PRKS (PRKS) Institutional Ownership Changes & 13F Activity
PRKS (PRKS) institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC 13F filings (Q4 2025). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Greenlight Capital, Renaissance Technologies LLC, Olstein Capital Management, Greenlight Capital, and Lone Pine Capital.
| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q4 2025 | Greenlight Capital | Buy | 574,620 | 574,620 | $20,858,706 |
| Q3 2025 | Renaissance Technologies LLC | Buy | 21,700 | 111,600 | $5,769,720 |
| Q1 2025 | Renaissance Technologies LLC | Buy | 39,500 | 89,900 | $4,086,854 |
| Q4 2024 | Renaissance Technologies LLC | Buy | 41,400 | 50,400 | $2,831,976 |
| Q3 2024 | Renaissance Technologies LLC | Sell | -94,919 | 9,000 | $455,400 |
| Q2 2024 | Renaissance Technologies LLC | Sell | -109,200 | 103,919 | $5,643,841 |
| Q1 2024 | Renaissance Technologies LLC | Sell | -114,600 | 213,119 | $11,979 |
| Q4 2023 | Renaissance Technologies LLC | Sell | -194,381 | 327,719 | $17,313 |
| Q3 2023 | Renaissance Technologies LLC | Sell | -237,700 | 522,100 | $24,147 |
| Q2 2023 | Renaissance Technologies LLC | Sell | -382,200 | 759,800 | $42,556 |
| Q1 2023 | Renaissance Technologies LLC | Sell | -151,500 | 1,142,000 | $70,016 |
| Q4 2022 | Renaissance Technologies LLC | Buy | 441,000 | 1,293,500 | $69,215 |
| Q3 2022 | Renaissance Technologies LLC | Buy | 296,600 | 852,500 | $38,797 |
| Q2 2022 | Renaissance Technologies LLC | Buy | 101,300 | 555,900 | $24,560 |
| Q1 2022 | Renaissance Technologies LLC | Sell | -508,200 | 454,600 | $33,840 |
| Q4 2021 | Renaissance Technologies LLC | Buy | 183,600 | 962,800 | $62,447 |
| Q3 2021 | Renaissance Technologies LLC | Buy | 620,800 | 779,200 | $43,105 |
| Q2 2021 | Renaissance Technologies LLC | Sell | -154,105 | 158,400 | $7,910 |
| Q1 2021 | Renaissance Technologies LLC | Sell | -2,620 | 312,505 | $15,522 |
| Q4 2020 | Renaissance Technologies LLC | Sell | -444,500 | 315,125 | $9,955 |
| Q3 2020 | Renaissance Technologies LLC | Sell | -791,200 | 759,625 | $14,980 |
| Q3 2020 | Olstein Capital Management | Sell | -168,437 | 204,463 | $4,032 |
| Q2 2020 | Renaissance Technologies LLC | Sell | -593,400 | 1,550,825 | $22,968 |
| Q2 2020 | Olstein Capital Management | Sell | -73,493 | 372,900 | $5,523 |
| Q1 2020 | Renaissance Technologies LLC | Sell | -431,794 | 2,144,225 | $23,629 |
| Q1 2020 | Olstein Capital Management | Buy | 161,393 | 446,393 | $4,919 |
| Q4 2019 | Renaissance Technologies LLC | Buy | 570,294 | 2,576,019 | $81,686 |
| Q4 2019 | Olstein Capital Management | Buy | 12,000 | 285,000 | $9,037 |
| Q3 2019 | Renaissance Technologies LLC | Buy | 180,400 | 2,005,725 | $52,791 |
| Q3 2019 | Olstein Capital Management | Sell | -6,000 | 273,000 | $7,185 |
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.