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as of 03-06-2026 3:30pm EST

$90.12
+$0.85
+0.96%
Stocks Utilities Electric Utilities: Central Nasdaq

Otter Tail Corp is a U.S. energy company that operates in the electric (produces and sells electricity), manufacturing (fabricates metal components), and plastics segments (pipes for water uses). The company conducts its operations and acquires the majority of its revenue in the U.S. in the states of Minnesota, South Dakota, and North Dakota. The majority of the company's revenue is derived from the Electric segment and commercial customers, although it generates revenue from residential and industrial customers, as well.

Founded: 1907 Country:
United States
United States
Employees: 2198 City: FERGUS FALLS
Market Cap: 3.8B IPO Year: 2009
Target Price: N/A AVG Volume (30 days): 273.1K
Analyst Decision: N/A Number of Analysts: N/A
Dividend Yield:
2.59%
Dividend Payout Frequency: quarterly
EPS: 6.55 EPS Growth: -8.65
52 Week Low/High: $71.79 - $90.11 Next Earning Date: 05-20-2026
Revenue: $1,299,640,000 Revenue Growth: -2.28%
Revenue Growth (this year): 2.37% Revenue Growth (next year): 2.85%
P/E Ratio: 13.65 Index: N/A
Free Cash Flow: 97.9M FCF Growth: +4.08%

AI-Powered OTTR Daily Prediction

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AI Recommendation

hold
Model Accuracy: 69.81%
69.81%
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Disclaimer: This prediction is generated by an AI model and should not be considered as financial advice. Always conduct your own research and consult with financial professionals before making investment decisions.

Earnings Transcripts

SEC 8-K filings with transcript text

View All
2025
Q4

Q4 2025 Earnings

8-K BUY

Feb 17, 2026 · 96% conf.

AI Prediction BUY

1D

+0.89%

$87.45

5D

+4.51%

$90.59

20D

+0.71%

$87.29

Price: $86.68 Prob +5D: 98% AUC: 1.000
0001466593-26-000002

ottr-202602160001466593false00014665932026-02-162026-02-16

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 16, 2026

OTTER TAIL CORPORATION

(Exact name of registrant as specified in its charter)

Minnesota (State or other jurisdiction of incorporation or organization) 0-53713 (Commission File Number) 27-0383995 (I.R.S. Employer Identification No.)

215 South Cascade Street, P.O. Box 496, Fergus Falls, MN 56538-0496 (Address of principal executive offices, including zip code) (866) 410-8780 (Registrant’s telephone number, including area code) Not Applicable (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Securities Exchange Act of 1934:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Shares, par value $5.00 per shareOTTRThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934. Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 2.02    Results of Operations and Financial Condition On February 16, 2026 Otter Tail Corporation issued a press release announcing its consolidated financial results for the quarter and year ended December 31, 2025, and its earnings guidance for 2026. A copy of the press release is furnished herewith as Exhibit 99.1. The information in this Item 2.02 (including Exhibit 99.1 attached hereto) shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934, except as shall be expressly set forth by specific reference in such filing. Item 9.01    Financial Statements and Exhibits

(d) Exhibits

99.1 Press Release issued February 16, 2026.

104Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

OTTER TAIL CORPORATION

Date: February 17, 2026 By:/s/ Todd R. Wahlund Todd R. Wahlund Chief Financial Officer

2025
Q3

Q3 2025 Earnings

8-K

Nov 4, 2025

0001466593-25-000119

ottr-202511030001466593false00014665932025-11-032025-11-03

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 3, 2025

OTTER TAIL CORPORATION

(Exact name of registrant as specified in its charter)

Minnesota (State or other jurisdiction of incorporation or organization) 0-53713 (Commission File Number) 27-0383995 (I.R.S. Employer Identification No.)

215 South Cascade Street, P.O. Box 496, Fergus Falls, MN 56538-0496 (Address of principal executive offices, including zip code) (866) 410-8780 (Registrant’s telephone number, including area code) Not Applicable (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Securities Exchange Act of 1934:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Shares, par value $5.00 per shareOTTRThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934. Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 2.02    Results of Operations and Financial Condition On November 3, 2025 Otter Tail Corporation issued a press release announcing its consolidated financial results for the third quarter of 2025. A copy of the press release is furnished herewith as Exhibit 99.1. The information in this Item 2.02 (including Exhibit 99.1 attached hereto) shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934, except as shall be expressly set forth by specific reference in such filing. Item 9.01    Financial Statements and Exhibits

(d) Exhibits

99.1 Press Release issued November 3, 2025.

104Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

OTTER TAIL CORPORATION

Date: November 4, 2025 By:/s/ Todd R. Wahlund Todd R. Wahlund Chief Financial Officer

2025
Q2

Q2 2025 Earnings

8-K

Aug 5, 2025

0001466593-25-000102

ottr-202508040001466593false00014665932025-08-042025-08-04

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 4, 2025

OTTER TAIL CORPORATION

(Exact name of registrant as specified in its charter)

Minnesota (State or other jurisdiction of incorporation or organization) 0-53713 (Commission File Number) 27-0383995 (I.R.S. Employer Identification No.)

215 South Cascade Street, P.O. Box 496, Fergus Falls, MN 56538-0496 (Address of principal executive offices, including zip code) (866) 410-8780 (Registrant’s telephone number, including area code) Not Applicable (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Securities Exchange Act of 1934:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Shares, par value $5.00 per shareOTTRThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934. Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 2.02    Results of Operations and Financial Condition On August 4, 2025 Otter Tail Corporation issued a press release announcing its consolidated financial results for the second quarter of 2025. A copy of the press release is furnished herewith as Exhibit 99.1. The information in this Item 2.02 (including Exhibit 99.1 attached hereto) shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934, except as shall be expressly set forth by specific reference in such filing. Item 9.01    Financial Statements and Exhibits

(d) Exhibits

99.1 Press Release issued August 4, 2025.

104Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

OTTER TAIL CORPORATION

Date: August 5, 2025 By:/s/ Todd R. Wahlund Todd R. Wahlund Chief Financial Officer

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