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GREAT NORTHERN IRON ORE PROPERTIES: filings

Every GREAT NORTHERN IRON ORE PROPERTIES annual and quarterly report in the SEC record with the published financial measures it tagged, 15 filings, each linked to its SEC index.

Filing record ends 2015-02-26

The latest filing in this captured record is a 10-K filed 2015-02-26. No later filing is in the SEC companyfacts record captured on 2026-09-23. GREAT NORTHERN IRON ORE PROPERTIES may have stopped filing, merged, or changed its reporting entity; nothing on this page describes its current status. Values are as reported at the time.

Filings with published measures

Each page shows what one filing reported, as tagged in that filing, with the periods it covered. Later filings can restate a value; the company overview shows the latest-filed value per period.

FormFiledFiscal periodMeasuresFactsSEC accession
10-K2015-02-26fiscal FY 201418620000897101-15-000249
10-Q2014-10-23fiscal Q3 201416430000897101-14-001539
10-Q2014-07-18fiscal Q2 201419490000897101-14-001020
10-Q2014-04-29fiscal Q1 201418400000897101-14-000539
10-K2014-02-20fiscal FY 201321730000897101-14-000198
10-Q2013-10-24fiscal Q3 201318470000897101-13-001568
10-Q2013-07-19fiscal Q2 201318470000897101-13-001081
10-Q2013-04-25fiscal Q1 201317380000897101-13-000575
10-K2013-02-22fiscal FY 201220690000897101-13-000217
10-Q2012-10-24fiscal Q3 201218440000897101-12-001811
10-Q2012-07-20fiscal Q2 201216400000897101-12-001206
10-Q2012-04-26fiscal Q1 201216340000897101-12-000643
10-K2012-02-17fiscal FY 201119510000897101-12-000229
10-Q2011-10-25fiscal Q3 201116380000897101-11-001807
10-Q2011-07-21fiscal Q2 201116380000897101-11-001281

Inspect the source

Entity
GREAT NORTHERN IRON ORE PROPERTIES / CIK 0000043410
Captured
SEC response SHA-256
71c42bd7642d43f6195c7a7796e5489fadd07bde6ecc5bb6c403412a5edf001b

Current SEC company facts · Download the original response snapshot (gzip) · Download the selected JSON

Every published concept a filing tagged, with the periods it covered, as reported in that filing at capture time. Forms 10-K, 10-K/A, 10-Q, 10-Q/A, 20-F, 20-F/A, 40-F, 40-F/A. A filing page needs at least 8 published concepts. Later filings can restate these values; the company history pages show the latest-filed value per period.

Public company accounting reference, not market prices, returns, an investment recommendation, or ALPHAC performance. Validate a separately constructed return series with the validation API; accounting values are not returns.

Use this in research

A financial period ends before its results become public. Use the filing date as a minimum availability boundary, inspect amendments, and retain the original filing vintage when testing historical signals. This latest-filed selection can contain information unavailable at the time.

These pages do not supply prices, total-return histories, corporate-action adjustments or a tradable universe. Build those inputs separately before evaluating a strategy. A profitable backtest can still reflect selection bias or costs that were left out.

Research methodology · Execution and cost assumptions · Check backtest overfitting

Build with the open-source tools

Use these accounting records as inspectable inputs. When you have constructed a return series, the validation tools can help test its statistical evidence and preserve the result with its limitations.

Read the published dataset with Python
import json
from urllib.request import urlopen

with urlopen("https://canlicapital.com/company-data/0000043410.json") as response:
    record = json.load(response)
print(record["fetched_at"])
print(record["policy"])
for concept in record["concepts"]:
    print(concept["tag"], next(iter(concept["observations"])))