SEC Filings for LeonaBio, Inc. (LONA)

Last updated: 2026-03-26 23:11 UTC | Total filings: 404

Browse the latest SEC filings and forms submitted by LeonaBio, Inc. (LONA). Access annual reports, quarterly statements, and other official disclosures.

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Form Filing Date Description Link
8-K March 26, 2026 8-K View Document
8-K March 19, 2026 8-K View Document
DEFR14A March 10, 2026 DEFR14A View Document
4 March 5, 2026 - View Document
4 March 5, 2026 - View Document
4 March 5, 2026 - View Document
4 March 5, 2026 - View Document
4 March 5, 2026 - View Document
144 March 4, 2026 - View Document
DEF 14A Feb. 23, 2026 DEF 14A View Document
SCHEDULE 13G/A Feb. 6, 2026 - View Document
PRE 14A Feb. 4, 2026 PRE 14A View Document
S-3 Jan. 20, 2026 S-3 View Document
S-3 Jan. 20, 2026 S-3 View Document
SCHEDULE 13D/A Jan. 16, 2026 - View Document
8-K Jan. 9, 2026 8-K View Document
SCHEDULE 13G/A Jan. 8, 2026 - View Document
4 Jan. 5, 2026 - View Document
4 Jan. 5, 2026 - View Document
4 Jan. 5, 2026 - View Document
4 Jan. 5, 2026 - View Document
4 Jan. 5, 2026 - View Document
4 Dec. 29, 2025 - View Document
4 Dec. 29, 2025 - View Document
4 Dec. 29, 2025 - View Document
4 Dec. 29, 2025 - View Document
4 Dec. 29, 2025 - View Document
SCHEDULE 13D/A Dec. 23, 2025 - View Document
4 Dec. 23, 2025 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES View Document
SCHEDULE 13G Dec. 23, 2025 - View Document
SCHEDULE 13D/A Dec. 22, 2025 - View Document
8-K Dec. 18, 2025 8-K View Document
SCHEDULE 13G/A Dec. 18, 2025 - View Document
8-K/A Dec. 18, 2025 8-K/A View Document
SCHEDULE 13G Nov. 14, 2025 - View Document
8-K Nov. 6, 2025 8-K View Document
10-Q Nov. 6, 2025 10-Q View Document
SCHEDULE 13G/A Oct. 10, 2025 - View Document
8-K Oct. 3, 2025 8-K View Document
8-K Sept. 11, 2025 8-K View Document
10-Q Aug. 7, 2025 10-Q View Document
8-K Aug. 7, 2025 8-K View Document
4 July 2, 2025 - View Document
4 July 2, 2025 - View Document
4 July 2, 2025 - View Document
4 July 2, 2025 - View Document
4 July 2, 2025 - View Document
144 July 1, 2025 - View Document
144 July 1, 2025 - View Document
144 July 1, 2025 - View Document
144 July 1, 2025 - View Document
4 June 3, 2025 - View Document
4 June 3, 2025 - View Document
4 June 3, 2025 - View Document
4 June 3, 2025 - View Document
4 June 3, 2025 - View Document
4 June 3, 2025 - View Document
4 June 3, 2025 - View Document
8-K June 2, 2025 8-K View Document
10-Q May 9, 2025 10-Q View Document
8-K May 9, 2025 8-K View Document
SCHEDULE 13G April 16, 2025 - View Document
8-K April 16, 2025 8-K View Document
DEFA14A April 14, 2025 DEFA14A View Document
ARS April 14, 2025 ARS View Document
DEF 14A April 14, 2025 DEF 14A View Document
PRE 14A April 4, 2025 PRE 14A View Document
4/A March 12, 2025 - View Document
4 March 4, 2025 - View Document
4 March 4, 2025 - View Document
4 March 4, 2025 - View Document
4 March 4, 2025 - View Document
4 March 4, 2025 - View Document
S-8 Feb. 27, 2025 S-8 View Document
10-K Feb. 27, 2025 10-K View Document
8-K Feb. 27, 2025 8-K View Document
SCHEDULE 13G/A Feb. 14, 2025 - View Document
SCHEDULE 13G/A Feb. 14, 2025 - View Document
4 Jan. 3, 2025 - View Document
4 Jan. 3, 2025 - View Document
4 Jan. 3, 2025 - View Document
4 Jan. 3, 2025 - View Document
4 Jan. 3, 2025 - View Document
144 Jan. 2, 2025 - View Document
144 Jan. 2, 2025 - View Document
144 Jan. 2, 2025 - View Document
144 Jan. 2, 2025 - View Document
SC 13G/A Nov. 14, 2024 SC 13G/A View Document
8-K Nov. 7, 2024 8-K View Document
10-Q Nov. 7, 2024 10-Q View Document
SC 13G Nov. 7, 2024 - View Document
SC 13D/A Oct. 31, 2024 SC 13D/A View Document
EFFECT Oct. 28, 2024 - View Document
UPLOAD Oct. 24, 2024 - View Document
CORRESP Oct. 24, 2024 - View Document
S-3 Oct. 21, 2024 S-3 View Document
8-K Oct. 18, 2024 8-K View Document
8-K Oct. 7, 2024 8-K View Document
4 Oct. 3, 2024 - View Document
4/A Oct. 3, 2024 - View Document
4 Oct. 3, 2024 - View Document
4 Oct. 3, 2024 - View Document
4 Oct. 3, 2024 - View Document
4 Oct. 3, 2024 - View Document
3 Oct. 3, 2024 - View Document
8-K Sept. 17, 2024 8-K View Document
144 Sept. 5, 2024 - View Document
4 Sept. 5, 2024 - View Document
4 Sept. 5, 2024 - View Document
4 Sept. 5, 2024 - View Document
4 Sept. 5, 2024 - View Document
4 Sept. 5, 2024 - View Document
8-K Sept. 3, 2024 8-K View Document
10-Q/A Aug. 9, 2024 10-Q/A View Document
10-Q Aug. 1, 2024 10-Q View Document
8-K Aug. 1, 2024 8-K View Document
4 June 25, 2024 - View Document
8-K May 29, 2024 8-K View Document
4 May 24, 2024 - View Document
4 May 24, 2024 - View Document
4 May 24, 2024 - View Document
4 May 24, 2024 - View Document
4 May 24, 2024 - View Document
4 May 24, 2024 - View Document
4 May 24, 2024 - View Document
8-K May 17, 2024 8-K View Document
10-Q May 15, 2024 10-Q View Document
8-K May 15, 2024 8-K View Document
3 April 16, 2024 - View Document
4 April 16, 2024 - View Document
DEF 14A April 9, 2024 DEF 14A View Document
ARS April 9, 2024 ARS View Document
DEFA14A April 9, 2024 DEFA14A View Document
PRE 14A March 28, 2024 PRE 14A View Document
10-K Feb. 22, 2024 10-K View Document
S-8 Feb. 22, 2024 S-8 View Document
8-K Feb. 22, 2024 8-K View Document
4/A Feb. 16, 2024 - View Document
4 Feb. 16, 2024 - View Document
4 Feb. 16, 2024 - View Document
4 Feb. 16, 2024 - View Document
4 Feb. 16, 2024 - View Document
4 Feb. 16, 2024 - View Document
4/A Feb. 16, 2024 - View Document
4/A Feb. 16, 2024 - View Document
4/A Feb. 16, 2024 - View Document
4/A Feb. 16, 2024 - View Document
SC 13G Feb. 14, 2024 SC 13G View Document
4 Jan. 8, 2024 FORM 4 SUBMISSION View Document
4 Jan. 8, 2024 FORM 4 SUBMISSION View Document
4 Jan. 8, 2024 FORM 4 SUBMISSION View Document
4 Jan. 8, 2024 FORM 4 SUBMISSION View Document
4 Jan. 8, 2024 FORM 4 SUBMISSION View Document
4 Jan. 8, 2024 FORM 4 SUBMISSION View Document
8-K Jan. 8, 2024 8-K View Document
4 Dec. 29, 2023 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES View Document
SC 13D/A Dec. 29, 2023 SC 13D/A View Document
10-Q Nov. 9, 2023 10-Q View Document
8-K Nov. 9, 2023 8-K View Document
8-K Aug. 10, 2023 8-K View Document
10-Q Aug. 10, 2023 10-Q View Document
SC 13G/A July 7, 2023 - View Document
4 June 9, 2023 FORM 4 SUBMISSION View Document
4 June 6, 2023 FORM 4 SUBMISSION View Document
4 June 6, 2023 FORM 4 SUBMISSION View Document
3 May 22, 2023 FORM 3 SUBMISSION View Document
4 May 22, 2023 FORM 4 SUBMISSION View Document
4 May 22, 2023 FORM 4 SUBMISSION View Document
4 May 22, 2023 FORM 4 SUBMISSION View Document
4 May 22, 2023 FORM 4 SUBMISSION View Document
4 May 22, 2023 FORM 4 SUBMISSION View Document
4 May 22, 2023 FORM 4 SUBMISSION View Document
4 May 22, 2023 FORM 4 SUBMISSION View Document
4 May 22, 2023 FORM 4 SUBMISSION View Document
8-K May 22, 2023 8-K View Document
10-Q May 11, 2023 10-Q View Document
8-K May 11, 2023 8-K View Document
SC 13G April 20, 2023 SCHEDULE 13G View Document
ARS April 5, 2023 ARS View Document
DEFA14A April 5, 2023 FORM DEFA14A View Document
DEF 14A April 5, 2023 DEF 14A View Document
4 March 31, 2023 FORM 4 SUBMISSION View Document
4 March 30, 2023 FORM 4 SUBMISSION View Document
4 March 27, 2023 FORM 4 SUBMISSION View Document
8-K March 23, 2023 8-K View Document
S-8 March 23, 2023 S-8 View Document
10-K March 23, 2023 10-K View Document
SC 13G/A Feb. 14, 2023 ATHIRA PHARMA, INC. View Document
SC 13G/A Feb. 1, 2023 - View Document
4 Jan. 31, 2023 FORM 4 SUBMISSION View Document
SC 13G/A Jan. 30, 2023 - View Document
4 Jan. 23, 2023 FORM 4 SUBMISSION View Document
4 Jan. 23, 2023 FORM 4 SUBMISSION View Document
4 Jan. 23, 2023 FORM 4 SUBMISSION View Document
4 Jan. 23, 2023 FORM 4 SUBMISSION View Document
4 Jan. 23, 2023 FORM 4 SUBMISSION View Document
8-K Jan. 6, 2023 8-K View Document
424B5 Jan. 6, 2023 424B5 View Document
4 Dec. 30, 2022 FORM 4 SUBMISSION View Document
4 Dec. 6, 2022 FORM 4 SUBMISSION View Document
8-K Nov. 18, 2022 8-K View Document
4 Nov. 17, 2022 FORM 4 SUBMISSION View Document
10-Q Nov. 10, 2022 10-Q View Document
8-K Nov. 10, 2022 8-K View Document
4 Oct. 31, 2022 FORM 4 SUBMISSION View Document
8-K Oct. 17, 2022 8-K View Document
4 Oct. 17, 2022 FORM 4 SUBMISSION View Document
8-K Aug. 15, 2022 8-K View Document
10-Q Aug. 15, 2022 10-Q View Document
SC 13D/A July 1, 2022 SC 13D/A View Document
4 July 1, 2022 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES View Document
4 June 30, 2022 FORM 4 SUBMISSION View Document
4 June 24, 2022 FORM 4 SUBMISSION View Document
4 June 24, 2022 FORM 4 SUBMISSION View Document
4 June 24, 2022 FORM 4 SUBMISSION View Document
4 June 24, 2022 FORM 4 SUBMISSION View Document
4 June 24, 2022 FORM 4 SUBMISSION View Document
4 June 24, 2022 FORM 4 SUBMISSION View Document
8-K June 22, 2022 8-K View Document
4 June 10, 2022 FORM 4 SUBMISSION View Document
4 May 27, 2022 FORM 4 SUBMISSION View Document
4 May 27, 2022 FORM 4 SUBMISSION View Document
4 May 27, 2022 FORM 4 SUBMISSION View Document
4 May 27, 2022 FORM 4 SUBMISSION View Document
4 May 27, 2022 FORM 4 SUBMISSION View Document
4 May 27, 2022 FORM 4 SUBMISSION View Document
4 May 27, 2022 FORM 4 SUBMISSION View Document
4 May 27, 2022 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES View Document
8-K May 24, 2022 8-K View Document
DEFA14A May 17, 2022 DEFA14A View Document
DEFA14A May 17, 2022 DEFA14A View Document
DFAN14A May 16, 2022 DFAN 14A View Document
10-Q May 12, 2022 10-Q View Document
8-K May 12, 2022 8-K View Document
DFAN14A May 12, 2022 DFAN 14A View Document
DEFA14A May 11, 2022 DEFA14A View Document
DEFA14A May 9, 2022 DEFA14A View Document
DEFA14A May 5, 2022 DEFA14A View Document
DFAN14A May 5, 2022 SCHEDULE 14A INFORMATION View Document
DEFA14A May 5, 2022 DEFA14A View Document
DEFA14A May 5, 2022 DEFA14A View Document
DFAN14A May 4, 2022 DFAN 14A View Document
DFAN14A May 2, 2022 SCHEDULE DFAN14A - DEFINITIVE ADDITIONAL MATERIALS View Document
DFAN14A April 27, 2022 SCHEDULE 14A INFORMATION View Document
DEFA14A April 26, 2022 DEFA14A View Document
DEFA14A April 26, 2022 DEFA14A View Document
DFAN14A April 25, 2022 SCHEDULE 14A INFORMATION View Document
DFAN14A April 22, 2022 SCHEDULE 14A INFORMATION View Document
DEFA14A April 20, 2022 DEFA14A View Document
DFAN14A April 13, 2022 SCHEDULE 14A INFORMATION View Document
4 April 12, 2022 FORM 4 SUBMISSION View Document
DEFC14A April 11, 2022 DEFC14A View Document
DEFA14A April 11, 2022 DEFA14A View Document
DEFA14A April 11, 2022 DEFA14A View Document
DFAN14A April 11, 2022 DFAN14A View Document
PREC14A April 8, 2022 PREC14A View Document
UPLOAD April 6, 2022 - View Document
DEFA14A April 5, 2022 DEFA14A View Document
DEFC14A April 5, 2022 DEFC14A View Document
4 April 1, 2022 FORM 4 SUBMISSION View Document
PREC14A March 30, 2022 PREC14A View Document
DEFA14A March 30, 2022 DEFA14A View Document
DFAN14A March 30, 2022 DFAN14A View Document
DEFA14A March 28, 2022 DEFA14A View Document
S-8 March 28, 2022 S-8 View Document
10-K March 28, 2022 10-K View Document
CORRESP March 25, 2022 - View Document
PREC14A March 25, 2022 PREC14A View Document
8-K March 24, 2022 8-K View Document
4 March 21, 2022 FORM 4 SUBMISSION View Document
3 March 21, 2022 FORM 3 SUBMISSION View Document
3/A March 21, 2022 FORM 3/A SUBMISSION View Document
8-K March 21, 2022 8-K View Document
4 Feb. 18, 2022 FORM 4 SUBMISSION View Document
SC 13G/A Feb. 14, 2022 SC 13G/A View Document
SC 13G/A Feb. 14, 2022 SC 13G/A View Document
SC 13G/A Feb. 14, 2022 ATHIRA PHARMA, INC. View Document
SC 13G Feb. 4, 2022 - View Document
SC 13G Feb. 3, 2022 - View Document
3 Jan. 31, 2022 FORM 3 SUBMISSION View Document
4 Jan. 31, 2022 FORM 4 SUBMISSION View Document
4 Jan. 31, 2022 FORM 4 SUBMISSION View Document
8-K Jan. 31, 2022 8-K View Document
4 Jan. 20, 2022 FORM 4 SUBMISSION View Document
4 Jan. 20, 2022 FORM 4 SUBMISSION View Document
4 Jan. 20, 2022 FORM 4 SUBMISSION View Document
4 Jan. 20, 2022 FORM 4 SUBMISSION View Document
4 Jan. 20, 2022 FORM 4 SUBMISSION View Document
4 Jan. 6, 2022 FORM 4 SUBMISSION View Document
EFFECT Nov. 24, 2021 - View Document
UPLOAD Nov. 22, 2021 - View Document
CORRESP Nov. 22, 2021 - View Document
S-3 Nov. 15, 2021 S-3 View Document
8-K Nov. 10, 2021 8-K View Document
10-Q Nov. 10, 2021 10-Q View Document
4 Nov. 5, 2021 FORM 4 SUBMISSION View Document
4 Nov. 5, 2021 FORM 4 SUBMISSION View Document
8-K Oct. 21, 2021 8-K View Document
4 Aug. 19, 2021 FORM 4 SUBMISSION View Document
8-K Aug. 16, 2021 8-K View Document
10-Q Aug. 16, 2021 10-Q View Document
8-K Aug. 9, 2021 8-K View Document
4 July 21, 2021 FORM 4 SUBMISSION View Document
8-K June 21, 2021 8-K View Document
4 June 16, 2021 FORM 4 SUBMISSION View Document
3 June 14, 2021 FORM 3 SUBMISSION View Document
4 June 10, 2021 FORM 4 SUBMISSION View Document
4/A June 10, 2021 FORM 4/A SUBMISSION View Document
4 June 9, 2021 FORM 4 SUBMISSION View Document
4 June 1, 2021 FORM 4 SUBMISSION View Document
4 June 1, 2021 FORM 4 SUBMISSION View Document
4 June 1, 2021 FORM 4 SUBMISSION View Document
8-K June 1, 2021 8-K View Document
4 June 1, 2021 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES View Document
3 June 1, 2021 FORM 3 SUBMISSION View Document
4 June 1, 2021 FORM 4 SUBMISSION View Document
8-K May 13, 2021 8-K View Document
10-Q May 13, 2021 10-Q View Document
DEF 14A April 16, 2021 DEF 14A View Document
DEFA14A April 16, 2021 DEFA14A View Document
S-8 March 26, 2021 S-8 View Document
8-K March 25, 2021 8-K View Document
10-K March 25, 2021 10-K View Document
3 March 8, 2021 FORM 3 SUBMISSION View Document
8-K March 8, 2021 8-K View Document
4 March 8, 2021 FORM 4 SUBMISSION View Document
4 Feb. 22, 2021 FORM 4 SUBMISSION View Document
4 Feb. 22, 2021 FORM 4 SUBMISSION View Document
4 Feb. 22, 2021 FORM 4 SUBMISSION View Document
4 Feb. 22, 2021 FORM 4 SUBMISSION View Document
4 Feb. 22, 2021 FORM 4 SUBMISSION View Document
SC 13G/A Feb. 16, 2021 SC 13G/A View Document
SC 13G Feb. 16, 2021 SC 13G View Document
SC 13G/A Feb. 16, 2021 AMENDMENT NO. 1 View Document
SC 13G/A Feb. 12, 2021 - View Document
SC 13D Feb. 8, 2021 SC 13D View Document
4 Feb. 4, 2021 FORM 4 SUBMISSION View Document
4 Jan. 27, 2021 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES View Document
424B4 Jan. 21, 2021 424B4 View Document
EFFECT Jan. 20, 2021 - View Document
S-1 Jan. 19, 2021 S-1 View Document
CORRESP Jan. 15, 2021 - View Document
CORRESP Jan. 15, 2021 - View Document
8-K Jan. 11, 2021 8-K View Document
5 Jan. 8, 2021 FORM 5 SUBMISSION View Document
DRS Jan. 6, 2021 - View Document
UPLOAD Jan. 6, 2021 - View Document
3 Dec. 14, 2020 FORM 3 SUBMISSION View Document
8-K Dec. 14, 2020 8-K View Document
4 Dec. 14, 2020 FORM 4 SUBMISSION View Document
SC 13G Nov. 16, 2020 SC 13G View Document
10-Q Nov. 12, 2020 10-Q View Document
8-K Nov. 12, 2020 8-K View Document
SC 13G Sept. 28, 2020 ACQUISITION OF BENEFICIAL OWNERSHIP View Document
SC 13G Sept. 28, 2020 - View Document
4 Sept. 22, 2020 FORM 4 SUBMISSION View Document
4 Sept. 22, 2020 FORM 4 SUBMISSION View Document
4 Sept. 22, 2020 FORM 4 SUBMISSION View Document
4 Sept. 22, 2020 FORM 4 SUBMISSION View Document
4 Sept. 22, 2020 - View Document
3 Sept. 18, 2020 FORM 3 SUBMISSION View Document
S-8 Sept. 18, 2020 S-8 View Document
424B4 Sept. 18, 2020 424B4 View Document
3 Sept. 17, 2020 FORM 3 SUBMISSION View Document
3 Sept. 17, 2020 FORM 3 SUBMISSION View Document
3 Sept. 17, 2020 FORM 3 SUBMISSION View Document
3 Sept. 17, 2020 FORM 3 SUBMISSION View Document
3 Sept. 17, 2020 FORM 3 SUBMISSION View Document
EFFECT Sept. 17, 2020 - View Document
3 Sept. 17, 2020 FORM 3 SUBMISSION View Document
3 Sept. 17, 2020 - View Document
S-1MEF Sept. 17, 2020 S-1MEF View Document
SEC STAFF LETTER Sept. 17, 2020 - View Document
CORRESP Sept. 17, 2020 - View Document
S-1/A Sept. 17, 2020 S-1/A View Document
3 Sept. 17, 2020 FORM 3 SUBMISSION View Document
3 Sept. 17, 2020 FORM 3 SUBMISSION View Document
3 Sept. 17, 2020 FORM 3 SUBMISSION View Document
CERT Sept. 16, 2020 - View Document
UPLOAD Sept. 16, 2020 - View Document
CORRESP Sept. 14, 2020 - View Document
CORRESP Sept. 14, 2020 - View Document
CORRESP Sept. 14, 2020 - View Document
S-1/A Sept. 14, 2020 S-1/A View Document
UPLOAD Sept. 10, 2020 - View Document
S-1/A Sept. 9, 2020 S-1/A View Document
8-A12B Sept. 9, 2020 8-A12B View Document
SEC STAFF LETTER Sept. 4, 2020 - View Document
CORRESP Sept. 2, 2020 - View Document
S-1 Aug. 26, 2020 S-1 View Document
CORRESP Aug. 26, 2020 - View Document
UPLOAD Aug. 21, 2020 - View Document
DRSLTR July 24, 2020 - View Document
DRS July 24, 2020 - View Document
D June 12, 2020 - View Document
D/A Jan. 24, 2020 - View Document
D/A Sept. 19, 2019 - View Document
D/A Jan. 23, 2019 - View Document
D Dec. 20, 2018 - View Document
D/A Nov. 1, 2017 - View Document
D/A April 20, 2017 - View Document
D Nov. 20, 2015 - View Document
D/A Feb. 5, 2015 - View Document
D Oct. 3, 2014 - View Document