Puma Bio Ownership | Who Owns Puma Bio?

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Puma Bio Ownership Summary

Puma Bio is owned by 34.08% institutional investors, 15.39% insiders, and 50.54% retail investors. Acorn capital advisors is the largest institutional shareholder, holding 8.31% of PBYI shares. Avantis US Small Cap Value ETF is the top mutual fund, with 3.20% of its assets in Puma Bio shares.

PBYI Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Puma Bio	34.08%	15.39%	50.54%
Sector	Healthcare Stocks	232.01%	10.74%	-142.75%
Industry	Biotech Stocks	381.47%	10.55%	-292.02%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Acorn capital advisors	4.13M	8.31%	$21.94M
Vanguard group	3.80M	7.54%	$22.60M
Blackrock	3.57M	7.41%	$11.65M
Blackrock funding, inc. /de	3.64M	7.24%	$21.67M
Frazier life sciences management	3.06M	6.36%	$9.98M
Renaissance	2.12M	4.22%	$12.64M
Acadian asset management	2.02M	4.02%	$12.04M
American century companies	1.48M	2.98%	$7.88M
Millennium management	1.39M	2.79%	$4.10M
Dimensional fund advisors lp	1.34M	2.66%	$7.97M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Athyrium capital management, lp	1.26M	12.21%	$4.10M
Acorn capital advisors	4.13M	11.14%	$21.94M
Frazier life sciences management	3.06M	0.47%	$9.98M
Globeflex capital l p	452.61K	0.41%	$2.69M
Haven private	92.08K	0.24%	$547.89K
Virtus etf advisers	47.17K	0.16%	$250.48K
C2c wealth management	23.02K	0.12%	$136.97K
Kennedy capital management	867.63K	0.10%	$4.61M
Round rock advisors	105.04K	0.09%	$569.97K
Entrypoint capital	35.39K	0.08%	$210.56K

Top Buyers

Holder	Shares	% Assets	Change
Blackrock	3.57M	0.00%	1.96M
Russell investments group	964.69K	0.01%	964.67K
Goldman sachs group	793.96K	0.00%	559.35K
O'shaughnessy asset management	1.12M	0.04%	292.11K
Frazier life sciences management	3.06M	0.47%	246.26K

Top Sellers

Holder	Shares	% Assets	Change
Camber capital management lp	-	-	-1.65M
Great point partners	-	-	-1.49M
Marshall wace, llp	-	-	-557.55K
Millennium management	1.39M	0.00%	-508.93K
Affinity asset advisors	-	-	-250.00K

New Positions

Holder	Shares	% Assets	Change	Value
Wellington management group llp	149.55K	0.00%	149.55K	$794.12K
First trust advisors lp	119.78K	0.00%	119.78K	$636.03K
Haven private	92.08K	0.24%	92.08K	$547.89K
State of wisconsin investment board	54.32K	0.00%	54.32K	$288.43K
Vise	40.30K	0.00%	40.30K	$239.77K

Sold Out

Holder	Change
Concord wealth partners	-6.00
Capital performance advisors llp	-15.00
Richards, merrill & peterson	-40.00
Southstate	-111.00
Atlantic union bankshares	-150.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2025	79	-42.34%	17,154,333	-50.16%	34	0.71%	42	-44.00%	16	-52.94%
Sep 30, 2025	66	-42.61%	15,017,679	-51.48%	30	0.78%	27	-54.24%	21	-34.38%
Jun 30, 2025	123	4.24%	32,779,375	7.78%	65	1.75%	63	-10.00%	34	36.00%
Mar 31, 2025	4	-96.46%	5,660,761	-80.62%	11	0.32%	-	-100.00%	3	-85.00%
Dec 31, 2024	35	-66.35%	13,117,113	-55.90%	26	0.73%	19	-64.15%	7	-70.83%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Avantis US Small Cap Value ETF	1.61M	3.20%	4.62K
Vanguard Total Stock Mkt Idx Inv	1.34M	2.67%	-
Vanguard US Total Market Shares ETF	1.27M	2.56%	-
iShares Russell 2000 ETF	1.06M	2.10%	1.06M
Vanguard Explorer Inv	777.39K	1.54%	-
Vanguard Strategic Equity Inv	540.43K	1.07%	-
Kennedy Micro Cap	506.29K	1.00%	-3.18K
Fidelity Small Cap Index	426.72K	0.85%	-507.00
Vanguard Institutional Extnd Mkt Idx Tr	410.93K	0.82%	-
iShares Russell 2000 Value ETF	377.49K	0.75%	377.49K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Jan 06, 2026	AUERBACH ALAN H	President and CEO	Sell	$98.99K
Jan 07, 2026	AUERBACH ALAN H	President and CEO	Sell	$105.89K
Jan 07, 2026	HUNT DOUGLAS M	See Remarks	Sell	$29.48K
Jan 06, 2026	HUNT DOUGLAS M	See Remarks	Sell	$23.22K
Jan 06, 2026	NOUGUES MAXIMO F	Chief Financial Officer	Sell	$26.53K

Insider Transactions Trends

Date	Buy	Sell
2026 Q1	-	6
2025 Q4	-	1
2025 Q3	-	7
2025 Q2	-	6
2025 Q1	-	4

PBYI Ownership FAQ

Who Owns Puma Bio?

Puma Bio shareholders are primarily institutional investors at 34.08%, followed by 15.39% insiders and 50.53% retail investors. The average institutional ownership in Puma Bio's industry, Biotech Stocks , is 381.47%, which Puma Bio falls below.

Who owns the most shares of Puma Bio?

Puma Bio’s largest shareholders are Acorn capital advisors (4.13M shares, 8.31%), Vanguard group (3.8M shares, 7.54%), and Blackrock (3.57M shares, 7.41%). Together, they hold 23.27% of Puma Bio’s total shares outstanding.

Does Blackrock own Puma Bio?

Yes, BlackRock owns 7.41% of Puma Bio, totaling 3.57M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 11.65M$. In the last quarter, BlackRock increased its holdings by 1.96M shares, a 120.88% change.

Who is Puma Bio’s biggest shareholder by percentage of total assets invested?

Athyrium capital management, lp is Puma Bio’s biggest shareholder by percentage of total assets invested, with 12.21% of its assets in 1.26M Puma Bio shares, valued at 4.1M$.

Who is the top mutual fund holder of Puma Bio shares?

Avantis US Small Cap Value ETF is the top mutual fund holder of Puma Bio shares, with 3.20% of its total shares outstanding invested in 1.61M Puma Bio shares.

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