NASDAQ: PBYI
Puma Biotechnology Inc Stock Ownership - Who owns Puma Biotechnology?

Insider buying vs selling

Have Puma Biotechnology Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Douglas M. HuntOfficer2026-01-075,014$5.88
$29.48kSell
Alan H. AuerbachPresident and CEO2026-01-0718,012$5.88
$105.89kSell
Maximo F. NouguesChief Financial Officer2026-01-076,405$5.88
$37.65kSell
Maximo F. NouguesChief Financial Officer2026-01-064,540$5.84
$26.53kSell
Alan H. AuerbachPresident and CEO2026-01-0616,938$5.84
$98.99kSell
Douglas M. HuntOfficer2026-01-063,973$5.84
$23.22kSell
Michael Patrick MillerDirector2025-11-1120,000$4.86
$97.22kSell
Alessandra CesanoDirector2025-07-1827,000$3.37
$90.91kSell
Alan H. AuerbachPresident and CEO2025-07-0921,580$3.54
$76.29kSell
Douglas M. HuntOfficer2025-07-093,443$3.54
$12.17kSell

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Net Insider Buy/Sell (L12M) Ownership

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PBYI Shareholders

What type of owners hold Puma Biotechnology Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Adage Capital Partners GP LLC17.62%8,879,139$60.64MInsider
Alan H. Auerbach14.50%7,305,729$49.90MInsider
Acorn Capital Advisors LLC8.20%4,131,299$28.22MInstitution
Vanguard Group Inc7.54%3,797,748$25.94MInstitution
Blackrock Inc7.23%3,642,588$24.88MInstitution
Adage Capital Partners LP6.35%3,200,000$21.86MInsider
Renaissance Technologies LLC4.21%2,123,813$14.51MInstitution
Acadian Asset Management LLC4.02%2,024,823$13.83MInstitution
American Century Companies Inc3.27%1,650,137$11.27MInstitution
Dimensional Fund Advisors LP2.66%1,339,603$9.15MInstitution

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PBYI vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
PBYI61.74%38.26%Net SellingNet Selling
AURA79.11%14.67%Net SellingNet Selling
VNDA50.05%49.95%Net Selling
HELP60.30%0.00%
KYTX53.70%46.30%Net BuyingNet Buying

Puma Biotechnology Stock Ownership FAQ

Who owns Puma Biotechnology?

Puma Biotechnology (NASDAQ: PBYI) is owned by 70.14% institutional shareholders, 43.47% Puma Biotechnology insiders, and 0.00% retail investors. Adage Capital Partners GP LLC is the largest individual Puma Biotechnology shareholder, owning 8.88M shares representing 17.62% of the company. Adage Capital Partners GP LLC's Puma Biotechnology shares are currently valued at $60.64M.

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