Otter Tail Corp (OTTR)

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Hedge Fund Holdings

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Last updated on August 26, 2025, 11:23am based on SEC 13F filings Last update: August 26, 2025, 11:23am

No.	Hedge Fund	Shares	Value	Activity	% Port
1.	Millennium Management Israel Englander	476,582	$36,739,706	+54%	0.02%
2.	GAMCO Investors Mario Gabelli	273,392	$21,075,789	+1%	0.21%
3.	Citadel Investment Group Ken Griffin	236,061	$18,197,942	+33%	0%
4.	Adage Capital Management Phill Gross And Robert Atchinson	185,000	$14,261,650	-16%	0.02%
5.	D E Shaw D. E. Shaw	164,726	$12,698,727	+64%	0.01%

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.	6,428,579	$495,579,146	0.01%
2.	Vanguard Group Inc	5,142,810	$396,459,222	0.01%
3.	State Street Corp	1,571,945	$121,181,240	0%
4.	First Trust Advisors Lp	1,243,574	$95,867,130	0.08%
5.	Geode Capital Management, Llc	1,010,613	$77,922,879	0.01%