A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.

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New filings appear as the SEC updates EDGAR, and older records can vary by availability.

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Updates follow new EDGAR submissions and periodic data refreshes.

Filer Snapshot

David M. Leuschen

CIK 0001222726. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity type

Individual

Total filings

Latest filing

04 May 2026

Industry

n/a

Filing-backed research brief

Start with the SEC data that changes for this CIK

Latest signal: 13D/G stake for SLDP. Each card links back to the PortfolioSavvy page where the filing evidence is closest.

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Latest 13F portfolio

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Largest parsed holding

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Populates from the latest parsed 13F information table.

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13D/G large stake

SLDP

19 Sep 2025 · 4.8% ownership

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Insider / owner context

SLDP

25 Jan 2023 · $4.86M

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Source: SEC Forms 3/4/5

4 filed on 04 May 2026 for CIK 0001222726.

View Source Filing

Business address: C/O Riverstone Holdings, 712 Fifth Avenue, 36 Th Floor, New York, NY, 10019
Parsed ownership coverage: Form 3/4/5 holdings value
$4.86M
Estimated from parsed insider ownership filings when values are available.
Top disclosed positions: SLDP
Schedule 13D stakes: SLDP

Filer intelligence

What SEC filings say about David M. Leuschen

A compact read of parsed XML filings. 13F, 13D/G, and Forms 3/4/5 are shown separately because they answer different ownership questions.

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Quick read

1 recent 13D/G stake row found; top row is SLDP at 4.8% ownership.
Forms 3/4/5 show insider context for SLDP worth $4.86M.

SEC source mix

Counts show available parsed rows, not one combined ownership total.

XML parsed

13F portfolio No rows yet

Quarterly institutional portfolio holdings.

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13D/G stakes 1 rows

Beneficial ownership and large-stake disclosures.

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Forms 3/4/5 2 rows

Officer, director, and 10% owner holdings or transactions.

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13D/G large-stake context

SLDP

19 Sep 2025 · Common Stock, par value $0.0001

4.8%

Issuer page 13D/G history

Forms 3/4/5 insider context

SLDP

25 Jan 2023 · 10% owner

$4.86M

Issuer page Owner page

MTNE-UN

04 May 2026 · Chairman and CEO · 10% owner

Issuer page Owner page

Latest update

What changed recently for David M. Leuschen

New filing available

Latest Schedule 13D/G period: 19 Sep 2025. Open the source-backed page to inspect the fresh filing or facts context.

Update date

23 Sep 2025

Page type

Filer profile

Latest period

19 Sep 2025

Schedule 13D/G context is visible from filings filed on 23 Sep 2025.

Open filer profile Browse recent public updates

SEC filing record

CIK 0001222726 filing coverage

Start with this filing record, then use the linked ownership pages when parsed 13F, 13D/G, Forms 3/4/5, or facts data exists for this CIK.

SEC filings

First seen

20 May 2003

Latest filing

04 May 2026

Entity

Individual

Observed form types

4 3 SCHEDULE 13D/A 3/A 5 4/A

Primary evidence

Open SEC filing index David M. Leuschen SEC filings David M. Leuschen 13D/G history David M. Leuschen owner filings

Latest Filings

Showing the latest 12 of 82 SEC filings for David M. Leuschen.

Open full filing history

4 File 001-43264

4

Filing date: 04 May 2026
Reporting date: 04 May 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-43264

3

Filing date: 30 Apr 2026
Reporting date: 30 Apr 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13D/A

SCHEDULE 13D/A filing

Filing date: 23 Sep 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SCHEDULE 13D/A

SCHEDULE 13D/A filing

Filing date: 21 Aug 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37363

OWNERSHIP DOCUMENT

Filing date: 09 Dec 2024
Reporting date: 06 Dec 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37697

OWNERSHIP DOCUMENT

Filing date: 21 Dec 2023
Reporting date: 21 Dec 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-35380

4

Filing date: 21 Nov 2023
Reporting date: 17 Nov 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-41861

4

Filing date: 13 Nov 2023
Reporting date: 13 Nov 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

3/A File 001-41861

3/A

Filing date: 09 Nov 2023
Reporting date: 08 Nov 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-35380

3

Filing date: 09 Nov 2023
Reporting date: 31 Oct 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

3 File 001-41861

3

Filing date: 08 Nov 2023
Reporting date: 08 Nov 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4 File 001-37363

OWNERSHIP DOCUMENT

Filing date: 20 Jun 2023
Reporting date: 15 Jun 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

David M. Leuschen

Start with the SEC data that changes for this CIK

What SEC filings say about David M. Leuschen

Quick read

SEC source mix

13D/G large-stake context

Forms 3/4/5 insider context

What changed recently for David M. Leuschen

CIK 0001222726 filing coverage

Latest Filings

4

3

SCHEDULE 13D/A filing

SCHEDULE 13D/A filing

OWNERSHIP DOCUMENT

OWNERSHIP DOCUMENT

4

4

3/A

3

3

OWNERSHIP DOCUMENT

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