Annexon, Inc. 8-K

What Happened
Annexon, Inc. (ANNX) filed a Form 8-K on May 7, 2026 announcing financial results for the quarter ended March 31, 2026. The company furnished a press release titled “Annexon Reports First Quarter 2026 Financial Results, Portfolio Progress and Key Anticipated Milestones” as part of the filing.

Key Details

• Filing date: May 7, 2026; quarter reported: Q1 ended March 31, 2026.
• The press release is furnished as Exhibit 99.1 to the 8-K.
• The cover page interactive XBRL file is included (Exhibit 104).
• The filing is signed by Jennifer Lew, Executive Vice President and Chief Financial Officer.

Why It Matters
This 8-K notifies investors that Annexon has publicly reported its quarterly operating and financial results and provided forward-looking portfolio and milestone information in a press release. Retail investors should read the furnished press release and any accompanying XBRL data for the specific financial figures (revenue, expenses, cash position, and progress on pipeline milestones) to assess near-term performance and cash runway.