LeonaBio Inc.

Last updated September 27, 2026

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Organization details

Legal name: LeonaBio Inc.
Former names: Athira Pharma, Inc. M3 Biotechnology, Inc.
Ownership: Public
Status: Active
Sector (GICS): Health Care
SIC code: 2836 — Biological Products, (No Diagnostic Substances)
Headquarters city: Bothell
Headquarters state / province: Washington
Headquarters country: United States
Fiscal year end: December
Ticker symbol: LONA
Primary stock exchange: Nasdaq

Identifiers

SEC CIK: 0001620463
EIN: 45-3368487

Board of directors

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Barbara Kosacz · Director
Since 2023
Fred Callori · Director
Since 2026
Grant Pickering · Director
Since 2023
James A. Johnson · Director
Since 2023
John M. Fluke Jr. · Director
Since 2023
Joseph Edelman · Director Overboarded
Since 2023
Kelly A. Romano · Director
Since 2023
Mark James Litton · Director · PRESIDENT and CEO
Since 2023
Michael A. Panzara · Director
Since 2023
Natalie C. Holles · Director
Since 2026
Peter B. Silverman · Director
Since 2026

Chief executives

Mark James Litton · Chief Executive Officer

Dates unknown

Director election results

Annual meeting of June 22, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

Board connections

5 of this board's directors also sit on 12 other boards. 9 are in the same sector.

Shared director Other board Same sector

Adagio Medical Holdings Inc Same sector
via Joseph Edelman
Aura Biosciences Inc. Same sector
via Natalie C. Holles
Dorman Products Inc.
via Kelly A. Romano
Freenome Inc. Same sector
via Joseph Edelman
Immatics N.V. Same sector
via Joseph Edelman
Kardigan Inc. Same sector
via Joseph Edelman
MeiraGTx Holdings plc Same sector
via Joseph Edelman
Nautilus Biotechnology Inc.
via Joseph Edelman
Solid Biosciences Inc. Same sector
via Joseph Edelman
UGI Corporation
via Kelly A. Romano
Vaxcyte Inc. Same sector
via Grant Pickering
Yarrow Bioscience Inc. Same sector
via Peter B. Silverman

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Bought, last 12 months: $0; 0 purchases by 0 insiders
Sold, last 12 months: $99,418; 10 sales by 5 insiders

Date	Insider	Transaction	Shares	Price	Value
Oct 26, 2026	PERCEPTIVE ADVISORS LLC Director, 10% owner	Option exercise	+776,648	$0.00	$777
Oct 26, 2026	Portman David J. 10% owner	Open-market purchase	+3,149,470	$3,149.47	$9,919,161,281
Mar 4, 2026	Mark James Litton Director, Officer (PRESIDENT and CEO)	Open-market sale	−5,156	$5.37	$27,688
Mar 4, 2026	Renninger Robert Officer (CHIEF FINANCIAL OFFICER)	Open-market sale	−906	$5.37	$4,865
Mar 4, 2026	Worthington Mark Officer (GENERAL COUNSEL and CCO)	Open-market sale	−1,328	$5.37	$7,131
Mar 4, 2026	CHURCH KEVIN Officer (CHIEF SCIENTIFIC OFFICER)	Open-market sale	−1,359	$5.37	$7,298
Mar 4, 2026	San Martin Javier Officer (CHIEF MEDICAL OFFICER)	Open-market sale	−1,720	$5.37	$9,236
Mar 3, 2026	Mark James Litton Director, Officer (PRESIDENT and CEO)	Option exercise	+22,254	—	—
Mar 3, 2026	Renninger Robert Officer (CHIEF FINANCIAL OFFICER)	Option exercise	+3,900	—	—
Mar 3, 2026	Worthington Mark Officer (GENERAL COUNSEL and CCO)	Option exercise	+5,726	—	—
Mar 3, 2026	CHURCH KEVIN Officer (CHIEF SCIENTIFIC OFFICER)	Option exercise	+5,856	—	—
Mar 3, 2026	San Martin Javier Officer (CHIEF MEDICAL OFFICER)	Option exercise	+7,418	—	—
Jan 2, 2026	San Martin Javier Officer (CHIEF MEDICAL OFFICER)	Open-market sale	−1,644	$6.88	$11,311
Jan 2, 2026	Mark James Litton Director, Officer (President and CEO)	Open-market sale	−2,586	$6.88	$17,792
Jan 2, 2026	Worthington Mark Officer (General Counsel and CCO)	Open-market sale	−876	$6.88	$6,027

Peers

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Questions about LeonaBio Inc.

Who is the CEO of LeonaBio Inc.?

Mark James Litton is LeonaBio Inc.'s Chief Executive Officer.

How many directors are on LeonaBio Inc.'s board?

LeonaBio Inc.'s board has 11 directors: Barbara Kosacz, Fred Callori, Grant Pickering, James A. Johnson, John M. Fluke Jr., Joseph Edelman, Kelly A. Romano, Mark James Litton, Michael A. Panzara, Natalie C. Holles and 1 other.

Are LeonaBio Inc. insiders buying or selling shares?

Over the last 12 months, LeonaBio Inc. insiders made no open-market purchases and sold $99,418 of shares in 10 sales on the open market, as reported to the SEC on Forms 4 and 5.

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