PLUG POWER INC (PLUG) Institutional Ownership Changes & 13F Activity

PLUG POWER INC (PLUG). 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, Sequoia Financial Advisors, Mairs & Power Growth Fund, and ARK Invest.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Renaissance Technologies LLCBuy13,685,90027,738,500$62,689,010
Q4 2025Renaissance Technologies LLCBuy11,125,40014,052,600$27,683,622
Q4 2024Renaissance Technologies LLCBuy2,117,8652,927,200$6,234,936
Q1 2022Sequoia Financial AdvisorsBuy3,74818,158$520
Q4 2021Renaissance Technologies LLCBuy471,035809,335$22,848
Q4 2021Sequoia Financial AdvisorsBuy2,41014,410$407
Q3 2021Sequoia Financial AdvisorsBuy6,01212,000$306
Q2 2021Sequoia Financial AdvisorsSell-1235,988$205
Q1 2021Renaissance Technologies LLCSell-468,600338,300$12,125
Q1 2021Mairs & Power Growth FundSell-10,00010,000$358
Q1 2021Sequoia Financial AdvisorsBuy6,1116,111$219
Q4 2020Mairs & Power Growth FundSell-87520,000$678
Q3 2020Renaissance Technologies LLCSell-1,123,400806,900$10,821
Q3 2020Mairs & Power Growth FundSell-9,12520,875$280
Q1 2020Renaissance Technologies LLCBuy1,593,1691,930,300$6,833
Q2 2019Renaissance Technologies LLCSell-1,798,669337,131$759
Q2 2019Mairs & Power Growth FundBuy30,00030,000$68
Q1 2019Renaissance Technologies LLCBuy1,390,9152,135,800$5,126
Q4 2017ARK InvestBuy74,934412,391$973
Q3 2017ARK InvestBuy143,024337,457$881
Q2 2017ARK InvestBuy194,433194,433$397
Q4 2013Renaissance Technologies LLCSell-1,020,000744,885$1,155
Q3 2013Renaissance Technologies LLCSell-457,3001,764,885$1,306
Q2 2013Renaissance Technologies LLCBuy2,222,1852,222,185$844

Frequently asked questions about PLUG activity

  • Which institutional owners are buying PLUG?

    Institutional owners buying PLUG 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 PLUG activity?

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

  • Is institutional interest in PLUG increasing?

    Institutional interest in PLUG 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.

Related PLUG Institutional Insights