Under SEC rules, the timing of a company’s 10-K filing depends loosely on its MC at the end of Q2. Companies with an MC above $700M are classified as large accelerated filers and have 60 days to file, for AVXL it's the end of November. For those below $700M, the deadline extends beyond 60 days, into December. From 2021 to 2023, AVXL’s MC as of March 31 exceeded $700M, so its 10-Ks were filed by the end of Nov. However, the filing deadlines, for 2024 and before 2020, fall in December. The company typically files 10-K right after Q4 CC. So the extended filing deadline allows the company to move Q4 CC into Dec.