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Eton Pharmaceuticals, Inc.

ETON
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001710340

In the last 90 days, Eton Pharmaceuticals, Inc. insiders filed 0 open-market purchases and 5 sales; 164 institutions reported holding it in 13F filings for Q2 2026, worth $722.6M in total; no superinvestor holds it.

13F holders, Q3 2021

Institutional positions in Eton Pharmaceuticals, Inc. as of Sep 30, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
37
−9 vs. Q2 2021
Shares held
5.96M
−878.8K (−12.8%) vs. Q2 2021
Total value
$29.5M
−$18.6M (−38.6%) vs. Q2 2021
New holders
8
10 more added
Sold out
17
10 more reduced

Compare with Q2 2021: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ETON on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2021: 37 institutions
Q1 2021: 50 institutionsQ2 2021: 46 institutionsQ3 2021: 37 institutionsQ4 2021: 32 institutionsQ1 2022: 31 institutionsQ2 2022: 29 institutionsQ3 2022: 32 institutionsQ4 2022: 31 institutionsQ1 2023: 35 institutionsQ2 2023: 33 institutionsQ3 2023: 50 institutionsQ4 2023: 56 institutionsQ1 2024: 44 institutionsQ2 2024: 45 institutionsQ3 2024: 48 institutionsQ4 2024: 71 institutionsQ1 2025: 86 institutionsQ2 2025: 87 institutionsQ3 2025: 103 institutionsQ4 2025: 104 institutionsQ1 2026: 116 institutionsQ2 2026: 164 institutions
Value heldQ3 2021: $29.5M
Q1 2021: $63.7MQ2 2021: $48.1MQ3 2021: $29.5MQ4 2021: $24.1MQ1 2022: $27.4MQ2 2022: $14.6MQ3 2022: $14.4MQ4 2022: $18.2MQ1 2023: $22.5MQ2 2023: $20.9MQ3 2023: $28.8MQ4 2023: $33.5MQ1 2024: $28.8MQ2 2024: $28.7MQ3 2024: $60.0MQ4 2024: $181.5MQ1 2025: $189.7MQ2 2025: $243.3MQ3 2025: $394.7MQ4 2025: $277.5MQ1 2026: $438.6MQ2 2026: $722.6M
Institutions holding ETON and their total value by quarter
QuarterHoldersValue
Q2 2026164$722.6M
Q1 2026116$438.6M
Q4 2025104$277.5M
Q3 2025103$394.7M
Q2 202587$243.3M
Q1 202586$189.7M
Q4 202471$181.5M
Q3 202448$60.0M
Q2 202445$28.7M
Q1 202444$28.8M
Q4 202356$33.5M
Q3 202350$28.8M
Q2 202333$20.9M
Q1 202335$22.5M
Q4 202231$18.2M
Q3 202232$14.4M
Q2 202229$14.6M
Q1 202231$27.4M
Q4 202132$24.1M
Q3 202137$29.5M
Q2 202146$48.1M
Q1 202150$63.7M

Institutions, Q3 2021

Shares, value and share of portfolio for each institution holding Eton Pharmaceuticals, Inc.; share changes are against Q2 2021.

Institutions holding ETON in Q3 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Opaleye Management Inc.3,088,100$15.6M2.91%−604,500−16.4%Reduced
Vanguard Group Inc866,465$4.37M0.00%+4,925+0.6%Added
AWM Investment Company, Inc.500,000$2.52M0.25%00.0%Unchanged
BlackRock Inc.300,897$1.52M0.00%−161−0.1%Reduced
Geode Capital Management, LLC157,116$791.0K0.00%+1,835+1.2%Added
Susquehanna International Group, LLP117,493$592.0K0.00%+117,493New
Bridgeway Capital Management, LLC100,500$507.0K0.01%+25,500+34.0%Added
State Street Corp83,772$422.0K0.00%00.0%Unchanged
Gsa Capital Partners LLP82,314$415.0K0.04%+24,917+43.4%Added
Bank of New York Mellon Corp79,725$401.0K0.00%+66,450+500.6%Added
Citadel Advisors LLC63,146$318.0K0.00%+5,271+9.1%Added
Blair William & Co44,000$222.0K0.00%00.0%Unchanged
HRT Financial LP39,012$196.0K0.00%−11,057−22.1%Reduced
Morgan Stanley34,749$175.0K0.00%+33,159+2,085.5%Added
Bank of America Corp30,913$156.0K0.00%+12,016+63.6%Added
Susquehanna Fundamental Investments, LLC30,844$155.0K0.00%+30,844New
Northern Trust Corp30,355$153.0K0.00%00.0%Unchanged
Price T Rowe Associates Inc24,206$122.0K0.00%−193,576−88.9%Reduced
HighVista Strategies LLC21,517$109.0K0.07%+10,884+102.4%Added
Belvedere Trading LLC20,829$107.0K0.03%+20,829New
Millennium Management LLC21,110$106.0K0.00%−113,818−84.4%Reduced
Goldman Sachs Group Inc20,446$103.0K0.00%+20,446New
Two Sigma Investments, LP18,070$91.0K0.00%+18,070New
Chicago Trust Co NA16,700$84.0K0.02%+16,700New
XTX Topco Ltd14,652$74.0K0.02%−40−0.3%Reduced
Group One Trading, L.P.14,044$71.0K0.00%+14,044New
MML Investors Services, LLC11,500$58.0K0.00%00.0%Unchanged
Financial Advisors Network, Inc.10,633$53.0K0.01%00.0%Unchanged
Simplex Trading, LLC5,236$32.0K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)4,382$22.0K0.00%+4,382New
Barclays PLC2,137$11.0K0.00%−1,853−46.4%Reduced
Royal Bank of Canada1,000$5.00K0.00%−2,113−67.9%Reduced
Plante Moran Financial Advisors, LLC1,000$5.00K0.00%00.0%Unchanged
BNP Paribas Arbitrage, SA765$3.86K0.00%−868−53.2%Reduced
Wells Fargo & Company123$1.00K0.00%−316−72.0%Reduced
Lindbrook Capital, LLC4$00.00%00.0%Unchanged
Westside Investment Management, Inc.105,300––+3,500+3.4%Added
Marshall Wace, LLP0$00.00%−84,912−100.0%Sold out
Parametric Portfolio Associates LLC0$00.00%−78,542−100.0%Sold out
Tibra Equities Europe Ltd0$00.00%−51,800−100.0%Sold out
Ergoteles LLC0$00.00%−50,500−100.0%Sold out
Russell Investments Group, Ltd.0$00.00%−36,079−100.0%Sold out
Pinz Capital Management, LP0$00.00%−19,100−100.0%Sold out
Silverarc Capital Management, LLC0$00.00%−18,691−100.0%Sold out
Westwood Holdings Group Inc.0$00.00%−18,320−100.0%Sold out
Jane Street Group, LLC0$00.00%−11,837−100.0%Sold out
UBS Group AG0$00.00%−5,363−100.0%Sold out
Advisory Services Network, LLC0$00.00%−4,000−100.0%Sold out
The PNC Financial Services Group, Inc.0$00.00%−1,072−100.0%Sold out
Citigroup Inc0$00.00%−810−100.0%Sold out
JPMorgan Chase & Co0$00.00%−153−100.0%Sold out
New York State Common Retirement Fund0$00.00%−135−100.0%Sold out
Captrust Financial Advisors0$00.00%−243−100.0%Sold out
Berman Capital Advisors, LLC0$00.00%−229−100.0%Sold out