PUMA BIOTECHNOLOGY, INC. - Common Stock, par value $0.0001 per share (PBYI)

Q: What does CUSIP 74587V107 represent in this 13F holders report?

CUSIP 74587V107 is the security identifier for PBYI - PUMA BIOTECHNOLOGY, INC. - Common Stock, par value $0.0001 per share used to aggregate holder disclosures.

Q: How many institutions held PBYI - PUMA BIOTECHNOLOGY, INC. - Common Stock, par value $0.0001 per share in Q3 2021?

112 institutional investors reported PBYI - PUMA BIOTECHNOLOGY, INC. - Common Stock, par value $0.0001 per share for Q3 2021. Use the holders table for investor-level position and value details.

CUSIP: 74587V107

Q3 2021 13F Holders as of 30 Sep 2021

Security type / class: Equity / Common Stock, par value $0.0001 per share
Total 13F shares: 32,161,600
Total 13F value: $225,498,183
Share change: -2,599,527
Put/Call ratio: 48%
SEC-reported price per share: $7.01
Number of holders: 112
Value change: -$28,665,006
Number of buys: 61
Number of sells: 49
Shares outstanding: 54,055,988

Security key

74587V107

Report period

Q3 2021

Institutions

112

Top holders

PBYI full security history Ownership snapshot Full 13F holder table Newer quarter: Q3 2026 PUMA BIOTECHNOLOGY, INC. SEC filings PUMA BIOTECHNOLOGY, INC. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 74587V107

Newer quarter: Q3 2026

Recent filing periods:

Q3 2026

Ownership snapshot

Top reported holders of PBYI - PUMA BIOTECHNOLOGY, INC. - Common Stock, par value $0.0001 per share (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

DEERFIELD MANAGEMENT COMP...

Disclosed value leader

DEERFIELD MANAGEMENT COMP...

Comparable rows

0/15

Latest evidence

30 Jun 2021

13F Highest disclosed value: $34,607,000 15 rows are not safely comparable across share classes. Showing 1-6 of 15 holder rows.

Quick read

DEERFIELD MANAGEMENT COMPANY, L.P. has the largest disclosed position value at $34.61M.

0 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 DEERFIELD MANAGEMENT COMPANY, L.P.'s linked filing trail.

Disclosed position value Top 5

DEERFIELD MANAGEMENT COMPANY, L.P. $34.61M

VANGUARD GROUP INC $32.92M

BlackRock Finance, Inc. $28.14M

FRED ALGER MANAGEMENT, LLC $27.41M

Camber Capital Management LP $25.02M

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
DEERFIELD MANAGEMENT COMPANY, L.P.	13F Company 13F	— denominator unverified	$34,607,000 3,769,795 shares	—	30 Jun 2021
VANGUARD GROUP INC	13F Company 13F	— denominator unverified	$32,920,000 3,586,043 shares	—	30 Jun 2021
BlackRock Finance, Inc.	13F Company 13F	— denominator unverified	$28,144,000 3,065,764 shares	—	30 Jun 2021
FRED ALGER MANAGEMENT, LLC	13F Company 13F	— denominator unverified	$27,411,000 2,985,976 shares	—	30 Jun 2021
Camber Capital Management LP	13F Company 13F	— denominator unverified	$25,016,000 2,725,000 shares	—	30 Jun 2021
RENAISSANCE TECHNOLOGIES LLC	13F Company 13F	— denominator unverified	$14,673,000 1,598,335 shares	—	30 Jun 2021

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 Q3 2021

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

112

32,161,600

Rows available

112

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 Q3 2021 vs Q2 2021 Across Filers

Q2 2021 holders

118

Q3 2021 holders

112

Holder diff

-6

Investor	Q2 2021 Shares	Q3 2021 Shares	Share Diff	Share Chg %	Q2 2021 value	Q3 2021 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend