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SEC Form 13F

TETRAD CORP 13F Holdings

Inspect TETRAD CORP's 2026-06-30 SEC 13F positions, public filing date, amendments and original receipt.

As of 2026-07-07T03:59:59.999Z

Report period
2026-06-30
Publicly available
2026-07-07
Reported value
$1,045,631,518
Positions
3
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Disclosed positions

Largest disclosed position values

Scale: 0 to 962,310,000 USD · zero baseline

Largest disclosed position values

  • BRK.B · CL B NEW+962,311,518 USD
  • USB · COM NEW+42,884,000 USD
  • EPD · COM+40,436,000 USD

Reported underlying-position values for 2026-06-30, publicly available 2026-07-07. Put/call values are not option premiums; this subset is not a complete portfolio allocation. Exact issuer, class and unit remain in the table.

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BERKSHIRE HATHAWAY INC DELBRK.BCL B NEW$962,311,5181,923,123SHNone
US BANCORP DELUSBCOM NEW$42,884,000710,000SHNone
ENTERPRISE PRODS PARTNERS LPEPDCOM$40,436,0001,100,000SHNone

Largest 50 positions by reported value; the filing may contain more positions.

Read one actual disclosure before using it

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BERKSHIRE HATHAWAY INC DELBRK.BCL B NEW$962,311,5181,923,123SHNone

First displayed source row from Disclosed positions. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-06-30 and its public availability date is 2026-07-07. Subtracting those calendar dates gives 7 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

Read the amount together with its Unit and Option columns. A reported put or call position is not an option premium paid, and a quarterly holding is not a purchase made on its public filing date. Check every accession in the effective amendment lineage below: a retained holding can originate in an earlier filing rather than the latest linked amendment.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

How amendments affect these holdings

This view uses 1 effective filing version(s). A restatement replaces the previous book; a new-holdings amendment adds positions. 0 positions lack a resolved ticker and 0 positions are put or call entries.

The displayed holdings combine the effective filing versions listed here. The latest receipt linked below identifies the current projection version; it is not proof that every retained holding originated in that latest amendment. Inspect all effective accessions when verifying a position's source.

A 13F is a delayed quarterly snapshot of disclosed holdings. It is not a complete trade ledger and does not reveal every position in a manager's portfolio. Option values refer to the reported underlying position rather than a traded option premium.

Show the table · 1 row, 2 columns
Effective SEC accessionRole in this view
0000883597-26-000003Latest effective version

Quarter end and public filing date

Use the filing's public availability date when constructing a historical observation. The quarter-end report period is earlier and cannot be substituted for when the public learned the holdings.