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The company

Otter Tail Corporation

OTTR · Nasdaq

UtilitiesElectric Utilities & IPPsJust started moving

OTTR stood above a rising 150-day average in 45 of the last 52 weekly readings, including each of the last 1 week. It is 1.1% above that average now. Electric Utilities & IPPs: 12% of its 75 stocks in an uptrend (+3 points in four weeks); Utilities: 13% (−4 points in four weeks).

SEC filings

Statistics

Rotation: Just started moving
Weeks in an uptrend: 1 in a row
Industry in uptrend: 12% +3 in 4 wk
Insider buys, 12 months: $0
Insider sales, 12 months: $788K
Officials’ trades on record: 9
Institutions holding: 339 (+18)

In the rotation

Each square a week: lit when it closed above a rising 150-day average. 45 of 52 weeks.

17 Apr – 16 Oct

Electric Utilities & IPPs: Few of its stocks are in an uptrend and the share has held steady. Utilities: Few of its stocks are in an uptrend and the share has been slipping.

Money in and out

1 Nov 2024 – 1 Oct 2026

Open-market buys above the line and sales below, in dollars.

Congress and officials

9 disclosed lines: House 1, Senate 0, executive 8; 3 people.

Who	Did	Amount	Traded
Donald J. Trump Executive branch: Office of Government EthicsWhite House Office	sold	$15k–$50k	29 Jul 2026filed 22 Sep 2026
Donald J. Trump Executive branch: Office of Government EthicsWhite House Office	bought	$15k–$50k	22 Jun 2026filed 22 Aug 2026
Donald J. Trump Executive branch: Office of Government EthicsWhite House Office	sold	$50k–$100k	15 May 2026filed 1 Jul 2026
Donald J. Trump Executive branch: Office of Government EthicsWhite House Office	bought	$15k–$50k	30 Apr 2026filed 1 Jul 2026
Donald J. Trump Executive branch: Office of Government EthicsWhite House Office	sold	$15k–$50k	30 Mar 2026filed 14 May 2026
Donald J. Trump Executive branch: Office of Government EthicsWhite House Office	bought	$15k–$50k	4 Mar 2026filed 14 May 2026
Donald J. Trump Executive branch: Office of Government EthicsWhite House Office	bought	$15k–$50k	26 Feb 2026filed 14 May 2026
Douglas J. Burgum Executive branch: Office of Government EthicsDepartment of The Interior	sold	$1k–$15k	4 Feb 2025filed 14 May 2025
Nick J. Rahall II House: U.S. House ClerkWV03	sold	$1k–$15k	23 Jan 2014filed 14 Feb 2014

Insiders

Buy orders, 12 months0

Sale orders, 12 months3

Buyers · sellers0 · 1

Who	Did	Shares	Traded
Paul L. KnutsonVP, Human Resources	sold	475at $94.63	11 Aug 2026filed 12 Aug 2026
Paul L. KnutsonVP, Human Resources	sold	250at $92.84	10 Aug 2026filed 12 Aug 2026
Paul L. KnutsonVP, Human Resources	sold	3,500at $93.11	7 Aug 2026filed 11 Aug 2026

Lines filed since 2 January 2026, newest first; every insider’s older lines are on their own page.

Institutions

Holders339+18 on the quarter

New · exited52 · 33

Reported value$2.5B

Quarter to 30 Jun 2026, against 31 Mar 2026; newest filing 31 Aug 2026.

Manager	Shares	Change
BlackRock, Inc.added · filed 7 Aug 2026	6,557,596$590.1M	+133,222+2.1%
VANGUARD PORTFOLIO MANAGEMENT LLCadded · filed 13 Aug 2026	2,996,322$269.6M	+49,138+1.7%
VANGUARD CAPITAL MANAGEMENT LLCadded · filed 13 Aug 2026	1,891,243$170.2M	+25,530+1.4%
STATE STREET CORPadded · filed 7 Aug 2026	1,645,782$148.1M	+76,434+4.9%
GEODE CAPITAL MANAGEMENT, LLCadded · filed 12 Aug 2026	1,112,886$100.2M	+57,999+5.5%
MORGAN STANLEYadded · filed 13 Aug 2026	885,376$79.7M	+230,942+35.3%
DIMENSIONAL FUND ADVISORS LPadded · filed 11 Aug 2026	828,016$74.5M	+12,775+1.6%
TWO SIGMA INVESTMENTS, LPadded · filed 14 Aug 2026	725,769$65.3M	+62,835+9.5%
FIRST TRUST ADVISORS LPadded · filed 11 Aug 2026	637,043$57.3M	+30,539+5.0%
Caisse de depot et placement du Quebecreduced · filed 14 Aug 2026	539,873$48.6M	-30,060−5.3%