Zenas BioPharma Ownership & Insider Activity

Zenas BioPharma (ZBIO) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 0.7% of shares outstanding. Institutional investors hold 51.2%.

Shares Outstanding

65.177M

Shares Float

44.395M

Insider Shares Owned

467.571K

Insider % Owned

0.7%

Institutional Shares Held

33.399M

Institutional % Held

51.2%

Ownership Breakdown

Net Insider Activity by Month

Zenas BioPharma Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
May 18, 2026	LEON MOULDER JR	CHIEF EXECUTIVE OFFICER	BUY	60.000K	$16.88	$1.0M
Apr 28, 2026	LEON MOULDER JR	CHIEF EXECUTIVE OFFICER	BUY	60.000K	$17.79	$1.1M