Filer Snapshot

Dietmar Ostermann

CIK 0001179705. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity Type

Individual

Total Filings

15

Latest Filing

22 Dec 2025

Industry

n/a

Filing-backed research brief

Start with the SEC data that changes for this CIK

Latest signal: Forms 3/4/5 owner position for XOS. Each card links back to the PortfolioSavvy page where the filing evidence is closest.

Largest parsed holding

Populates from the latest parsed 13F information table.

Open holding

13D/G large stake

No recent parsed 13D/G stake row for this CIK.

Browse 13D/G

Save this filer page

Create a free account to keep this page in your watchlists. After verification, we will save it automatically and open your saved research list.

Source: SEC Forms 3/4/5

4 filed on 22 Dec 2025 for CIK 0001179705.

View Source Filing
Identity
Address
5400 Legacy Dr, H3 3 E 35, Plano, TX, 75024
SEC ownership signals

Filer intelligence

What SEC filings say about Dietmar Ostermann

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

Quick read

  • Forms 3/4/5 show insider context for XOS worth $177.4K.

SEC source mix

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

XML parsed
13F portfolio No rows yet

Quarterly institutional portfolio holdings.

Open
13D/G stakes No rows yet

Beneficial ownership and large-stake disclosures.

Open
Forms 3/4/5 2 rows

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

Open

Forms 3/4/5 insider context

XOS

18 Dec 2025

$177.4K

SOLO

26 Mar 2024

$0

Latest update

What changed recently for Dietmar Ostermann

Ownership report updated

Latest ownership report period: 18 Dec 2025. Open the source-backed page to inspect the fresh filing or facts context.

Update date

22 Dec 2025

Page type

Ownership filings

Latest period

18 Dec 2025

Ownership context was refreshed from SEC Forms 3/4/5 filed on 22 Dec 2025.

SEC filing record

CIK 0001179705 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
15
First seen
05 Sep 2002
Latest filing
22 Dec 2025
Entity
Individual

Latest Filings

Recent SEC filings for Dietmar Ostermann with direct links to document and filing folders.

4 File 001-39598

FORM 4

Filing date
22 Dec 2025
Reporting date
18 Dec 2025
SEC evidence
Open document Open filing
Next action
Verify source filing
144

144 filing

Filing date
18 Dec 2025
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
4 File 001-39598

FORM 4

Filing date
14 Jul 2025
Reporting date
10 Jul 2025
SEC evidence
Open document Open filing
Next action
Verify source filing
4 File 001-39598

FORM 4

Filing date
12 Jul 2024
Reporting date
10 Jul 2024
SEC evidence
Open document Open filing
Next action
Verify source filing
3 File 001-39598

FORM 3

Filing date
29 Mar 2024
Reporting date
26 Mar 2024
SEC evidence
Open document Open filing
Next action
Verify source filing
4 File 001-38612

OWNERSHIP DOCUMENT

Filing date
26 Mar 2024
Reporting date
26 Mar 2024
SEC evidence
Open document Open filing
Next action
Verify source filing
4 File 001-38612

OWNERSHIP DOCUMENT

Filing date
18 Mar 2024
Reporting date
15 Mar 2024
SEC evidence
Open document Open filing
Next action
Verify source filing
4 File 001-38612

OWNERSHIP DOCUMENT

Filing date
12 Dec 2023
Reporting date
08 Dec 2023
SEC evidence
Open document Open filing
Next action
Verify source filing
3 File 001-38612

3

Filing date
18 Aug 2023
Reporting date
01 Jan 2023
SEC evidence
Open document Open filing
Next action
Verify source filing
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Here you can make detailed settings or revoke your consent (in part if necessary) with effect for the future. For further information, please refer to our Privacy Policy .