Puma Biotechnology, Inc.

PBYI

Exchange: Nasdaq
Industry: Pharmaceutical Preparations
SEC CIK: 0001401667

SEC filings (opens in a new tab)

In the last 90 days, Puma Biotechnology, Inc. insiders filed 0 open-market purchases and 5 sales; 160 institutions reported holding it in 13F filings for Q2 2026, worth $313.6M in total; no superinvestor holds it.

Q1 2025 vs. Q4 2024

How the institutions holding Puma Biotechnology, Inc. changed between Q4 2024 and Q1 2025.

All holders in Q1 2025 All holders in Q4 2024

13F holders of PBYI: Q4 2024 compared with Q1 2025
Measure	Q4 2024	Of which not filed for Q1 2025	Q1 2025	Change
Holders	112	1	116	+5
Shares	29.4M	79.1K	30.4M	+1.10M (+3.7%)
Value	$89.7M	$241.3K	$90.0M	+$611.2K (+0.7%)

1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (25)

Institutions that held Puma Biotechnology, Inc. at the end of Q1 2025 but not at the end of Q4 2024.

Institutions new to PBYI in Q1 2025
Institution	Shares	Value	% of portfolio
Arrowstreet Capital, Limited Partnership	358,621	$1.06M	0.00%
Nuveen, LLC	79,101	$234.1K	0.00%
Virtus ETF Advisers LLC	55,431	$164.1K	0.11%
Universal- Beteiligungs- und Servicegesellschaft mbH	39,308	$116.4K	0.00%
Man Group plc	37,469	$110.9K	0.00%
Virtu Financial LLC	31,477	$93.0K	0.01%
Deutsche Bank AG	30,743	$91.0K	0.00%
MetLife Investment Management	27,121	$80.3K	0.00%
Bailard, Inc.	24,702	$73.1K	0.00%
Dynamic Technology Lab Private Ltd	22,030	$66.0K	0.01%
HSBC Holdings PLC	20,509	$60.5K	0.00%
PFG Investments, LLC	20,000	$59.2K	0.00%
Manufacturers Life Insurance Company, The	16,506	$48.9K	0.00%
Williams & Novak, LLC	14,720	$43.1K	0.04%
Causeway Capital Management LLC	14,095	$41.7K	0.00%
CAPROCK Group, Inc.	13,817	$40.9K	0.00%
Quadrature Capital Ltd	12,508	$37.0K	0.00%
Sherbrooke Park Advisers LLC	12,224	$36.2K	0.02%
Private Wealth Asset Management, LLC	2,000	$5.92K	0.00%
Rialto Wealth Management, LLC	1,450	$4.29K	0.00%
Headlands Technologies LLC	1,217	$3.60K	0.00%
WealthCollab, LLC	311	$921	0.00%
Coldstream Capital Management Inc	304	$900	0.00%
South State Corp.	111	$329	0.00%
EverSource Wealth Advisors, LLC	6	$18	0.00%

Sold out (20)

Institutions that held Puma Biotechnology, Inc. at the end of Q4 2024 and filed for Q1 2025 without it.

Institutions that sold out of PBYI in Q1 2025
Institution	Shares, Q4 2024	Value, Q4 2024
Citadel Advisors LLC	159,425	$486.2K
Squarepoint Ops LLC	75,929	$231.6K
Panagora Asset Management Inc	58,849	$179.5K
Winton Group Ltd	38,241	$116.6K
Schonfeld Strategic Advisors LLC	35,300	$107.7K
Cubist Systematic Strategies, LLC	32,615	$99.5K
SG Americas Securities, LLC	24,668	$75.0K
Jane Street Group, LLC	22,480	$68.6K
State of Wyoming	20,426	$62.3K
Ritholtz Wealth Management	20,128	$61.4K
Bayesian Capital Management, LP	17,700	$54.0K
Jain Global LLC	11,871	$36.2K
ProShare Advisors LLC	11,853	$36.2K
PDT Partners, LLC	11,131	$34.0K
Verition Fund Management LLC	10,955	$33.4K
Advantage Alpha Capital Partners LP	6,796	$20.7K
R Squared Ltd	5,020	$15.3K
Caitong International Asset Management Co., Ltd	133	$406
Aventura Private Wealth, LLC	100	$305
Richards, Merrill & Peterson, Inc.	40	$122

Not filed for Q1 2025 yet (1)

Institutions that held Puma Biotechnology, Inc. at the end of Q4 2024 and haven't filed a 13F for Q1 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding PBYI in Q4 2024 that haven't filed for Q1 2025
Institution	Shares, Q4 2024	Value, Q4 2024
Nuveen Asset Management, LLC	79,101	$241.3K