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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, Q1 2026

Institutional positions in Eton Pharmaceuticals, Inc. as of Mar 31, 2026. 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
116
+13 vs. Q4 2025
Shares held
17.8M
+2.73M (+18.1%) vs. Q4 2025
Total value
$438.6M
+$183.9M (+72.2%) vs. Q4 2025
New holders
30
36 more added
Sold out
17
32 more reduced

1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: 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 holdersQ1 2026: 116 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 heldQ1 2026: $438.6M
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, Q1 2026

Shares, value and share of portfolio for each institution holding Eton Pharmaceuticals, Inc.; share changes are against Q4 2025.

Institutions holding ETON in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Royal Bank of Canada13$00.00%−1,005−98.7%Reduced
Keating Financial Advisory Services, Inc.1$250.00%+1New
US Bancorp19$4690.00%−35−64.8%Reduced
GAMMA Investing LLC21$5180.00%−2−8.7%Reduced
Caitong International Asset Management Co., Ltd24$5920.00%−2,915−99.2%Reduced
Hughes Financial Services, LLC26$6420.00%+25+2,500.0%Added
EverSource Wealth Advisors, LLC38$9380.00%+38New
Twin Peaks Wealth Advisors, LLC38$9380.00%+38New
Covestor Ltd28$1.00K0.00%+28New
Investors Portfolio Services LLC34$1.04K0.00%+34New
Advisory Services Network, LLC50$1.23K0.00%+50New
CWM, LLC107$2.64K0.00%+81+311.5%Added
Farther Finance Advisors, LLC123$3.12K0.00%−23−15.8%Reduced
Sterling Capital Management LLC167$4.12K0.00%00.0%Unchanged
The PNC Financial Services Group, Inc.179$4.42K0.00%+128+251.0%Added
Advisor Group Holdings, Inc.200$4.94K0.00%00.0%Unchanged
SBI Securities Co., Ltd.263$6.49K0.00%+253+2,530.0%Added
Parallel Advisors, LLC303$7.48K0.00%+303New
Jones Financial Companies LLLP350$8.13K0.00%+129+58.4%Added
UBS Asset Management Americas Inc368$9.08K0.00%+368New
GF Fund Management Co. Ltd.597$14.7K0.00%+70+13.3%Added
Tower Research Capital LLC (TRC)1,156$28.5K0.00%−1,838−61.4%Reduced
Truvestments Capital LLC1,183$29.2K0.01%00.0%Unchanged
California State Teachers Retirement System1,388$34.3K0.00%−190−12.0%Reduced
Mirae Asset Global Investments Co., Ltd.1,399$34.5K0.00%+96+7.4%Added
FMR LLC1,519$37.5K0.00%−1,557−50.6%Reduced
Ameritas Investment Partners, Inc.2,167$53.5K0.00%00.0%Unchanged
Legal & General Group Plc2,330$57.5K0.00%−401−14.7%Reduced
Citigroup Inc2,548$62.9K0.00%+1,097+75.6%Added
Russell Investments Group, Ltd.2,670$65.9K0.00%−47,024−94.6%Reduced
China Universal Asset Management Co., Ltd.4,759$117.5K0.01%+389+8.9%Added
State of Alaska, Department of Revenue6,943$171.0K0.00%00.0%Unchanged
Police & Firemen's Retirement System of New Jersey7,209$177.9K0.00%00.0%Unchanged
Northwestern Mutual Wealth Management Co7,500$185.1K0.00%−2,500−25.0%Reduced
Quantbot Technologies LP7,787$192.2K0.01%−1,570−16.8%Reduced
New York State Common Retirement Fund8,100$199.9K0.00%00.0%Unchanged
Jain Global LLC8,287$204.5K0.00%+8,287New
Granite Investment Partners, LLC8,479$209.3K0.01%+8,479New
Vanguard Global Advisers, LLC8,991$221.9K0.00%+8,991New
State of Wyoming9,498$234.4K0.03%+1,337+16.4%Added
Wells Fargo & Company9,559$235.9K0.00%−18,734−66.2%Reduced
Los Angeles Capital Management LLC10,269$253.4K0.00%−4,362−29.8%Reduced
Envestnet Asset Management Inc10,739$265.0K0.00%−205−1.9%Reduced
Quantum Private Wealth, LLC11,500$283.8K0.09%00.0%Unchanged
American Century Companies Inc11,926$294.3K0.00%+11,926New
Mirae Asset Global ETFs Holdings Ltd.12,038$297.1K0.00%+174+1.5%Added
Aquatic Capital Management LLC12,061$297.7K0.01%−10,741−47.1%Reduced
Raymond James Financial Inc12,250$302.3K0.00%00.0%Unchanged
Voleon Capital Management LP13,290$328.0K0.01%−2,292−14.7%Reduced
Bank of Nova Scotia15,000$365.3K0.00%+15,000New
PDT Partners, LLC14,891$367.5K0.02%00.0%Unchanged
Millennium Management LLC14,939$368.7K0.00%−64,392−81.2%Reduced
MetLife Investment Management15,537$383.5K0.00%00.0%Unchanged
Chicago Trust Co NA16,700$412.2K0.07%00.0%Unchanged
Price T Rowe Associates Inc17,652$436.0K0.00%+2,283+14.9%Added
HighTower Advisors, LLC18,423$454.7K0.00%+18,423New
State of Wisconsin Investment Board18,644$460.1K0.00%−5,971−24.3%Reduced
Juncture Wealth Strategies, LLC19,181$473.4K0.16%+185+1.0%Added
Essex Investment Management Co LLC20,182$498.1K0.08%00.0%Unchanged
Deutsche Bank AG21,136$521.6K0.00%+2,887+15.8%Added
Bridge City Capital, LLC21,150$522.0K0.14%+2,550+13.7%Added
Brevan Howard Capital Management LP22,506$555.4K0.01%+22,506New
Invesco Ltd.22,874$564.5K0.00%+3,183+16.2%Added
Guilbault Capital LLC23,225$573.2K0.63%00.0%Unchanged
Polen Capital Management LLC30,138$743.8K0.01%+30,138New
Rhumbline Advisers30,726$758.3K0.00%+290+1.0%Added
Blair William & Co32,400$799.6K0.00%00.0%Unchanged
Susquehanna International Group, LLP34,084$841.2K0.00%+34,084New
Numerai GP LLC37,356$921.9K0.09%+37,356New
Manatuck Hill Partners, LLC40,000$987.2K0.32%+40,000New
Anchor Capital Advisors LLC40,858$1.01M0.03%+190+0.5%Added
Connor, Clark & Lunn Investment Management Ltd.42,693$1.05M0.00%−33,893−44.3%Reduced
EAM Investors, LLC48,623$1.20M0.14%+48,623New
Barclays PLC49,374$1.22M0.00%−2,074−4.0%Reduced
XTX Topco Ltd51,772$1.28M0.02%+19,245+59.2%Added
Boothbay Fund Management, LLC55,605$1.37M0.03%+55,605New
Nuveen, LLC57,950$1.43M0.00%−967−1.6%Reduced
SEI Investments Co58,034$1.43M0.00%+58,034New
Charles Schwab Investment Management Inc68,795$1.70M0.00%−8,417−10.9%Reduced
Wellington Management Group LLP70,124$1.73M0.00%−11,077−13.6%Reduced
Walleye Capital LLC81,963$2.02M0.01%+81,963New
Marshall Wace, LLP82,721$2.04M0.00%+82,721New
Jane Street Group, LLC95,420$2.35M0.00%+37,364+64.4%Added
Two Sigma Investments, LP106,393$2.63M0.00%+29,791+38.9%Added
Citadel Advisors LLC107,815$2.66M0.00%+33,671+45.4%Added
Bank of New York Mellon Corp111,255$2.75M0.00%−16,445−12.9%Reduced
Bank of America Corp144,367$3.56M0.00%+39,571+37.8%Added
Vanguard Portfolio Management LLC151,748$3.75M0.00%+151,748New
JPMorgan Chase & Co169,876$3.84M0.00%−15,563−8.4%Reduced
Diametric Capital, LP156,926$3.87M1.01%−36,229−18.8%Reduced
Renaissance Technologies LLC163,321$4.03M0.01%−42,379−20.6%Reduced
Vanguard Fiduciary Trust Co164,715$4.07M0.00%+164,715New
Soleus Capital Management, L.P.166,381$4.11M0.17%+166,381New
UBS Group AG168,958$4.17M0.00%+42,284+33.4%Added
Woodline Partners LP170,699$4.21M0.02%+75,212+78.8%Added
Lumbard & Kellner, LLC175,911$4.34M1.50%+967+0.6%Added
Panoramic Capital, LLC185,000$4.57M3.21%+185,000New
Aristides Capital LLC186,041$4.59M1.52%+24,605+15.2%Added
Prelude Capital Management, LLC188,802$4.66M0.36%+143,477+316.6%Added
Goldman Sachs Group Inc217,446$5.37M0.00%+21,183+10.8%Added