Ticker · CUSIP 74587V107

PBYI

PUMA BIOTECHNOLOGY INC
···Share
Holders (tracked)
8
Combined shares
3,551,085
Combined value
$20.97M
Last close
Quarter
2025Q4
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
882024Q12025Q4

SEC event timeline

15 events
  1. +162,670 shares · 2025Q4
    13F
  2. +106,225 shares · 2025Q4
    13F
  3. −89,019 shares · 2025Q4
    13F
  4. −120,302 shares · 2025Q4
    13F
  5. +4,311 shares · 2025Q4
    13F
  6. −149,552 shares · 2025Q4
    13F
  7. +535,933 shares · 2025Q4
    13F
  8. −27,400 shares · 2025Q4
    13F
  9. −228,976 shares · 2025Q3
    13F
  10. −134,495 shares · 2025Q3
    13F
  11. −11,101 shares · 2025Q3
    13F
  12. +149,552 shares · 2025Q3
    13F
  13. −142,182 shares · 2025Q3
    13F
  14. +2,059 shares · 2025Q3
    13F
  15. +276,500 shares · 2025Q3
    13F

Insider activity

No insider transactions in the last 30 days.

Who moved on this name in 2025Q4

13F transactions reported for the latest quarter, grouped by direction.
New positions1
Added to3
Trimmed3
Exited1

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
8
$24.2M
2022Q2
7
$21.5M
2022Q3
10
$18K
2022Q4
8
$9.0M
2023Q1
9
$6.2M
2023Q2
8
$17.4M
2023Q3
8
$13.3M
2023Q4
7
$22.0M
2024Q1
8
$28.0M
2024Q2
8
$27.9M
2024Q3
8
$12.3M
2024Q4
9
$12.9M
2025Q1
8
$12.0M
2025Q2
8
$12.8M
2025Q3
8
$16.5M
2025Q4
8
$21.0M

Who owns PBYI

8 super-investors · 2025Q4
Tracked stake
3.55M
shares
Combined value
$21M
% of shares outstanding
shares-out unknown
Quarter action mix
New2Added3Trim3
#ManagerSharesValue
1Renaissance Technologies2.12M$13M
2AQR Capital Management666.6K$4M
3D.E. Shaw & Co.378.3K$2M
4Ken Griffin
Citadel Advisors
162.7K$968K
5Two Sigma Investments162.4K$966K
6Izzy Englander
Millennium Mgmt
16.6K$99K
7Ken Griffin
Citadel Advisors
14.8K$88K
8T. Rowe Price25.9K$155

Recent moves

20 transactions
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