(PRKS) Stock Institutional Trading Activity


(PRKS) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q3 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC, Olstein Capital Management, Greenlight Capital, Lone Pine Capital, and First Eagle U.S. Value. 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
Q2 2019Renaissance Technologies LLCSell-949,5751,825,325$56,585
Q1 2019Olstein Capital ManagementBuy94,650287,500$7,406
Q1 2019Renaissance Technologies LLCSell-52,2002,774,900$71,481
Q4 2018Renaissance Technologies LLCBuy1,646,2002,827,100$62,451
Q3 2018Olstein Capital ManagementSell-304,700192,850$6,061
Q3 2018Renaissance Technologies LLCBuy1,055,6401,180,900$37,116
Q2 2018Olstein Capital ManagementSell-303,650497,550$10,857
Q1 2018Olstein Capital ManagementSell-318,800801,200$11,882
Q4 2017Greenlight CapitalBuy142,148142,148$1,929
Q4 2017Olstein Capital ManagementBuy122,0001,120,000$15,198
Q3 2017Olstein Capital ManagementBuy231,060998,000$12,964
Q2 2017Renaissance Technologies LLCSell-892,756125,260$2,038
Q2 2017Olstein Capital ManagementBuy151,090766,940$12,478
Q1 2017Olstein Capital ManagementBuy89,355615,850$11,252
Q1 2017Renaissance Technologies LLCBuy630,0161,018,016$18,599
Q4 2016Renaissance Technologies LLCSell-56,000388,000$7,345
Q4 2016Olstein Capital ManagementSell-18,000526,495$9,967
Q3 2016Olstein Capital ManagementBuy160,640544,495$7,340
Q2 2016Olstein Capital ManagementBuy383,855383,855$5,501
Q1 2016Renaissance Technologies LLCBuy372,600444,000$9,351
Q4 2015Renaissance Technologies LLCSell-72,90071,400$1,406
Q3 2015Renaissance Technologies LLCSell-809,600144,300$2,570
Q2 2015Renaissance Technologies LLCSell-808,200953,900$17,590
Q1 2015Renaissance Technologies LLCBuy296,4001,762,100$33,973
Q4 2014Renaissance Technologies LLCBuy746,2001,465,700$26,236
Q3 2014Renaissance Technologies LLCBuy495,900719,500$13,836
Q2 2014Renaissance Technologies LLCSell-26,998223,600$6,335
Q1 2014Renaissance Technologies LLCBuy17,198250,598$7,576
Q1 2014First Eagle U.S. ValueBuy90,740840,740$25,416
Q1 2014Lone Pine CapitalSell-944,1372,114,123$63,910

Frequently asked questions about PRKS activity

  • Which institutional owners are buying PRKS?

    Institutional owners buying PRKS 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 PRKS activity?

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

  • Is institutional interest in PRKS increasing?

    Institutional interest in PRKS 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.