Strive (NASDAQ: ASST) added 1,355 Bitcoin to its treasury for $107.7 million, extending its run as the busiest large-scale Bitcoin buyer in recent weeks. Chief Executive Matt Cole announced the purchase on Monday, September 21, 2026, in a post on X, and the company disclosed the acquisition in a securities filing.

The purchase lifts Strive's total holdings to 26,355 BTC, a stash that has grown almost vertically since the company began buying Bitcoin after its September 2025 merger, taking it from zero to a top-five corporate position in barely more than a year.

ASST shares were up more than 6% in pre-market trading following the announcement, riding a month-long rally that carried the stock past $30 on Friday, September 18.

Who is leading Bitcoin accumulation?

Cole said Strive paid an average of $79,475 per coin for the latest 1,355 Bitcoin. The buy outsized the week's other headline purchase: Michael Saylor's Strategy (NASDAQ: MSTR), the largest corporate holder of Bitcoin, acquired 950 BTC for nearly $76 million on the same day as the Strive disclosure, its first purchase since August 31.

Despite Strive's recent acceleration, Strategy remains in a league of its own. Its 846,000 BTC stash, valued at $71.9 billion, stands well clear of Twenty One Capital, the next-largest holder on the accumulation list, at 43,514 BTC — a gap of nearly 20 to 1 that illustrates how concentrated corporate Bitcoin treasuries remain at the very top. Strive ranks fifth with 26,355 BTC.

Where Strive holds a clear edge is the pace of its week-to-week purchases. The company bought 1,800 coins in late August, followed by 1,375 the next week and a 469 BTC purchase that pushed its holdings past the 25,000 mark, before this week's 1,355 BTC acquisition.

How Strive funds its Bitcoin buying

Strive has leaned almost entirely on SATA, its Variable Rate Series A Perpetual Preferred Stock, which pays a 13% dividend every business day and crossed $1 billion in notional value earlier this month. The prior week's 469 BTC purchase was funded entirely through SATA.

Cole said warrant exercises began last week and brought in $21.2 million in gross proceeds. Counting that new capital, SATA accounted for 57.7% of total funds raised, a smaller share than the all-preferred weeks that preceded it. The warrants give Strive a second fundraising lever without leaning harder on its daily-paying preferred, broadening a funding mix that had previously rested almost entirely on a single instrument.

Markets are moving in on ASST

ASST has been on a strong run since closing at $12.80 on August 18. It traded above $30 by September 18, a gain of more than 120% in a month, according to Google Finance data. Year to date, the stock is up roughly 90%, with a market value of approximately $2.5 billion to $2.6 billion — modestly above the roughly $2.2 billion market value of its Bitcoin holdings.

The rally has also lifted SATA back to its $100 par value, keeping the at-the-market program that funds the coin purchases open for business. At-the-market programs allow an issuer to sell newly issued shares into the open market at prevailing prices over time rather than through a single fixed-price offering.

The broader backdrop has helped. Bitcoin tapped $85,000 on Monday for the first time since January, its highest level in months — above the $79,475 average Strive paid for this week's tranche. Strive's 26,355 coins are worth about $2.2 billion at current prices, according to Bitcoin Treasuries.

With purchases now landing week after week, upcoming announcements and filings are where the next datapoints will surface: the size of each new buy, how much SATA versus warrant capital is behind it, and whether SATA holds its $100 par value, which keeps the at-the-market program open.