Security key
74587V107
PUMA BIOTECHNOLOGY, INC. - Common Stock (PBYI)
CUSIP: 74587V107
Q2 2025 13F Holders as of 30 Jun 2025
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 32,782,327
- Total 13F value
- $112,437,236
- Share change
- +2,453,997
- Put/Call ratio
- 0%
- SEC-reported price per share
- $3.43
- Number of holders
- 121
- Value change
- +$8,596,760
- Number of buys
- 64
- Number of sells
- 48
- Shares outstanding
- 49,633,071
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2025
Institutions
121
Top holders
10
PBYI full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
PUMA BIOTECHNOLOGY, INC. SEC filings
PUMA BIOTECHNOLOGY, INC. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 74587V107
Recent filing periods:
Ownership snapshot
Top reported holders of PBYI - PUMA BIOTECHNOLOGY, INC. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
ACORN BIOVENTURES, L.P.
Disclosed value leader
ACORN BIOVENTURES, L.P.
Comparable rows
15/15
Latest evidence
31 Mar 2025
13D/G
13F
Lead comparable stake: 8%
13D/G row: ACORN BIOVENTURES, L.P.
Showing 1-6 of 15 holder rows.
Quick read
ACORN BIOVENTURES, L.P. leads the comparable SEC ownership view at 8%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens ACORN BIOVENTURES, L.P.'s linked filing trail.
Comparable ownership
Top 5
ACORN BIOVENTURES, L.P.
8%
BlackRock, Inc.
5.6%
MILLENNIUM MANAGEMENT LLC
3.9%
ACORN CAPITAL ADVISORS, LLC
7.9%
VANGUARD GROUP INC
7.4%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| ACORN BIOVENTURES, L.P. |
13D/G
Anders Hove
|
8%
|
$11,859,557
3,940,052 shares
|
+$1,988,442 | 31 Dec 2024 |
| BlackRock, Inc. |
13F
13D/G
Company
|
5.6%
from 13D/G
|
$11,388,209
3,847,368 shares
|
— | 31 Mar 2025 |
| MILLENNIUM MANAGEMENT LLC |
13D/G
13F
Company
|
3.9%
|
$5,701,319
1,894,126 shares
|
$0 | 31 Dec 2024 |
| ACORN CAPITAL ADVISORS, LLC |
13F
Company
|
7.9%
|
$11,662,554
3,940,052 shares
|
— | 31 Mar 2025 |
| VANGUARD GROUP INC |
13F
Company
|
7.4%
|
$10,861,018
3,669,263 shares
|
— | 31 Mar 2025 |
| ACADIAN ASSET MANAGEMENT LLC |
13F
Company
|
4%
|
$5,940,000
2,008,146 shares
|
— | 31 Mar 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
121
Shares
32,782,327
Rows available
121
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2025 vs Q1 2025 Across Filers
Q1 2025 holders
116
Q2 2025 holders
121
Holder diff
5
| Investor | Q1 2025 Shares | Q2 2025 Shares | Share Diff | Share Chg % | Q1 2025 value | Q2 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend