Strive Tops 25,000 BTC; DeFi Development Corp Lines Up $300M Preferred-Share ATM to Buy More SOL

September 15, 2026 (UTC+8) — Publicly listed crypto treasury and mining firms stepped up balance-sheet activity on Sept. 14, underscoring a market phase increasingly defined by milestone holdings and new financing playbooks. Strive (NASDAQ: $ASST) disclosed additional Bitcoin purchases that lift its BTC treasury beyond the 25,000 mark while keeping liquidity above $200 million. Solana-focused treasury firm DeFi Development Corp (NASDAQ: $DFDV) expanded its SOL position by more than 55,000 tokens and unveiled a $300 million perpetual preferred-stock at-the-market (ATM) program aimed at funding future SOL buys. Mining company BitMine added more than 27,000 ETH in a week, taking reported total assets to $15.8 billion. In Europe, France-listed Capital B (Euronext: $ALCAP) continued its steady accumulation with a small BTC top-up. Strive: 469 BTC added; cash and liquid reserves remain sizable According to a Form 8-K filing with the U.S. SEC, Strive bought 469 BTC between Sept. 8 and Sept. 11 at an average price of about $77,954. The purchase brings the company's total Bitcoin holdings to more than 25,000 BTC. As of Sept. 11, Strive also reported holdings of 505,000 shares of Strategy STRC preferred stock (fair value approximately $49.81 million) and $204.2 million in cash, pairing continued accumulation with substantial liquidity. DFDV: SOL holdings rise to ~2.3889 million; $300M Series C perpetual preferred ATM launched DeFi Development Corp said it increased SOL and SOL-equivalent holdings by 55,491 since Aug. 27, taking its cumulative position to about 2.3889 million SOL and equivalents. The company also announced a variable-rate Series C perpetual preferred stock ATM program (ticker: CHAD) of up to $300 million, with R.F. Lafferty & Co. acting as the exclusive agent. The expected issuance price is not less than $10 per share in par value. The program is intended to provide a flexible public-market funding channel for additional SOL purchases. BitMine: +27,180 ETH in a week; staking and liquidity metrics highlighted BitMine reported buying an additional 27,180 ETH last week, bringing total Ethereum holdings to 5,956,378 ETH as of Sept. 13, which it said represents roughly 4.9% of global circulating supply. The company reported total holdings of crypto assets, cash, and equity investments of $15.8 billion, including $549 million in cash and marketable securities. It also reported more than 5.06 million ETH staked, producing an annualized staking yield of $334 million. Capital B: incremental BTC buying continues Capital B disclosed the routine purchase of 4 additional BTC, lifting its total holdings to 3,525 BTC. The Sept. 14 disclosures point to an evolution in listed crypto treasury models—from straightforward accumulation to more complex structures that combine spot-market positioning, capital-markets issuance tools such as perpetual preferred stock ATMs, and on-chain staking-driven cash flow. Source: Cryptocurrency-related stock news database, compiled from global company announcements and SEC/TSE disclosure filings.