Ticker · CUSIP 81282V100
Holders (tracked)
5
Combined shares
399,481
Combined value
$14.50M
Last close
$35.94
Quarter
2025Q4
Tracked holders · last 8 quarters
-3 vs previous quarter over the last 8.
Price is -1.0% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
17 events
- AQR Capital Management added2026-02-17+5,046 shares · 2025Q4Position
- +78,905 shares · 2025Q4Position
- T. Rowe Price added2026-02-17+2,226 shares · 2025Q4Position
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−26,981 shares · 2025Q4Position
- D.E. Shaw & Co. exited2026-02-17−10,632 shares · 2025Q4Position
- −23,795 shares · 2025Q4Position
- Renaissance Technologies exited2026-02-12−111,600 shares · 2025Q4Position
- Norges Bank (Norway SWF) opened position2026-02-10+47,531 shares · 2025Q4Position
- AQR Capital Management added2025-11-14+489 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) exited2025-11-14−360,172 shares · 2025Q3Position
- D.E. Shaw & Co. trimmed2025-11-14−1,443 shares · 2025Q3Position
- Lee Ainslie (Maverick Capital) exited2025-11-14−77,883 shares · 2025Q3Position
- T. Rowe Price added2025-11-14+4,192 shares · 2025Q3Position
- +23,795 shares · 2025Q3Position
- Renaissance Technologies opened position2025-11-13+111,600 shares · 2025Q3Position
- Norges Bank (Norway SWF) exited2025-11-13−254,909 shares · 2025Q3Position
- Norges Bank (Norway SWF) added2025-11-12+183,715 shares · 2024Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of PRKS…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| T. Rowe Price | 2020Q1 | $40.11 | -10.4% | $8.9M |
| AQR Capital Management | 2018Q3 | $44.70 | -19.6% | $615K |
| Izzy Englander (Millennium Mgmt) | 2016Q2 | $47.22 | -23.9% | $2.8M |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $51.13 | -29.7% | $248K |
| Norges Bank (Norway SWF) | 2016Q1 | $356.80 | -89.9% | $1.7M |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions2
- Izzy Englander (Millennium Mgmt)+78,905$2.9M
- Norges Bank (Norway SWF)+47,531$1.7M
Added to2
- AQR Capital Management+5,046$183K
- T. Rowe Price+2,226$81
Trimmed1
- Ken Griffin (Citadel Advisors)−26,981$979K
Exited3
- Renaissance Technologies−111,600$5.8M
- Ray Dalio (Bridgewater Associates)−23,795$1.2M
- D.E. Shaw & Co.−10,632$550K
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 13 | $32.26B |
| 2022Q2 | 13 | $18.79B |
| 2022Q3 | 15 | $239.4M |
| 2022Q4 | 13 | $290.6M |
| 2023Q1 | 13 | $306.8M |
| 2023Q2 | 11 | $256.9M |
| 2023Q3 | 12 | $209.5M |
| 2023Q4 | 12 | $259.6M |
| 2024Q1 | 10 | $254.0M |
| 2024Q2 | 13 | $214.6M |
| 2024Q3 | 10 | $46.8M |
| 2024Q4 | 10 | $41.8M |
| 2025Q1 | 10 | $30.8M |
| 2025Q2 | 9 | $68.4M |
| 2025Q3 | 8 | $23.2M |
| 2025Q4 | 5 | $14.5M |
Congress members trading this stock
| Date | Member | Type | Amount range | Filing |
|---|---|---|---|---|
| 2025-03-03 | Julie Johnson | Sell | $1K – $15K | PDF ↗ |
Who owns PRKS
5 super-investors · 2025Q4
Tracked stake
399.5K
shares
Combined value
$15M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New2Added2Trim1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | T. Rowe Price | 249.0K | $9M |
| 2 | Izzy Englander Millennium Mgmt | 78.9K | $3M |
| 3 | Norges Bank Norway SWF | 47.5K | $2M |
| 4 | AQR Capital Management | 17.1K | $622K |
| 5 | Ken Griffin Citadel Advisors | 6.9K | $251K |
Recent moves
20 transactions
- +78,905 · 2025Q4
- −26,981 · 2025Q4
- +5,046 · 2025Q4
- SOLDD.E. Shaw & Co.−10,632 · 2025Q4
- +2,226 · 2025Q4
- −23,795 · 2025Q4
- −111,600 · 2025Q4
- +47,531 · 2025Q4
- −360,172 · 2025Q3
- TRIMD.E. Shaw & Co.−1,443 · 2025Q3
- −77,883 · 2025Q3
- +4,192 · 2025Q3
- +489 · 2025Q3
- +23,795 · 2025Q3
- −254,909 · 2025Q3
- +111,600 · 2025Q3
- +183,715 · 2024Q3
- −45,887 · 2025Q2
- −28,121 · 2025Q2
- +351,423 · 2025Q2
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