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Puma Biotechnology
PBYI
PBYI
157 hedge funds and large institutions have $242M invested in Puma Biotechnology in 2026 Q1 according to their latest regulatory filings, with 29 funds opening new positions, 61 increasing their positions, 38 reducing their positions, and 18 closing their positions.
New
Increased
Maintained
Reduced
Closed
77,400% more call options, than puts
Call options by funds: $775K | Put options by funds: $1K
61% more first-time investments, than exits
New positions opened: 29 | Existing positions closed: 18
61% more repeat investments, than reductions
Existing positions increased: 61 | Existing positions reduced: 38
15% more capital invested
Capital invested by funds: $210M → $242M (+$31.6M)
4.28% more ownership
Funds ownership: 70.14% → 74.42% (+4.3%)
4% more funds holding
Funds holding: 151 → 157 (+6)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
Holders
157
Holders Change
+6
Holders Change %
+3.97%
% of All Funds
1.93%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
29
Increased
61
Reduced
38
Closed
18
Calls
$775K
Puts
$1K
Net Calls
+$774K
Net Calls Change
+$77K
Top Buyers
Top Sellers
| 1 |
Renaissance Technologies
New York
|
-$1.17M |
| 2 |
Mackenzie Financial
Toronto Ontario,
Ontario, Canada
|
-$966K |
| 3 |
Two Sigma Investments
New York
|
-$963K |
| 4 |
Citadel Advisors
Miami,
Florida
|
-$856K |
| 5 |
Los Angeles Capital Management
Los Angeles,
California
|
-$809K |
