Entity type
Individual
Filer Snapshot
Mark A. McCollum
CIK 0001215888. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.
Total filings
3
Latest filing
15 Aug 2022
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 WLK. Each card links back to the PortfolioSavvy page where the filing evidence is closest.
Latest 13F portfolio
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No parsed 13F portfolio row yet.
Browse latest 13FLargest parsed holding
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Populates from the latest parsed 13F information table.
Open holding13D/G large stake
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No recent parsed 13D/G stake row for this CIK.
Browse 13D/GInsider / owner context
WLK
08 Aug 2025 ยท $760.1K
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Source: SEC Forms 3/4/5
View source filing
4 filed on 15 Aug 2022 for CIK 0001215888.
- Ownership signals
-
Filing-family value snapshot
Compare filing families separately; 13F, 13D/G, and Forms 3/4/5 are different evidence sources.
Forms 3/4/5 positions$1.32MReporting-owner positions with enough data to estimate value.
Estimated Forms 3/4/5 owner-position value
$1.32MEstimated only when reporting-owner filings include enough share and price data.
Largest linked issuer positions
Largest issuer positions linked to this CIK across parsed 13F, 13D/G, and Forms 3/4/5 data.
WLK SDRL OKEHow to read this ownership snapshot
- Read each filing family separately: 13F portfolios, 13D/G large stakes, and Forms 3/4/5 owner positions answer different questions.
- Open the linked research paths to verify the exact SEC filing behind a value.
- Business address
- 2801 Post Oak Blvd., Suite 600, Houston, TX, 77002
Ownership signals
CIK-linked ownership evidence from parsed SEC filings.
1 signal
Identity
Who this page is about.
1 identity field
Filer intelligence
What SEC filings say about Mark A. McCollum
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 WLK worth $760.1K.
SEC source mix
Counts show available parsed rows, not one combined ownership total.
Forms 3/4/5 insider context
WLK
08 Aug 2025
SDRL
14 May 2026
OKE
20 May 2026
MRO
22 Nov 2024
Latest update
What changed recently for Mark A. McCollum
Latest ownership report period: 20 May 2026. Open the source-backed page to inspect the fresh filing or facts context.
Update date
22 May 2026
Page type
Ownership filings
Latest period
20 May 2026
Ownership context was refreshed from SEC Forms 3/4/5 filed on 22 May 2026.
SEC filing record
CIK 0001215888 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
3
First seen
16 Aug 2021
Latest filing
15 Aug 2022
Entity
Individual
Observed form types
4
CIK-linked evidence first
Latest Filings
Showing the latest 3 of 3 SEC filings for Mark A. McCollum.
4
4 filing
- Filing date
- 15 Aug 2022
- Reporting date
- 12 Aug 2022
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 04 Mar 2022
- Reporting date
- 03 Mar 2022
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing
4
4 filing
- Filing date
- 16 Aug 2021
- Reporting date
- 13 Aug 2021
- SEC evidence
- Open document Open filing
- Next action
- Verify source filing