Subject: Re: More OXY
"Maybe found some loose change in the office sofa."

Footnote in the SEC Filing:

"The shares of the issuer's preferred stock reported on this form were issued on August 8, 2019 and are held by Berkshire indirectly through its subsidiary, National Indemnity Company. Between June 30, 2023 and September 29, 2023, the issuer redeemed a total of 7,067 shares of Series A Preferred Stock at the contractually specified redemption price of $110,000 per share."

https://www.sec.gov/Archives/e...

OXY are slowly redeeming the 8% preferreds.  Buffett likely taking the proceeds and buying more common.