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Disclosery

ETON ETON PHARMACEUTICALS INC

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COMMON STOCK (common), issuer CIK 1710340

86 managers (87 13F filers) reported a position in ETON shares at 2025-03-31, 14,615,226 shares in all. 26 filers opened a position and 11 filers sold out during the quarter.

Managers
86
13F filers
87
New
26
Added
29
Reduced
22
Sold out
11
Shares held by filers
14,615,226

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 2025

Filers in the available 13F reports with a share position at 2025-03-31, 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.2,852,070$37M8.24%013F-HRTimeline
EcoR1 Capital, LLC1,939,288$25.2M1.5%+109,68513F-HRTimeline
Nantahala Capital Management, LLCin group Nantahala Capital Management,…1,175,951$15.3M1.26%+57,46813F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC1,100,963$14.3M<0.01%+37,25613F-HRTimelineGroup
CANNELL CAPITAL LLC691,367$8.97M3.03%+310,04413F-HRTimeline
Westside Investment Management, Inc.493,650$6.41M1.36%-81,57213F-HRTimeline
National Philanthropic Trust492,112$6.39M0.1%013F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…448,804$5.83M0.01%+256,47813F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC402,428$5.22M0.01%+153,92313F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC355,929$4.62M<0.01%+217,04213F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.345,360$4.48M<0.01%+27,73513F-HRTimelineGroup
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP319,990$4.15M<0.01%new13F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC298,248$3.87M<0.01%+29,60213F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC274,000$3.56M0.01%+80,90013F-HRTimeline
Aristides Capital LLC241,587$3.14M1.16%013F-HRTimeline
Connor, Clark & Lunn Investment Managem…232,532$3.02M0.01%+17,65413F-HRTimeline
THOMPSON SIEGEL & WALMSLEY LLC189,863$2.46M0.04%+61,82413F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC175,220$2.27M<0.01%+45,34113F-HR/ATimelineGroup
PRELUDE CAPITAL MANAGEMENT, LLC169,436$2.2M0.22%+145,19413F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY147,332$1.91M<0.01%+134,13913F-HRTimelineGroup
Mink Brook Asset Management LLCin group Mink Brook Asset Management L…141,488$1.84M1.93%-314,31713F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding135,455$1.76M-26,703Timeline
BRIDGEWAY CAPITAL MANAGEMENT, LLC135,270$1.76M0.04%-103,69213F-HRTimeline
STATE STREET CORPin group STATE STREET CORP114,236$1.48M<0.01%+8,90013F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO113,113$1.47M<0.01%+61,15213F-HRTimelineGroup
Cubist Systematic Strategies, LLC103,200$1.34M0.02%+59,96113F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC95,919$1.25M<0.01%+31,59613F-HR/ATimelineGroup
UBS Group AGin group UBS Group AG95,748$1.24M<0.01%-39,60413F-HRTimelineGroup
Qube Research & Technologies Ltd86,848$1.13M<0.01%-7,33313F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP84,450$1.1M<0.01%-2,50713F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC78,213$1.02M<0.01%+67,17013F-HRTimelineGroup
Informed Momentum Co LLC77,833$1.01M0.17%-17,18613F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp74,246$964K<0.01%013F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC64,795$841K<0.01%new13F-HR/ATimelineGroup
ANCHOR CAPITAL ADVISORS LLC60,179$781K0.02%-25313F-HRTimeline
HRT FINANCIAL LP57,235$742K<0.01%new13F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC54,275$704K<0.01%new13F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management50,205$652K<0.01%+38,35513F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC44,661$580K<0.01%-10,22513F-HR/ATimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS39,317$510K<0.01%+38,96713F-HRTimelineGroup
OMERS ADMINISTRATION Corp35,300$458K<0.01%-2,60013F-HRTimeline
BLAIR WILLIAM & CO/IL34,900$453K<0.01%013F-HRTimeline
State of Wyoming26,443$343K0.05%new13F-HRTimeline
PDT Partners, LLC25,755$334K0.02%new13F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…25,283$328K<0.01%new13F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC24,492$318K<0.01%new13F-HRTimelineGroup
Schonfeld Strategic Advisors LLC24,213$314K<0.01%-65,45113F-HRTimeline
Man Group plcin group Man Group plc22,404$291K<0.01%new13F-HRTimelineGroup
Jain Global LLC22,401$291K0.01%new13F-HRTimeline
ESSEX INVESTMENT MANAGEMENT CO LLC20,419$265K0.06%-4,02313F-HRTimeline
Diametric Capital, LP19,597$254K0.3%new13F-HRTimeline
Hillsdale Investment Management Inc.18,983$246K0.01%+1,98013F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC17,316$225K<0.01%-42413F-HRTimelineGroup
ExodusPoint Capital Management, LP17,102$222K<0.01%new13F-HRTimeline
CHICAGO TRUST Co NA16,700$217K0.04%013F-HRTimeline
Quantessence Capital LLC16,590$215K0.05%new13F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC16,303$212K<0.01%-8,40713F-HR/ATimelineGroup
State of Tennessee, Department of Treas…13,950$181K<0.01%new13F-HRTimeline
LMR Partners LLPin group LMR Partners LLP13,574$176K<0.01%new13F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd13,400$174K0.01%new13F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co13,247$172K<0.01%+813F-HR/ATimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/12,440$161K<0.01%+1,34013F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd11,797$153K0.01%-2,85813F-HRTimelineGroup
Quantum Private Wealth, LLC11,500$149K0.06%013F-HRTimeline
Cannon Global Investment Management, LLC11,400$148K0.41%new13F-HRTimeline
Point72 Asia (Singapore) Pte. Ltd.10,795$140K0.04%+23413F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…10,693$139K<0.01%new13F-HRTimelineGroup
Verition Fund Management LLC10,189$132K<0.01%new13F-HRTimeline
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.10,000$130K<0.01%013F-HRTimelineGroup
Quantbot Technologies LP7,794$101K<0.01%new13F-HRTimeline
Steward Partners Investment Advisory, L…7,499$97.3K<0.01%new13F-HRTimeline
SIMPLEX TRADING, LLC4,472$58K<0.01%-31,90413F-HRTimeline
AlphaQuest LLC4,118$53.5K0.01%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…2,971$38.6K<0.01%-3,46213F-HRTimelineGroup
Point72 (DIFC) Ltd1,800$23.4K<0.01%+35913F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA1,629$22K<0.01%+87713F-HR/ATimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.1,500$19.5K<0.01%new13F-HR/ATimelineGroup
Truvestments Capital LLC1,183$15.4K<0.01%013F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN750$9.73K<0.01%-25013F-HRTimelineGroup
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.686$8.9K<0.01%-70613F-HRTimelineGroup
GROUP ONE TRADING LLC634$8.23K<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.100$1.3K<0.01%-4113F-HRTimeline
Caitong International Asset Management …77$999<0.01%new13F-HRTimeline
FMR LLCin group FMR LLC10$130<0.01%new13F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC1$13<0.01%-21,97613F-HRTimelineGroup
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$0013F-HRTimelineValue filed as zero, left out of ratios. Amount 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