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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, Q2 2021

Institutional positions in Eton Pharmaceuticals, Inc. as of Jun 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
46
−4 vs. Q1 2021
Shares held
6.84M
−1.94M (−22.1%) vs. Q1 2021
Total value
$48.1M
−$15.6M (−24.5%) vs. Q1 2021
New holders
17
6 more added
Sold out
21
17 more reduced

Compare with Q1 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 holdersQ2 2021: 46 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 heldQ2 2021: $48.1M
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, Q2 2021

Shares, value and share of portfolio for each institution holding Eton Pharmaceuticals, Inc.; share changes are against Q1 2021.

Institutions holding ETON in Q2 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Opaleye Management Inc.3,692,600$29.3M4.87%−347,400−8.6%Reduced
Vanguard Group Inc861,540$5.31M0.00%+150,681+21.2%Added
AWM Investment Company, Inc.500,000$3.08M0.30%−398,878−44.4%Reduced
BlackRock Inc.301,058$1.85M0.00%−785,208−72.3%Reduced
Price T Rowe Associates Inc217,782$1.34M0.00%+217,782New
Geode Capital Management, LLC155,281$956.0K0.00%−110,264−41.5%Reduced
Millennium Management LLC134,928$831.0K0.00%+134,928New
Marshall Wace, LLP84,912$523.0K0.00%+84,912New
State Street Corp83,772$516.0K0.00%−182,523−68.5%Reduced
Parametric Portfolio Associates LLC78,542$484.0K0.00%−5,325−6.3%Reduced
Bridgeway Capital Management, LLC75,000$462.0K0.01%00.0%Unchanged
Citadel Advisors LLC57,875$357.0K0.00%+57,875New
Gsa Capital Partners LLP57,397$354.0K0.04%+17,333+43.3%Added
Tibra Equities Europe Ltd51,800$319.0K0.10%+51,800New
Ergoteles LLC50,500$311.0K0.01%+50,500New
HRT Financial LP50,069$308.0K0.00%+50,069New
Blair William & Co44,000$271.0K0.00%+44,000New
Russell Investments Group, Ltd.36,079$222.0K0.00%00.0%Unchanged
Northern Trust Corp30,355$187.0K0.00%−147,603−82.9%Reduced
Pinz Capital Management, LP19,100$118.0K0.04%+19,100New
Bank of America Corp18,897$116.0K0.00%−13,234−41.2%Reduced
Silverarc Capital Management, LLC18,691$115.0K0.06%+18,691New
Westwood Holdings Group Inc.18,320$113.0K0.00%+18,320New
XTX Topco Ltd14,692$91.0K0.03%+14,692New
Bank of New York Mellon Corp13,275$82.0K0.00%−32,112−70.8%Reduced
Jane Street Group, LLC11,837$73.0K0.00%+11,837New
MML Investors Services, LLC11,500$71.0K0.00%00.0%Unchanged
HighVista Strategies LLC10,633$65.0K0.05%+10,633New
Financial Advisors Network, Inc.10,633$65.0K0.02%+10,633New
UBS Group AG5,363$33.0K0.00%+871+19.4%Added
Simplex Trading, LLC5,236$32.0K0.00%+4,136+376.0%Added
Barclays PLC3,990$25.0K0.00%−10,288−72.1%Reduced
Advisory Services Network, LLC4,000$25.0K0.00%+4,000New
Royal Bank of Canada3,113$19.0K0.00%−57,308−94.8%Reduced
BNP Paribas Arbitrage, SA1,633$10.1K0.00%−526−24.4%Reduced
Morgan Stanley1,590$10.0K0.00%−644−28.8%Reduced
The PNC Financial Services Group, Inc.1,072$7.00K0.00%+673+168.7%Added
Plante Moran Financial Advisors, LLC1,000$6.00K0.00%00.0%Unchanged
Citigroup Inc810$5.00K0.00%−932−53.5%Reduced
Wells Fargo & Company439$3.00K0.00%−15,912−97.3%Reduced
New York State Common Retirement Fund135$1.00K0.00%−8,865−98.5%Reduced
JPMorgan Chase & Co153$1.00K0.00%−6,251−97.6%Reduced
Captrust Financial Advisors243$1.00K0.00%00.0%Unchanged
Berman Capital Advisors, LLC229$1.00K0.00%00.0%Unchanged
Lindbrook Capital, LLC4$00.00%+4New
Westside Investment Management, Inc.101,800––+15,275+17.7%Added
Sio Capital Management, LLC0$00.00%−162,659−100.0%Sold out
Two Sigma Investments, LP0$00.00%−139,989−100.0%Sold out
Creative Planning0$00.00%−85,300−100.0%Sold out
SEI Investments Co0$00.00%−73,800−100.0%Sold out
Hood River Capital Management LLC0$00.00%−73,800−100.0%Sold out
Diametric Capital, LP0$00.00%−49,536−100.0%Sold out
Charles Schwab Investment Management Inc0$00.00%−41,409−100.0%Sold out
Nuveen Asset Management, LLC0$00.00%−37,204−100.0%Sold out
Two Sigma Advisers, LP0$00.00%−36,900−100.0%Sold out
Prelude Capital Management, LLC0$00.00%−30,905−100.0%Sold out
California State Teachers Retirement System0$00.00%−25,829−100.0%Sold out
Deutsche Bank AG0$00.00%−11,872−100.0%Sold out
ExodusPoint Capital Management, LP0$00.00%−11,100−100.0%Sold out
Rhumbline Advisers0$00.00%−10,340−100.0%Sold out
American International Group, Inc.0$00.00%−9,953−100.0%Sold out
Tower Research Capital LLC (TRC)0$00.00%−2,764−100.0%Sold out
Legal & General Group Plc0$00.00%−1,838−100.0%Sold out
Mesirow Financial Investment Management, Inc.0$00.00%−1,829−100.0%Sold out
Ameritas Investment Partners, Inc.0$00.00%−1,302−100.0%Sold out
Bank of Montreal0$00.00%−591−100.0%Sold out
Quadrant Capital Group LLC0$00.00%−52−100.0%Sold out