Filer Snapshot

Michael J. Desmarais

CIK 0001925959. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity type

Individual

Total filings

1

Latest filing

02 Oct 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 CSGP. 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 02 Oct 2023 for CIK 0001925959.

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Ownership signals 1 signal
Ownership signals

SEC value by filing type

Compare filing types separately; 13F, 13D/G, and Forms 3/4/5 are different evidence sources.

Forms 3/4/5 positions$3.95M

Reporting-owner positions with enough data to estimate value.

Estimated Forms 3/4/5 position value

$3.95M

Estimated only when owner filings include enough share and price data.

Largest linked SEC positions

Largest issuer positions found across parsed 13F, 13D/G, and Forms 3/4/5 data.

CSGP
How to read these SEC values
  • Read each filing type on its own: 13F portfolios, 13D/G large stakes, and Forms 3/4/5 owner positions answer different questions.
  • Open the linked research paths when you need to verify the exact SEC filing behind a value.
Identity 1 identity field
Business address
C/O Costar Group, Inc., 1201 Wilson Blvd., Arlington, VA, 22209

Filer intelligence

What SEC filings say about Michael J. Desmarais

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 CSGP worth $3.95M.

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

CSGP

15 Mar 2026 · Chief Human Resources Officer

$3.95M
Issuer page Owner page

Latest update

What changed recently for Michael J. Desmarais

Ownership report updated

Latest ownership report period: 15 Mar 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

17 Mar 2026

Page type

Ownership filings

Latest period

15 Mar 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 17 Mar 2026.

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SEC filing record

CIK 0001925959 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
1
First seen
02 Oct 2023
Latest filing
02 Oct 2023
Entity
Individual

Observed form types

4

CIK-linked evidence first

Michael J. Desmarais SEC filings Michael J. Desmarais owner filings Open SEC filing index

Latest Filings

Showing the latest 1 of 1 SEC filings for Michael J. Desmarais.

4

4 filing

Filing date
02 Oct 2023
Reporting date
01 Oct 2023
SEC evidence
Open document Open filing
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