Disc Medicine Ownership & Insider Activity

Disc Medicine (IRON) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 2.7% of shares outstanding. Institutional investors hold 55.8%. Over the past 90 days, insiders made 2 sales worth $4.5M.

Shares Outstanding

38.393M

Shares Float

32.924M

Insider Shares Owned

1.028M

Insider % Owned

2.7%

Institutional Shares Held

21.407M

Institutional % Held

55.8%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

Sales (90d)

$4.5M total

Net Activity

Net Selling

Net Value (90d)

-$4.5M

Disc Medicine Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Sep 11, 2026	Kevin Bitterman	—	SELL-OPTIONS	—	$57.59	$679K
Sep 4, 2026	Kevin Bitterman	—	SELL	1.689K	$79.96	$135K
Sep 1, 2026	Kevin Bitterman	—	SELL	54.496K	$80.15	$4.4M
Aug 24, 2026	YenWen Jonathan Yu	CHIEF OPERATING OFFICER	SELL-OPTIONS	—	$48.30	$633K
Aug 17, 2026	John Quisel	CHIEF EXECUTIVE OFFICER	SELL-OPTIONS	—	$46.33	$2.2M
Aug 12, 2026	YenWen Jonathan Yu	CHIEF OPERATING OFFICER	SELL-OPTIONS	—	$48.07	$56K
Aug 6, 2026	Rahul Khara	CHIEF LEGAL OFFICER	SELL-OPTIONS	—	$47.34	$327K
Jul 13, 2026	John Quisel	CHIEF EXECUTIVE OFFICER	SELL-OPTIONS	—	$42.82	$2.1M
Jul 7, 2026	YenWen Jonathan Yu	CHIEF OPERATING OFFICER	SELL-OPTIONS	—	$48.00	$7K
Jun 26, 2026	Rahul Khara	CHIEF LEGAL OFFICER	SELL-OPTIONS	—	$44.84	$151K
Jun 26, 2026	YenWen Jonathan Yu	CHIEF OPERATING OFFICER	SELL-OPTIONS	—	$43.00	$18K
Jun 22, 2026	YenWen Jonathan Yu	CHIEF OPERATING OFFICER	SELL-OPTIONS	—	$43.08	$574K
Jun 18, 2026	Rahul Khara	CHIEF LEGAL OFFICER	SELL-OPTIONS	—	$42.46	$416K
Jun 18, 2026	John Quisel	CHIEF EXECUTIVE OFFICER	SELL-OPTIONS	—	$40.04	$2.1M
Jun 16, 2026	YenWen Jonathan Yu	CHIEF OPERATING OFFICER	SELL-OPTIONS	—	$39.53	$1.1M