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Filing
13F-HR
13F-HR
0000883597-26-000008
·
TETRAD CORP
Filer
Filing index
Filing metadata
Accession number
0000883597-26-000008
Form type
13F-HR
Filer
TETRAD CORP
CIK
CIK 883597
Filed
Oct 06, 2026
Reporting period
Sep 30, 2026
Description
Institutional holdings
Documents
Filing index
0000883597-26-000008-index.htm
Complete submission
0000883597-26-000008.txt
All documents
directory listing
Filed by
TETRAD CORP
CIK 883597
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