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Disclosery

ETON ETON PHARMACEUTICALS INC

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COMMON STOCK (common), issuer CIK 1710340

111 managers (116 13F filers) reported a position in ETON shares at 2026-03-31, 17,784,221 shares in all. 26 filers opened a position and 17 filers sold out during the quarter.

Managers
111
13F filers
116
New
26
Added
36
Reduced
32
Sold out
17
Shares held by filers
17,784,221

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

The latest Form 4 transactions, non-derivative.
OwnerDateSharesPriceFiling
Krempa Davidofficer (Chief Business Officer)2026-10-06-4,166 S$55.0663Form 4
Krempa Davidofficer (Chief Business Officer)2026-10-02+10,522 MForm 4

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Opaleye Management Inc.2,860,000$70.6M9.3%013F-HRTimeline
EcoR1 Capital, LLC2,171,938$53.6M2.29%+141,39413F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.1,717,286$42.4M<0.01%-21,62113F-HRTimelineGroup
VANGUARD GROUP INCgroup of 4 filers holding1,319,543$32.6MnewTimeline
Nantahala Capital Management, LLCin group Nantahala Capital Management,…1,175,951$29M1.81%013F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC577,666$14.3M<0.01%+12,61513F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP530,215$13.1M<0.01%+28,29013F-HRTimelineGroup
National Philanthropic Trust492,112$12.1M0.13%013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY477,957$11.8M<0.01%-15,95713F-HRTimelineGroup
Westside Investment Management, Inc.467,915$11.5M1.77%-3,02513F-HRTimeline
OBERWEIS ASSET MANAGEMENT INC/439,300$10.8M0.32%+8,00013F-HRTimeline
THOMPSON SIEGEL & WALMSLEY LLC406,089$10M0.18%-2,45213F-HRTimeline
Pillsbury Lake Capital LLC364,954$9.01M4.08%new13F-HRTimeline
CANNELL CAPITAL LLC341,985$8.44M5.48%+125,06813F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS302,108$7.46M<0.01%+24,65013F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP237,832$5.87M<0.01%+5,98313F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC217,446$5.37M<0.01%+21,18313F-HRTimelineGroup
PRELUDE CAPITAL MANAGEMENT, LLC188,802$4.66M0.36%+143,47713F-HRTimeline
Aristides Capital LLC186,041$4.59M1.52%+24,60513F-HRTimeline
Panoramic Capital, LLC185,000$4.57M3.21%new13F-HRTimeline
Lumbard & Kellner, LLC175,911$4.34M1.5%+96713F-HRTimeline
Woodline Partners LP170,699$4.21M0.02%+75,21213F-HR/ATimeline
UBS Group AGgroup of 2 filers holding169,326$4.18M+42,652Timeline
Soleus Capital Management, L.P.166,381$4.11M0.17%new13F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC163,321$4.03M0.01%-42,37913F-HRTimeline
Diametric Capital, LP156,926$3.87M1.01%-36,22913F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO169,876$3.84M<0.01%-15,56313F-HR/ATimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/144,367$3.56M<0.01%+39,57113F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp111,255$2.75M<0.01%-16,44513F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC107,815$2.66M<0.01%+33,67113F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP106,393$2.63M<0.01%+29,79113F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC95,420$2.35M<0.01%+37,36413F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP82,721$2.04M<0.01%new13F-HRTimelineGroup
Walleye Capital LLCin group Walleye Capital LLC81,963$2.02M0.01%new13F-HR/ATimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…70,124$1.73M<0.01%-11,07713F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co68,795$1.7M<0.01%-8,41713F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO58,034$1.43M<0.01%new13F-HRTimelineGroup
Nuveen, LLCin group TIAA57,950$1.43M<0.01%-96713F-HRTimelineGroup
BOOTHBAY FUND MANAGEMENT, LLC55,605$1.37M0.03%new13F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd51,772$1.28M0.02%+19,24513F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC49,374$1.22M<0.01%-2,07413F-HRTimelineGroup
Informed Momentum Co LLC48,623$1.2M0.14%new13F-HRTimeline
Connor, Clark & Lunn Investment Managem…42,693$1.05M<0.01%-33,89313F-HRTimeline
ANCHOR CAPITAL ADVISORS LLC40,858$1.01M0.03%+19013F-HRTimeline
Manatuck Hill Partners, LLC40,000$987K0.32%new13F-HRTimeline
Numerai GP LLC37,356$922K0.09%new13F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…34,084$841K<0.01%new13F-HRTimelineGroup
BLAIR WILLIAM & CO/IL32,400$800K<0.01%013F-HRTimeline
RHUMBLINE ADVISERS30,726$758K<0.01%+29013F-HRTimeline
POLEN CAPITAL MANAGEMENT LLC30,138$744K0.01%new13F-HRTimeline
Guilbault Capital LLC23,225$573K0.63%013F-HRTimeline
Invesco Ltd.in group Invesco Ltd.22,874$565K<0.01%+3,18313F-HRTimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…22,506$555K0.01%new13F-HRTimelineGroup
Bridge City Capital, LLC21,150$522K0.14%+2,55013F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\21,136$522K<0.01%+2,88713F-HRTimelineGroup
ESSEX INVESTMENT MANAGEMENT CO LLC20,182$498K0.08%013F-HRTimeline
JUNCTURE WEALTH STRATEGIES, LLC19,181$473K0.16%+18513F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD18,644$460K<0.01%-5,97113F-HRTimeline
HighTower Advisors, LLC18,423$455K<0.01%new13F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/17,652$436K<0.01%+2,28313F-HRTimeline
CHICAGO TRUST Co NA16,700$412K0.07%013F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…15,537$383K<0.01%013F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC14,939$369K<0.01%-64,39213F-HRTimelineGroup
PDT Partners, LLC14,891$368K0.02%013F-HRTimeline
BANK OF NOVA SCOTIAin group BANK OF NOVA SCOTIA15,000$365K<0.01%new13F-HRTimelineGroup
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding13,437$332K+270Timeline
Voleon Capital Management LP13,290$328K0.01%-2,29213F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC12,250$302K<0.01%013F-HRTimelineGroup
Aquatic Capital Management LLC12,061$298K0.01%-10,74113F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC11,926$294K<0.01%new13F-HRTimelineGroup
Quantum Private Wealth, LLC11,500$284K0.09%013F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC10,739$265K<0.01%-20513F-HRTimelineGroup
LOS ANGELES CAPITAL MANAGEMENT LLC10,269$253K<0.01%-4,36213F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN9,559$236K<0.01%-18,73413F-HR/ATimelineGroup
State of Wyoming9,498$234K0.03%+1,33713F-HRTimeline
Granite Investment Partners, LLC8,479$209K0.01%new13F-HRTimeline
Jain Global LLC8,287$205K<0.01%new13F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND8,100$200K<0.01%013F-HRTimeline
Quantbot Technologies LP7,787$192K0.01%-1,57013F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…7,500$185K<0.01%-2,50013F-HRTimelineGroup
Police & Firemen's Retirement System of…7,209$178K<0.01%013F-HRTimeline
State of Alaska, Department of Revenue6,943$171K<0.01%013F-HRTimeline
China Universal Asset Management Co., L…4,759$117K0.01%+38913F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…2,670$65.9K<0.01%-47,02413F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC2,548$62.9K<0.01%+1,09713F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc2,330$57.5K<0.01%-40113F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…2,167$53.5K<0.01%013F-HRTimelineGroup
FMR LLCin group FMR LLC1,519$37.5K<0.01%-1,55713F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…1,388$34.3K<0.01%-19013F-HRTimeline
Truvestments Capital LLC1,183$29.2K0.01%013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,156$28.5K<0.01%-1,83813F-HRTimelineGroup
GF FUND MANAGEMENT CO. LTD.597$14.7K<0.01%+7013F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP350$8.13K<0.01%+12913F-HRTimelineGroup
Parallel Advisors, LLC303$7.48K<0.01%new13F-HR/ATimeline
SBI Securities Co., Ltd.263$6.49K<0.01%+25313F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.200$4.94K<0.01%013F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…179$4.42K<0.01%+12813F-HRTimelineGroup
Sterling Capital Management LLC167$4.12K<0.01%013F-HRTimeline
Farther Finance Advisors, LLC123$3.12K<0.01%-2313F-HRTimeline
CWM, LLCin group CWM, LLC107$2.64K<0.01%+8113F-HRTimelineGroup
Advisory Services Network, LLC50$1.23K<0.01%new13F-HRTimeline
Investors Portfolio Services LLC34$1.04K<0.01%new13F-HRTimeline
Covestor Ltd28$1K<0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…38$938<0.01%new13F-HR/ATimelineGroup
TWIN PEAKS WEALTH ADVISORS, LLC38$938<0.01%new13F-HRTimeline
Hughes Financial Services, LLC26$642<0.01%+2513F-HRTimeline
Caitong International Asset Management …24$592<0.01%-2,91513F-HRTimeline
GAMMA Investing LLC21$518<0.01%-213F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\19$469<0.01%-3513F-HRTimelineGroup
Keating Financial Advisory Services, In…1$25<0.01%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA13$00%-1,00513F-HRTimelineGroupValue filed as zero, left out of ratios.

Events

  • Krempa David acquired 6,356 ETON shares between 2026-10-02 and 2026-10-06, Form 4 filed 2026-10-06. 0001437749-26-032240

    Accepted , ingested