$86.47
+0.82%Otter Tail Corporation, together with its subsidiaries, engages in electric utility, manufacturing, and plastic pipe businesses in the United States. The company's Electric segment produces, transmits, distributes, and sells electric energy in Minnesota, North Dakota, and South Dakota; and operates as a participant in the Midcontinent Independent System Operator, Inc. markets. This segment generates electricity through coal, wind and hydro, and natural gas. It serves approximately 133,000 residential, industrial, and other commercial customers. Its Manufacturing segment engages in the contract machining, metal parts stamping, fabrication and painting, and production of plastic thermoformed horticultural containers, life science and industrial packaging, and material handling components, and extruded raw material stock for recreational vehicle, agricultural, construction, lawn and garden, and industrial and energy equipment industries. It also manufactures clamshell packing, blister packs, returnable pallets, and handling trays for shipping and storing odd-shaped or difficult-to-handle parts for customers in the horticulture, medical and life sciences, industrial, recreation, and electronics industries. The company's Plastics segment manufactures polyvinyl chloride pipes for municipal water, rural water, wastewater, storm drainage and water reclamation system, and other uses. This segment markets its products to wholesalers and distributors through independent sales representatives, company salespersons, and customer service representatives. The company was formerly known as Otter Tail Power Company and changed its name to Otter Tail Corporation in 2001. Otter Tail Corporation was founded in 1907 and is headquartered in Fergus Falls, Minnesota.
OTTR - Filing history and reports
| Filing Type | Filing Date | Period Ending | Fiscal Year | Actions |
|---|---|---|---|---|
8-K 8-K 2026 N/A | May 29, 2026 | May 28, 2026 | 2026 | |
8-K 8-K 2026 N/A | May 15, 2026 | May 15, 2026 | 2026 | |
10-Q 10-Q 2026 Q1 Q1 | May 06, 2026 | March 31, 2026 | 2026 | |
8-K 8-K 2026 N/A | May 05, 2026 | May 04, 2026 | 2026 | |
8-K 8-K 2026 N/A | April 15, 2026 | April 13, 2026 | 2026 | |
8-K 8-K 2026 N/A | April 14, 2026 | April 13, 2026 | 2026 | |
8-K 8-K 2026 N/A | March 23, 2026 | March 19, 2026 | 2026 | |
DEF 14A DEF 14A 2026 N/A | March 02, 2026 | April 13, 2026 | 2026 | |
10-K/A 10-K/A 2025 FY (Amended) FY | February 23, 2026 | December 31, 2025 | 2025 | |
10-K 10-K 2025 FY FY | February 18, 2026 | December 31, 2025 | 2025 |
Essential regulatory documents for investors
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Comprehensive annual financial report filed within 60-90 days of fiscal year-end. Includes audited financial statements, management discussion & analysis (MD&A), risk factors, and detailed business operations. The most thorough financial disclosure of the year.
Unaudited quarterly financial report filed within 40-45 days after each of the first three fiscal quarters. Provides updates on financial position, results of operations, and significant events. Essential for tracking quarterly performance trends.
Event-driven filing for material events that shareholders should know about, filed within 4 business days. Includes acquisitions, executive changes, bankruptcy, earnings releases, and other significant developments. Critical for staying informed about breaking news.
Definitive proxy statement sent to shareholders before annual meetings. Contains executive compensation details, board member information, voting matters, and corporate governance policies. Key for understanding management incentives and board composition.
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Annual report for foreign private issuers, equivalent to Form 10-K for non-U.S. companies. Filed within 4-6 months of fiscal year-end. Contains audited financials, business description, and regulatory disclosures adapted for international companies.
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