STAMPS.COM INC

Business address
1990 E. Grand Ave, El Segundo, CA, 90245
State of incorporation
DE
Fiscal year end
31 December
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STAMPS.COM INC has filed 1,487 SEC EDGAR filings since 26 Apr 1999

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
15-12G Open Document Open Filing 15-12G 18 Oct 2021 000-26427
SC 13G Open Document Open Filing 13 Oct 2021 005-58035
EFFECT Open Document Open Filing 08 Oct 2021 333-43950
EFFECT Open Document Open Filing 08 Oct 2021 333-202161
4 Open Document Open Filing FORM 4 07 Oct 2021 05 Oct 2021
4 Open Document Open Filing FORM 4 07 Oct 2021 05 Oct 2021
4 Open Document Open Filing FORM 4 07 Oct 2021 05 Oct 2021
4 Open Document Open Filing FORM 4 07 Oct 2021 05 Oct 2021
4 Open Document Open Filing FORM 4 07 Oct 2021 05 Oct 2021
4 Open Document Open Filing FORM 4 07 Oct 2021 05 Oct 2021
4 Open Document Open Filing FORM 4 07 Oct 2021 05 Oct 2021
4 Open Document Open Filing FORM 4 07 Oct 2021 05 Oct 2021
4 Open Document Open Filing FORM 4 07 Oct 2021 05 Oct 2021
4 Open Document Open Filing FORM 4 07 Oct 2021 05 Oct 2021
4 Open Document Open Filing FORM 4 07 Oct 2021 05 Oct 2021
4 Open Document Open Filing FORM 4 07 Oct 2021 05 Oct 2021
4 Open Document Open Filing FORM 4 07 Oct 2021 05 Oct 2021
4 Open Document Open Filing FORM 4 07 Oct 2021 05 Oct 2021
S-8 POS Open Document Open Filing S-8 POS 05 Oct 2021 333-81733
S-8 POS Open Document Open Filing S-8 POS 05 Oct 2021 333-33648
S-8 POS Open Document Open Filing S-8 POS 05 Oct 2021 333-42764
S-8 POS Open Document Open Filing S-8 POS 05 Oct 2021 333-168360
S-8 POS Open Document Open Filing S-8 POS 05 Oct 2021 333-216990
S-8 POS Open Document Open Filing S-8 POS 05 Oct 2021 333-233999
POS AM Open Document Open Filing POS AM 05 Oct 2021 333-43950
POS AM Open Document Open Filing FORM POS AM 05 Oct 2021 333-202161
8-K Open Document | Data Open Filing FORM 8-K 05 Oct 2021 05 Oct 2021 000-26427
25-NSE Open Document Open Filing 05 Oct 2021 000-26427
4 Open Document Open Filing FORM 4 04 Oct 2021 30 Sep 2021
8-K Open Document | Data Open Filing 8-K 01 Oct 2021 30 Sep 2021 000-26427
4 Open Document Open Filing FORM 4 28 Sep 2021 24 Sep 2021
DEFA14A Open Document Open Filing FORM DEFA14A 22 Sep 2021 000-26427
8-K Open Document | Data Open Filing 8-K 22 Sep 2021 22 Sep 2021 000-26427
4 Open Document Open Filing FORM 4 20 Sep 2021 16 Sep 2021
4 Open Document Open Filing FORM 4 15 Sep 2021 14 Sep 2021
DEFA14A Open Document Open Filing DEFA14A 09 Sep 2021 000-26427
4 Open Document Open Filing FORM 4 08 Sep 2021 03 Sep 2021
4 Open Document Open Filing FORM 4 03 Sep 2021 01 Sep 2021
DEFM14A Open Document Open Filing DEFM14A 30 Aug 2021 000-26427
4 Open Document Open Filing FORM 4 30 Aug 2021 26 Aug 2021
PREM14A Open Document Open Filing PREM14A 19 Aug 2021 30 Sep 2021 000-26427
DEFA14A Open Document Open Filing DEFA14A 19 Aug 2021 000-26427
8-K Open Document | Data Open Filing FORM 8-K 19 Aug 2021 18 Aug 2021 000-26427
4 Open Document Open Filing FORM 4 17 Aug 2021 13 Aug 2021
4 Open Document Open Filing FORM 4 06 Aug 2021 04 Aug 2021
10-Q Open Document | Data Open Filing 10-Q 06 Aug 2021 30 Jun 2021 000-26427
4 Open Document Open Filing FORM 4 05 Aug 2021 03 Aug 2021
4 Open Document Open Filing FORM 4 05 Aug 2021 03 Aug 2021
8-K Open Document | Data Open Filing 8-K 05 Aug 2021 05 Aug 2021 000-26427
4 Open Document Open Filing FORM 4 03 Aug 2021 30 Jul 2021
4 Open Document Open Filing FORM 4 03 Aug 2021 30 Jul 2021
4 Open Document Open Filing FORM 4 03 Aug 2021 30 Jul 2021
4 Open Document Open Filing FORM 4 03 Aug 2021 30 Jul 2021
4 Open Document Open Filing FORM 4 03 Aug 2021 30 Jul 2021
8-K Open Document | Data Open Filing 8-K 30 Jul 2021 27 Jul 2021 000-26427
4 Open Document Open Filing FORM 4 28 Jul 2021 26 Jul 2021
4 Open Document Open Filing FORM 4 28 Jul 2021 26 Jul 2021
4 Open Document Open Filing FORM 4 13 Jul 2021 09 Jul 2021
4 Open Document Open Filing FORM 4 13 Jul 2021 09 Jul 2021
4 Open Document Open Filing FORM 4 13 Jul 2021 09 Jul 2021
4 Open Document Open Filing FORM 4 13 Jul 2021 09 Jul 2021
4 Open Document Open Filing FORM 4 13 Jul 2021 09 Jul 2021
DEFA14A Open Document Open Filing DEFA14A 12 Jul 2021 000-26427
DEFA14A Open Document Open Filing DEFA14A 12 Jul 2021 000-26427
DEFA14A Open Document Open Filing 8-K 09 Jul 2021 000-26427
8-K Open Document | Data Open Filing 8-K 09 Jul 2021 08 Jul 2021 000-26427
DEFA14A Open Document Open Filing DEFA14A 09 Jul 2021 000-26427
8-K Open Document | Data Open Filing 8-K 09 Jul 2021 08 Jul 2021 000-26427
4 Open Document Open Filing FORM 4 08 Jul 2021 06 Jul 2021
4 Open Document Open Filing FORM 4 08 Jul 2021 06 Jul 2021
4 Open Document Open Filing FORM 4 15 Jun 2021 11 Jun 2021
4 Open Document Open Filing FORM 4 11 Jun 2021 09 Jun 2021
4 Open Document Open Filing FORM 4 11 Jun 2021 09 Jun 2021
4 Open Document Open Filing FORM 4 11 Jun 2021 09 Jun 2021
4 Open Document Open Filing FORM 4 11 Jun 2021 09 Jun 2021
4 Open Document Open Filing FORM 4 11 Jun 2021 09 Jun 2021
8-K Open Document | Data Open Filing 8-K 11 Jun 2021 09 Jun 2021 000-26427
8-K Open Document | Data Open Filing 8-K 04 Jun 2021 28 May 2021 000-26427
SD Open Document Open Filing SD 28 May 2021 000-26427
10-Q Open Document | Data Open Filing 10-Q 07 May 2021 31 Mar 2021 000-26427
8-K Open Document | Data Open Filing 8-K 07 May 2021 06 May 2021 000-26427
DEF 14A Open Document Open Filing DEF 14A 30 Apr 2021 31 Dec 2020 000-26427
4 Open Document Open Filing FORM 4 29 Apr 2021 27 Apr 2021
SC 13G/A Open Document Open Filing SCHEDULE 13G/A 16 Apr 2021 005-58035
4 Open Document Open Filing FORM 4 31 Mar 2021 29 Mar 2021
8-K Open Document | Data Open Filing 8-K 18 Mar 2021 12 Mar 2021 000-26427
4 Open Document Open Filing FORM 4 05 Mar 2021 03 Mar 2021
8-K Open Document | Data Open Filing 8-K 02 Mar 2021 26 Feb 2021 000-26427
10-K Open Document | Data Open Filing 10-K 26 Feb 2021 31 Dec 2020 000-26427
8-K Open Document | Data Open Filing 8-K 17 Feb 2021 17 Feb 2021 000-26427
SC 13G/A Open Document Open Filing SC 13G/A 16 Feb 2021 005-58035
SC 13G/A Open Document Open Filing SCHEDULE 13G/A 10 Feb 2021 005-58035
4 Open Document Open Filing FORM 4 05 Feb 2021 03 Feb 2021
4 Open Document Open Filing FORM 4 05 Feb 2021 03 Feb 2021
4 Open Document Open Filing FORM 4 03 Feb 2021 01 Feb 2021
4 Open Document Open Filing FORM 4 02 Feb 2021 29 Jan 2021
4 Open Document Open Filing FORM 4 02 Feb 2021 29 Jan 2021
4 Open Document Open Filing FORM 4 02 Feb 2021 29 Jan 2021
4 Open Document Open Filing FORM 4 02 Feb 2021 29 Jan 2021
4 Open Document Open Filing FORM 4 02 Feb 2021 29 Jan 2021
4 Open Document Open Filing FORM 4 02 Feb 2021 29 Jan 2021
4 Open Document Open Filing FORM 4 27 Jan 2021 25 Jan 2021
SC 13G Open Document Open Filing 25 Jan 2021 005-58035
4 Open Document Open Filing FORM 4 15 Jan 2021 13 Jan 2021
4 Open Document Open Filing FORM 4 06 Jan 2021 04 Jan 2021
4 Open Document Open Filing FORM 4 22 Dec 2020 18 Dec 2020
4 Open Document Open Filing FORM 4 18 Dec 2020 16 Dec 2020
4 Open Document Open Filing FORM 4 11 Dec 2020 09 Dec 2020
4 Open Document Open Filing FORM 4 10 Dec 2020 08 Dec 2020
4 Open Document Open Filing FORM 4 07 Dec 2020 03 Dec 2020
4 Open Document Open Filing FORM 4 03 Dec 2020 01 Dec 2020
4 Open Document Open Filing FORM 4 18 Nov 2020 16 Nov 2020
4 Open Document Open Filing FORM 4 12 Nov 2020 09 Nov 2020
10-Q Open Document | Data Open Filing 10-Q 06 Nov 2020 30 Sep 2020 000-26427
8-K Open Document | Data Open Filing 8-K 06 Nov 2020 05 Nov 2020 000-26427
4 Open Document Open Filing FORM 4 05 Nov 2020 03 Nov 2020
4 Open Document Open Filing FORM 4 05 Nov 2020 03 Nov 2020
4 Open Document Open Filing FORM 4 04 Nov 2020 02 Nov 2020
4 Open Document Open Filing FORM 4 28 Oct 2020 26 Oct 2020
4 Open Document Open Filing FORM 4 21 Oct 2020 19 Oct 2020
4 Open Document Open Filing FORM 4 07 Oct 2020 05 Oct 2020
4 Open Document Open Filing FORM 4 05 Oct 2020 01 Oct 2020
4 Open Document Open Filing FORM 4 05 Oct 2020 01 Oct 2020
4 Open Document Open Filing FORM 4 05 Oct 2020 01 Oct 2020
4 Open Document Open Filing FORM 4 18 Sep 2020 16 Sep 2020
4 Open Document Open Filing FORM 4 17 Sep 2020 15 Sep 2020
4 Open Document Open Filing FORM 4 08 Sep 2020 03 Sep 2020
4 Open Document Open Filing FORM 4 03 Sep 2020 01 Sep 2020
4 Open Document Open Filing FORM 4 03 Sep 2020 01 Sep 2020
4 Open Document Open Filing FORM 4 03 Sep 2020 01 Sep 2020
4 Open Document Open Filing FORM 4 28 Aug 2020 26 Aug 2020
4 Open Document Open Filing FORM 4 20 Aug 2020 18 Aug 2020
4 Open Document Open Filing FORM 4 19 Aug 2020 17 Aug 2020
4 Open Document Open Filing FORM 4 07 Aug 2020 05 Aug 2020
10-Q Open Document | Data Open Filing 10-Q 07 Aug 2020 30 Jun 2020 000-26427
8-K Open Document | Data Open Filing 8-K 07 Aug 2020 06 Aug 2020 000-26427
4 Open Document Open Filing FORM 4 05 Aug 2020 03 Aug 2020
4 Open Document Open Filing FORM 4 05 Aug 2020 03 Aug 2020
4 Open Document Open Filing FORM 4 05 Aug 2020 03 Aug 2020
4 Open Document Open Filing FORM 4 04 Aug 2020 31 Jul 2020
4 Open Document Open Filing FORM 4 04 Aug 2020 31 Jul 2020
4 Open Document Open Filing FORM 4 31 Jul 2020 29 Jul 2020
4 Open Document Open Filing FORM 4 31 Jul 2020 29 Jul 2020
4 Open Document Open Filing FORM 4 22 Jul 2020 20 Jul 2020
4/A Open Document Open Filing FORM 4/A 22 Jul 2020 01 Jul 2020
4 Open Document Open Filing FORM 4 21 Jul 2020 17 Jul 2020
4 Open Document Open Filing FORM 4 21 Jul 2020 17 Jul 2020
4 Open Document Open Filing FORM 4 08 Jul 2020 06 Jul 2020
4 Open Document Open Filing FORM 4 07 Jul 2020 02 Jul 2020
4 Open Document Open Filing FORM 4 06 Jul 2020 01 Jul 2020
8-K Open Document | Data Open Filing 8-K 06 Jul 2020 29 Jun 2020 000-26427
8-K Open Document | Data Open Filing 8-K 16 Jun 2020 10 Jun 2020 000-26427
4 Open Document Open Filing FORM 4 12 Jun 2020 10 Jun 2020
4 Open Document Open Filing FORM 4 12 Jun 2020 10 Jun 2020
4 Open Document Open Filing FORM 4 12 Jun 2020 10 Jun 2020
4 Open Document Open Filing FORM 4 12 Jun 2020 10 Jun 2020
4 Open Document Open Filing FORM 4 12 Jun 2020 10 Jun 2020
4 Open Document Open Filing FORM 4 10 Jun 2020 08 Jun 2020
4 Open Document Open Filing FORM 4 05 Jun 2020 03 Jun 2020
4 Open Document Open Filing FORM 4 03 Jun 2020 01 Jun 2020
SD Open Document Open Filing SD 01 Jun 2020 000-26427
4 Open Document Open Filing FORM 4 20 May 2020 18 May 2020
4 Open Document Open Filing FORM 4 11 May 2020 07 May 2020
10-Q Open Document | Data Open Filing 10-Q 08 May 2020 31 Mar 2020 000-26427
8-K Open Document | Data Open Filing 8-K 07 May 2020 07 May 2020 000-26427
4 Open Document Open Filing FORM 4 30 Apr 2020 28 Apr 2020
DEF 14A Open Document Open Filing DEF 14A 29 Apr 2020 31 Dec 2019 000-26427
8-K Open Document | Data Open Filing 8-K 09 Apr 2020 03 Apr 2020 000-26427
4 Open Document Open Filing FORM 4 02 Mar 2020 27 Feb 2020
10-K Open Document | Data Open Filing 10-K 02 Mar 2020 31 Dec 2019 000-26427
4 Open Document Open Filing FORM 4 25 Feb 2020 21 Feb 2020
8-K Open Document | Data Open Filing 8-K 19 Feb 2020 19 Feb 2020 000-26427
SC 13G/A Open Document Open Filing SC 13G/A 14 Feb 2020 005-58035
SC 13G/A Open Document Open Filing 14 Feb 2020 005-58035
SC 13G/A Open Document Open Filing SCHEDULE 13G/A 12 Feb 2020 005-58035
SC 13G Open Document Open Filing 06 Feb 2020 005-58035
4 Open Document Open Filing FORM 4 04 Feb 2020 31 Jan 2020
4 Open Document Open Filing FORM 4 04 Feb 2020 31 Jan 2020
4 Open Document Open Filing FORM 4 04 Feb 2020 31 Jan 2020
4 Open Document Open Filing FORM 4 04 Feb 2020 31 Jan 2020
4 Open Document Open Filing FORM 4 04 Feb 2020 31 Jan 2020
4 Open Document Open Filing FORM 4 04 Feb 2020 31 Jan 2020
4 Open Document Open Filing FORM 4 04 Feb 2020 31 Jan 2020
SC 13G/A Open Document Open Filing 04 Feb 2020 005-58035
UPLOAD Open Document Open Filing 04 Feb 2020
CORRESP Open Document Open Filing 29 Jan 2020
8-K Open Document | Data Open Filing 8-K 24 Jan 2020 17 Jan 2020 000-26427
4 Open Document Open Filing FORM 4 22 Jan 2020 17 Jan 2020
CORRESP Open Document Open Filing 07 Jan 2020
UPLOAD Open Document Open Filing 30 Dec 2019
4 Open Document Open Filing FORM 4 22 Nov 2019 20 Nov 2019
SC 13G/A Open Document Open Filing SCHEDULE 13G/A 18 Nov 2019 005-58035
10-Q Open Document | Data Open Filing 10-Q 12 Nov 2019 30 Sep 2019 000-26427
8-K Open Document | Data Open Filing 8-K 08 Nov 2019 07 Nov 2019 000-26427
8-K Open Document | Data Open Filing 8-K 06 Nov 2019 31 Oct 2019 000-26427
SC 13G/A Open Document Open Filing SC 13G/A 15 Oct 2019 005-58035
S-8 Open Document Open Filing S-8 27 Sep 2019 333-233999
4/A Open Document Open Filing FORM 4/A 23 Aug 2019 11 Aug 2017
10-Q Open Document | Data Open Filing 10-Q 08 Aug 2019 30 Jun 2019 000-26427
8-K Open Document Open Filing 8-K 07 Aug 2019 07 Aug 2019 000-26427
4 Open Document Open Filing FORM 4 02 Aug 2019 31 Jul 2019
4 Open Document Open Filing FORM 4 02 Aug 2019 31 Jul 2019
SC 13G Open Document Open Filing SCHEDULE 13G 05 Jul 2019 005-58035
4 Open Document Open Filing FORM 4 14 Jun 2019 12 Jun 2019
4 Open Document Open Filing FORM 4 14 Jun 2019 12 Jun 2019
4 Open Document Open Filing FORM 4 14 Jun 2019 12 Jun 2019
4 Open Document Open Filing FORM 4 14 Jun 2019 12 Jun 2019
8-K Open Document Open Filing 8-K 14 Jun 2019 12 Jun 2019 000-26427
SC 13G/A Open Document Open Filing 10 Jun 2019 005-58035
4 Open Document Open Filing FORM 4 05 Jun 2019 03 Jun 2019
4 Open Document Open Filing FORM 4 05 Jun 2019 03 Jun 2019
4 Open Document Open Filing FORM 4 05 Jun 2019 03 Jun 2019
4 Open Document Open Filing FORM 4 05 Jun 2019 03 Jun 2019
4 Open Document Open Filing FORM 4 05 Jun 2019 03 Jun 2019
4 Open Document Open Filing FORM 4 05 Jun 2019 03 Jun 2019
4 Open Document Open Filing FORM 4 05 Jun 2019 03 Jun 2019
4 Open Document Open Filing FORM 4 05 Jun 2019 03 Jun 2019
4 Open Document Open Filing FORM 4 05 Jun 2019 03 Jun 2019
4 Open Document Open Filing FORM 4 05 Jun 2019 03 Jun 2019
SD Open Document Open Filing SD 31 May 2019 000-26427
SC 13G Open Document Open Filing 15 May 2019 005-58035
10-Q Open Document | Data Open Filing 10-Q 10 May 2019 31 Mar 2019 000-26427
8-K Open Document Open Filing 8-K 09 May 2019 08 May 2019 000-26427
DEF 14A Open Document Open Filing DEF 14A 30 Apr 2019 12 Jun 2019 000-26427
4 Open Document Open Filing FORM 4 12 Apr 2019 18 Mar 2019
8-K Open Document Open Filing 8-K 11 Apr 2019 05 Apr 2019 000-26427
8-K Open Document Open Filing 8-K 04 Apr 2019 29 Mar 2019 000-26427
4 Open Document Open Filing FORM 4 15 Mar 2019 14 Mar 2019
4 Open Document Open Filing FORM 4 11 Mar 2019 06 Mar 2019
SC 13G/A Open Document Open Filing 11 Mar 2019 005-58035
10-K Open Document | Data Open Filing 10-K 01 Mar 2019 31 Dec 2018 000-26427
8-K Open Document Open Filing 8-K 22 Feb 2019 15 Feb 2019 000-26427
4 Open Document Open Filing FORM 4 20 Feb 2019 15 Feb 2019
SC 13G/A Open Document Open Filing 13 Feb 2019 005-58035
SC 13G/A Open Document Open Filing 11 Feb 2019 005-58035
4 Open Document Open Filing FORM 4 04 Feb 2019 31 Jan 2019
4 Open Document Open Filing FORM 4 04 Feb 2019 31 Jan 2019
4 Open Document Open Filing FORM 4 04 Feb 2019 31 Jan 2019
4 Open Document Open Filing FORM 4 04 Feb 2019 31 Jan 2019
4 Open Document Open Filing FORM 4 04 Feb 2019 31 Jan 2019
4 Open Document Open Filing FORM 4 04 Feb 2019 31 Jan 2019
4 Open Document Open Filing FORM 4 04 Feb 2019 31 Jan 2019
4 Open Document Open Filing FORM 4 04 Feb 2019 31 Jan 2019
SC 13G/A Open Document Open Filing 31 Jan 2019 005-58035
UPLOAD Open Document Open Filing 29 Jan 2019
CORRESP Open Document Open Filing 15 Jan 2019
4 Open Document Open Filing FORM 4 03 Jan 2019 02 Jan 2019
CORRESP Open Document Open Filing 18 Dec 2018
UPLOAD Open Document Open Filing 11 Dec 2018
10-Q Open Document | Data Open Filing FORM 10-Q 09 Nov 2018 30 Sep 2018 000-26427
4 Open Document Open Filing FORM 4 05 Nov 2018 01 Nov 2018
8-K/A Open Document Open Filing 8-K/A 31 Oct 2018 15 Aug 2018 000-26427
8-K Open Document Open Filing 8-K 31 Oct 2018 31 Oct 2018 000-26427
4 Open Document Open Filing FORM 4 17 Oct 2018 15 Oct 2018
4 Open Document Open Filing FORM 4 03 Oct 2018 01 Oct 2018
4 Open Document Open Filing FORM 4 03 Oct 2018 01 Oct 2018
CT ORDER Open Document Open Filing 25 Sep 2018 000-26427
SC 13G/A Open Document Open Filing 10 Sep 2018 005-58035
4 Open Document Open Filing FORM 4 06 Sep 2018 04 Sep 2018
4 Open Document Open Filing FORM 4 06 Sep 2018 04 Sep 2018
8-K Open Document Open Filing 8-K 21 Aug 2018 15 Aug 2018 000-26427
10-Q Open Document | Data Open Filing FORM 10-Q 08 Aug 2018 30 Jun 2018 000-26427
4 Open Document Open Filing FORM 4 02 Aug 2018 31 Jul 2018
4 Open Document Open Filing FORM 4 02 Aug 2018 31 Jul 2018
4 Open Document Open Filing FORM 4 02 Aug 2018 31 Jul 2018
4 Open Document Open Filing FORM 4 02 Aug 2018 31 Jul 2018
4 Open Document Open Filing FORM 4 02 Aug 2018 31 Jul 2018
4 Open Document Open Filing FORM 4 02 Aug 2018 31 Jul 2018
4 Open Document Open Filing FORM 4 02 Aug 2018 01 Aug 2018
3 Open Document Open Filing FORM 3 02 Aug 2018 25 Jul 2018
3 Open Document Open Filing FORM 3 02 Aug 2018 25 Jul 2018
8-K Open Document Open Filing 8-K 02 Aug 2018 01 Aug 2018 000-26427
8-K Open Document Open Filing 8-K 30 Jul 2018 24 Jul 2018 000-26427
4 Open Document Open Filing FORM 4 02 Jul 2018 02 Jul 2018
4 Open Document Open Filing FORM 4 02 Jul 2018 02 Jul 2018
4 Open Document Open Filing FORM 4 18 Jun 2018 14 Jun 2018
4 Open Document Open Filing FORM 4 13 Jun 2018 12 Jun 2018
4 Open Document Open Filing FORM 4 13 Jun 2018 11 Jun 2018
4 Open Document Open Filing FORM 4 13 Jun 2018 11 Jun 2018
4 Open Document Open Filing FORM 4 13 Jun 2018 11 Jun 2018
4 Open Document Open Filing FORM 4 13 Jun 2018 11 Jun 2018
4 Open Document Open Filing FORM 4 13 Jun 2018 11 Jun 2018
8-K Open Document Open Filing 8-K 12 Jun 2018 11 Jun 2018 000-26427
4 Open Document Open Filing FORM 4 08 Jun 2018 06 Jun 2018
4 Open Document Open Filing FORM 4 05 Jun 2018 01 Jun 2018
4 Open Document Open Filing FORM 4 05 Jun 2018 01 Jun 2018
4 Open Document Open Filing FORM 4 05 Jun 2018 01 Jun 2018
4 Open Document Open Filing FORM 4 31 May 2018 29 May 2018
SD Open Document Open Filing 2017 FORM SD 31 May 2018 000-26427
4 Open Document Open Filing FORM 4 23 May 2018 21 May 2018
4 Open Document Open Filing FORM 4 17 May 2018 15 May 2018
4 Open Document Open Filing FORM 4 16 May 2018 14 May 2018
10-Q Open Document | Data Open Filing FORM 10-Q 10 May 2018 31 Mar 2018 000-26427
4 Open Document Open Filing FORM 4 08 May 2018 04 May 2018
4 Open Document Open Filing FORM 4 04 May 2018 02 May 2018
8-K Open Document Open Filing 8-K 04 May 2018 03 May 2018 000-26427
4 Open Document Open Filing FORM 4 03 May 2018 01 May 2018
DEF 14A Open Document Open Filing DEF 14A 30 Apr 2018 11 Jun 2018 000-26427
4 Open Document Open Filing FORM 4 18 Apr 2018 16 Apr 2018
4/A Open Document Open Filing FORM 4/A 09 Apr 2018 26 Feb 2018
8-K Open Document Open Filing 8-K 05 Apr 2018 28 Mar 2018 000-26427
4 Open Document Open Filing FORM 4 04 Apr 2018 02 Apr 2018
4 Open Document Open Filing FORM 4 19 Mar 2018 15 Mar 2018
4 Open Document Open Filing FORM 4 09 Mar 2018 08 Mar 2018
4 Open Document Open Filing FORM 4 09 Mar 2018 07 Mar 2018
4 Open Document Open Filing FORM 4 09 Mar 2018 07 Mar 2018
4 Open Document Open Filing FORM 4 07 Mar 2018 05 Mar 2018
4 Open Document Open Filing FORM 4 06 Mar 2018 02 Mar 2018
4 Open Document Open Filing FORM 4 06 Mar 2018 02 Mar 2018
4 Open Document Open Filing FORM 4 05 Mar 2018 01 Mar 2018
4 Open Document Open Filing FORM 4 01 Mar 2018 27 Feb 2018
4 Open Document Open Filing FORM 4 SUBMISSION 28 Feb 2018 26 Feb 2018
4 Open Document Open Filing FORM 4 28 Feb 2018 26 Feb 2018
3 Open Document Open Filing FORM 3 28 Feb 2018 26 Feb 2018
10-K Open Document | Data Open Filing FORM 10-K 28 Feb 2018 31 Dec 2017 000-26427
SC 13G/A Open Document Open Filing 23 Feb 2018 005-58035
8-K Open Document Open Filing 8-K 22 Feb 2018 21 Feb 2018 000-26427
4 Open Document Open Filing FORM 4 SUBMISSION 20 Feb 2018 15 Feb 2018
SC 13G/A Open Document Open Filing 13 Feb 2018 005-58035
SC 13G/A Open Document Open Filing 12 Feb 2018 005-58035
4 Open Document Open Filing FORM 4 SUBMISSION 02 Feb 2018 31 Jan 2018
4 Open Document Open Filing FORM 4 SUBMISSION 02 Feb 2018 31 Jan 2018
4 Open Document Open Filing FORM 4 SUBMISSION 02 Feb 2018 31 Jan 2018
4 Open Document Open Filing FORM 4 SUBMISSION 02 Feb 2018 31 Jan 2018
4 Open Document Open Filing FORM 4 SUBMISSION 02 Feb 2018 31 Jan 2018
4 Open Document Open Filing FORM 4 SUBMISSION 02 Feb 2018 31 Jan 2018
SC 13G/A Open Document Open Filing 19 Jan 2018 005-58035
4 Open Document Open Filing FORM 4 SUBMISSION 18 Jan 2018 16 Jan 2018
3 Open Document Open Filing FORM 3 SUBMISSION 18 Jan 2018 15 Jan 2018
8-K Open Document Open Filing 8-K 16 Jan 2018 09 Jan 2018 000-26427
4 Open Document Open Filing FORM 4 SUBMISSION 04 Jan 2018 02 Jan 2018
4 Open Document Open Filing FORM 4 SUBMISSION 27 Dec 2017 22 Dec 2017
4 Open Document Open Filing FORM 4 SUBMISSION 20 Dec 2017 18 Dec 2017
4 Open Document Open Filing FORM 4 SUBMISSION 05 Dec 2017 01 Dec 2017
4 Open Document Open Filing FORM 4 SUBMISSION 01 Dec 2017 29 Nov 2017
4 Open Document Open Filing FORM 4 SUBMISSION 29 Nov 2017 27 Nov 2017
4 Open Document Open Filing FORM 4 SUBMISSION 09 Nov 2017 07 Nov 2017
10-Q Open Document | Data Open Filing 10-Q 09 Nov 2017 30 Sep 2017 000-26427
8-K Open Document Open Filing 8-K 06 Nov 2017 01 Nov 2017 000-26427
4 Open Document Open Filing FORM 4 SUBMISSION 03 Nov 2017 01 Nov 2017
4 Open Document Open Filing FORM 4 SUBMISSION 26 Oct 2017 24 Oct 2017
4 Open Document Open Filing FORM 4 SUBMISSION 26 Oct 2017 24 Oct 2017
4 Open Document Open Filing FORM 4 SUBMISSION 25 Oct 2017 23 Oct 2017
4 Open Document Open Filing FORM 4 SUBMISSION 25 Oct 2017 23 Oct 2017
4 Open Document Open Filing FORM 4 SUBMISSION 18 Oct 2017 16 Oct 2017
4 Open Document Open Filing FORM 4 SUBMISSION 13 Oct 2017 11 Oct 2017
4 Open Document Open Filing FORM 4 SUBMISSION 05 Oct 2017 03 Oct 2017
4 Open Document Open Filing FORM 4 SUBMISSION 04 Oct 2017 02 Oct 2017
4 Open Document Open Filing FORM 4 SUBMISSION 22 Sep 2017 20 Sep 2017
4 Open Document Open Filing FORM 4 SUBMISSION 22 Sep 2017 20 Sep 2017
4 Open Document Open Filing FORM 4 SUBMISSION 13 Sep 2017 11 Sep 2017
4 Open Document Open Filing FORM 4 SUBMISSION 13 Sep 2017 11 Sep 2017
4 Open Document Open Filing FORM 4 SUBMISSION 08 Sep 2017 07 Sep 2017
4 Open Document Open Filing FORM 4 SUBMISSION 05 Sep 2017 01 Sep 2017
4 Open Document Open Filing FORM 4 SUBMISSION 05 Sep 2017 01 Sep 2017
4 Open Document Open Filing FORM 4 SUBMISSION 01 Sep 2017 31 Aug 2017
4 Open Document Open Filing FORM 4 SUBMISSION 31 Aug 2017 30 Aug 2017
4 Open Document Open Filing FORM 4 SUBMISSION 30 Aug 2017 29 Aug 2017
4 Open Document Open Filing FORM 4 SUBMISSION 29 Aug 2017 25 Aug 2017
4 Open Document Open Filing FORM 4 SUBMISSION 25 Aug 2017 24 Aug 2017
4 Open Document Open Filing FORM 4 SUBMISSION 15 Aug 2017 11 Aug 2017
4 Open Document Open Filing FORM 4 SUBMISSION 09 Aug 2017 07 Aug 2017
10-Q Open Document | Data Open Filing 10-Q 08 Aug 2017 30 Jun 2017 000-26427
4/A Open Document Open Filing FORM 4/A SUBMISSION 07 Aug 2017 03 Aug 2017
4 Open Document Open Filing FORM 4 SUBMISSION 04 Aug 2017 03 Aug 2017
4 Open Document Open Filing FORM 4 SUBMISSION 02 Aug 2017 01 Aug 2017
3 Open Document Open Filing FORM 3 SUBMISSION 02 Aug 2017 31 Jul 2017
3 Open Document Open Filing FORM 3 SUBMISSION 02 Aug 2017 25 Jul 2017
4 Open Document Open Filing FORM 4 SUBMISSION 02 Aug 2017 31 Jul 2017
4 Open Document Open Filing FORM 4 SUBMISSION 02 Aug 2017 31 Jul 2017
8-K Open Document | Data Open Filing 8-K 02 Aug 2017 31 Jul 2017 000-26427
4 Open Document Open Filing FORM 4 SUBMISSION 26 Jul 2017 24 Jul 2017
4 Open Document Open Filing FORM 4 SUBMISSION 05 Jul 2017 03 Jul 2017
4 Open Document Open Filing FORM 4 SUBMISSION 28 Jun 2017 26 Jun 2017
4 Open Document Open Filing FORM 4 SUBMISSION 20 Jun 2017 19 Jun 2017
8-K Open Document Open Filing 8-K 19 Jun 2017 14 Jun 2017 000-26427
4 Open Document Open Filing FORM 4 SUBMISSION 16 Jun 2017 14 Jun 2017
4 Open Document Open Filing FORM 4 SUBMISSION 16 Jun 2017 14 Jun 2017
4 Open Document Open Filing FORM 4 SUBMISSION 16 Jun 2017 14 Jun 2017
4 Open Document Open Filing FORM 4 SUBMISSION 16 Jun 2017 14 Jun 2017
4 Open Document Open Filing FORM 4 SUBMISSION 15 Jun 2017 14 Jun 2017
4 Open Document Open Filing FORM 4 SUBMISSION 14 Jun 2017 12 Jun 2017
4 Open Document Open Filing FORM 4 SUBMISSION 09 Jun 2017 07 Jun 2017
4 Open Document Open Filing FORM 4 SUBMISSION 02 Jun 2017 01 Jun 2017
SD Open Document Open Filing SD 31 May 2017 000-26427
4 Open Document Open Filing FORM 4 SUBMISSION 26 May 2017 25 May 2017
4 Open Document Open Filing FORM 4 SUBMISSION 26 May 2017 24 May 2017
4 Open Document Open Filing FORM 4 SUBMISSION 18 May 2017 16 May 2017
10-Q Open Document | Data Open Filing 10-Q 10 May 2017 31 Mar 2017 000-26427
8-K Open Document Open Filing 8-K 09 May 2017 03 May 2017 000-26427
4 Open Document Open Filing FORM 4 SUBMISSION 05 May 2017 04 May 2017
DEF 14A Open Document Open Filing DEF 14A 01 May 2017 14 Jun 2017 000-26427
4 Open Document Open Filing FORM 4 SUBMISSION 27 Apr 2017 25 Apr 2017
4 Open Document Open Filing FORM 4 SUBMISSION 27 Apr 2017 25 Apr 2017
4 Open Document Open Filing FORM 4 SUBMISSION 27 Apr 2017 25 Apr 2017
4 Open Document Open Filing FORM 4 SUBMISSION 27 Apr 2017 25 Apr 2017
4 Open Document Open Filing FORM 4 SUBMISSION 26 Apr 2017 24 Apr 2017
8-K Open Document Open Filing 8-K 25 Apr 2017 19 Apr 2017 000-26427
4 Open Document Open Filing FORM 4 SUBMISSION 19 Apr 2017 17 Apr 2017
4 Open Document Open Filing FORM 4 SUBMISSION 03 Apr 2017 31 Mar 2017
4 Open Document Open Filing FORM 4 SUBMISSION 28 Mar 2017 24 Mar 2017
4/A Open Document Open Filing FORM 4/A SUBMISSION 28 Mar 2017 20 Feb 2014
S-8 Open Document Open Filing STAMPS.COM INC S-8 3-28-2017 28 Mar 2017 333-216990
4 Open Document Open Filing FORM 4 SUBMISSION 20 Mar 2017 16 Mar 2017
4 Open Document Open Filing FORM 4 SUBMISSION 20 Mar 2017 16 Mar 2017
4 Open Document Open Filing FORM 4 SUBMISSION 16 Mar 2017 14 Mar 2017
4 Open Document Open Filing FORM 4 SUBMISSION 10 Mar 2017 08 Mar 2017
4 Open Document Open Filing FORM 4 SUBMISSION 03 Mar 2017 01 Mar 2017
10-K Open Document | Data Open Filing STAMPS.COM INC. 10-K 12-31-2016 01 Mar 2017 31 Dec 2016 000-26427
8-K Open Document Open Filing STAMPS.COM, INC 8-K 2-23-2017 01 Mar 2017 23 Feb 2017 000-26427
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4/A Open Document Open Filing FORM 4/A SUBMISSION 27 Feb 2017 24 Jan 2017
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