Eton Pharmaceuticals, Inc. - ETON

Detailed investor-level table based on 13F positions.
Early Q1 2026 data: only 5 institutional holders reported so far. The full shareholder list will grow as more funds file with the SEC.

Shareholders (13F)

Quarter: Q4 2025 · Compare: Q3 2025
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
Opaleye Management Inc. History No change 2,860,000 48,362 6.38% 8.79% 1 0 0.0% Q4 2025 Apr 13, 2026
EcoR1 Capital, LLC History No change 2,030,544 34,336 1.56% 2.12% 2 0 0.0% Q4 2025 Feb 17, 2026
BlackRock, Inc. History Added to 1,738,907 29,404 0.0% 0.0% 3 +34,546 2.03% Q4 2025 Feb 12, 2026
VANGUARD GROUP INC History Added to 1,348,668 22,805 0.0% 0.0% 4 +4,553 0.34% Q4 2025 Jan 29, 2026
Nantahala Capital Management, LLC History No change 1,175,951 19,885 0.66% 0.89% 5 0 0.0% Q4 2025 Feb 13, 2026
GEODE CAPITAL MANAGEMENT, LLC History Reduced 565,051 9,557 0.0% 0.0% 6 -8,979 -1.56% Q4 2025 Feb 09, 2026
STATE STREET CORP History Added to 501,925 8,487 0.0% 0.0% 7 +63,480 14.48% Q4 2025 Feb 13, 2026
MORGAN STANLEY History Reduced 493,914 8,352 0.0% 0.0% 8 -92,132 -15.72% Q4 2025 Feb 13, 2026
Westside Investment Management, Inc. History Reduced 470,940 7,963 1.27% 1.64% 9 -1,600 -0.34% Q4 2025 Jan 23, 2026
OBERWEIS ASSET MANAGEMENT INC/ History Added to 431,300 7,293 0.27% 0.16% 10 +238,940 124.22% Q4 2025 Feb 17, 2026
THOMPSON SIEGEL & WALMSLEY LLC History Reduced 408,541 6,908 0.12% 0.15% 11 -10,025 -2.4% Q4 2025 Feb 10, 2026
BNP PARIBAS FINANCIAL MARKETS History Added to 277,458 4,691 0.0% 0.0% 12 +47,668 20.74% Q4 2025 Feb 10, 2026
NORTHERN TRUST CORP History Reduced 231,849 3,920 0.0% 0.0% 13 -13,202 -5.39% Q4 2025 Feb 17, 2026
CANNELL CAPITAL LLC History Reduced 216,917 3,668 1.78% 1.51% 14 -238,488 -52.37% Q4 2025 Feb 17, 2026
RENAISSANCE TECHNOLOGIES LLC History Reduced 205,700 3,478 0.01% 0.01% 15 -118,921 -36.63% Q4 2025 Feb 12, 2026
GOLDMAN SACHS GROUP INC History Added to 196,263 3,318 0.0% 0.0% 16 +6,099 3.21% Q4 2025 Mar 25, 2026
Diametric Capital, LP History Added to 193,155 3,266 0.88% 0.8% 17 +93,846 94.5% Q4 2025 Feb 13, 2026
JPMORGAN CHASE & CO History Reduced 185,439 3,135 0.0% 0.0% 18 -165,978 -47.23% Q4 2025 Feb 11, 2026
Lumbard & Kellner, LLC History Reduced 174,944 2,958 1.04% 1.41% 19 -1,356 -0.77% Q4 2025 Feb 03, 2026
Aristides Capital LLC History Reduced 161,436 2,729 0.48% 0.53% 20 -6,151 -3.67% Q4 2025 Feb 26, 2026
Bank of New York Mellon Corp History Reduced 127,700 2,159 0.0% 0.0% 21 -1,482 -1.15% Q4 2025 Feb 10, 2026
UBS Group AG History Reduced 126,674 2,142 0.0% 0.0% 22 -93,687 -42.52% Q4 2025 Jan 29, 2026
Jefferies Financial Group Inc. History Added to 118,300 2,000 0.01% 0.01% 23 +29,860 33.76% Q4 2025 Feb 09, 2026
BANK OF AMERICA CORP /DE/ History Added to 104,796 1,772 0.0% 0.0% 24 +30,139 40.37% Q4 2025 Feb 17, 2026
Woodline Partners LP History New 95,487 1,614 0.01% 25 +95,487 New Q4 2025 Feb 17, 2026
CITADEL ADVISORS LLC History Added to 85,044 1,438 0.0% 0.0% 26 +75,044 750.44% Q4 2025 Feb 17, 2026
JANE STREET GROUP, LLC History Added to 84,456 1,428 0.0% 0.0% 27 +13,512 19.05% Q4 2025 Feb 12, 2026
BRIDGEWAY CAPITAL MANAGEMENT, LLC History Reduced 84,020 1,420 0.03% 0.05% 28 -25,000 -22.93% Q4 2025 Feb 17, 2026
WELLINGTON MANAGEMENT GROUP LLP History Reduced 81,201 1,373 0.0% 0.0% 29 -7,018 -7.96% Q4 2025 Feb 17, 2026
MILLENNIUM MANAGEMENT LLC History Added to 79,331 1,341 0.0% 0.0% 30 +63,469 400.13% Q4 2025 Feb 17, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC History Reduced 77,212 1,305 0.0% 0.0% 31 -62 -0.08% Q4 2025 Feb 13, 2026
TWO SIGMA INVESTMENTS, LP History Reduced 76,602 1,295 0.0% 0.01% 32 -209,819 -73.26% Q4 2025 Feb 17, 2026
Connor, Clark & Lunn Investment Management Ltd. History Reduced 76,586 1,295 0.0% 0.01% 33 -67,225 -46.75% Q4 2025 Feb 10, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Reduced 62,400 1,055 0.0% 0.0% 34 -60,356 -49.17% Q4 2025 Feb 17, 2026
Nuveen, LLC History No change 58,917 996 0.0% 0.0% 35 0 0.0% Q4 2025 Feb 12, 2026
BARCLAYS PLC History Added to 51,448 869 0.0% 0.0% 36 +14,642 39.78% Q4 2025 Feb 13, 2026
Russell Investments Group, Ltd. History Reduced 49,694 840 0.0% 0.0% 37 -5,171 -9.42% Q4 2025 Feb 17, 2026
PRELUDE CAPITAL MANAGEMENT, LLC History Added to 45,325 766 0.06% 0.07% 38 +3,452 8.24% Q4 2025 Feb 17, 2026
ANCHOR CAPITAL ADVISORS LLC History Added to 40,668 687 0.02% 0.02% 39 +3,890 10.58% Q4 2025 Feb 10, 2026
XTX Topco Ltd History Added to 32,527 550 0.01% 0.03% 40 +8,128 33.31% Q4 2025 Feb 17, 2026
BLAIR WILLIAM & CO/IL History No change 32,400 547 0.0% 0.0% 41 0 0.0% Q4 2025 Feb 17, 2026
RHUMBLINE ADVISERS History Reduced 30,436 514 0.0% 0.0% 42 -5,688 -15.75% Q4 2025 Feb 13, 2026
WELLS FARGO & COMPANY/MN History Added to 28,293 478 0.0% 0.0% 43 +11,584 69.33% Q4 2025 Feb 13, 2026
STATE OF WISCONSIN INVESTMENT BOARD History New 24,615 416 0.0% 44 +24,615 New Q4 2025 Feb 17, 2026
Aquatic Capital Management LLC History Reduced 22,802 385 0.01% 0.01% 45 -13,530 -37.24% Q4 2025 Feb 17, 2026
ESSEX INVESTMENT MANAGEMENT CO LLC History No change 20,182 341 0.05% 0.07% 46 0 0.0% Q4 2025 Feb 13, 2026
Invesco Ltd. History Added to 19,691 332 0.0% 0.0% 47 +6,213 46.1% Q4 2025 Feb 19, 2026
JUNCTURE WEALTH STRATEGIES, LLC History Added to 18,996 321 0.11% 0.12% 48 +2,028 11.95% Q4 2025 Jan 27, 2026
Bridge City Capital, LLC History Added to 18,600 314 0.09% 0.1% 49 +1,927 11.56% Q4 2025 Feb 13, 2026
DEUTSCHE BANK AG\ History Added to 18,249 308 0.0% 0.0% 50 +850 4.89% Q4 2025 Feb 11, 2026
CHICAGO TRUST Co NA History No change 16,700 282 0.04% 0.05% 51 0 0.0% Q4 2025 Feb 17, 2026
LOS ANGELES CAPITAL MANAGEMENT LLC History New 14,631 267 0.0% 52 +14,631 New Q4 2025 Feb 11, 2026
Voleon Capital Management LP History Added to 15,582 263 0.01% 0.01% 53 +4,632 42.3% Q4 2025 Feb 17, 2026
MetLife Investment Management, LLC History No change 15,537 262 0.0% 0.0% 54 0 0.0% Q4 2025 Feb 12, 2026
PRICE T ROWE ASSOCIATES INC /MD/ History Added to 15,369 260 0.0% 0.0% 55 +1,845 13.64% Q4 2025 Feb 17, 2026
D. E. Shaw & Co., Inc. History New 15,331 259 0.0% 56 +15,331 New Q4 2025 Feb 17, 2026
PDT Partners, LLC History No change 14,891 251 0.02% 0.02% 57 0 0.0% Q4 2025 Feb 17, 2026
TWO SIGMA ADVISERS, LP History Reduced 14,700 248 0.0% 0.01% 58 -154,200 -91.3% Q4 2025 Feb 17, 2026
Squarepoint Ops LLC History Reduced 13,482 227 0.0% 0.0% 59 -46,163 -77.4% Q4 2025 Feb 13, 2026
Point72 Asset Management, L.P. History New 12,925 218 0.0% 60 +12,925 New Q4 2025 Feb 17, 2026
CANADA PENSION PLAN INVESTMENT BOARD History New 12,500 211 0.0% 61 +12,500 New Q4 2025 Feb 17, 2026
INTECH INVESTMENT MANAGEMENT LLC History Added to 12,421 210 0.0% 0.0% 62 +1,244 11.13% Q4 2025 Feb 10, 2026
RAYMOND JAMES FINANCIAL INC History Reduced 12,250 207 0.0% 0.0% 63 -74,832 -85.93% Q4 2025 Feb 18, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. History Reduced 11,864 200 0.0% 0.0% 64 -143 -1.19% Q4 2025 Feb 17, 2026
Quantum Private Wealth, LLC History No change 11,500 194 0.06% 0.07% 65 0 0.0% Q4 2025 Feb 06, 2026
ENVESTNET ASSET MANAGEMENT INC History Reduced 10,944 185 0.0% 0.0% 66 -433 -3.81% Q4 2025 Feb 10, 2026
Jump Financial, LLC History New 10,551 178 0.0% 67 +10,551 New Q4 2025 Feb 17, 2026
Man Group plc History Reduced 10,473 177 0.0% 0.0% 68 -2,176 -17.2% Q4 2025 Feb 17, 2026
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO History No change 10,000 169 0.0% 0.0% 69 0 0.0% Q4 2025 Feb 10, 2026
Quantbot Technologies LP History Reduced 9,357 158 0.01% 0.01% 70 -2,175 -18.86% Q4 2025 Feb 10, 2026
State of Wyoming History Added to 8,161 138 0.02% 0.01% 71 +2,721 50.02% Q4 2025 Feb 11, 2026
NEW YORK STATE COMMON RETIREMENT FUND History No change 8,100 136 0.0% 0.0% 72 0 0.0% Q4 2025 Feb 12, 2026
Police & Firemen's Retirement System of New Jersey History No change 7,209 121 0.0% 0.0% 73 0 0.0% Q4 2025 Feb 13, 2026
State of Alaska, Department of Revenue History Added to 6,943 117 0.0% 0.0% 74 +5,522 388.6% Q4 2025 Jan 23, 2026
SG Americas Securities, LLC History New 6,471 109 0.0% 75 +6,471 New Q4 2025 Jan 09, 2026
Caitong International Asset Management Co., Ltd History New 5,878 99 0.02% 76 +5,878 New Q4 2025 Mar 03, 2026
China Universal Asset Management Co., Ltd. History New 4,370 73 0.01% 77 +4,370 New Q4 2025 Jan 29, 2026
AlphaQuest LLC History Reduced 4,149 70 0.0% 0.01% 78 -1 -0.02% Q4 2025 Feb 09, 2026
FMR LLC History Reduced 3,076 52 0.0% 0.0% 79 -2,618 -45.98% Q4 2025 Feb 17, 2026
Tower Research Capital LLC (TRC) History Added to 2,994 50 0.0% 0.0% 80 +2,023 208.34% Q4 2025 Feb 17, 2026
Legal & General Group Plc History Reduced 2,731 46 0.0% 0.0% 81 -121 -4.24% Q4 2025 Feb 09, 2026
Ameritas Investment Partners, Inc. History No change 2,167 36 0.0% 0.0% 82 0 0.0% Q4 2025 Feb 11, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM History Reduced 1,578 26 0.0% 0.0% 83 -23 -1.44% Q4 2025 Feb 17, 2026
CITIGROUP INC History Added to 1,451 24 0.0% 0.0% 84 +240 19.82% Q4 2025 Feb 13, 2026
Mirae Asset Global Investments Co., Ltd. History New 1,303 22 0.0% 85 +1,303 New Q4 2025 Jan 26, 2026
Truvestments Capital LLC History No change 1,183 20 0.0% 0.0% 86 0 0.0% Q4 2025 Feb 13, 2026
ROYAL BANK OF CANADA History New 1,018 17 0.0% 87 +1,018 New Q4 2025 Feb 17, 2026
AMALGAMATED BANK History Reduced 805 14 0.0% 0.0% 88 -71 -8.11% Q4 2025 Feb 05, 2026
GF FUND MANAGEMENT CO. LTD. History New 527 8 0.0% 90 +527 New Q4 2025 Jan 27, 2026
GROUP ONE TRADING LLC History Reduced 500 8 0.0% 0.0% 89 -262 -34.38% Q4 2025 Feb 12, 2026
JONES FINANCIAL COMPANIES LLLP History New 221 3 0.0% 91 +221 New Q4 2025 Feb 17, 2026
OSAIC HOLDINGS, INC. History No change 200 3 0.0% 0.0% 92 0 0.0% Q4 2025 Feb 17, 2026
Farther Finance Advisors, LLC History New 146 2 0.0% 96 +146 New Q4 2025 Jan 23, 2026
Sterling Capital Management LLC History Added to 167 2 0.0% 0.0% 93 +105 169.35% Q4 2025 Feb 13, 2026
Daiwa Securities Group Inc. History New 89 2 0.0% 94 +89 New Q4 2025 Feb 11, 2026
Vermillion & White Wealth Management Group, LLC History No change 150 2 0.0% 0.0% 95 0 0.0% Q4 2025 Feb 18, 2026
Divisadero Street Capital Management, LP History Closed out 0 0 0.28% -298,000 -100.0% Q3 2025 Nov 14, 2025
Soleus Capital Management, L.P. History Closed out 0 0 0.22% -200,000 -100.0% Q3 2025 Nov 14, 2025
APIS CAPITAL ADVISORS, LLC History Closed out 0 0 0.56% -117,600 -100.0% Q3 2025 Nov 14, 2025
Informed Momentum Co LLC History Closed out 0 0 0.13% -52,897 -100.0% Q3 2025 Nov 14, 2025
WINTON GROUP Ltd History Closed out 0 0 0.03% -35,304 -100.0% Q3 2025 Nov 13, 2025
ACADIAN ASSET MANAGEMENT LLC History Closed out 0 0 0.0% -26,410 -100.0% Q3 2025 Nov 13, 2025
Calamos Advisors LLC History Closed out 0 0 0.0% -23,634 -100.0% Q3 2025 Oct 20, 2025
Hillsdale Investment Management Inc. History Closed out 0 0 0.01% -18,503 -100.0% Q3 2025 Nov 10, 2025
NAVELLIER & ASSOCIATES INC History Closed out 0 0 0.04% -17,494 -100.0% Q3 2025 Nov 06, 2025
GSA CAPITAL PARTNERS LLP History Closed out 0 0 0.03% -14,785 -100.0% Q3 2025 Nov 07, 2025
PharVision Advisers, LLC History Closed out 0 0 0.13% -10,535 -100.0% Q3 2025 Nov 17, 2025
ALLIANCEBERNSTEIN L.P. History Closed out 0 0 0.0% -9,600 -100.0% Q3 2025 Nov 14, 2025
EntryPoint Capital, LLC History Closed out 0 0 0.08% -9,365 -100.0% Q3 2025 Nov 13, 2025
Quarry LP History Closed out 0 0 0.01% -1,700 -100.0% Q3 2025 Nov 14, 2025
COMERICA BANK History Closed out 0 0 0.0% -219 -100.0% Q3 2025 Nov 14, 2025
SBI Securities Co., Ltd. History Reduced 10 0 0.0% -118 -92.19% Q4 2025 Feb 03, 2026
US BANCORP \DE\ History New 54 0 +54 New Q4 2025 Jan 30, 2026
Advisory Services Network, LLC History Closed out 0 0 0.0% -50 -100.0% Q3 2025 Nov 18, 2025
PNC FINANCIAL SERVICES GROUP, INC. History Added to 51 0 +34 200.0% Q4 2025 Feb 06, 2026
GAMMA Investing LLC History New 23 0 +23 New Q4 2025 Jan 05, 2026
Allworth Financial LP History New 7 0 +7 New Q4 2025 Feb 05, 2026
Arax Advisory Partners History Closed out 0 0 -6 -100.0% Q3 2025 Nov 14, 2025
CWM, LLC History Reduced 26 0 0.0% -5 -16.13% Q4 2025 Jan 26, 2026
Hughes Financial Services, LLC History New 1 0 +1 New Q4 2025 Feb 11, 2026