Capital B purchased 13 Bitcoin for €0.97 million, an average of €74,364 per Bitcoin, according to a press release the Paris-listed company published on September 28th.

The acquisition raises the treasury held by Capital B and its subsidiary, Capital B Luxembourg, to 3,538 Bitcoin.

Across all purchases, the company has spent €310.6 million on its reserve, for an average cost of €87,805 per Bitcoin.

Based on the Bitcoin closing price from the prior trading day, Capital B valued those holdings at approximately €259.9 million.

The purchase was funded through Capital B's at-the-market (ATM) program with TOBAM, a Paris-based asset manager whose funds buy newly issued shares at prices set by a formula in the agreement.

Three TOBAM funds requested 172,978 new shares between September 14th and September 22nd at an average of €5.68 each, raising about €0.98 million.

Capital B reported that the issue price was a 3.8% premium to the stock's closing price on the trading day before the announcement.

BTC Yield, the company's measure of change in Bitcoin held per fully diluted share, rose to 2.20% year to date from 2.19% on September 14th.

Holdings per fully diluted share stood at 7,368.5 satoshis, up from 7,368 two weeks earlier.

The company also reported a year-to-date BTC Gain of 62.1 Bitcoin.

Capital B holds an additional 61 Bitcoin for operational needs, which it keeps separate from its treasury reserve and excludes from its performance indicators.

Swissquote Bank Europe executed the purchase and remains the company's sole Bitcoin custodian, using custody technology from Taurus.

Blockstream CEO Adam Back, who has previously backed Capital B through its B-04 convertible bonds, held 17.54% of the company's ordinary shares as of the release.