13F Filing Deadlines: 2026 Calendar

Managers subject to Section 13(f) must file within 45 days of the end of each calendar quarter. Because quarter-end dates are fixed, so are the base deadlines:

Those four dates are the whole schedule. Everything else is the rollover rule for weekends and federal holidays, covered below.

When an SEC filing deadline falls on a Saturday, Sunday, or federal holiday, it moves to the next business day. Two of the deadlines in the table above shift for exactly this reason, and both involve the mid-February date colliding with Presidents Day.

The November date has the same issue in 2026 for a simpler reason: November 14, 2026 is a Saturday, so the deadline rolls to Monday, November 16.

In principle a manager could file the day after quarter end. In practice, almost none do. Filing early means disclosing positions sooner than required, with no offsetting benefit, so the filings cluster hard against the deadline.

For anyone tracking institutional holdings, this has a useful consequence and an annoying one. The useful part: four days a year carry nearly all the new information, so you know exactly when to look. The annoying part: those days produce thousands of filings at once, and any quarter-over-quarter comparison has to wait until the full set arrives.

It also means the freshest data is at its most stale on arrival — the positions are already 45 days old the moment they become public. We unpack that staleness here.