IRON) filed an SEC Form 8-K — Results of Operations and Financial Condition. Exhibit 99.1 Disc Medicine Announces Proposed $350 Million Public Offering of Common Stock and Pre-Funded Warrants October 19, 2026 WATERTOWN, Mass., Oct. 19, 2026 (GLOBE NEWSWIRE) — Disc Medicine, Inc. (NASDAQ: IRON) (Disc), a clinical-stage biopharmaceutical company focused on

$IRONHighAI 8/10

Why is Disc Medicine stock sliding today?

Disc Medicine (IRON) stock fell 1.0% in pre-market trading after pricing a $450M public offering of 6M shares at $75 each, a discount to recent prices. The offering, with potential for additional shares, may dilute existing holders. Proceeds will fund clinical development and general corporate purposes. Analysts recently raised price targets following positive trial results, but insiders have been net sellers.