Ticker · CUSIP 700658107
···Share
Holders (tracked)
6
Combined shares
124,610
Combined value
$18.96M
Last close
$175.33
Quarter
2025Q4
Price · 1Y$175.33+36.36 (+26.17%)H $175.80 · L $137.33 · Avg Vol 67K
$140.00$150.00$160.00$170.00VolJul 25Oct 25Jan 26Apr 26
Tracked holders · last 8 quarters
-1 vs previous quarter over the last 8.
642024Q12025Q4
Price is +15.2% vs the avg quarter-end implied price across tracked holders.

SEC event timeline

15 events
  1. −6,478 shares · 2025Q4
    Position
  2. +955 shares · 2025Q4
    Position
  3. −2,153 shares · 2025Q4
    Position
  4. −818 shares · 2025Q4
    Position
  5. +49,267 shares · 2025Q4
    Position
  6. +3,545 shares · 2025Q4
    Position
  7. −11,467 shares · 2025Q4
    Position
  8. −19,305 shares · 2025Q4
    Position
  9. −21,350 shares · 2025Q3
    Position
  10. +9,009 shares · 2025Q3
    Position
  11. −4,264 shares · 2025Q3
    Position
  12. +1,022 shares · 2025Q3
    Position
  13. +2,737 shares · 2025Q3
    Position
  14. +9,235 shares · 2025Q3
    Position
  15. +19,305 shares · 2025Q3
    Position

Insider activity

No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of PRK…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
InvestorFirst inCost basisReturnPosition value today
T. Rowe Price2016Q1$111.15+57.7%$3.0M
D.E. Shaw & Co.2016Q4$150.45+16.5%$2.9M
AQR Capital Management2016Q1$150.65+16.4%$2.2M
Ken Griffin (Citadel Advisors)2016Q1$150.84+16.2%$3.9M
Paul Tudor Jones (Tudor Investment)2016Q4$153.18+14.5%$8.6M
Izzy Englander (Millennium Mgmt)2016Q3$153.85+14.0%$1.2M

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.
New positions1
Added to2
Exited2

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
4
$301.6M
2022Q2
4
$281.8M
2022Q3
7
$290.0M
2022Q4
5
$333.5M
2023Q1
4
$280.9M
2023Q2
7
$235.0M
2023Q3
9
$213.7M
2023Q4
5
$307.1M
2024Q1
4
$305.9M
2024Q2
3
$318.8M
2024Q3
5
$9.1M
2024Q4
4
$6.9M
2025Q1
8
$16.2M
2025Q2
6
$15.4M
2025Q3
7
$18.1M
2025Q4
6
$19.0M

Who owns PRK

6 super-investors · 2025Q4
Tracked stake
124.6K
shares
Combined value
$19M
% of shares outstanding
shares-out unknown
Quarter action mix
New1Added2Trim3
#ManagerSharesValue
1Paul Tudor Jones
Tudor Investment
49.3K$7M
2Ken Griffin
Citadel Advisors
22.2K$3M
3T. Rowe Price17.3K$3M
4D.E. Shaw & Co.16.3K$2M
5AQR Capital Management12.5K$2M
6Izzy Englander
Millennium Mgmt
7.1K$1M

Recent moves

20 transactions
Embed this chart
Paste this iframe anywhere to embed the live PRK chart.
<iframe src="https://openstocks.me/embed/stock/PRK" width="100%" height="480" frameborder="0" loading="lazy" title="PRK chart by OpenStocks" style="border:0;border-radius:12px;background:transparent"></iframe>