PI (PI) Institutional Ownership Changes & 13F Activity

PI. 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 and ARK Invest.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2025Renaissance Technologies LLCSell-44,10022,800$3,967,428
Q1 2025Renaissance Technologies LLCSell-157,50066,900$6,067,830
Q4 2024Renaissance Technologies LLCBuy7,500224,400$32,596,344
Q3 2024Renaissance Technologies LLCBuy24,800216,900$46,963,188
Q2 2024Renaissance Technologies LLCBuy127,000192,100$30,115,517
Q1 2023Renaissance Technologies LLCSell-105,70065,100$8,822
Q4 2022Renaissance Technologies LLCBuy26,600170,800$18,648
Q3 2022Renaissance Technologies LLCBuy17,200144,200$11,540
Q2 2022Renaissance Technologies LLCSell-47,000127,000$7,451
Q1 2022Renaissance Technologies LLCBuy29,267174,000$11,056
Q4 2021Renaissance Technologies LLCBuy48,933144,733$12,838
Q3 2021Renaissance Technologies LLCSell-55,10095,800$5,473
Q2 2021Renaissance Technologies LLCSell-61,700150,900$7,785
Q1 2021Renaissance Technologies LLCBuy98,200212,600$12,091
Q4 2020Renaissance Technologies LLCBuy49,300114,400$4,790
Q3 2020Renaissance Technologies LLCSell-52,80065,100$1,715
Q2 2020Renaissance Technologies LLCSell-50,200117,900$3,239
Q1 2020Renaissance Technologies LLCBuy36,100168,100$2,809
Q4 2019Renaissance Technologies LLCBuy9,800132,000$3,414
Q3 2019Renaissance Technologies LLCBuy63,800122,200$3,767
Q2 2019Renaissance Technologies LLCSell-16,30058,400$1,671
Q1 2019Renaissance Technologies LLCBuy6,20074,700$1,252
Q4 2018Renaissance Technologies LLCBuy68,50068,500$997
Q4 2017ARK InvestBuy55,09289,057$2,006
Q3 2017ARK InvestBuy28,10133,965$1,413
Q2 2017ARK InvestBuy5,8645,864$285

Frequently asked questions about PI activity

  • Which institutional owners are buying PI?

    Institutional owners buying PI 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 PI activity?

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

  • Is institutional interest in PI increasing?

    Institutional interest in PI 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 PI Institutional Insights