Form 13F Filing Deadlines
Form 13F must be filed within 45 days after the end of each calendar quarter. If the deadline falls on a weekend or federal holiday, the filing is due the next business day.
2026 Filing Calendar
| Quarter | Period Ending | Filing Deadline | Status |
|---|---|---|---|
| Q4 2025 | December 31, 2025 | February 14, 2026 | Passed |
| Q1 2026 | March 31, 2026 | May 15, 2026 | 27 days |
| Q2 2026 | June 30, 2026 | August 14, 2026 | Upcoming |
| Q3 2026 | September 30, 2026 | November 16, 2026 | Upcoming |
| Q4 2026 | December 31, 2026 | February 16, 2027 | Upcoming |
Weekend/Holiday Adjustments
When the 45-day deadline falls on a weekend or federal holiday, the due date moves to the next business day. The calendar above reflects these adjustments for 2026.
Understanding the 45-Day Rule
The SEC requires Form 13F to be filed within 45 calendar days after the last day of the calendar quarter:
Jan 1 - Mar 31
Due: May 15
Apr 1 - Jun 30
Due: Aug 14
Jul 1 - Sep 30
Due: Nov 14
Oct 1 - Dec 31
Due: Feb 14
Late Filing Consequences
Filing Form 13F late can result in:
- SEC enforcement inquiry
- Requirement to file a late filing notification
- Potential civil monetary penalties for repeated violations
- Reputational concerns (late filings are publicly visible)
If you anticipate difficulty meeting a deadline, consult with securities counsel about your options.
Amendment Deadlines
If you discover errors after filing, you should file an amended 13F (Form 13F-HR/A) as soon as practicable. There's no specific deadline for amendments, but the SEC expects prompt correction of material errors.
Preparing Ahead
To ensure timely filing:
- Week 1-2: Reconcile holdings data from your custodian/prime broker
- Week 2-3: Verify CUSIPs against the SEC's 13(f) list
- Week 3-4: Generate and validate your XML file
- Week 4-5: Submit through EDGAR with buffer time for issues