OTTER TAIL CORP (OTTR) Stock Institutional Trading Activity


OTTER TAIL CORP (OTTR) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC, Sequoia Financial Advisors, and Mairs & Power Growth Fund. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

Explore more:

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2017Renaissance Technologies LLCBuy60,390692,800$30,795
Q3 2017Renaissance Technologies LLCBuy76,900632,410$27,415
Q2 2017Renaissance Technologies LLCBuy127,110555,510$21,998
Q1 2017Renaissance Technologies LLCBuy65,500428,400$16,236
Q1 2017Mairs & Power Growth FundBuy7,0087,008$266
Q4 2016Renaissance Technologies LLCBuy74,900362,900$14,806
Q3 2016Renaissance Technologies LLCBuy76,700288,000$9,962
Q2 2016Renaissance Technologies LLCSell-19,210211,300$7,076
Q1 2016Renaissance Technologies LLCBuy117,410230,510$6,828
Q4 2015Renaissance Technologies LLCSell-75,907113,100$3,012
Q3 2015Renaissance Technologies LLCBuy66,902189,007$4,926
Q2 2015Renaissance Technologies LLCBuy63,895122,105$3,248
Q1 2015Renaissance Technologies LLCBuy41,60058,210$1,873
Q4 2014Renaissance Technologies LLCSell-23,35516,610$514
Q3 2014Renaissance Technologies LLCSell-80,44539,965$1,066
Q2 2014Renaissance Technologies LLCBuy60,048120,410$3,647
Q1 2014Renaissance Technologies LLCBuy32,15260,362$1,859
Q2 2013Renaissance Technologies LLCBuy28,21028,210$801

Frequently asked questions about OTTR activity

  • Which institutional owners are buying OTTR?

    Institutional owners buying OTTR include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in OTTR activity?

    "Buy" means an investor increased their reported position in OTTR compared to the prior reporting period. This reflects growing exposure to OTTER TAIL CORP (OTTR) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in OTTR increasing?

    Institutional interest in OTTR can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.