The Bitcoin treasury company sold 18.26 million MSTR shares between Aug. 17 and Aug. 23 through its at-the-market (ATM) offering program, according to a Monday filing with the SEC, adding a new pool of cash to its balance-sheet toolkit as part of an effort to preserve flexibility.

Strategy repurchased about 1.43 million of its STRC preferred shares for $136.4 million, added $300 million to its US dollar reserve and directed the remaining proceeds to a newly launched US dollar cash account.

"The new USD Cash pool gives Strategy more time and optionality, but it does not remove those underlying obligations," said Nicolai Sondergaard, a senior research analyst at Nansen.

The newly established USD Cash pool, which currently holds $1.59 billion, will sit alongside its existing reserve (which stands at $5.1 billion reserves) bringing total cash to $6.69 billion...