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OTTR research notebook

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SEC submissions · retrieved 2026-09-07 · 8010 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 8-K · Current report

    Report date 2026-08-28 · 0001466593-26-000074 · Items 5.02

  2. 4 · Ownership change

    Report date 2026-08-10 · 0001559334-26-000010

  3. 4 · Ownership change

    Report date 2026-08-07 · 0001559334-26-000006

  4. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001466593-26-000071

  5. 8-K · Current report

    Report date 2026-08-03 · 0001466593-26-000068 · Items 2.02,9.01

  6. 8-K · Current report

    Report date 2026-06-17 · 0001466593-26-000063 · Items 1.01

  7. 8-K · Current report

    Report date 2026-06-04 · 0001466593-26-000061 · Items 2.03

  8. 8-K · Current report

    Report date 2026-05-28 · 0001466593-26-000057 · Items 1.01

  9. 8-K · Current report

    Report date 2026-05-15 · 0001466593-26-000054 · Items 8.01

  10. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001466593-26-000051

  11. 8-K · Current report

    Report date 2026-05-04 · 0001466593-26-000049 · Items 2.02,9.01

  12. 4 · Ownership change

    Report date 2026-04-13 · 0002129002-26-000004

  13. 4 · Ownership change

    Report date 2026-04-13 · 0002002077-26-000009

  14. 4 · Ownership change

    Report date 2026-04-13 · 0001726153-26-000007

  15. 4 · Ownership change

    Report date 2026-04-13 · 0001605621-26-000007

  16. 8-K · Current report

    Report date 2026-04-13 · 0001466593-26-000040 · Items 5.07

  17. 4 · Ownership change

    Report date 2026-04-13 · 0001959466-26-000002

  18. 4 · Ownership change

    Report date 2026-04-13 · 0001959390-26-000002

  19. 8-K · Current report

    Report date 2026-04-13 · 0001466593-26-000037 · Items 5.02,7.01,9.01

  20. 8-K · Current report

    Report date 2026-03-19 · 0001466593-26-000034 · Items 1.01,2.03,9.01

  21. DEF 14A · Proxy statement

    Report date 2026-04-13 · 0001466593-26-000023

  22. 10-K/A · Annual report

    Report date 2025-12-31 · 0001466593-26-000015

  23. 10-K · Annual report

    Report date 2025-12-31 · 0001466593-26-000008

  24. 8-K · Current report

    Report date 2026-02-16 · 0001466593-26-000002 · Items 2.02,9.01

  25. 8-K · Current report

    Report date 2025-12-16 · 0001466593-25-000128 · Items 5.02,7.01,9.01

  26. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001466593-25-000122

  27. 8-K · Current report

    Report date 2025-11-03 · 0001466593-25-000119 · Items 2.02,9.01

  28. 10-Q · Quarterly report

    Report date 2025-06-30 · 0001466593-25-000107

  29. 8-K · Current report

    Report date 2025-08-04 · 0001466593-25-000102 · Items 2.02,9.01

  30. 8-K · Current report

    Report date 2025-06-05 · 0001466593-25-000097 · Items 2.03

  31. 8-K · Current report

    Report date 2025-06-04 · 0001466593-25-000091 · Items 8.01

  32. 10-Q · Quarterly report

    Report date 2025-03-31 · 0001466593-25-000083

  33. 8-K · Current report

    Report date 2025-05-05 · 0001466593-25-000080 · Items 2.02,9.01

  34. 8-K · Current report

    Report date 2025-04-14 · 0001466593-25-000075 · Items 5.07

  35. 8-K · Current report

    Report date 2025-03-27 · 0001466593-25-000054 · Items 1.01,2.03,9.01

  36. DEF 14A · Proxy statement

    Report date 2024-12-31 · 0001466593-25-000049

  37. 10-K · Annual report

    Report date 2024-12-31 · 0001466593-25-000034

  38. 8-K · Current report

    Report date 2025-02-17 · 0001466593-25-000027 · Items 2.02,9.01

  39. 8-K · Current report

    Report date 2024-12-30 · 0001466593-24-000149 · Items 8.01

  40. 8-K · Current report

    Report date 2024-12-11 · 0001466593-24-000147 · Items 1.01,2.03,9.01

Reported insider transactions

Download transactions CSV

SEC insider transactions · retrieved 2026-09-07 · 2026 Q2: filings in this completed quarter; not a live transaction feed

Purchases and sales include open-market or private transactions. Grants, exercises and tax withholding are shown separately. Amendments and joint reports can overlap; rows are not a net-buying score. Prices retain the filing's units; consult its footnotes.

Transaction rows by code · counts, not monetary totals
Purchase: 0 transaction rows0PSale: 0 transaction rows0SGrant / award: 13 transaction rows13AExercise / conversion: 2 transaction rows2MTax / exercise payment: 1 transaction rows1FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

16 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-04-13
2026-04-15
Nelson Tyler JA · Grant / award
Acquired
Restricted Stock Units
Derivative security
800.00.0
2026-04-13
2026-04-15
Wahlund Todd RA · Grant / award
Acquired
Restricted Stock Units
Derivative security
300.00.0
2026-04-13
2026-04-14
Ludford Mary EA · Grant / award
Acquired
Common Stock1500.0—
2026-04-13
2026-04-14
Crain Jeanne HA · Grant / award
Acquired
Common Stock1500.0—
2026-04-13
2026-04-14
LeBeau Michael EA · Grant / award
Acquired
Common Stock1500.0—
2026-04-13
2026-04-15
Smestad Jennifer O.A · Grant / award
Acquired
Restricted Stock Units
Derivative security
5800.00.0
2026-04-13
2026-04-14
Clark Christopher BA · Grant / award
Acquired
Common Stock1900.0—
2026-04-13
2026-04-15
ROGELSTAD TIMOTHY JA · Grant / award
Acquired
Restricted Stock Units
Derivative security
1400.00.0
2026-04-13
2026-04-14
Johnson Kathryn OA · Grant / award
Acquired
Common Stock1500.0—
2026-04-13
2026-04-14
Rasche Steven PA · Grant / award
Acquired
Common Stock1900.0—
2026-04-13
2026-04-14
ERICKSON JOHN DA · Grant / award
Acquired
Common Stock1500.0—
2026-04-13
2026-04-14
PARTAIN NATHAN IA · Grant / award
Acquired
Common Stock2000.0—
2026-04-13
2026-04-14
WEBB THOMAS JA · Grant / award
Acquired
Common Stock1500.0—
2026-04-08
2026-04-09
Wahlund Todd RM · Exercise / conversion
Acquired
Common Stock460.090.11
2026-04-08
2026-04-09
Wahlund Todd RF · Tax / exercise payment
Disposed
Common Stock186.090.11
2026-04-08
2026-04-09
Wahlund Todd RM · Exercise / conversion
Disposed
Restricted Stock Units
Derivative security
460.00.0

Identity & relationships

Wikidata structured data · retrieved 2026-09-07 · 1611 unambiguous CIK-linked entities; coverage is incomplete

These are sourced identity and relationship claims, with incomplete coverage. Headquarters locations do not describe sales, assets or operating exposure.

SEC issuer · 0001466593Otter Tail Corp

No parent relationship is available in this import; this is not proof of independence.

No verified LEI join available.

GLEIF legal entity reference data · retrieved 2026-09-07 · 1177 checked identities; 0 unavailable records

Search names and former names

View Wikidata identity and references ↗

  • Otter Tail Corporation · alias · wikidata
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Revenue in constant purchasing power

USD revenue expressed in 2026-07 consumer-price dollars. Each annual period uses a CPI-U average weighted by the days in its actual reporting interval. This is a purchasing-power comparison, not a company-specific price or volume measure.

Year endedReported USD revenueCPI-adjusted USD revenue
2024-12-31$1.33B$1.42B
2023-12-31$1.35B$1.48B
2022-12-31$1.47B$1.68B
2021-12-31$1.20B$1.48B
2020-12-31$883.17M$1.14B
2019-12-31$919.50M$1.20B
2018-12-31$916.45M$1.22B
2017-12-31$849.35M$1.16B

Bureau of Labor Statistics · retrieved 2026-09-07 · 9 selected series; gaps remain missing

Explore the CPI history ↗