Filer Snapshot

Mr. Robert W. Dean II

CIK 0001445300. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity type

Individual

Total filings

17

Latest filing

28 May 2026

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 MPWR. 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

4 filed on 28 May 2026 for CIK 0001445300.

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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$9.77M

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

Forms 3/4/5 position value

3/4/5
$9.77M

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.

MPWR
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
3120 Hansen Way, M/S D 083, Palo Alto, CA, 93404-1030

Filer intelligence

What SEC filings say about Mr. Robert W. Dean 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

  • Forms 3/4/5 show insider context for MPWR worth $9.77M.

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 1 rows

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

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Forms 3/4/5 insider context

MPWR

26 May 2026 · Interim CFO

$9.77M
Issuer page Owner page

Latest update

What changed recently for Mr. Robert W. Dean II

Ownership report updated

Latest ownership report period: 26 May 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

28 May 2026

Page type

Ownership filings

Latest period

26 May 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 28 May 2026.

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SEC filing record

CIK 0001445300 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
17
First seen
16 Sep 2008
Latest filing
28 May 2026
Entity
Individual

Observed form types

4 144 3

CIK-linked evidence first

Mr. Robert W. Dean II SEC filings Mr. Robert W. Dean II owner filings Open SEC filing index

Latest Filings

Showing the latest 8 of 8 SEC filings for Mr. Robert W. Dean II.

4 File 000-51026

PRIMARY DOCUMENT

Filing date
28 May 2026
Reporting date
26 May 2026
SEC evidence
Open document Open filing
Next action
Verify source filing
144

144 filing

Filing date
26 May 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
4 File 000-51026

PRIMARY DOCUMENT

Filing date
20 May 2026
Reporting date
18 May 2026
SEC evidence
Open document Open filing
Next action
Verify source filing
144

144 filing

Filing date
18 May 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
4 File 000-51026

PRIMARY DOCUMENT

Filing date
15 May 2026
Reporting date
13 May 2026
SEC evidence
Open document Open filing
Next action
Verify source filing
3 File 000-51026

PRIMARY DOCUMENT

Filing date
09 Mar 2026
Reporting date
27 Feb 2026
SEC evidence
Open document Open filing
Next action
Verify source filing
4 File 000-25393

PRIMARY DOCUMENT

Filing date
14 May 2010
Reporting date
14 May 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
4 File 000-25393

PRIMARY DOCUMENT

Filing date
17 Mar 2010
Reporting date
15 Mar 2010
SEC evidence
Open document Open filing
Next action
Verify source filing
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