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See how Context works →On the price, the facts of the public record■Insider buy□Insider sell●Results filed
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End-of-day prices provided by Twelve Data · One close per session; the series does not update during the trading day.
Latest on record
The most recent facts, as filed.
Up to three of the most recent, checkable facts already loaded on this page, each linked to its source.
- Sep 1, 2026Material event · 8-KFiled by the company itself.Open the filing ↗
- Aug 11, 2026Reported sale · Form 4PAUL L KNUTSON, VP, Human Resources · $44.9KOpen the filing ↗
- Aug 10, 2026Reported sale · Form 4PAUL L KNUTSON, VP, Human Resources · $23.2KOpen the filing ↗
In numbers
What this profile holds, counted.
Closes · 1 year250
SEC filings on record8308 flagged findings
Reported transactions (Form 4)80since Feb 11, 2025 · and 18 other holdings
Corporate events (8-K)30since Aug 20, 2020
What the record says
Description, identity and filings, each with its source.
Every block cites its source. The colour of a finding marks its category — which document, who filed it — not how much it matters.
What the company does
Otter Tail Corporation is an electric power and manufacturing company based in Fergus Falls, Minnesota. Its subsidiaries include Otter Tail Power Company, BTD Manufacturing Inc., T.O. Plastics Inc., Northern Pipe Products Inc., and Vinyltech Corporation.
Source: Wikipedia (CC BY-SA 4.0) · copied on Sep 3, 2026 · may not reflect recent changes.
Regulatory history
Topics detected in its SEC reports, with the original excerpt.
Each topic is assigned by a classifier over the full filing; the excerpts show where it was detected and are not always enough to verify it. Open the filing to read it in full.
- 2026-05-29share offering or dilution eventrecentOpen filing ↗“…provided pursuant to Section 13(a) of the Exchange Act. ☐ Item 1.01 Entry into a Material Definitive Agreement. As previously…”
+1 more passage from the same document
- “…manufacturers. The actions were later consolidated as In re: PVC Pipe Antitrust Litigation (Case No. 1:24-cv-07639) in the United…”
- 2026-05-06share offering or dilution eventrecentOpen filing ↗“…time no Court decision has been issued on the motions. In August 2024, the Company received a grand jury subpoena issued by the…”
+1 more passage from the same document
- “…business consisting of a vertically integrated, regulated utility with generation, transmission and distribution…”
- 2026-05-06capital return (buybacks/dividends)recentOpen filing ↗“…our Employee Stock Purchase Plan as we elected to acquire shares in the open market to fulfill share issuances to plan…”
+1 more passage from the same document
- “…Employee Stock Purchase Plan as we elected to acquire shares in the open market to fulfill share issuances to plan participants.…”
- 2026-05-06Department of Justice inquiryrecentOpen filing ↗“…On October 30, 2025, the defendants, including OTC, filed motions to dismiss. Briefings on these motions were completed in…”
+1 more passage from the same document
- “…pre- and post-judgment interest, costs and attorneys' fees on behalf of the putative classes. 19 Table of Contents On October 30,…”
Original excerpts from SEC filings, untranslated. Not advice and not a prediction.
The 25 most recent filings (of 830)
Every SEC filing, newest first, with what it is. Below, each type with its own explanation.
- Sep 1, 268-K ↗Current report · A senior executive left or was appointed
- Aug 7, 26Form 144 ↗Notice of proposed sale
- Aug 7, 26SCHEDULE 13G ↗Passive stake · STATE STREET CORPORATION · 5.1% · event on Jun 30, 26
- Aug 5, 2610-Q ↗Quarterly report
- Aug 4, 268-K ↗Current report · Results
- Jun 18, 268-K ↗Current report · Entered a material agreement
- Jun 5, 268-K ↗Current report · Took on a new financial obligation
- May 29, 268-K ↗Current report · Entered a material agreement
- May 15, 268-K ↗Current report · Other events
- May 6, 2610-Q ↗Quarterly report
- May 5, 268-K ↗Current report · Results
- Apr 30, 26SCHEDULE 13G ↗Passive stake · Vanguard Capital Management · 5.2% · event on Mar 31, 26
- Apr 29, 26SCHEDULE 13G ↗Passive stake · Vanguard Portfolio Management · 7.1% · event on Mar 31, 26
- Apr 15, 268-K ↗Current report · Shareholder vote results
- Apr 14, 26Form 3 ↗Insider transaction
830 filings on record, the oldest from Jul 1, 09.
Listing the 25 most recent filings of the 830 on record.
7531
- Sep 1, 26A senior executive left or was appointed8-K 5.02 ↗
- Jun 18, 26Entered a material agreement8-K 1.01 ↗
- Jun 5, 26Took on a new financial obligation8-K 2.03 ↗
- May 29, 26Entered a material agreement8-K 1.01 ↗
- Apr 14, 26A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
- Mar 23, 26Entered a material agreement+2 more in the same filing8-K 1.01 ↗
- Dec 18, 25A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
- Jun 6, 25Took on a new financial obligation8-K 2.03 ↗
- Mar 31, 25Entered a material agreement+2 more in the same filing8-K 1.01 ↗
- Dec 16, 24Took on a new financial obligation+2 more in the same filing8-K 2.03 ↗
- Apr 2, 24Took on a new financial obligation+1 more in the same filing8-K 2.03 ↗
4 senior executive changes2022 – 2024show all 4hide
- Jan 29, 24A senior executive left or was appointed8-K 5.02 ↗
- Oct 4, 23A senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
- Apr 19, 23A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
- Dec 22, 22A senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
8 older filings not shown · The record reaches back to Jul 1, 09.
Corporate events are tracked from 2004-08-23, when the SEC renumbered 8-K items. Earlier filings use an incompatible numbering and are not classified here.
Schedule 13G: short-form filing
The short form, for holders who meet specific requirements: institutional investors, passive investors without a control purpose, or exempt investors. Asset managers and index funds usually file it.
- Vanguard Portfolio Management7.1%Mar 31, 26SCHEDULE 13G ↗
- Vanguard Capital Management5.2%Mar 31, 26SCHEDULE 13G ↗
- STATE STREET CORPORATION5.1%Jun 30, 26SCHEDULE 13G ↗
Structured 13D/G data starts 2023-12, when the SEC moved these filings to a machine-readable format. Earlier filings exist but are not parsed here.
Sale intention announced
On Aug 7, Paul Knutson filed notice of intent to sell up to $328K.
A notice is not a sale: it may not go ahead, may happen in part, or at a different price.
After the notice, they sold $394K across 3 trades, between Aug 7 and Aug 11, per their Form 4. Their sales over those 90 days add up to 121% of the amount announced.
Stock compensation, tax and giftsshow the 37 other transactionshide
Stock compensation, tax withholding, option exercises and gifts. They are listed separately and are not included in the purchase and sale totals. The type describes the transaction, not the filer's intent.
- Aug 7, 26Giftamount n/aPAUL L KNUTSONVP, Human Resources↗
- Aug 7, 26Giftamount n/aPAUL L KNUTSONVP, Human Resources↗
- Aug 7, 26Giftamount n/aPAUL L KNUTSONVP, Human Resources↗
- Apr 13, 26Compensationamount n/aTHOMAS J WEBB↗
- Apr 13, 26Compensationamount n/aNATHAN I PARTAIN↗
- Apr 13, 26Compensationamount n/aJOHN D ERICKSON↗
- Apr 13, 26Compensationamount n/aSteven P Rasche↗
- Apr 13, 26Compensationamount n/aKathryn O Johnson↗
- Apr 13, 26Compensationamount n/aChristopher B Clark↗
- Apr 13, 26Compensationamount n/aMichael E LeBeau↗
- Apr 13, 26Compensationamount n/aJeanne H Crain↗
- Apr 13, 26Compensationamount n/aMary E Ludford↗
- Apr 8, 26Compensation$41KTodd R WahlundChief Financial Officer↗
- Apr 8, 26Tax$17KTodd R WahlundChief Financial Officer↗
- Feb 11, 26Compensation$4.1MCHARLES S MACFARLANEPresident & CEO↗
- Feb 11, 26Tax$2.0MCHARLES S MACFARLANEPresident & CEO↗
- Feb 11, 26Compensation$311KPAUL L KNUTSONVP, Human Resources↗
- Feb 11, 26Tax$138KPAUL L KNUTSONVP, Human Resources↗
- Feb 11, 26Compensation$726KTIMOTHY J ROGELSTADSr VP, Electric Platform↗
- Feb 11, 26Tax$364KTIMOTHY J ROGELSTADSr VP, Electric Platform↗
- Feb 11, 26Compensation$726KJohn S AbbottSr VP, Manufacturing Platform↗
- Feb 11, 26Tax$364KJohn S AbbottSr VP, Manufacturing Platform↗
- Feb 11, 26Compensation$519KJennifer O. SmestadVP, General Council & Corp Sec↗
- Feb 11, 26Tax$262KJennifer O. SmestadVP, General Council & Corp Sec↗
- Feb 6, 26Compensationamount n/aCHARLES S MACFARLANEPresident & CEO↗
- Feb 6, 26Tax$376KCHARLES S MACFARLANEPresident & CEO↗
- Feb 6, 26Compensationamount n/aTIMOTHY J ROGELSTADSr VP, Electric Platform↗
- Feb 6, 26Tax$67KTIMOTHY J ROGELSTADSr VP, Electric Platform↗
- Feb 6, 26Compensationamount n/aJohn S AbbottSr VP, Manufacturing Platform↗
- Feb 6, 26Tax$67KJohn S AbbottSr VP, Manufacturing Platform↗
- Feb 6, 26Compensationamount n/aJennifer O. SmestadVP, General Council & Corp Sec↗
- Feb 6, 26Tax$48KJennifer O. SmestadVP, General Council & Corp Sec↗
- Feb 6, 26Compensationamount n/aTodd R WahlundChief Financial Officer↗
- Feb 6, 26Tax$10KTodd R WahlundChief Financial Officer↗
- Feb 6, 26Compensationamount n/aPAUL L KNUTSONVP, Human Resources↗
- Feb 6, 26Tax$25KPAUL L KNUTSONVP, Human Resources↗
- Apr 13, 25Compensationamount n/aTHOMAS J WEBB↗
The full record holds 143 transactions and goes back to Dec 31, 22.
Its sector and its market
Otter Tail Corporation among Industrials companies
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Coverage
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- Prices
- End-of-day closes provided by Twelve Data. One close per session; not real time. Closes adjusted for splits.
- Series quality
- 250 clean closes in the period.
- SEC records
- 830 documents on file, from Jul 1, 2009 to Sep 1, 2026.
- Company description
- Wikipedia, read on Sep 3, 2026.
- This page
- Generated on Oct 19, 2026; refreshed through the day.
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Which SEC documents appear here?
Those filed with the SEC by the company, its insiders and its major shareholders, within our coverage: periodic reports (10-K, 10-Q, 20-F), material events (8-K), proposed sale notices (Form 144), insider transactions (Form 4) and stakes above 5% (13D/13G). Each links to the original on EDGAR.
Why does a European company show no SEC records?
It depends on the company: some European issuers file a 20-F or 6-K with the SEC and others don't. The profile shows whatever is on record; when there is nothing, it says so rather than guessing why. Europe does not yet have a common filing archive like EDGAR in the United States. The EU will open its own, ESAP, in July 2027 (managers' transactions arrive in January 2028), and we plan to add it once it is available.
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