Entity Type
Individual
Filer Snapshot
William K. MacNevin SEC EDGAR Filings
SEC filings, ownership reports, and insider transactions for CIK 0001961807.
Total Filings
19
Latest Filing
02 Apr 2026
Industry
n/a
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Start with the latest filings table, then open the strongest context page for this filer.
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- Open the deeper context page only when this filer actually has insider or ownership signal.
Source: SEC Forms 3/4/5
View Source Filing
4 filed on 02 Apr 2026 for CIK 0001961807.
- Business address
- 6900 E Layton Ave, Suite 1300, Denver, CO, 80237
- Top holdings (ownership)
- SSRM
Quick Takeaways
- William K. MacNevin is an SEC filer tracked under CIK 0001961807.
- 19 filings are listed on this profile.
- Common form coverage includes 4, 4/A, 3.
What Changed
- Latest filing: 4 filed on 02 Apr 2026.
- Report period: 01 Apr 2026.
Why This Matters
- You can quote filing dates and form types directly from the SEC record on this page.
- Use this profile before deeper ownership or insider analysis to confirm filing history context.
Source Evidence
Source: SEC Forms 3/4/5
View Source Filing
4 filed on 02 Apr 2026 for CIK 0001961807.
Return Loop
Why revisit this filer page
A newly filed 4 can change the filing history, ownership context, or next research path for William K. MacNevin.
- Latest source-backed update
- 4 filed 02 Apr 2026
- Why come back
- Revisit after a new SEC filing appears to compare the updated record with prior filings.
- Latest filing on record: 4 filed 02 Apr 2026.
- Save this filer if you want a stable place to return after the next filing cycle.
- Open the latest filing table or ownership context to verify what changed.
Filer freshness comes from SEC EDGAR submission history and related source-backed ownership or portfolio filings when available.
Latest update
What changed recently for William K. MacNevin
Latest ownership report period: 01 Apr 2026. Open the source-backed page to inspect the fresh filing or facts context.
Update date
02 Apr 2026
Page type
Ownership filings
Latest period
01 Apr 2026
Ownership context was refreshed from SEC Forms 3/4/5 filed on 02 Apr 2026.
Filer Overview
William K. MacNevin has filed 19 SEC EDGAR filings since 11 Jan 2023. Common forms include 4, 4/A, 3.
Latest Filings
Recent SEC filings for William K. MacNevin with direct links to document and filing folders.
4
File 001-35455
FORM 4
- Filing date
- 02 Apr 2026
- Reporting date
- 01 Apr 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-35455
FORM 4
- Filing date
- 24 Mar 2026
- Reporting date
- 09 Mar 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4/A
File 001-35455
FORM 4/A
- Filing date
- 14 Jan 2026
- Reporting date
- 01 Jan 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4/A
File 001-35455
FORM 4/A
- Filing date
- 06 Jan 2026
- Reporting date
- 01 Jan 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-35455
FORM 4
- Filing date
- 05 Jan 2026
- Reporting date
- 05 Jan 2026
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-35455
FORM 4
- Filing date
- 02 Oct 2025
- Reporting date
- 01 Oct 2025
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-35455
FORM 4
- Filing date
- 03 Apr 2025
- Reporting date
- 01 Apr 2025
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-35455
FORM 4
- Filing date
- 11 Mar 2025
- Reporting date
- 07 Mar 2025
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-35455
FORM 4
- Filing date
- 03 Jan 2025
- Reporting date
- 01 Jan 2025
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-35455
FORM 4
- Filing date
- 03 Oct 2024
- Reporting date
- 01 Oct 2024
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-35455
FORM 4
- Filing date
- 02 Apr 2024
- Reporting date
- 01 Apr 2024
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-35455
FORM 4
- Filing date
- 11 Mar 2024
- Reporting date
- 07 Mar 2024
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-35455
FORM 4
- Filing date
- 03 Jan 2024
- Reporting date
- 02 Jan 2024
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-35455
FORM 4
- Filing date
- 13 Dec 2023
- Reporting date
- 11 Dec 2023
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-35455
FORM 4
- Filing date
- 13 Sep 2023
- Reporting date
- 11 Sep 2023
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-35455
FORM 4
- Filing date
- 14 Jun 2023
- Reporting date
- 12 Jun 2023
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-35455
FORM 4
- Filing date
- 03 Apr 2023
- Reporting date
- 30 Mar 2023
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
File 001-35455
FORM 4
- Filing date
- 09 Mar 2023
- Reporting date
- 07 Mar 2023
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
3
File 001-35455
FORM 3
- Filing date
- 11 Jan 2023
- Reporting date
- 01 Jan 2023
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
About this filer
William K. MacNevin files with the SEC under CIK 0001961807. This page aggregates EDGAR filings and related ownership activity.
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.