Historical shareholding details of Nisa Investment Advisors, L.L.C. holdings in Otter Tail Corporation (OTTR)

Monthly changes of Nisa Investment Advisors, L.L.C. shareholding in Otter Tail Corporation over the previous months

Month	Name	Total no. shares held	Percent Holding
Month	Name	Total no. shares held	Percent Holding
Jun 30, 2025	Nisa Investment Advisors, L.L.C.	868	0.00%

Mar 31, 2025	Nisa Investment Advisors, L.L.C.	1,237	0.00%

Dec 31, 2024	Nisa Investment Advisors, L.L.C.	1,502	0.00%

Sep 30, 2024	Nisa Investment Advisors, L.L.C.	1,169	0.00%

Jun 30, 2024	Nisa Investment Advisors, L.L.C.	5,572	0.01%

Mar 31, 2024	Nisa Investment Advisors, L.L.C.	5,594	0.01%

Dec 31, 2023	Nisa Investment Advisors, L.L.C.	5,290	0.01%

Sep 30, 2023	Nisa Investment Advisors, L.L.C.	3,585	0.01%

Jun 30, 2023	Nisa Investment Advisors, L.L.C.	3,635	0.01%

Mar 31, 2023	Nisa Investment Advisors, L.L.C.	1,835	0.00%