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PBYI Insider Trading

Insider Ownership Percentage: 23.30%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $830,440.10

Puma Biotechnology Insider Trading History Chart

This chart shows the insider buying and selling history at Puma Biotechnology by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Puma Biotechnology Share Price & Price History

Current Price: $5.29
Price Change: ▲ Price Increase of +0.1 (1.93%)
As of 12/4/2025 05:00 PM ET

This chart shows the closing price history over time for PBYI up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Puma Biotechnology Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
11/11/2025Michael Patrick MillerDirectorSell20,000$4.86$97,200.0054,000View SEC Filing Icon  
7/18/2025Alessandra CesanoDirectorSell27,000$3.37$90,990.0041,850View SEC Filing Icon  
7/9/2025Alan H. AuerbachCEOSell21,580$3.54$76,393.207,180,901View SEC Filing Icon  
7/9/2025Douglas M. HuntInsiderSell3,443$3.54$12,188.22164,894View SEC Filing Icon  
7/8/2025Alan H. AuerbachCEOSell25,592$3.53$90,339.767,202,481View SEC Filing Icon  
7/8/2025Douglas M. HuntInsiderSell4,374$3.53$15,440.22168,337View SEC Filing Icon  
6/13/2025Adrian SenderowiczDirectorSell27,000$3.40$91,800.0027,000View SEC Filing Icon  
6/13/2025Alessandra CesanoDirectorSell12,150$3.40$41,310.0068,850View SEC Filing Icon  
6/13/2025Allison DorvalDirectorSell11,610$3.40$39,474.0075,390View SEC Filing Icon  
6/13/2025Brian M StuglikDirectorSell8,100$3.39$27,459.0094,958View SEC Filing Icon  
6/13/2025Jay M MoyesDirectorSell22,000$3.40$74,800.0053,322View SEC Filing Icon  
6/13/2025Troy Edward WilsonDirectorSell10,800$3.40$36,720.0043,550View SEC Filing Icon  
1/2/2025Alan H. AuerbachCEOSell33,841$3.15$106,599.157,029,674View SEC Filing Icon  
1/2/2025Jeffrey Jerome LudwigInsiderSell9,437$3.15$29,726.55108,951View SEC Filing Icon  
8/12/2024Michael Patrick MillerDirectorSell23,358$3.49$81,519.4247,000View SEC Filing Icon  
7/17/2024Alan H. AuerbachCEOSell21,920$3.70$81,104.007,063,515View SEC Filing Icon  
7/17/2024Jeffrey Jerome LudwigInsiderSell2,598$3.70$9,612.60118,388View SEC Filing Icon  
7/17/2024Maximo F. NouguesCFOSell4,156$3.70$15,377.20162,522View SEC Filing Icon  
7/2/2024Alan H. AuerbachCEOSell18,885$3.27$61,753.957,085,435View SEC Filing Icon  
7/2/2024Jeffrey Jerome LudwigInsiderSell6,051$3.27$19,786.77120,986View SEC Filing Icon  
7/2/2024Maximo F. NouguesCFOSell5,295$3.27$17,314.65166,678View SEC Filing Icon  
6/13/2024Troy Edward WilsonDirectorSell27,000$3.33$89,910.00350View SEC Filing Icon  
1/3/2024Alan H. AuerbachCEOSell41,396$4.49$185,868.046,936,947View SEC Filing Icon  
1/3/2024Alvin F. WongInsiderSell7,733$4.49$34,721.1798,214View SEC Filing Icon  
1/3/2024Maximo F. NouguesCFOSell15,682$4.49$70,412.18128,666View SEC Filing Icon  
11/7/2023Michael Patrick MillerDirectorSell25,000$2.83$70,750.0043,358View SEC Filing Icon  
7/3/2023Alan H. AuerbachCEOSell60,698$3.31$200,910.386,978,343View SEC Filing Icon  
7/3/2023Alvin F. WongInsiderSell6,938$3.31$22,964.78105,947View SEC Filing Icon  
7/3/2023Maximo F. NouguesCFOSell14,680$3.31$48,590.80144,348View SEC Filing Icon  
6/13/2023Troy Edward WilsonDirectorSell27,000$3.45$93,150.00350View SEC Filing Icon  
6/2/2023Alvin F. WongInsiderSell269$3.45$928.05112,885View SEC Filing Icon  
1/3/2023Alan H. AuerbachCEOSell27,241$4.18$113,867.386,852,638View SEC Filing Icon  
1/3/2023Alvin F. WongInsiderSell3,460$4.18$14,462.8054,553View SEC Filing Icon  
1/3/2023Maximo F. NouguesCFOSell10,499$4.18$43,885.82100,427View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for Puma Biotechnology (NASDAQ:PBYI)

61.29% of Puma Biotechnology stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at PBYI by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Puma Biotechnology Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
11/17/2025Virtus Advisers LLC47,172$0.25M0.2%+241.4%0.094%Search for SEC Filing on Google Icon
11/17/2025Sherbrooke Park Advisers LLC30,527$0.16M0.1%N/A0.061%Search for SEC Filing on Google Icon
11/17/2025Qube Research & Technologies Ltd155,516$0.83M0.0%+13.4%0.309%Search for SEC Filing on Google Icon
11/17/2025Prelude Capital Management LLC38,422$0.20M0.0%+15.0%0.076%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC105,633$0.56M0.0%-68.4%0.210%Search for SEC Filing on Google Icon
11/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.20,223$0.11M0.0%-14.9%0.040%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE44,967$0.24M0.0%-33.1%0.089%Search for SEC Filing on Google Icon
11/14/2025Lazard Asset Management LLC63,147$0.34M0.0%N/A0.125%Search for SEC Filing on Google Icon
11/14/2025Brooklyn Investment Group27,547$0.15M0.0%N/A0.055%Search for SEC Filing on Google Icon
11/14/2025Two Sigma Investments LP56,126$0.30M0.0%-70.6%0.111%Search for SEC Filing on Google Icon
11/14/2025Bridgeway Capital Management LLC433,561$2.30M0.0%+113.8%0.861%Search for SEC Filing on Google Icon
11/14/2025Squarepoint Ops LLC21,334$0.11M0.0%+19.9%0.042%Search for SEC Filing on Google Icon
11/13/2025Kennedy Capital Management LLC867,630$4.61M0.1%-12.1%1.722%Search for SEC Filing on Google Icon
11/13/2025Arrowstreet Capital Limited Partnership464,734$2.47M0.0%+2.9%0.923%Search for SEC Filing on Google Icon
11/13/2025UBS Group AG376,091$2M0.0%+37.2%0.747%Search for SEC Filing on Google Icon
11/13/2025BNP Paribas Financial Markets8,056$43K0.0%+39.7%0.016%Search for SEC Filing on Google Icon
11/13/2025Mackenzie Financial Corp175,210$0.93M0.0%-15.6%0.348%Search for SEC Filing on Google Icon
11/13/2025Franklin Resources Inc.173,698$0.92M0.0%+881.8%0.345%Search for SEC Filing on Google Icon
11/13/2025WINTON GROUP Ltd61,324$0.33M0.0%N/A0.122%Search for SEC Filing on Google Icon
11/13/2025Russell Investments Group Ltd.964,693$5.12M0.0%+4,823,365.0%1.915%Search for SEC Filing on Google Icon
11/13/2025First Trust Advisors LP119,779$0.64M0.0%N/A0.238%Search for SEC Filing on Google Icon
11/12/2025Dimensional Fund Advisors LP1,271,878$6.75M0.0%+10.6%2.525%Search for SEC Filing on Google Icon
11/10/2025Hillsdale Investment Management Inc.77,800$0.41M0.0%-8.3%0.154%Search for SEC Filing on Google Icon
11/10/2025D Orazio & Associates Inc.31,933$0.17M0.0%+112.5%0.063%Search for SEC Filing on Google Icon
11/7/2025Vanguard Group Inc.3,691,720$19.60M0.0%-0.4%7.329%Search for SEC Filing on Google Icon
11/7/2025JPMorgan Chase & Co.17,285$92K0.0%-14.6%0.034%Search for SEC Filing on Google Icon
11/6/2025LSV Asset Management559,921$2.97M0.0%+4.5%1.112%Search for SEC Filing on Google Icon
11/6/2025Caprock Group LLC11,768$59K0.0%N/A0.023%Search for SEC Filing on Google Icon
11/4/2025State of Wyoming12,737$68K0.0%N/A0.025%Search for SEC Filing on Google Icon
11/3/2025Federated Hermes Inc.197,981$1.05M0.0%-2.2%0.393%Search for SEC Filing on Google Icon
10/31/2025Perkins Capital Management Inc.12,200$65K0.1%N/A0.024%Search for SEC Filing on Google Icon
10/31/2025PFG Investments LLC15,000$80K0.0%-25.0%0.030%Search for SEC Filing on Google Icon
10/30/2025Strs Ohio124,900$0.66M0.0%-15.2%0.248%Search for SEC Filing on Google Icon
10/30/2025Universal Beteiligungs und Servicegesellschaft mbH198,508$1.05M0.0%+405.0%0.394%Search for SEC Filing on Google Icon
10/28/2025Ritholtz Wealth Management470,767$2.50M0.0%+139.0%0.935%Search for SEC Filing on Google Icon
10/22/2025Kathmere Capital Management LLC27,953$0.15M0.0%+38.4%0.055%Search for SEC Filing on Google Icon
10/20/2025Baron Wealth Management LLC21,767$0.12M0.0%N/A0.043%Search for SEC Filing on Google Icon
10/17/2025Ethic Inc.10,353$55K0.0%-31.7%0.021%Search for SEC Filing on Google Icon
10/7/2025Assenagon Asset Management S.A.72,979$0.39M0.0%N/A0.145%Search for SEC Filing on Google Icon
8/16/2025Evergreen Capital Management LLC96,000$0.33M0.0%N/A0.191%Search for SEC Filing on Google Icon
8/15/2025Bridgeway Capital Management LLC202,790$0.70M0.0%+150.0%0.403%Search for SEC Filing on Google Icon
8/15/2025Bank of America Corp DE67,242$0.23M0.0%-27.8%0.133%Search for SEC Filing on Google Icon
8/15/2025Acorn Capital Advisors LLC4,131,299$14.17M9.3%+4.9%8.202%Search for SEC Filing on Google Icon
8/14/2025Jane Street Group LLC39,448$0.14M0.0%N/A0.078%Search for SEC Filing on Google Icon
8/14/2025Sei Investments Co.347,234$1.19M0.0%+11.4%0.689%Search for SEC Filing on Google Icon
8/14/2025Qube Research & Technologies Ltd137,079$0.47M0.0%-10.4%0.272%Search for SEC Filing on Google Icon
8/14/2025Cerity Partners LLC10,528$36K0.0%N/A0.021%Search for SEC Filing on Google Icon
8/13/2025Marshall Wace LLP73,415$0.25M0.0%-66.1%0.146%Search for SEC Filing on Google Icon
8/13/2025Kennedy Capital Management LLC987,001$3.39M0.1%+8.3%1.960%Search for SEC Filing on Google Icon
8/13/2025Invesco Ltd.49,982$0.17M0.0%+32.8%0.099%Search for SEC Filing on Google Icon
8/13/2025Arrowstreet Capital Limited Partnership451,633$1.55M0.0%+25.9%0.897%Search for SEC Filing on Google Icon
8/13/2025Panagora Asset Management Inc.76,684$0.26M0.0%N/A0.152%Search for SEC Filing on Google Icon
8/13/2025Virtus Advisers LLC13,817$47K0.1%-75.1%0.027%Search for SEC Filing on Google Icon
8/13/2025State Board of Administration of Florida Retirement System71,727$0.25M0.0%N/A0.142%Search for SEC Filing on Google Icon
8/12/2025XTX Topco Ltd104,424$0.36M0.0%-16.7%0.207%Search for SEC Filing on Google Icon
8/12/2025Prudential Financial Inc.281,244$0.97M0.0%-8.7%0.558%Search for SEC Filing on Google Icon
8/12/2025American Century Companies Inc.1,342,275$4.60M0.0%+16.8%2.665%Search for SEC Filing on Google Icon
8/12/2025Rhumbline Advisers60,611$0.21M0.0%+58.3%0.120%Search for SEC Filing on Google Icon
8/12/2025Franklin Resources Inc.17,691$61K0.0%-77.4%0.035%Search for SEC Filing on Google Icon
8/12/2025Hillsdale Investment Management Inc.84,800$0.29M0.0%N/A0.168%Search for SEC Filing on Google Icon
8/12/2025JPMorgan Chase & Co.20,245$69K0.0%-58.1%0.040%Search for SEC Filing on Google Icon
8/11/2025LSV Asset Management535,740$1.84M0.0%+903.3%1.064%Search for SEC Filing on Google Icon
8/8/2025Intech Investment Management LLC20,823$71K0.0%-31.7%0.042%Search for SEC Filing on Google Icon
8/8/2025D Orazio & Associates Inc.15,027$52K0.0%N/A0.030%Search for SEC Filing on Google Icon
8/8/2025Geode Capital Management LLC971,674$3.33M0.0%+1.7%1.958%Search for SEC Filing on Google Icon
8/7/2025Connor Clark & Lunn Investment Management Ltd.900,256$3.09M0.0%+8.2%1.814%Search for SEC Filing on Google Icon
8/7/2025Los Angeles Capital Management LLC445,477$1.53M0.0%+9.5%0.898%Search for SEC Filing on Google Icon
8/6/2025Prospera Financial Services Inc191,244$0.66M0.0%+3.8%0.385%Search for SEC Filing on Google Icon
8/6/2025Metis Global Partners LLC55,798$0.19M0.0%+30.5%0.112%Search for SEC Filing on Google Icon
8/6/2025Savant Capital LLC12,971$44K0.0%N/A0.026%Search for SEC Filing on Google Icon
7/30/2025Ethic Inc.15,168$51K0.0%N/A0.031%Search for SEC Filing on Google Icon
7/28/2025Ritholtz Wealth Management196,985$0.68M0.0%N/A0.397%Search for SEC Filing on Google Icon
7/25/2025CWM LLC9,462$32K0.0%+214.1%0.019%Search for SEC Filing on Google Icon
7/17/2025C2C Wealth Management LLC20,620$71K0.1%+36.1%0.042%Search for SEC Filing on Google Icon
7/16/2025Kathmere Capital Management LLC20,204$69K0.0%N/A0.041%Search for SEC Filing on Google Icon
7/14/2025Kapitalo Investimentos Ltda70,269$0.24M0.1%N/A0.142%Search for SEC Filing on Google Icon
6/27/2025Goldman Sachs Group Inc.294,243$0.87M0.0%-6.3%0.593%Search for SEC Filing on Google Icon
5/28/2025Strs Ohio141,900$0.42M0.0%N/A0.286%Search for SEC Filing on Google Icon
5/21/2025Acadian Asset Management LLC2,008,146$5.94M0.0%+1.8%4.046%Search for SEC Filing on Google Icon
5/16/2025Goldman Sachs Group Inc.294,243$0.87M0.0%-6.3%0.593%Search for SEC Filing on Google Icon
5/16/2025Dynamic Technology Lab Private Ltd22,030$66K0.0%N/A0.044%Search for SEC Filing on Google Icon
5/16/2025Millennium Management LLC1,385,194$4.10M0.0%-26.9%2.791%Search for SEC Filing on Google Icon
5/16/2025AQR Capital Management LLC50,458$0.15M0.0%+366.5%0.102%Search for SEC Filing on Google Icon
5/15/2025Royal Bank of Canada85,999$0.25M0.0%+3.8%0.173%Search for SEC Filing on Google Icon
5/14/2025Causeway Capital Management LLC14,095$42K0.0%N/A0.028%Search for SEC Filing on Google Icon
5/14/2025Virtus Advisers LLC55,431$0.16M0.2%N/A0.112%Search for SEC Filing on Google Icon
5/14/2025MetLife Investment Management LLC27,121$80K0.0%N/A0.055%Search for SEC Filing on Google Icon
5/14/2025Walleye Capital LLC13,055$39K0.0%-66.4%0.026%Search for SEC Filing on Google Icon
5/14/2025Hsbc Holdings PLC20,509$61K0.0%N/A0.041%Search for SEC Filing on Google Icon
5/13/2025American Century Companies Inc.1,149,660$3.40M0.0%+21.2%2.316%Search for SEC Filing on Google Icon
5/13/2025Russell Investments Group Ltd.20,893$62K0.0%+104,365.0%0.042%Search for SEC Filing on Google Icon
5/12/2025Nuveen LLC79,101$0.23M0.0%N/A0.159%Search for SEC Filing on Google Icon
5/12/2025Virtu Financial LLC31,477$93K0.0%N/A0.063%Search for SEC Filing on Google Icon
5/12/2025Invesco Ltd.37,631$0.11M0.0%+88.9%0.076%Search for SEC Filing on Google Icon
5/12/2025Connor Clark & Lunn Investment Management Ltd.831,689$2.46M0.0%+70.6%1.676%Search for SEC Filing on Google Icon
5/9/2025Deutsche Bank AG30,743$91K0.0%N/A0.062%Search for SEC Filing on Google Icon
5/8/2025XTX Topco Ltd125,317$0.37M0.0%+110.0%0.252%Search for SEC Filing on Google Icon
5/8/2025Federated Hermes Inc.200,962$0.60M0.0%+22.8%0.405%Search for SEC Filing on Google Icon
5/7/2025Mackenzie Financial Corp157,713$0.47M0.0%+100.5%0.318%Search for SEC Filing on Google Icon
5/6/2025Universal Beteiligungs und Servicegesellschaft mbH39,308$0.12M0.0%N/A0.079%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Puma Biotechnology logo
Puma Biotechnology, Inc., a biopharmaceutical company, focuses on the development and commercialization of products to enhance cancer care in the United States and internationally. The company offers NERLYNX, an oral version of neratinib that is used to treat adult patients with early stage HER2-overexpressed/amplified breast cancer; and advanced or metastatic HER2-positive breast cancer when combined with capecitabine. It also develops alisertib, a small molecule inhibitor of aurora kinase A for the treatment of hormone receptor positive breast cancer, triple negative breast cancer, small cell lung cancer, and head and neck cancer. The company sells its products through specialty pharmacy and distributor networks. It has license agreements with Pfizer Inc. for the development, manufacture, and commercialization of neratinib (oral), neratinib (intravenous), PB357, and related compounds; and Takeda Pharmaceutical Company Limited for the research, development, and commercialization of alisertib, as well as sub-license agreements with Specialised Therapeutics Asia Pte Ltd., Medison Pharma Ltd., Pint Pharma International SA, Knight Therapeutics, Inc., Pierre Fabre Medicament SAS, and Bixink Therapeutics Co., Ltd. The company was founded in 2010 and is headquartered in Los Angeles, California.
Read More on Puma Biotechnology

Today's Range

Now: $5.29
Low: $5.16
High: $5.32

50 Day Range

MA: $5.13
Low: $4.73
High: $5.99

52 Week Range

Now: $5.29
Low: $2.58
High: $6.12

Volume

420,945 shs

Average Volume

631,840 shs

Market Capitalization

$266.56 million

P/E Ratio

7.15

Dividend Yield

N/A

Beta

1.18

Who are the company insiders with the largest holdings of Puma Biotechnology?

Puma Biotechnology's top insider shareholders include:
  1. Alan H Auerbach (CEO)
  2. Douglas M Hunt (Insider)
  3. Maximo F Nougues (CFO)
  4. Jeffrey Jerome Ludwig (Insider)
  5. Alvin F Wong (Insider)
  6. Brian M Stuglik (Director)
  7. Allison Dorval (Director)
  8. Alessandra Cesano (Director)
  9. Michael Patrick Miller (Director)
  10. Jay M Moyes (Director)
  11. Troy Edward Wilson (Director)
  12. Adrian Senderowicz (Director)
Learn More about top insider investors at Puma Biotechnology.

Who are the major institutional investors of Puma Biotechnology?

Puma Biotechnology's top institutional investors include:
  1. Vanguard Group Inc. — 7.33%
  2. Dimensional Fund Advisors LP — 2.53%
  3. Russell Investments Group Ltd. — 1.92%
  4. Kennedy Capital Management LLC — 1.72%
  5. LSV Asset Management — 1.11%
  6. Ritholtz Wealth Management — 0.93%
Learn More about top institutional investors of Puma Biotechnology stock.

Which major investors are selling Puma Biotechnology stock?

Within the last quarter, PBYI stock was sold by these institutional investors:
  1. Millennium Management LLC
  2. Two Sigma Investments LP
  3. Kennedy Capital Management LLC
  4. Mackenzie Financial Corp
  5. Strs Ohio
  6. Bank of America Corp DE
  7. Vanguard Group Inc.
  8. Hillsdale Investment Management Inc.
During the previous year, company insiders that have sold Puma Biotechnology company stock include:
  1. Alan H Auerbach (CEO)
  2. Douglas M Hunt (Insider)
  3. Maximo F Nougues (CFO)
  4. Jeffrey Jerome Ludwig (Insider)
  5. Alvin F Wong (Insider)
  6. Brian M Stuglik (Director)
  7. Allison Dorval (Director)
  8. Alessandra Cesano (Director)
  9. Michael Patrick Miller (Director)
  10. Jay M Moyes (Director)
Learn More investors selling Puma Biotechnology stock.

Which major investors are buying Puma Biotechnology stock?

During the previous quarter, PBYI stock was bought by institutional investors including:
  1. Russell Investments Group Ltd.
  2. Ritholtz Wealth Management
  3. Bridgeway Capital Management LLC
  4. Universal Beteiligungs und Servicegesellschaft mbH
  5. Franklin Resources Inc.
  6. Dimensional Fund Advisors LP
  7. First Trust Advisors LP
  8. UBS Group AG