Filer Snapshot

William George Brumder II

CIK 0002075341. 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

01 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 TMC. Each card links back to the PortfolioSavvy page where the filing evidence is closest.

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Largest parsed holding

—

Populates from the latest parsed 13F information table.

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13D/G large stake

TMC

31 Mar 2026 · 3.4% ownership

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Source: SEC Schedule 13D/G

SCHEDULE 13G/A filed on 01 May 2026 for CIK 0002075341.

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Ownership signals CIK-linked ownership evidence from parsed SEC filings. 1 signal
Parsed SEC ownership signals

Parsed SEC ownership coverage

These bars compare filing-backed value available in each disclosure family. Read them as separate lenses, not as one combined ownership total.

Forms 3/4/5 positions$26.99M

Reporting-owner positions with enough filing detail to estimate value.

Forms 3/4/5 position value

3/4/5
$26.99M

Estimated from parsed Forms 3/4/5 when filings include enough share and price data.

Source: Forms 3/4/5Confidence: Estimated when price data is available

Largest linked holdings

Largest issuer positions linked to this CIK across parsed 13F, 13D/G, and Forms 3/4/5 records.

GPRO

Largest active 13G stakes

Passive or institutional large-stake positions disclosed in parsed Schedule 13G filings.

TMC GPRO TRON SRM OMEX HOVR
+1 morePRZO
How to read these SEC ownership signals
  • Read each filing family separately: Form 13F, Schedules 13D/G, and Forms 3/4/5 answer different SEC disclosure questions and should not be blended into one ownership total.
  • Use 13F values for visible U.S.-listed equity portfolios, 13D/G rows for large beneficial-owner stakes, and Forms 3/4/5 rows for reporting-owner positions and transactions.
  • Open the linked research path when you need the filing, CIK, issuer, CUSIP, date, or source trail behind a value.
At a glance Names, identifiers, and filing context for this profile. 1 identity field
Business address
55 E. 52 Nd Street, 28 Th Floor, New York, NY, 10055

Filer intelligence

What SEC filings say about William George Brumder II

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

  • 5 recent 13D/G stake rows found; top row is TMC at 3.4% ownership.
  • Forms 3/4/5 show insider context for GPRO worth $26.99M.

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 5 rows

Beneficial ownership and large-stake disclosures.

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Forms 3/4/5 1 rows

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

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13D/G large-stake context

TMC

31 Mar 2026 · Common Shares, without par value

3.4%
Issuer page 13D/G history

HOVR

31 Mar 2026 · Class A Ordinary Shares, no par value

1.6%
Issuer page 13D/G history

OMEX

31 Mar 2026 · Common Stock, $0.0001 par value

0.2%
Issuer page 13D/G history

PRZO

31 Mar 2026 · Ordinary Shares, par value NIS 0.02 per share

0%
Issuer page 13D/G history

Forms 3/4/5 insider context

GPRO

19 Sep 2025 · 10% owner

$26.99M
Issuer page Owner page

Latest update

What changed recently for William George Brumder II

New filing available

Latest Schedule 13D/G period: 31 Mar 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

01 May 2026

Page type

Filer profile

Latest period

31 Mar 2026

Schedule 13D/G context is visible from filings filed on 01 May 2026.

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SEC filing record

CIK 0002075341 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
02 Jul 2025
Latest filing
01 May 2026
Entity
Individual

Observed form types

SCHEDULE 13G SCHEDULE 13G/A

CIK-linked evidence first

William George Brumder II SEC filings William George Brumder II 13D/G history William George Brumder II owner filings Open SEC filing index

Latest Filings

Showing the latest 12 of 15 SEC filings for William George Brumder II.

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SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date
01 May 2026
Reporting date
Not listed
SEC evidence
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SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date
21 Apr 2026
Reporting date
Not listed
SEC evidence
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SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date
21 Apr 2026
Reporting date
Not listed
SEC evidence
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SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date
21 Apr 2026
Reporting date
Not listed
SEC evidence
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SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date
21 Apr 2026
Reporting date
Not listed
SEC evidence
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SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date
28 Nov 2025
Reporting date
Not listed
SEC evidence
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SCHEDULE 13G

SCHEDULE 13G filing

Filing date
15 Oct 2025
Reporting date
Not listed
SEC evidence
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SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date
25 Sep 2025
Reporting date
Not listed
SEC evidence
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SCHEDULE 13G

SCHEDULE 13G filing

Filing date
24 Sep 2025
Reporting date
Not listed
SEC evidence
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SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date
28 Aug 2025
Reporting date
Not listed
SEC evidence
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SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date
21 Aug 2025
Reporting date
Not listed
SEC evidence
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SCHEDULE 13G

SCHEDULE 13G filing

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