Bitcoin treasury company Strategy (MSTR) did not buy or sell any bitcoin last week, leaving its total holdings unchanged at 845,050 BTC ($66.1 billion), according to an 8-K filing with the Securities and Exchange Commission on Tuesday.

Strategy's holdings remain equivalent to more than 4% of bitcoin's 21 million supply cap, and imply around $2.4 billion of paper gains at current prices.

Instead, the company opted to repurchase 1.81 million STRC preferred shares for around $176.3 million and increased its digital credit securities repurchase program to $2 billion from $1 billion.

The firm said it funded the repurchases via its USD Cash reserve. As of Sept. 7, the balances of its USD Reserve and USD Cash were $5.1 billion and $1.44 billion, respectively.

Strategy bitcoin holdings. Image: The Block.