- Quarter end
- 31 Dec 2025
- the date the book describes
- Filed
- 27 Oct 2026
- latest of these filings; the earliest 5 Feb 2026
- Managers listing it
- 27
- at least, of 95 tracked, among listed positions
- Comparable managers
- 92
- filed both Q3 2025 and Q4 2025; 4 listed it in both
- Shares listed
- 18,502,467
- combined, among listed positions
- Reported value
- $194m
- combined, at the quarter end
Among the 92 comparable managers: 21 buyers (opened or added shares) and 8 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -417,913.
Managers listing PK in Q4 2025
27 of 27 holders
Largest increases and reductions, by shares
Increases
- Millennium Management LLCexisting position · 1,176,980 shares now+1,128,070
- Citadel Advisors LLCexisting position · 1,445,002 shares now+824,815
- Marshall Wace LLPnew position · 718,662 shares now+718,662
- Invesco Ltdexisting position · 2,260,448 shares now+497,665
- Jane Street Group LLCnew position · 483,213 shares now+483,213
Reductions
- Arrowstreet Capital LPexisting position · 2,365,787 shares now-2,708,859
- AQR Capital Management LLCexisting position · 4,822,174 shares now-2,496,317
- Verition Fund Management LLCexisting position · 255,200 shares now-50,677
- Freestone Grove Partners LPexisting position · 44,592 shares now-24,632
- Fidelity (FMR LLC)existing position · 110,519 shares now-12,139
New positions and exits
New (6)
Exited (2)
- Schonfeld Strategic Advisors LLCwas $4.5m
- ExodusPoint Capital Management LPwas $4.1m
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q4 2016 | 1 | $4.1m | n.a. | n.a. |
| Q1 2017 | 6 | $281m | n.a. | n.a. |
| Q2 2017 | 6 | $267m | n.a. | n.a. |
| Q3 2017 | 6 | $384m | n.a. | n.a. |
| Q4 2017 | 10 | $599m | n.a. | n.a. |
| Q1 2018 | 6 | $1.0bn | n.a. | n.a. |
| Q2 2018 | 5 | $1.1bn | n.a. | n.a. |
| Q3 2018 | 5 | $1.1bn | n.a. | n.a. |
| Q4 2018 | 10 | $878m | n.a. | n.a. |
| Q1 2019 | 8 | $946m | n.a. | n.a. |
| Q2 2019 | 11 | $606m | n.a. | n.a. |
| Q3 2019 | 6 | $615m | n.a. | n.a. |
| Q4 2019 | 4 | $673m | n.a. | n.a. |
| Q1 2020 | 6 | $111m | n.a. | n.a. |
| Q2 2020 | 4 | $37m | n.a. | n.a. |
| Q3 2020 | 1 | $7.2m | n.a. | n.a. |
| Q1 2021 | 1 | $2.3m | n.a. | n.a. |
| Q2 2021 | 3 | $49m | n.a. | n.a. |
| Q3 2021 | 4 | $61m | n.a. | n.a. |
| Q4 2021 | 4 | $115m | n.a. | n.a. |
| Q1 2022 | 7 | $177m | n.a. | n.a. |
| Q2 2022 | 6 | $113m | n.a. | n.a. |
| Q3 2022 | 4 | $36m | n.a. | n.a. |
| Q4 2022 | 5 | $34m | n.a. | n.a. |
| Q1 2023 | 5 | $54m | n.a. | n.a. |
| Q2 2023 | 4 | $76m | n.a. | n.a. |
| Q3 2023 | 6 | $120m | n.a. | n.a. |
| Q4 2023 | 6 | $118m | 5 | 1 |
| Q1 2024 | 8 | $200m | 6 | 1 |
| Q2 2024 | 7 | $228m | 5 | 1 |
| Q3 2024 | 6 | $197m | 1 | 5 |
| Q4 2024 | 3 | $127m | 1 | 2 |
| Q1 2025 | 5 | $156m | 4 | 0 |
| Q2 2025 | 5 | $176m | 3 | 2 |
| Q3 2025 | 5 | $146m | 2 | 4 |
| Q4 2025 | 1 | $3.5m | 21 | 8 |
| Q1 2026 | 1 | $3.3m | 15 | 14 |
| Q2 2026 | 1 | $5.9m | 15 | 11 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
PK and AMZN →PK and TSLA →PK and HD →Choose a stock to compare with PK →
How much of the picture this is
A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.
Which funds own PK, latest filings →Back to the 13F Explorer →