Otter Tail Corp (OTTR)

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Sector: Electric Services

Hedge Fund Popularity

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Hedge Fund Holdings

Filing Period:

Last updated on February 18, 2026, 10:03am based on SEC 13F filings Last update: February 18, 2026, 10:03am

No.	Hedge Fund	Shares	Value	Activity	% Port
1.	Adage Capital Management Phill Gross And Robert Atchinson	344,149	$27,810,681	+109%	0.04%
2.	GAMCO Investors Mario Gabelli	272,350	$22,008,604		0.21%
3.	D E Shaw D. E. Shaw	248,239	$20,060,194	-5%	0.01%
4.	Marshall Wace LLP Paul Marshall And Ian Wace	173,429	$14,014,796	+14%	0.01%
5.	Two Sigma Advisors John Overdeck And David Siegel	161,100	$13,018,491	+335%	0.03%

Insider Trading: Purchases See All

Insider	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
Abbott Officer	$41.21	5,000	$206,050.00	5,000	2020-03-12	Filing
Liebe Director	$21.69	475	$10,300.80	475	2012-02-15	Filing

Insider Trading: Sales See All

Insider	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
Smestad Officer	$88.74	4,000	$354,960.00	12,300	2024-08-13	Filing
Knutson Officer	$90.66	4,000	$362,640.00	20,359	2024-05-24	Filing
Erickson Director	$77.36	2,500	$193,400.00	0	2023-11-20	Filing
Erickson Director	$56.31	2,000	$112,617.00	0	2022-11-21	Filing
O'keefe Director	$67.20	1,525	$102,483.05	0	2021-12-07	Filing

Institutional Investors' Holdings

Filing Period:

No.	Name	Shares	Value	% Port
1.	Blackrock, Inc.	6,391,447	$516,492,845	0.01%
2.	Vanguard Group Inc	5,059,480	$408,856,579	0.01%
3.	State Street Corp	1,561,440	$126,179,966	0%
4.	Geode Capital Management, Llc	1,019,262	$82,384,745	0.01%
5.	Dimensional Fund Advisors Lp	850,729	$68,750,934	0.01%