Michael Saylor’s Strategy took advantage of the large price swings in the company’s common shares last week to purchase $285.8 million more of Bitcoin.

Shares of Strategy gained over 4% in premarket trading.

While the stock fluctuated from losses of as much as 11% to gains of around 25% during the week, the former MicroStrategy Inc. said it sold shares through its at-the-market program to finance the crypto purchases.

Hedge funds have been driving some of the demand for the company’s convertible debt, as they seek out Strategy for trades that incorporate buying the bonds and selling the shares short, essentially betting on the underlying stock’s volatility.

The purchase, the latest in a series of almost weekly acquisitions of the cryptocurrency since late October, increased the Tysons Corner, Virginia-based firm’s holding of the digital asset to around $45 billion, or around 2.5% of all the 21 million in tokens slated to be issued. Strategy is the largest corporate owner of Bitcoin.

Strategy purchased 3,459 Bitcoin at an average price of approximately $82,618 from April 7 through April 13, according to a filing with the US Securities and Exchange Commission on Monday.

Last week, Strategy said it will register an unrealized $5.9 billion loss in the first quarter after adopting an accounting change that requires valuing the digital asset at market prices. In the first quarter, the company spent $7.79 billion on Bitcoin, according to data compiled by Bloomberg. Strategy announced nine purchases during the first quarter.

Strategy unveiled in October to plan to raise $42 billion of capital through 2027 to fund Bitcoin purchases using at-the-market stock sales and fixed-income securities.

Shares of Strategy have surged about 2,300% since Saylor began investing the company’s cash into Bitcoin as a hedge against inflation in 2020.