Michael E. Koester
Co-President, Director · 5C Lending Partners Corp.
Individual
- 2025
- Sep 18, 2026
- 5
Filings (90d)
0
Purchases
0
Sales
0
Summary
Latest filing:
Michael E. Koester has 5 SEC Form 4 filings on record going back to 2025, most recently on 18 September 2026.
Recent transactions
8The latest 8 SEC Form 4 transactions reported by Michael E. Koester.
Most active insiders across the market
Michael E. Koester has no co-filers on record, so these are insiders with the largest open-market activity across the market in the last 90 days.
- Amberjack Capital Partners, L.P. - $143.55M in INVX purchases and sales in the last 90 days
- George Kurtz - $142.11M in CRWD purchases and sales in the last 90 days
- Silver Lake Partners V DE (AIV), L.P. - $141.71M in DELL purchases and sales in the last 90 days
- John Oyler - $141.24M in ONC purchases and sales in the last 90 days
- Control Empresarial de Capitales S.A. de C.V. - $140.56M in TALO purchases and sales in the last 90 days
- Burt W. Podbere - $135.04M in CRWD purchases and sales in the last 90 days
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Frequently asked questions
Who is Michael E. Koester?
Michael E. Koester is a corporate insider, tracked as Co-President, Director. InsiderAlpha holds 5 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Michael E. Koester last file a Form 4?
The most recent primary Form 4 on record is dated 18 September 2026, one of 5 filings going back to 2025.