OTTER TAIL CORP (OTTR) Institutional Ownership and Insiders Activity

OTTER TAIL CORP (OTTR) is widely held by institutional investors, with 347 firms reporting positions valued at approximately $2.64B based on SEC Form 13F filings for the quarter ended June 30, 2026.

Blackrock, Inc. is the largest disclosed holder, reporting approximately $590.05M in OTTR holdings in its latest filing.

Recent insider activity includes 6 tracked Form 4 transactions over the last three months, reflecting ongoing executive and director trading activity.