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NASDAQ: ETON
Eton Pharmaceuticals Inc Stock Ownership - Who owns Eton Pharmaceuticals?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Eton Pharmaceuticals Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Norbert G. RiedelDirector2026-04-2119,655$8.61
$169.23kBuy
Norbert G. RiedelDirector2026-04-2112,500$7.31
$91.38kBuy
Norbert G. RiedelDirector2026-02-0330,000$4.42
$132.60kBuy
James R. GruberChief Financial Officer2026-01-142,293$15.47
$35.47kSell
David KrempaChief Business Officer2026-01-141,942$15.62
$30.33kSell
Sean BrynjelsenPresident CEO2026-01-015,015$15.39
$77.18kSell
James R. GruberChief Financial Officer2025-12-124,542$16.99
$77.17kSell
Ipek ErdogantrinkausChief Commercial Officer2025-12-1285$16.90
$1.44kSell
David KrempaChief Business Officer2025-12-126,264$17.00
$106.49kSell
Sean BrynjelsenPresident CEO2025-12-126,732$16.83
$113.30kSell

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Net Insider Buy/Sell (L12M) Ownership

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ETON Shareholders

What type of owners hold Eton Pharmaceuticals Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Opaleye Management Inc10.76%2,937,070$84.88MInsider
Sean Brynjelsen10.68%2,914,206$84.22MInsider
Opaleye Management Inc10.48%2,860,000$82.65MInstitution
Ecor1 Capital LLC7.44%2,030,544$58.68MInstitution
Harrow Health Inc7.26%1,982,000$57.28MInsider
Blackrock Inc6.37%1,738,907$50.25MInstitution
Vanguard Group Inc4.94%1,348,668$38.98MInstitution
Nantahala Capital Management LLC4.31%1,175,951$33.98MInstitution
David Krempa2.31%630,238$18.21MInsider
Geode Capital Management LLC2.07%565,051$16.33MInstitution

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ETON vs Pharmaceutical Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ETON58.24%32.97%Net SellingNet Buying
ESPR58.90%16.57%Net SellingNet Selling
BIOA53.01%22.30%Net SellingNet Buying
IRWD72.40%27.60%Net SellingNet Selling
TLRY9.64%17.41%Net BuyingNet Selling
View Top Pharmaceutical Stocks

Eton Pharmaceuticals Stock Ownership FAQ

Who owns Eton Pharmaceuticals?

Eton Pharmaceuticals (NASDAQ: ETON) is owned by 58.24% institutional shareholders, 32.97% Eton Pharmaceuticals insiders, and 8.79% retail investors. Opaleye Management Inc is the largest individual Eton Pharmaceuticals shareholder, owning 2.94M shares representing 10.76% of the company. Opaleye Management Inc's Eton Pharmaceuticals shares are currently valued at $84.88M.

If you're new to stock investing, here's how to buy Eton Pharmaceuticals stock.
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