Otter Tail Corp — Investor Relations & Filings
Filings indexed
846
across all filing types
Latest filing
2026-05-15
Regulatory Filings
Country
US
United States of America
Listing
US
OTTR
Otter Tail Corporation is a holding company operating through a two-platform business model. Its Electric platform, through Otter Tail Power Company, provides electricity and energy services to residential, commercial, and industrial customers across parts of Minnesota, North Dakota, and South Dakota. The Manufacturing platform consists of several companies specializing in metal fabrication, the production of custom plastic parts, and PVC pipe for various markets. The corporation focuses on a strategy of combining a high-performing, low-cost electric utility with disciplined manufacturing operations.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| 8-K | 2026-05-15 | English | |
| 10-Q - Otter Tail Corp (0001466593) (Filer) | 2026-05-06 | English | |
| 8-K - Otter Tail Corp (0001466593) (Filer) | 2026-05-05 | English | |
| 8-K - Otter Tail Corp (0001466593) (Filer) | 2026-04-15 | English | |
| 8-K - Otter Tail Corp (0001466593) (Filer) | 2026-04-14 | English | |
| SCHEDULE 13G/A - Otter Tail Corp (0001466593) (Subject) | 2026-03-27 | English |
Browse filings by year
18 years| ID | Filing | Released | Lang | Actions | |
|---|---|---|---|---|---|
|
2026
15 filings
| |||||
| 46360060 | 8-K | 2026-05-15 | English | ||
| 41927795 | 10-Q - Otter Tail Corp (0001466593) (Filer) | 2026-05-06 | English | ||
| 41387214 | 8-K - Otter Tail Corp (0001466593) (Filer) | 2026-05-05 | English | ||
| 34581596 | 8-K - Otter Tail Corp (0001466593) (Filer) | 2026-04-15 | English | ||
| 34513461 | 8-K - Otter Tail Corp (0001466593) (Filer) | 2026-04-14 | English | ||
| 33062301 | SCHEDULE 13G/A - Otter Tail Corp (0001466593) (Subject) | 2026-03-27 | English | ||
| 33013946 | 8-K - Otter Tail Corp (0001466593) (Filer) | 2026-03-23 | English | ||
| 32892198 | ARS - OTTER TAIL CORP (0001466593) (Filer) | 2026-03-02 | English | ||
| 32892197 | DEF 14A - OTTER TAIL CORP (0001466593) (Filer) | 2026-03-02 | English | ||
| 32892199 | 10-K/A - OTTER TAIL CORP (0001466593) (Filer) | 2026-02-23 | English | ||
| 32892200 | 10-K - OTTER TAIL CORP (0001466593) (Filer) | 2026-02-18 | English | ||
| 29927920 | 8-K Filing | 2026-02-17 | English | ||
| 29928513 | 4 Filing | 2026-02-12 | English | ||
| 29928231 | 4 Filing | 2026-02-12 | English | ||
| 29928128 | 4 Filing | 2026-02-12 | English | ||
Market data
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Peer group · Electric power transmission and distribution activities
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|---|---|---|---|
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Endesa S.A.
An electric utility and natural gas operator focused on cle…
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ELE | ES | Electricity, gas, steam and air… |
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Enea S.A.
An energy group that generates, distributes, and sells elec…
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ENA | PL | Electricity, gas, steam and air… |
|
ENEL AMERICAS S.A.
Major private energy company in Latin America, generating, …
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— | CL | Electricity, gas, steam and air… |
|
Enel Chile S.A.
An electricity utility engaged in the generation, transmiss…
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ENIC | CL | Electricity, gas, steam and air… |
|
Energa S.A.
Generates, distributes, and sells electricity, heat, and ga…
|
ENG | PL | Electricity, gas, steam and air… |
|
ENERGIA DE CASABLANCA S.A.
An energy company focused on electricity distribution, deli…
|
— | CL | Electricity, gas, steam and air… |
|
ENERGISA MATO GROSSO-DISTRIBUIDORA DE ENERGIA S/A
Manages electricity distribution, transmission, and generat…
|
— | BR | Electricity, gas, steam and air… |
|
ENERGISA SA
Operates in electricity distribution, transmission, generat…
|
— | BR | Electricity, gas, steam and air… |
|
Energoaqua A.S.
An energy and utilities company providing energy media and …
|
ENRGA | CZ | Electricity, gas, steam and air… |
|
ENERGY CO OF MINAS GERAIS
An integrated utility for electricity generation, transmiss…
|
CIG | BR | Electricity, gas, steam and air… |
Otter Tail Corp via the API
Pull this company's filings, identifiers, and metadata as JSON or Markdown. Authenticate with your API key, then query by company ID, ISIN, or LEI. Full schema documented in the OpenAPI spec.
Endpoints
| GET | /api/companies/31280/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=31280 | Paginated list of all filings (filterable by type, date, language) |
| GET | /api/filings/{id}/ | Single filing — metadata, document URL, processing status |
| GET | /api/filings/{id}/markdown/ | Filing content as Markdown (PDF → text/tables/figures) |
| GET | /api/isins/?company=31280 | All ISINs registered to this company |
| GET | /api/filing-types/ | Reference: every filing-type code + category |
Full reference: API reference · OpenAPI schema
cURL
$ curl https://api.financialreports.eu/api/filings/?company=31280 \ -H "x-api-key: $FR_API_KEY" \ -H "Accept: application/json"
Python
import requests r = requests.get( "https://api.financialreports.eu/api/filings/", params={"company": 31280}, headers={"x-api-key": API_KEY}, ) filings = r.json()["results"]
MCP server
// MCP server URL https://mcp.financialfilings.com/mcp // Once connected, the LLM can query this company directly: "Pull the latest 5 filings for Otter Tail Corp (id: 31280)"
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