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latestOpenAPI 3.0.02026-08-2010141507.9 KB

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SEC Filings

Filing calendar

Stock Pro

Predicts upcoming periodic filing dates (10-K, 10-Q, DEF 14A) based on historical patterns from the last 5 years. Returns expected dates with confidence levels and the historical filing pattern (typical months, average days after period end).

Confidence levels:

  • high — Filing dates have been very consistent (±7 days standard deviation)
  • medium — Some variation in filing dates (±14 days)
  • low — Significant variation in filing dates
get/api/filings/calendar

Query parameters

symbolstring

Stock ticker symbol. Identify the entity by exactly one of: symbol, cik, cusip, composite_figi, or share_class_figi. At least one is required.

cikinteger

SEC Central Index Key (CIK).

cusipstring

CUSIP identifier (9 characters).

composite_figistring

Composite OpenFIGI identifier.

share_class_figistring

Share-class OpenFIGI identifier.

Response

Filing calendar with predictions

historicalPatternobject

Historical filing patterns by form type

Example response

{
  "nextExpected": [
    {
      "type": "10-Q",
      "expectedDate": "2025-05-02",
      "basedOn": "2025-01-31"
    }
  ],
  "historicalPattern": {
    "10-K": {
      "typicalMonths": [
        11
      ],
      "avgDaysAfterPeriodEnd": 32
    },
    "10-Q": {
      "typicalMonths": [
        2,
        5,
        8
      ],
      "avgDaysAfterPeriodEnd": 30
    }
  }
}