Eton Pharmaceuticals Ownership | Who Owns Eton Pharmaceuticals?


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Eton Pharmaceuticals Ownership Summary


Eton Pharmaceuticals is owned by 33.14% institutional investors, 4.48% insiders, and 62.38% retail investors. Opaleye management is the largest institutional shareholder, holding 10.63% 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


TypeName% Inst% Insiders% Retail
StockEton Pharmaceuticals33.14%4.48%62.38%
SectorHealthcare Stocks 232.80%10.63%-143.43%
IndustryBiotech Stocks 379.48%10.37%-289.85%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Opaleye management2.86M10.63%$70.58M
Ecor1 capital2.17M8.07%$53.60M
Blackrock funding, inc. /de1.72M6.38%$42.38M
Vanguard group1.35M5.01%$22.81M
Nantahala capital management1.18M4.37%$29.02M
Geode capital management577.67K2.15%$14.26M
State street530.22K1.97%$13.09M
Morgan stanley477.96K1.78%$11.80M
Westside investment management467.92K1.74%$11.55M
Oberweis asset management inc/439.30K1.63%$10.84M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Opaleye management2.86M9.30%$70.58M
Cannell capital341.99K5.18%$8.44M
Panoramic capital185.00K3.21%$4.57M
Ecor1 capital2.17M2.27%$53.60M
Westside investment management467.92K1.77%$11.55M
Lumbard & kellner175.91K1.50%$4.34M
Nantahala capital management1.18M1.07%$29.02M
Diametric capital, lp156.93K1.01%$3.87M
Aristides capital186.04K0.99%$4.59M
Apis capital advisors117.60K0.56%$2.56M

Top Buyers

HolderShares% AssetsChange
Panoramic capital185.00K3.21%185.00K
Soleus capital management166.38K0.17%166.38K
Vanguard fiduciary trust164.72K0.00%164.72K
Prelude capital management188.80K0.36%143.48K
Ecor1 capital2.17M2.27%141.39K

Top Sellers

HolderShares% AssetsChange
Parkman healthcare partners---276.89K
Wasatch advisors lp---231.33K
Paradigm capital management inc/ny---200.00K
Divisadero street capital management, lp298.00K0.28%-199.72K
Acuitas investments---185.82K

New Positions

HolderShares% AssetsChangeValue
Panoramic capital185.00K3.21%185.00K$4.57M
Vanguard fiduciary trust164.72K0.00%164.72K$4.07M
Marshall wace, llp82.72K0.00%82.72K$2.04M
Walleye capital81.96K0.01%81.96K$2.02M
Sei investments58.03K0.00%58.03K$1.43M

Sold Out

HolderChange
Lindbrook capital-4.00
Srs capital advisors-6.00
Allworth financial lp-7.00
Daiwa securities group-89.00
Vermillion & white wealth management group-150.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Dec 31, 202562-40.38%8,912,362-49.64%330.77%30-45.45%22-18.52%
Sep 30, 20259818.07%17,454,5999.66%641.85%51-12.07%2758.82%
Jun 30, 202586-1.15%16,537,10735.73%612.99%6115.09%17-26.09%
Mar 31, 20258920.27%14,123,1147.52%522.04%531.92%2471.43%
Dec 31, 202424-52.94%3,267,082-65.64%120.94%14-46.15%6-

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Vanguard Total Stock Mkt Idx Inv715.02K2.62%-
Vanguard US Total Market Shares ETF681.72K2.54%-
iShares Russell 2000 ETF603.14K2.20%5.08K
Oberweis Micro-Cap420.90K1.56%228.54K
Oberweis Micro-Cap Growth420.90K1.54%-
Vanguard Institutional Extnd Mkt Idx Tr258.32K0.95%3.52K
Fidelity Small Cap Index250.59K0.92%2.43K
Paradigm Micro-Cap200.00K0.77%-
iShares Russell 2000 Growth ETF208.22K0.76%536.00
Russell 2000 Equity Index Fund B166.85K0.61%-81.00

Recent Insider Transactions


DateNameRoleActivityValue
Aug 20, 2025Gruber James R. Chief Financial OfficerSell$42.15K
Aug 19, 2025Gruber James R. Chief Financial OfficerSell$631.57K
Jun 12, 2025Krempa David Chief Business OfficerSell$253.30K
Jun 13, 2025Krempa David Chief Business OfficerSell$100.44K
Jun 16, 2025Krempa David Chief Business OfficerSell$150.58K

Insider Transactions Trends


DateBuySell
2026 Q2--
2026 Q1--
2025 Q4--
2025 Q3-2
2025 Q228

ETON Ownership FAQ


Who Owns Eton Pharmaceuticals?

Eton Pharmaceuticals shareholders are primarily institutional investors at 33.14%, followed by 4.48% insiders and 62.38% retail investors. The average institutional ownership in Eton Pharmaceuticals's industry, Biotech Stocks , is 379.48%, which Eton Pharmaceuticals falls below.

Who owns the most shares of Eton Pharmaceuticals?

Eton Pharmaceuticals’s largest shareholders are Opaleye management (2.86M shares, 10.63%), Ecor1 capital (2.17M shares, 8.07%), and Blackrock funding, inc. /de (1.72M shares, 6.38%). Together, they hold 25.08% of Eton Pharmaceuticals’s total shares outstanding.

Does Blackrock own Eton Pharmaceuticals?

BlackRock is not among the top 10 institutional shareholders of Eton Pharmaceuticals.

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 9.30% of its assets in 2.86M Eton Pharmaceuticals shares, valued at 70.58M$.

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 715.02K Eton Pharmaceuticals shares.

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