Filer Snapshot

William M. Webster IV

CIK 0001262866. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity type

Individual

Total filings

6

Latest filing

30 Jun 2023

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

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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

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

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Source: SEC Forms 3/4/5

3 filed on 30 Jun 2023 for CIK 0001262866.

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

SEC filing family snapshot

These bars compare visible SEC-reported value by filing family. They should be read side by side, not added into one ownership total.

Forms 3/4/5 positions$8.7M

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

Estimated owner position value

3/4/5
$8.7M

Estimated from parsed Forms 3/4/5 when the filing includes enough shares and price data.

Largest linked issuer positions

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

GBDC Golub Capital BDC 3, Inc.
How to read this ownership snapshot
  • Read each filing family separately: 13F portfolios, 13D/G large stakes, and Forms 3/4/5 owner positions are different SEC disclosure regimes.
  • Open the linked research path when you need the filing behind a value.
Identity Who this page is about. 1 identity field
Business address
120 N Lasalle St, Suite 3300, Chicago, IL, 60602

Filer intelligence

What SEC filings say about William M. Webster IV

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

  • Forms 3/4/5 show insider context for GBDC worth $6.56M.

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 No rows yet

Beneficial ownership and large-stake disclosures.

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Forms 3/4/5 5 rows

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

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Forms 3/4/5 insider context

GBDC

20 Dec 2024

$6.56M
Issuer page Owner page

Golub Capital BDC 3, Inc.

03 Jun 2024

$2.14M
Issuer page Owner page

Golub Capital Private Income Fund I

30 Dec 2025

Issuer page Owner page

Golub Capital Private Income Fund S

30 Dec 2025

Issuer page Owner page

Latest update

What changed recently for William M. Webster IV

Ownership report updated

Latest ownership report period: 30 Dec 2025. Open the source-backed page to inspect the fresh filing or facts context.

Update date

30 Dec 2025

Page type

Ownership filings

Latest period

30 Dec 2025

Ownership context was refreshed from SEC Forms 3/4/5 filed on 30 Dec 2025.

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SEC filing record

CIK 0001262866 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
6
First seen
30 Aug 2021
Latest filing
30 Jun 2023
Entity
Individual

Observed form types

3 4

CIK-linked evidence first

William M. Webster IV SEC filings William M. Webster IV owner filings Open SEC filing index

Latest Filings

Showing the latest 6 of 6 SEC filings for William M. Webster IV.

3

3 filing

Filing date
30 Jun 2023
Reporting date
30 Jun 2023
SEC evidence
Open document Open filing
Next action
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4

4 filing

Filing date
10 Apr 2023
Reporting date
06 Apr 2023
SEC evidence
Open document Open filing
Next action
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4

4 filing

Filing date
16 Feb 2023
Reporting date
31 Aug 2020
SEC evidence
Open document Open filing
Next action
Verify source filing
3

3 filing

Filing date
31 May 2022
Reporting date
31 May 2022
SEC evidence
Open document Open filing
Next action
Verify source filing
3

3 filing

Filing date
31 May 2022
Reporting date
31 May 2022
SEC evidence
Open document Open filing
Next action
Verify source filing
3

3 filing

Filing date
30 Aug 2021
Reporting date
30 Aug 2021
SEC evidence
Open document Open filing
Next action
Verify source filing
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