IRONSTONE PROPERTIES, INC. SEC EDGAR Filings (CIK 0000723269)

SEC EDGAR filings, ownership reports, and insider transactions for IRONSTONE PROPERTIES, INC..

Industry
Blank Checks (Office Of Real Estate & Construction)
Business address
909 Montgomery Street 3 Rd Floor, San Francisco, CA, 94133
State of incorporation
DE
Fiscal year end
31 December
Former names
IRONSTONE GROUP INC (to 08 Nov 2021)
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IRONSTONE PROPERTIES, INC. has filed 186 SEC EDGAR filings since 13 Nov 1995

Latest Filings

Recent SEC filings for IRONSTONE PROPERTIES, INC. including 10-Q, 10-K, UPLOAD and more.

Form type Document Filing Description Filing date Reporting date File number(s)
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 12 Nov 2025 30 Sep 2025 000-12346
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 15 Aug 2025 30 Jun 2025 000-12346
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 19 May 2025 31 Mar 2025 000-12346
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 16 Apr 2025 31 Dec 2024 000-12346
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 12 Nov 2024 30 Sep 2024 000-12346
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 19 Sep 2024 30 Jun 2024 000-12346
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 19 Sep 2024 31 Dec 2023 000-12346
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 27 Nov 2023
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 30 Oct 2023
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 06 Oct 2023
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 14 Sep 2023
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 17 May 2023 31 Dec 2022 000-12346
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 22 Nov 2022 30 Sep 2022 000-12346
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 08 Aug 2022 30 Jun 2022 000-12346
4 Open 4 document View SEC filing for 4 FORM 4 08 Jul 2022 06 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 08 Jul 2022 27 May 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 17 Jun 2022 16 Jun 2022 000-12346
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 14 Jun 2022 13 Jun 2022 000-12346
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 09 Jun 2022 09 Jun 2022 000-12346
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 01 Jun 2022 01 Jun 2022 000-12346
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 17 May 2022 31 Mar 2022 000-12346
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 31 Mar 2022 31 Dec 2021 000-12346
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 08 Nov 2021 30 Sep 2021 000-12346
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 15 Oct 2021 30 Sep 2021 000-12346
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 20 Aug 2021 30 Jun 2021 000-12346
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q FORM NT 10-Q 16 Aug 2021 30 Jun 2021 000-12346
10-Q/A Open 10-Q/A document | Open XBRL data View SEC filing for 10-Q/A FORM 10-Q/A 28 Jun 2021 31 Mar 2021 000-12346
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 17 Jun 2021 31 Mar 2021 000-12346
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 17 Jun 2021 17 Jun 2021 000-12346
NT 10-K Open NT 10-K document View SEC filing for NT 10-K FORM NT 10-K 31 Mar 2016 31 Dec 2015 000-12346
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 08 Jan 2016 08 Jan 2016 000-12346
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 13 Nov 2015 30 Sep 2015 000-12346
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 18 Sep 2015 14 Sep 2015 000-12346
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 18 Aug 2015 30 Jun 2015 000-12346
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q FORM NT 10-Q 13 Aug 2015 30 Jun 2015 000-12346
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 20 May 2015 31 Mar 2015 000-12346
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q FORM NT 10-Q 18 May 2015 31 Mar 2015 000-12346
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 15 Apr 2015 31 Dec 2014 000-12346
NT 10-K Open NT 10-K document View SEC filing for NT 10-K FORM NT 10-K 01 Apr 2015 31 Dec 2014 000-12346
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 14 Nov 2014 30 Sep 2014 000-12346
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 17 Sep 2014 12 Sep 2014 000-12346
3 Open 3 document View SEC filing for 3 FORM 3 17 Sep 2014 15 Sep 2014
4/A Open 4/A document View SEC filing for 4/A PRIMARY DOCUMENT 11 Sep 2014 02 Jan 2014
4/A Open 4/A document View SEC filing for 4/A PRIMARY DOCUMENT 11 Sep 2014 20 Aug 2013
3/A Open 3/A document View SEC filing for 3/A PRIMARY DOCUMENT 11 Sep 2014 01 Jul 2013
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 05 Sep 2014 02 Jan 2014
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 05 Sep 2014 02 Jan 2014
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 14 Aug 2014 30 Jun 2014 000-12346
4 Open 4 document View SEC filing for 4 FORM 4 02 Jul 2014 20 Aug 2013
4 Open 4 document View SEC filing for 4 FORM 4 02 Jul 2014 02 Jan 2014
3 Open 3 document View SEC filing for 3 FORM 3 30 Jun 2014 01 Jul 2013
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 09 Jun 2014 17 Dec 2013
4 Open 4 document View SEC filing for 4 FORM 4 09 Jun 2014 20 Aug 2013
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 14 May 2014 31 Mar 2014 000-12346
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 13 May 2014 13 May 2014 000-12346
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 15 Apr 2014 31 Dec 2013 000-12346
NT 10-K/A Open NT 10-K/A document View SEC filing for NT 10-K/A FORM NT 10-K/A 02 Apr 2014 31 Dec 2013 000-12346
NT 10-K Open NT 10-K document View SEC filing for NT 10-K FORM NT 10-K 01 Apr 2014 31 Dec 2013 000-12346
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 04 Mar 2014
CORRESP Open CORRESP document View SEC filing for CORRESP 27 Feb 2014
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 20 Feb 2014
4 Open 4 document View SEC filing for 4 FORM 4 22 Jan 2014 17 Dec 2013
8-K/A Open 8-K/A document View SEC filing for 8-K/A FORM 8-K/A 14 Jan 2014 06 Jan 2014 000-12346
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 07 Jan 2014
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 07 Jan 2014 02 Jan 2014 000-12346
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 13 Nov 2013 30 Sep 2013 000-12346
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 13 Aug 2013 30 Jun 2013 000-12346
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 09 May 2013 31 Mar 2013 000-12346
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 27 Mar 2013 31 Dec 2012 000-12346
8-K/A Open 8-K/A document View SEC filing for 8-K/A FORM 8-K/A-2 14 Dec 2012 14 Dec 2012 000-12346
8-K/A Open 8-K/A document View SEC filing for 8-K/A FORM 8-K/A 19 Nov 2012 19 Nov 2012 000-12346
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 19 Nov 2012 30 Sep 2012 000-12346
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q NOTIFICATION OF LATE FILING 13 Nov 2012 30 Sep 2012 000-12346
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 22 Oct 2012 18 Oct 2012 000-12346
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 14 Aug 2012 30 Jun 2012 000-12346
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 21 May 2012 31 Mar 2012 000-12346
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q NOTIFICATION OF LATE FILING 16 May 2012 31 Mar 2012 000-12346
8-K Open 8-K document View SEC filing for 8-K CURRENT REPORT 04 Apr 2012 30 Mar 2012 000-12346
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Apr 2012 31 Mar 2012
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 28 Mar 2012 31 Dec 2011 000-12346
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 14 Nov 2011 30 Sep 2011 000-12346
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 29 Jul 2011 30 Jun 2011 000-12346
10-Q Open 10-Q document View SEC filing for 10-Q QUARTERLY REPORT 11 May 2011 31 Mar 2011 000-12346
10-K Open 10-K document View SEC filing for 10-K FORM 10-K 01 Apr 2011 31 Dec 2010 000-12346
NT 10-K Open NT 10-K document View SEC filing for NT 10-K NOTIFICATION OF LATE FILING 01 Apr 2011 31 Dec 2010 000-12346
10-Q Open 10-Q document View SEC filing for 10-Q CURRENT REPORT 12 Nov 2010 30 Sep 2010 000-12346
10-Q Open 10-Q document View SEC filing for 10-Q FORM 10-Q 20 Aug 2010 30 Jun 2010 000-12346
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q FILING EXTENSION 16 Aug 2010 30 Jun 2010 000-12346
10-Q Open 10-Q document View SEC filing for 10-Q QUARTERLY REPORT 12 May 2010 31 Mar 2010 000-12346
10-K Open 10-K document View SEC filing for 10-K FORM 10-K 14 Apr 2010 31 Dec 2009 000-12346
NT 10-K Open NT 10-K document View SEC filing for NT 10-K 01 Apr 2010 31 Dec 2009 000-12346

About this filer

IRONSTONE PROPERTIES, INC. files with the SEC under CIK 0000723269. This page aggregates EDGAR filings and related ownership activity.

Industry: Blank Checks.

See insider transactions for this issuer.

FAQ

What is a CIK?
A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?
New filings appear as the SEC updates EDGAR, and older records can vary by availability.
How often is this page updated?
Updates follow new EDGAR submissions and periodic data refreshes.

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