Person · CIK 2126186

David J. Portman

10% owner at LeonaBio

Source: Forms 3, 4, 5 and 144 on SEC EDGAR

Sold on Form 4$0

Noticed on Form 144$0

Bought on Form 4$3K

Companies1

Holdings now

As reported after the latest Form 3, 4 or 5 at each company.

How these figures work

Options and RSUs are from the latest filing that lists them; earlier grants may also be held. Holdings can be out of date when a person stops filing.

Company	Security	Held	Shares or units	As of
LeonaBio LONA	Common Stock	See note	3,149,470	Oct 26, 2026 · Filing · EDGAR

Sold and noticed by quarter

Sold (Form 4) Noticed (Form 144) Bought (Form 4)

Quarterly totals as a table

Quarter	Sold (Form 4)	Noticed (Form 144)	Bought (Form 4)
Q4 2026	—	—	$3K

Every transaction, by company

Each Form 3, 4 and 5 transaction in plain words, newest first.

How these figures work

Values are shares times the price each filing states; grants, exercises and gifts usually state no price. Held after is what the filing reports was held once the transaction was done, directly or through the named holder.

LeonaBio LONA 10% owner · filings 2026 to 2026 · bought $3K

Date	Transaction	Shares	Price	Value	Held after	Source
Oct 26, 2026	Open-market or private purchase	+3,149,470	$0.00	$3K	3,149,470 See note	Filing · EDGAR
Oct 26, 2026	Open-market or private purchase Warrant	−5,502,402	$3,149.47	$17.3B	0 See note	Filing · EDGAR

All 2 Forms 3, 4, 5 and 144

Filed	Form	Company	Links
Oct 28, 2026	Form 4	LeonaBio LONA	Filing · EDGAR
Sep 3, 2026	Form 3	LeonaBio LONA	Filing · EDGAR

Every figure is as filed with the SEC on Forms 3, 4, 5 and 144. Holdings are the amounts reported after each person's latest filing at each company and can be out of date. Matching a Form 144 notice to Form 4 sales is SEC Tracker's inference from owner, company, dates and share counts, not something the filings state. Not investment advice. Not affiliated with the U.S. SEC.