ALLIANT ENERGY CORP (LNT) Institutional Ownership Changes & 13F Activity

ALLIANT ENERGY CORP (LNT). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Renaissance Technologies LLC, Mairs & Power Growth Fund, and Sequoia Financial Advisors.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q3 2017Mairs & Power Growth FundSell-1,5007,228$300
Q2 2017Renaissance Technologies LLCBuy456,500500,400$20,101
Q1 2017Renaissance Technologies LLCBuy20,60043,900$1,739
Q2 2016Mairs & Power Growth FundBuy4,3648,728$347
Q1 2016Renaissance Technologies LLCBuy16,60023,300$1,731
Q4 2015Renaissance Technologies LLCSell-133,7006,700$418
Q2 2015Renaissance Technologies LLCBuy62,400140,400$8,104
Q1 2015Renaissance Technologies LLCSell-143,30078,000$4,914
Q1 2015Mairs & Power Growth FundSell-1334,364$275
Q4 2014Renaissance Technologies LLCBuy164,600221,300$14,699
Q3 2014Renaissance Technologies LLCSell-28,80056,700$3,142
Q3 2014Mairs & Power Growth FundSell-674,497$249
Q1 2014Renaissance Technologies LLCSell-162,30085,500$4,857
Q1 2014Mairs & Power Growth FundBuy6094,564$259
Q4 2013Renaissance Technologies LLCSell-88,200247,800$12,786
Q4 2013Mairs & Power Growth FundBuy3,9553,955$204
Q3 2013Renaissance Technologies LLCBuy155,800336,000$16,649
Q2 2013Renaissance Technologies LLCBuy180,200180,200$9,086

Frequently asked questions about LNT activity

  • Which institutional owners are buying LNT?

    Institutional owners buying LNT 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 LNT activity?

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

  • Is institutional interest in LNT increasing?

    Institutional interest in LNT 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.

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