SEC Filings for LIXTE BIOTECHNOLOGY HOLDINGS, INC. (LIXT)

Last updated: 2026-03-20 21:07 UTC | Total filings: 493

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Form Filing Date Description Link
8-K March 20, 2026 8-K View Document
8-K March 10, 2026 8-K View Document
8-K Feb. 18, 2026 8-K View Document
8-K Dec. 31, 2025 8-K View Document
4 Dec. 29, 2025 4 View Document
4 Dec. 29, 2025 4 View Document
8-K Dec. 23, 2025 8-K View Document
8-K Dec. 22, 2025 8-K View Document
424B5 Dec. 19, 2025 424B5 View Document
8-K Dec. 11, 2025 8-K View Document
25-NSE/A Nov. 28, 2025 - View Document
8-K Nov. 25, 2025 8-K View Document
10-Q Nov. 12, 2025 10-Q View Document
DEFA14A Oct. 28, 2025 DEFA14A View Document
DEF 14A Oct. 27, 2025 DEF 14A View Document
PRE 14A Oct. 16, 2025 PRE 14A View Document
8-K Sept. 11, 2025 8-K View Document
3 Sept. 10, 2025 - View Document
3 Sept. 4, 2025 - View Document
4 Sept. 4, 2025 - View Document
3 Sept. 4, 2025 - View Document
8-K Sept. 4, 2025 8-K View Document
8-K Aug. 19, 2025 8-K View Document
4 Aug. 18, 2025 4 View Document
4 Aug. 18, 2025 4 View Document
8-K Aug. 14, 2025 8-K View Document
UPLOAD Aug. 7, 2025 - View Document
10-Q Aug. 7, 2025 10-Q View Document
CORRESP July 24, 2025 - View Document
8-K July 21, 2025 8-K View Document
3 July 21, 2025 - View Document
3 July 21, 2025 - View Document
8-K July 16, 2025 8-K View Document
UPLOAD July 16, 2025 - View Document
EFFECT July 15, 2025 - View Document
CORRESP July 14, 2025 - View Document
8-K July 11, 2025 8-K View Document
S-1/A July 10, 2025 S-1/A View Document
4 July 9, 2025 - View Document
4 July 9, 2025 - View Document
424B5 July 8, 2025 424B5 View Document
8-K July 8, 2025 8-K View Document
4 July 8, 2025 - View Document
4 July 8, 2025 - View Document
4 July 8, 2025 - View Document
8-K July 3, 2025 8-K View Document
CORRESP June 26, 2025 - View Document
CORRESP June 24, 2025 - View Document
CORRESP June 24, 2025 - View Document
S-1/A June 24, 2025 S-1/A View Document
3 June 18, 2025 - View Document
S-1 June 18, 2025 - View Document
8-K June 17, 2025 8-K View Document
8-K May 20, 2025 8-K View Document
10-Q May 12, 2025 10-Q View Document
UPLOAD May 7, 2025 - View Document
DRS May 2, 2025 - View Document
8-K April 18, 2025 - View Document
424B4 April 11, 2025 - View Document
EFFECT April 10, 2025 - View Document
S-1/A April 9, 2025 - View Document
CORRESP April 9, 2025 - View Document
UPLOAD April 8, 2025 - View Document
S-1 April 4, 2025 - View Document
4 April 2, 2025 - View Document
4 April 2, 2025 - View Document
4 April 2, 2025 - View Document
4 April 2, 2025 - View Document
8-K March 31, 2025 - View Document
8-K March 27, 2025 - View Document
10-K March 24, 2025 - View Document
8-K March 14, 2025 - View Document
8-K March 11, 2025 - View Document
8-K March 11, 2025 - View Document
8-K Feb. 25, 2025 - View Document
8-K Feb. 21, 2025 - View Document
SCHEDULE 13G Feb. 18, 2025 - View Document
SCHEDULE 13G/A Feb. 18, 2025 - View Document
8-K Feb. 13, 2025 - View Document
SCHEDULE 13G Feb. 13, 2025 - View Document
424B5 Feb. 12, 2025 - View Document
RW Feb. 10, 2025 - View Document
4 Jan. 22, 2025 - View Document
4 Jan. 22, 2025 - View Document
4 Jan. 22, 2025 - View Document
4 Jan. 22, 2025 - View Document
424B5 Jan. 10, 2025 - View Document
8-K Jan. 6, 2025 - View Document
8-K Dec. 27, 2024 - View Document
8-K Dec. 20, 2024 - View Document
8-K Dec. 2, 2024 - View Document
10-Q Nov. 12, 2024 - View Document
S-1/A Nov. 5, 2024 - View Document
DEFA14A Nov. 5, 2024 - View Document
DEF 14A Nov. 5, 2024 - View Document
S-1/A Nov. 1, 2024 - View Document
4 Oct. 29, 2024 - View Document
4 Oct. 29, 2024 - View Document
4 Oct. 29, 2024 - View Document
4 Oct. 29, 2024 - View Document
8-K Oct. 23, 2024 - View Document
PRE 14A Oct. 23, 2024 - View Document
S-1 Oct. 23, 2024 - View Document
8-K Sept. 5, 2024 - View Document
8-K Aug. 26, 2024 - View Document
8-K Aug. 23, 2024 - View Document
8-K Aug. 19, 2024 - View Document
10-Q Aug. 8, 2024 - View Document
3 Aug. 1, 2024 - View Document
8-K July 12, 2024 - View Document
8-K July 11, 2024 - View Document
4 July 5, 2024 - View Document
4 July 2, 2024 - View Document
4 July 2, 2024 - View Document
4 July 2, 2024 - View Document
8-K June 14, 2024 - View Document
8-K June 14, 2024 - View Document
8-K June 5, 2024 - View Document
8-K May 29, 2024 - View Document
8-K May 20, 2024 - View Document
8-K May 9, 2024 - View Document
10-Q May 9, 2024 - View Document
424B5 May 3, 2024 - View Document
424B5 May 3, 2024 - View Document
EFFECT May 2, 2024 - View Document
S-3/A April 30, 2024 - View Document
CORRESP April 30, 2024 - View Document
UPLOAD April 29, 2024 - View Document
S-3 April 23, 2024 - View Document
8-K March 28, 2024 - View Document
8-K March 22, 2024 - View Document
10-K March 19, 2024 - View Document
8-K Feb. 27, 2024 - View Document
8-K Feb. 26, 2024 - View Document
8-K Jan. 30, 2024 - View Document
8-K Nov. 28, 2023 - View Document
8-K Nov. 13, 2023 - View Document
10-Q Nov. 9, 2023 - View Document
8-K Oct. 17, 2023 - View Document
4 Oct. 16, 2023 - View Document
DEF 14A Oct. 10, 2023 - View Document
DEFA14A Oct. 10, 2023 - View Document
4/A Oct. 5, 2023 - View Document
4 Oct. 5, 2023 - View Document
8-K Oct. 5, 2023 - View Document
4 Oct. 4, 2023 - View Document
PRE 14A Sept. 29, 2023 - View Document
4 Sept. 27, 2023 - View Document
8-K Sept. 27, 2023 - View Document
8-K Sept. 20, 2023 - View Document
EFFECT Aug. 21, 2023 - View Document
CORRESP Aug. 18, 2023 - View Document
UPLOAD Aug. 15, 2023 - View Document
S-3 Aug. 11, 2023 - View Document
10-Q Aug. 9, 2023 - View Document
D Aug. 1, 2023 - View Document
8-K July 21, 2023 - View Document
424B5 July 20, 2023 - View Document
8-K July 20, 2023 - View Document
4 July 7, 2023 - View Document
4 July 7, 2023 - View Document
4 July 7, 2023 - View Document
4 July 7, 2023 - View Document
8-K June 26, 2023 - View Document
8-K June 6, 2023 - View Document
8-K May 30, 2023 - View Document
424B5 May 10, 2023 - View Document
10-Q May 10, 2023 - View Document
8-K May 10, 2023 - View Document
8-K April 25, 2023 - View Document
DEF 14A April 11, 2023 - View Document
8-K April 5, 2023 - View Document
10-K March 29, 2023 - View Document
PRE 14A March 24, 2023 - View Document
8-K Feb. 15, 2023 - View Document
8-K Feb. 10, 2023 - View Document
4/A Jan. 5, 2023 - View Document
4 Jan. 4, 2023 - View Document
8-K Dec. 23, 2022 - View Document
S-8 Dec. 19, 2022 - View Document
4 Dec. 16, 2022 - View Document
4 Dec. 13, 2022 - View Document
4 Dec. 13, 2022 - View Document
8-K Dec. 6, 2022 - View Document
8-K Dec. 2, 2022 - View Document
4 Nov. 23, 2022 - View Document
4 Nov. 22, 2022 - View Document
4 Nov. 21, 2022 - View Document
3 Nov. 21, 2022 - View Document
4 Nov. 21, 2022 - View Document
4 Nov. 15, 2022 - View Document
8-K Nov. 10, 2022 - View Document
4 Nov. 9, 2022 - View Document
4 Nov. 9, 2022 - View Document
4 Nov. 9, 2022 - View Document
10-Q Nov. 8, 2022 - View Document
8-K Oct. 18, 2022 - View Document
8-K Oct. 11, 2022 - View Document
DEFA14A Aug. 26, 2022 - View Document
DEF 14A Aug. 26, 2022 - View Document
PRE 14A Aug. 16, 2022 - View Document
10-Q Aug. 10, 2022 - View Document
4 Aug. 3, 2022 - View Document
4 Aug. 3, 2022 - View Document
4 Aug. 3, 2022 - View Document
4 Aug. 3, 2022 - View Document
3 July 28, 2022 - View Document
3 July 18, 2022 - View Document
4 July 18, 2022 - View Document
8-K June 24, 2022 - View Document
8-K June 23, 2022 - View Document
8-K June 17, 2022 - View Document
8-K May 13, 2022 - View Document
10-Q May 11, 2022 - View Document
8-K April 15, 2022 - View Document
424B5 April 14, 2022 - View Document
SC 13G April 7, 2022 - View Document
SC 13G/A April 7, 2022 - View Document
3 April 6, 2022 - View Document
4 April 6, 2022 - View Document
8-K March 23, 2022 - View Document
10-K March 21, 2022 - View Document
5 Feb. 14, 2022 - View Document
SC 13G/A Jan. 4, 2022 SABBY 13G-A LIXT 1.03.22 View Document
10-Q Nov. 10, 2021 - View Document
8-K Oct. 13, 2021 - View Document
424B5 Sept. 20, 2021 - View Document
8-K Sept. 20, 2021 - View Document
10-Q Aug. 10, 2021 - View Document
8-K July 9, 2021 - View Document
4 July 2, 2021 - View Document
4 July 2, 2021 - View Document
4 July 2, 2021 - View Document
4 July 2, 2021 - View Document
4 July 2, 2021 - View Document
8-K June 3, 2021 - View Document
DEFA14A May 25, 2021 - View Document
DEF 14A May 25, 2021 - View Document
3 May 14, 2021 - View Document
8-K May 14, 2021 - View Document
PRE 14A May 13, 2021 - View Document
10-Q May 12, 2021 - View Document
4 April 26, 2021 - View Document
4 April 26, 2021 - View Document
4 April 26, 2021 - View Document
S-8 April 21, 2021 - View Document
4 April 15, 2021 - View Document
8-K April 13, 2021 - View Document
10-K March 26, 2021 - View Document
SC 13G March 3, 2021 SABBY 13G LIXT 3.03.21 View Document
8-K March 2, 2021 - View Document
424B5 March 1, 2021 - View Document
EFFECT Feb. 5, 2021 - View Document
CORRESP Feb. 3, 2021 - View Document
UPLOAD Feb. 2, 2021 - View Document
S-3 Jan. 26, 2021 - View Document
8-K Jan. 22, 2021 - View Document
4 Jan. 14, 2021 - View Document
4 Jan. 14, 2021 - View Document
4 Jan. 14, 2021 - View Document
4 Jan. 14, 2021 - View Document
4 Jan. 5, 2021 - View Document
4 Jan. 4, 2021 - View Document
SC 13G/A Dec. 17, 2020 - View Document
SC 13G/A Dec. 17, 2020 - View Document
SC 13G/A Dec. 17, 2020 - View Document
SC 13D/A Dec. 17, 2020 - View Document
SC 13G/A Dec. 17, 2020 - View Document
4 Dec. 9, 2020 - View Document
4 Dec. 7, 2020 - View Document
4 Dec. 4, 2020 - View Document
4 Dec. 3, 2020 - View Document
4 Dec. 3, 2020 - View Document
4 Dec. 3, 2020 - View Document
4 Dec. 2, 2020 - View Document
8-K Dec. 2, 2020 - View Document
424B4 Nov. 27, 2020 - View Document
8-K Nov. 27, 2020 - View Document
EFFECT Nov. 24, 2020 - View Document
CORRESP Nov. 19, 2020 - View Document
CORRESP Nov. 19, 2020 - View Document
CERT Nov. 18, 2020 8A CERT View Document
8-A12B Nov. 17, 2020 - View Document
CORRESP Nov. 16, 2020 - View Document
S-1/A Nov. 16, 2020 - View Document
CORRESP Nov. 16, 2020 - View Document
10-Q Nov. 10, 2020 - View Document
S-1/A Nov. 2, 2020 - View Document
S-1/A Oct. 13, 2020 - View Document
UPLOAD Sept. 11, 2020 - View Document
S-1 Sept. 3, 2020 - View Document
DEF 14C Aug. 31, 2020 - View Document
3 Aug. 20, 2020 - View Document
8-K Aug. 18, 2020 - View Document
PRE 14C Aug. 11, 2020 - View Document
10-Q Aug. 10, 2020 - View Document
8-K July 17, 2020 - View Document
8-K July 17, 2020 - View Document
10-Q May 11, 2020 - View Document
10-K March 25, 2020 - View Document
10-Q Nov. 8, 2019 - View Document
CT ORDER Sept. 19, 2019 - View Document
10-Q Aug. 6, 2019 - View Document
8-K Aug. 6, 2019 - View Document
10-Q May 9, 2019 - View Document
10-K March 25, 2019 - View Document
D Dec. 12, 2018 - View Document
3 Dec. 11, 2018 PRIMARY DOCUMENT View Document
4 Dec. 11, 2018 PRIMARY DOCUMENT View Document
4 Dec. 11, 2018 PRIMARY DOCUMENT View Document
4 Dec. 11, 2018 PRIMARY DOCUMENT View Document
4 Dec. 11, 2018 PRIMARY DOCUMENT View Document
8-K Dec. 5, 2018 - View Document
10-Q Nov. 8, 2018 - View Document
8-K Nov. 7, 2018 - View Document
CT ORDER Sept. 17, 2018 - View Document
8-K Aug. 23, 2018 - View Document
3 Aug. 14, 2018 PRIMARY DOCUMENT View Document
3 Aug. 14, 2018 PRIMARY DOCUMENT View Document
8-K Aug. 9, 2018 - View Document
10-Q Aug. 2, 2018 - View Document
10-Q April 27, 2018 - View Document
10-K March 23, 2018 - View Document
10-Q Nov. 9, 2017 - View Document
10-Q Aug. 4, 2017 - View Document
10-Q May 10, 2017 - View Document
SC 13G April 26, 2017 - View Document
3 April 17, 2017 PRIMARY DOCUMENT View Document
SC 13G April 13, 2017 - View Document
8-K April 10, 2017 - View Document
10-K March 29, 2017 - View Document
8-K Feb. 28, 2017 - View Document
4 Jan. 12, 2017 - View Document
SC 13G/A Jan. 12, 2017 - View Document
8-K Dec. 29, 2016 - View Document
8-K Nov. 28, 2016 - View Document
10-Q Nov. 4, 2016 - View Document
10-Q Aug. 10, 2016 - View Document
4 June 7, 2016 PRIMARY DOCUMENT View Document
3 June 7, 2016 PRIMARY DOCUMENT View Document
8-K May 17, 2016 - View Document
10-Q May 6, 2016 - View Document
10-K March 28, 2016 - View Document
4 Feb. 19, 2016 - View Document
4 Feb. 4, 2016 - View Document
8-K Feb. 3, 2016 - View Document
8-K Jan. 26, 2016 - View Document
SC 13G/A Jan. 22, 2016 - View Document
4 Jan. 22, 2016 - View Document
8-K Dec. 30, 2015 - View Document
8-K Nov. 10, 2015 - View Document
10-Q Nov. 10, 2015 - View Document
8-K Sept. 18, 2015 - View Document
SC 13G Sept. 4, 2015 - View Document
3 Sept. 3, 2015 - View Document
3 Sept. 3, 2015 - View Document
10-Q Aug. 7, 2015 - View Document
SC 13D Aug. 6, 2015 - View Document
4 Aug. 5, 2015 - View Document
SC 13G/A June 5, 2015 - View Document
10-Q May 13, 2015 - View Document
10-K March 27, 2015 - View Document
4 March 19, 2015 - View Document
4 March 19, 2015 - View Document
8-K March 18, 2015 - View Document
8-K March 4, 2015 - View Document
8-K Jan. 23, 2015 - View Document
10-Q Nov. 12, 2014 QUARTERLY REPORT View Document
10-Q Aug. 8, 2014 QUARTERLY REPORT View Document
SC 13G May 21, 2014 SCHEDULE 13G View Document
3 May 21, 2014 OWNERSHIP DOCUMENT View Document
4 May 14, 2014 OWNERSHIP DOCUMENT View Document
4 May 14, 2014 OWNERSHIP DOCUMENT View Document
SC 13G/A May 12, 2014 - View Document
SC 13G/A May 12, 2014 - View Document
10-Q May 9, 2014 QUARTERLY REPORT View Document
8-K April 18, 2014 FORM 8-K View Document
10-K March 21, 2014 10-K View Document
UPLOAD Nov. 13, 2013 - View Document
10-Q Nov. 7, 2013 QUARTERLY REPORT View Document
CORRESP Oct. 8, 2013 - View Document
CORRESP Sept. 30, 2013 - View Document
UPLOAD Sept. 16, 2013 - View Document
10-Q Aug. 5, 2013 FORM 10-Q View Document
10-Q May 9, 2013 FORM 10-Q View Document
10-K March 15, 2013 10-K View Document
SC 13G/A March 14, 2013 SC 13G/A View Document
10-Q Nov. 13, 2012 QUARTERLY REPORT View Document
8-K Sept. 24, 2012 CURRENT REPORT View Document
SC 13G Aug. 16, 2012 FORM SC 13G View Document
SC 13G/A Aug. 15, 2012 FORM SC 13G/A View Document
10-Q Aug. 10, 2012 FORM 10-Q View Document
10-Q May 10, 2012 FORM 10-Q View Document
10-K March 29, 2012 FORM 10-K View Document
10-Q Nov. 10, 2011 10-Q View Document
10-Q Aug. 12, 2011 QUARTERLY REPORT View Document
3 May 10, 2011 PRIMARY DOCUMENT View Document
10-Q May 9, 2011 QUARTERLY REPORT View Document
8-K May 5, 2011 - View Document
10-K March 28, 2011 - View Document
8-K Feb. 17, 2011 - View Document
8-K Nov. 5, 2010 - View Document
10-Q Nov. 4, 2010 - View Document
8-K Sept. 23, 2010 - View Document
10-Q Aug. 10, 2010 - View Document
10-Q May 4, 2010 - View Document
8-K April 21, 2010 - View Document
10-K March 29, 2010 - View Document
8-K Feb. 23, 2010 - View Document
SC 13G Feb. 1, 2010 - View Document
3 Feb. 1, 2010 PRIMARY DOCUMENT View Document
3 Feb. 1, 2010 PRIMARY DOCUMENT View Document
D Jan. 27, 2010 - View Document
8-K Jan. 22, 2010 - View Document
10-Q Nov. 12, 2009 - View Document
8-K Nov. 6, 2009 - View Document
10-Q Aug. 12, 2009 - View Document
8-K Aug. 12, 2009 - View Document
10-Q May 13, 2009 - View Document
8-K April 24, 2009 - View Document
D/A April 13, 2009 - View Document
10-K March 31, 2009 - View Document
REGDEX/A March 6, 2009 AUTO-GENERATED PAPER DOCUMENT View Document
REGDEX/A March 6, 2009 AUTO-GENERATED PAPER DOCUMENT View Document
8-K March 3, 2009 - View Document
REGDEX Feb. 18, 2009 AUTO-GENERATED PAPER DOCUMENT View Document
8-K Feb. 17, 2009 - View Document
UPLOAD Jan. 8, 2009 - View Document
8-K/A Jan. 7, 2009 - View Document
UPLOAD Dec. 22, 2008 - View Document
8-K Dec. 22, 2008 - View Document
10-Q Nov. 12, 2008 - View Document
8-K Oct. 9, 2008 - View Document
3 Oct. 8, 2008 PRIMARY DOCUMENT View Document
8-K Sept. 26, 2008 - View Document
10-Q Aug. 12, 2008 - View Document
10-Q May 14, 2008 - View Document
10KSB March 31, 2008 - View Document
REGDEX Jan. 4, 2008 AUTO-GENERATED PAPER DOCUMENT View Document
8-K Dec. 18, 2007 - View Document
10QSB Nov. 14, 2007 - View Document
3 Sept. 28, 2007 PRIMARY DOCUMENT View Document
10KSB/A Aug. 21, 2007 - View Document
10QSB Aug. 14, 2007 - View Document
10QSB May 21, 2007 - View Document
10KSB/A May 17, 2007 - View Document
424B3 May 17, 2007 - View Document
NT 10-Q May 16, 2007 - View Document
CORRESP May 14, 2007 - View Document
CORRESP May 14, 2007 - View Document
CORRESP May 14, 2007 - View Document
EFFECT May 14, 2007 - View Document
SB-2/A May 8, 2007 - View Document
8-K May 8, 2007 - View Document
UPLOAD May 3, 2007 - View Document
10KSB/A April 23, 2007 - View Document
SB-2/A April 19, 2007 - View Document
UPLOAD April 3, 2007 - View Document
10KSB March 29, 2007 - View Document
SB-2/A March 13, 2007 - View Document
UPLOAD Feb. 13, 2007 - View Document
8-K Feb. 9, 2007 - View Document
SB-2/A Jan. 23, 2007 - View Document
8-K Jan. 11, 2007 - View Document
UPLOAD Dec. 15, 2006 - View Document
SB-2/A Dec. 1, 2006 - View Document
10QSB Nov. 14, 2006 - View Document
UPLOAD Oct. 4, 2006 - View Document
DEF 14C Sept. 19, 2006 - View Document
SB-2 Sept. 8, 2006 - View Document
PRE 14C Sept. 1, 2006 - View Document
10QSB Aug. 18, 2006 - View Document
REGDEX/A Aug. 17, 2006 AUTO-GENERATED PAPER DOCUMENT View Document
NT 10-Q Aug. 14, 2006 - View Document
8-K Aug. 1, 2006 - View Document
3 July 21, 2006 PRIMARY DOCUMENT View Document
3 July 21, 2006 PRIMARY DOCUMENT View Document
8-K July 7, 2006 - View Document
SC 14F1 June 13, 2006 - View Document
8-K June 8, 2006 - View Document
10QSB May 15, 2006 - View Document
10KSB March 15, 2006 - View Document
3 Jan. 12, 2006 - View Document
SC 13D Jan. 12, 2006 - View Document
SC 13D Jan. 10, 2006 - View Document
SC 13D Nov. 9, 2005 - View Document
3 Nov. 9, 2005 - View Document
10QSB Nov. 9, 2005 - View Document
3 Nov. 7, 2005 - View Document
SC 13D Nov. 7, 2005 - View Document
10SB12G/A Aug. 29, 2005 - View Document
UPLOAD Aug. 9, 2005 - View Document
10SB12G Aug. 3, 2005 - View Document