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AI brief of an SEC Form 8-K · Otter Tail (OTTR)

Otter Tail Power sells $170 million of senior unsecured notes in private placement

Neutral Impact 3 of 5 financing Written later

On March 19, 2026, subsidiary Otter Tail Power Company entered a Note Purchase Agreement to issue $170 million of senior unsecured notes to private purchasers. The company says proceeds will fund capital expenditures, refinance existing debt and support general corporate purposes, and the agreement adds debt-to-capitalization and priority debt limits that apply each quarter.

Key points

  • Series 2026A notes: $100 million at 5.33%, due March 19, 2036, issued March 19, 2026
  • Series 2026B notes: $70 million at 6.04%, due June 4, 2056, expected to be issued June 4, 2026, subject to closing conditions
  • Financial covenants cap interest-bearing debt at 65% of total capitalization and priority indebtedness at 20% of total capitalization, tested quarterly

The filing

CompanyOtter Tail (OTTR)
Form8-K, current report
Filed with the SECMar 23, 2026, 9:40 AM ET
Accession number0001466593-26-000034

Items reported: 1.01 Material Definitive Agreement2.03 New Direct Financial Obligation

Read the filing on SEC.gov ↗

Written by AI on Nov 8, 2026, 1:38 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on March 23, 2026.

Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.