DeFi Development Corp.: reports increase in SOL holdings by 3,983

What happened

• On Oct 19, 2026, DeFi Development Corp. (“DFDV” or the “Company”) announced that during the period from Oct 12, 2026 through Oct 16, 2026, DFDV grew its SOL and SOL equivalents by approximately 3,983.
• The Company reported the following balances as of the dates indicated: Oct 9, 2026 — SOL and SOL equivalents: 2,586,282; Oct 16, 2026 — SOL and SOL equivalents: 2,590,266; % change: NM (amounts are not meaningful).
• The Company expects SOL held in treasury to be deployed through its staking, validator and onchain treasury infrastructure, subject to market conditions and risk management considerations. The Company also furnished a press release dated Oct 19, 2026 as Exhibit 99.1.

Key details

• Announcement date: Oct 19, 2026.
• Reported period for growth: Oct 12, 2026 through Oct 16, 2026.
• Reported balances: Oct 9, 2026 — 2,586,282 SOL and SOL equivalents; Oct 16, 2026 — 2,590,266 SOL and SOL equivalents.
• Growth reported: approximately 3,983 SOL and SOL equivalents; percentage change reported as NM (amounts are not meaningful).

Why it may matter

• Item reported: Item 8.01 (Other events), which covers the Company’s announcement about changes in its SOL and SOL equivalents and related disclosures, including a press release.
• This filing notes the reported change in SOL holdings and the Company’s statement about intended deployment through staking, validator and onchain treasury infrastructure.
• A filing does not show why the insider traded or why the company acted.