Eton Pharmaceuticals Ownership | Who Owns Eton Pharmaceuticals?

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Eton Pharmaceuticals Ownership Summary

Eton Pharmaceuticals is owned by 52.53% institutional investors, 5.17% insiders, and 42.30% retail investors. Opaleye management is the largest institutional shareholder, holding 11.01% of ETON shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 2.62% of its assets in Eton Pharmaceuticals shares.

ETON Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Eton Pharmaceuticals	52.53%	5.17%	42.30%
Sector	Healthcare Stocks	279.19%	10.62%	-189.81%
Industry	Biotech Stocks	63.96%	10.74%	25.30%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Opaleye management	2.85M	11.01%	$37.99M
Ecor1 capital	1.83M	7.06%	$24.37M
Nantahala capital management	1.12M	4.32%	$14.90M
Vanguard group	1.06M	4.11%	$14.17M
Westside investment management	575.22K	2.22%	$7.66M
Cannell capital	381.32K	1.47%	$5.08M
Blackrock funding, inc. /de	317.63K	1.23%	$4.23M
Blackrock	282.39K	1.10%	$929.06K
Geode capital management	268.65K	1.04%	$3.58M
Acadian asset management	248.50K	0.96%	$3.31M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Opaleye management	2.85M	6.65%	$37.99M
Westside investment management	575.22K	1.61%	$7.66M
Cannell capital	381.32K	1.04%	$5.08M
Ecor1 capital	1.83M	0.92%	$24.37M
Aristides capital	241.59K	0.66%	$3.22M
Nantahala capital management	1.12M	0.64%	$14.90M
Eam investors	95.02K	0.18%	$1.27M
Bridgeway capital management	238.96K	0.07%	$3.18M
Essex investment management	24.44K	0.06%	$325.57K
Quantum private wealth	11.50K	0.05%	$153.18K

Top Buyers

Holder	Shares	% Assets	Change
Ecor1 capital	1.83M	0.92%	1.26M
Cannell capital	381.32K	1.04%	381.32K
Connor, clark & lunn investment management	214.88K	0.01%	149.86K
Acadian asset management	248.50K	0.01%	142.55K
Millennium management	138.89K	0.00%	138.89K

Top Sellers

Holder	Shares	% Assets	Change
Parkman healthcare partners	-	-	-276.89K
Wasatch advisors lp	-	-	-231.33K
Paradigm capital management inc/ny	-	-	-200.00K
Acuitas investments	-	-	-185.82K
Stonepine capital management	-	-	-110.00K

New Positions

Holder	Shares	% Assets	Change	Value
Cannell capital	381.32K	1.04%	381.32K	$5.08M
Millennium management	138.89K	0.00%	138.89K	$1.85M
Anchor capital advisors	60.43K	0.02%	60.43K	$804.95K
Barclays	54.89K	0.00%	54.89K	$731.00K
Two sigma advisers, lp	49.70K	0.00%	49.70K	$662.00K

Sold Out

Holder	Change
Lindbrook capital	-4.00
Advisor group	-260.00
Group one trading	-722.00
Plante moran financial advisors	-1.00K
Lazard asset management	-1.03K

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2025	89	20.27%	14,123,114	7.52%	52	2.04%	53	1.92%	24	71.43%
Dec 31, 2024	24	-52.94%	3,267,082	-65.64%	12	0.94%	14	-46.15%	6	-
Sep 30, 2024	51	8.51%	9,507,914	15.55%	36	3.60%	26	85.71%	6	-60.00%
Jun 30, 2024	47	4.44%	8,228,308	14.56%	31	4.09%	14	-	15	15.38%
Mar 31, 2024	45	-22.41%	7,182,688	0.34%	27	3.60%	14	-54.84%	13	30.00%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard Total Stock Mkt Idx Inv	701.50K	2.62%	19.79K
Vanguard US Total Market Shares ETF	681.72K	2.54%	-
Vanguard Institutional Extnd Mkt Idx Tr	389.04K	1.45%	1.64K
Paradigm Micro-Cap	200.00K	0.77%	-
Fidelity Extended Market Index	150.44K	0.56%	16.53K
Wasatch Micro Cap Value	105.10K	0.40%	-
Bridgeway Ultra-Small Company	106.07K	0.40%	-62.69K
EAM Ultra Micro Cap	95.02K	0.36%	-33.26K
Vifag 2002 SICAV	90.00K	0.35%	-
IMC US Ultra Micro Cap	84.78K	0.32%	-

Recent Insider Transactions

Date	Name	Role	Activity	Value
Jun 10, 2025	Opaleye Management Inc.	-	Buy	$46.36K
Jun 10, 2025	Opaleye Management Inc.	-	Buy	$79.12K
Jun 03, 2025	BRYNJELSEN SEAN	President & CEO	Sell	$7.61K
Jun 05, 2025	BRYNJELSEN SEAN	President & CEO	Sell	$1.18M
Jun 04, 2025	BRYNJELSEN SEAN	President & CEO	Sell	$1.19M

Insider Transactions Trends

Date	Buy	Sell
2025 Q2	2	5
2025 Q1	-	-
2024 Q4	7	-
2024 Q3	4	-
2024 Q1	-	-

ETON Ownership FAQ

Who Owns Eton Pharmaceuticals?

Eton Pharmaceuticals shareholders are primarily institutional investors at 52.53%, followed by 5.17% insiders and 42.30% retail investors. The average institutional ownership in Eton Pharmaceuticals's industry, Biotech Stocks , is 63.96%, which Eton Pharmaceuticals falls below.

Who owns the most shares of Eton Pharmaceuticals?

Eton Pharmaceuticals’s largest shareholders are Opaleye management (2.85M shares, 11.01%), Ecor1 capital (1.83M shares, 7.06%), and Nantahala capital management (1.12M shares, 4.32%). Together, they hold 22.39% of Eton Pharmaceuticals’s total shares outstanding.

Does Blackrock own Eton Pharmaceuticals?

Yes, BlackRock owns 1.10% of Eton Pharmaceuticals, totaling 282.39K shares as of Jun 2024. This represents 0% of BlackRock's total assets, with a market value of 929.06K$. In the last quarter, BlackRock decreased its holdings by -563 shares, a -0.20% change.

Who is Eton Pharmaceuticals’s biggest shareholder by percentage of total assets invested?

Opaleye management is Eton Pharmaceuticals’s biggest shareholder by percentage of total assets invested, with 6.65% of its assets in 2.85M Eton Pharmaceuticals shares, valued at 37.99M$.

Who is the top mutual fund holder of Eton Pharmaceuticals shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of Eton Pharmaceuticals shares, with 2.62% of its total shares outstanding invested in 701.5K Eton Pharmaceuticals shares.

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