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.

SEC EDGAR filings, ownership reports, and insider transactions for Spenser Skates.

Business address: C/O Amplitude, Inc., 201 Third Street, Suite 200, San Francisco, CA, 94103
Top holdings (ownership): AMPL

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Spenser Skates has filed 16 SEC EDGAR filings since 21 Sep 2021

Recent SEC filings for Spenser Skates including 4, 144, SC 13G/A and more.

Form type	Document	Filing	Description	Filing date	Reporting date	File number(s)
4	Open 4 document	View SEC filing for 4	PRIMARY DOCUMENT	30 Dec 2025	26 Dec 2025	001-40817
4	Open 4 document	View SEC filing for 4	PRIMARY DOCUMENT	29 Dec 2025	24 Dec 2025	001-40817
144	Open 144 document	View SEC filing for 144		29 Dec 2025
4	Open 4 document	View SEC filing for 4	PRIMARY DOCUMENT	13 Nov 2025	11 Nov 2025	001-40817
144	Open 144 document	View SEC filing for 144		12 Nov 2025
4	Open 4 document	View SEC filing for 4		06 Aug 2025	04 Aug 2025	001-40817
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A	SC 13G/A	13 Nov 2024
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A	SC 13G/A	14 Feb 2024
SC 13G/A	Open SC 13G/A document	View SEC filing for SC 13G/A	SC 13G/A	13 Feb 2023
4	Open 4 document	View SEC filing for 4	FORM 4	23 Feb 2022	18 Feb 2022	001-40817
SC 13G	Open SC 13G document	View SEC filing for SC 13G	SC 13G	14 Feb 2022
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	15 Dec 2021	13 Dec 2021	001-40817
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	05 Oct 2021	01 Oct 2021	001-40817
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	30 Sep 2021	28 Sep 2021	001-40817
4	Open 4 document	View SEC filing for 4	FORM 4 SUBMISSION	23 Sep 2021	30 Aug 2021	001-40817
3	Open 3 document	View SEC filing for 3	FORM 3 SUBMISSION	21 Sep 2021	21 Sep 2021	001-40817

Spenser Skates files with the SEC under CIK 0001882913. This page aggregates EDGAR filings and related ownership activity.

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.