ETON PHARMACEUTICALS INC (ETON)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
161
Reporting holders
$764.2M
Reported value
73.0%
Of shares outstanding
1.2%
Held as options
+47
Holder change
Institutions report 20,866,754 shares against 28,583,135 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Opaleye Management Inc. | $103.5M | 2,860,000 | 9.38% | 31q | HELD |
| Nantahala Capital Management, LLC | $85.1M | 2,351,902 | 1.41% | 9q | +100.0%+$42.6M |
| EcoR1 Capital, LLC | $78.6M | 2,171,938 | 3.82% | 8q | HELD |
| BlackRock, Inc. | $68.6M | 1,895,833 | 0.00% | 8q | +10.4%+$6.5M |
| VANGUARD CAPITAL MANAGEMENT LLC | $35.4M | 976,570 | 0.00% | 2q | -1.8%-$634.2K |
| MORGAN STANLEY | $27.8M | 767,972 | 0.00% | 29q | +60.7%+$10.5M |
| STATE STREET CORP | $25.4M | 701,786 | 0.00% | 25q | +32.4%+$6.2M |
| GEODE CAPITAL MANAGEMENT, LLC | $23.6M | 652,303 | 0.00% | 25q | +12.9%+$2.7M |
| OBERWEIS ASSET MANAGEMENT INC/ | $18.2M | 501,600 | 0.38% | 4q | +14.2%+$2.3M |
| National Philanthropic Trust | $17.8M | 492,112 | 0.26% | 10q | HELD |
| Westside Investment Management, Inc. | $15.6M | 431,160 | 2.05% | 26q | -7.9%-$1.3M |
| Pillsbury Lake Capital LLC | $14.0M | 387,157 | 3.83% | 2q | +6.1%+$803.7K |
| Nuveen, LLC | $13.6M | 375,707 | 0.00% | 5q | +548.3%+$11.5M |
| BNP PARIBAS FINANCIAL MARKETS | $11.7M | 322,466 | 0.00% | 25q | +6.7%+$737.0K |
| Woodline Partners LP | $11.3M | 310,879 | 0.03% | 3q | +82.1%+$5.1M |
| NORTHERN TRUST CORP | $9.3M | 255,849 | 0.00% | 28q | +7.6%+$652.2K |
| MARSHALL WACE, LLP | $9.0M | 249,182 | 0.01% | 2q | +201.2%+$6.0M |
| JANE STREET GROUP, LLC | $8.0M | 185,697 | 0.00% | 4q | +94.6%+$3.9M |
| Panoramic Capital, LLC | $7.5M | 208,192 | 3.24% | 2q | +12.5%+$839.6K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $7.0M | 194,591 | 0.00% | 2q | +28.2%+$1.6M |
| JPMORGAN CHASE & CO | $7.0M | 191,635 | 0.00% | 8q | +12.8%+$799.2K |
| D. E. Shaw & Co., Inc. | $6.8M | 188,452 | 0.00% | new | NEW |
| Lumbard & Kellner, LLC | $6.4M | 175,909 | 1.93% | 4q | HELD |
| CANNELL CAPITAL LLC | $6.2M | 170,747 | 4.14% | 7q | -50.1%-$6.2M |
| NORGES BANK | $6.1M | 169,500 | 0.00% | new | NEW |
| VANGUARD FIDUCIARY TRUST CO | $6.1M | 168,539 | 0.00% | 2q | +2.3%+$138.4K |
| Informed Momentum Co LLC | $5.7M | 158,045 | 0.51% | 2q | +225.0%+$4.0M |
| Prospect Capital Advisors, LLC | $5.7M | 157,200 | 2.58% | new | NEW |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $5.3M | 14,505 | 0.00% | 12q | -57.4%-$7.2M |
| Aristides Capital LLC | $5.3M | 145,410 | 1.02% | 9q | -21.8%-$1.5M |
| BANK OF AMERICA CORP /DE/ | $5.1M | 142,257 | 0.00% | 9q | -1.5%-$76.4K |
| PRELUDE CAPITAL MANAGEMENT, LLC | $5.0M | 137,572 | 0.36% | 7q | -27.1%-$1.9M |
| GOLDMAN SACHS GROUP INC | $4.8M | 132,583 | 0.00% | 7q | -39.0%-$3.1M |
| Bank of New York Mellon Corp | $4.3M | 118,249 | 0.00% | 25q | +6.3%+$253.2K |
| TWO SIGMA INVESTMENTS, LP | $4.2M | 116,291 | 0.00% | 7q | +9.3%+$358.3K |
| WELLS FARGO & COMPANY/MN | $4.2M | 114,655 | 0.00% | 7q | +499.7%+$3.5M |
| WASATCH ADVISORS LP | $3.4M | 92,742 | 0.02% | new | NEW |
| Bridge City Capital, LLC | $3.2M | 88,132 | 0.73% | 4q | +316.7%+$2.4M |
| Walleye Capital LLC | $3.1M | 86,249 | 0.01% | 2q | +5.2%+$155.2K |
| CITADEL ADVISORS LLC | $3.1M | 48,969 | 0.00% | 14q | -54.6%-$3.7M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $2.8M | 77,032 | 0.00% | 17q | +12.0%+$298.2K |
| Sixth Street Partners Management Company, L.P. | $2.8M | 77,032 | 0.00% | new | NEW |
| WELLINGTON MANAGEMENT GROUP LLP | $2.8M | 76,103 | 0.00% | 6q | +8.5%+$216.4K |
| Diametric Capital, LP | $2.6M | 73,101 | 0.28% | 6q | -53.4%-$3.0M |
| Numerai GP LLC | $2.5M | 70,114 | 0.21% | 2q | +87.7%+$1.2M |
| UBS Group AG | $2.4M | 65,424 | 0.00% | 12q | -61.3%-$3.7M |
| Squarepoint Ops LLC | $2.2M | 59,562 | 0.00% | new | NEW |
| BOOTHBAY FUND MANAGEMENT, LLC | $2.1M | 57,516 | 0.03% | 2q | +3.4%+$69.2K |
| BARCLAYS PLC | $2.0M | 56,181 | 0.00% | 7q | +13.8%+$246.4K |
| HighTower Advisors, LLC | $1.9M | 52,907 | 0.00% | 2q | +187.2%+$1.2M |
| RENAISSANCE TECHNOLOGIES LLC | $1.9M | 52,300 | 0.00% | 14q | -68.0%-$4.0M |
| POLEN CAPITAL MANAGEMENT LLC | $1.6M | 45,379 | 0.01% | 2q | +50.6%+$551.7K |
| Point72 Asset Management, L.P. | $1.6M | 44,918 | 0.00% | new | NEW |
| Aquatic Capital Management LLC | $1.6M | 43,794 | 0.05% | 5q | +263.1%+$1.1M |
| DIMENSIONAL FUND ADVISORS LP | $1.5M | 42,484 | 0.00% | new | NEW |
| HSBC HOLDINGS PLC | $1.5M | 40,974 | 0.00% | new | NEW |
| ANCHOR CAPITAL ADVISORS LLC | $1.5M | 40,619 | 0.04% | 7q | -0.6%-$8.7K |
| SEI INVESTMENTS CO | $1.3M | 34,698 | 0.00% | 2q | -40.2%-$844.8K |
| Jefferies Financial Group Inc. | $1.2M | 34,027 | 0.01% | new | NEW |
| RHUMBLINE ADVISERS | $1.2M | 33,703 | 0.00% | 5q | +9.7%+$107.8K |
| Y-Intercept (Hong Kong) Ltd | $1.2M | 33,542 | 0.02% | new | NEW |
| Invesco Ltd. | $1.2M | 33,384 | 0.00% | 5q | +45.9%+$380.5K |
| NEW YORK STATE COMMON RETIREMENT FUND | $1.2M | 32,779 | 0.00% | 5q | +304.7%+$893.4K |
| BLAIR WILLIAM & CO/IL | $1.2M | 32,419 | 0.00% | 21q | HELD |
| Riggs Asset Managment Co. Inc. | $1.2M | 32,046 | 0.21% | new | NEW |
| Sigma Planning Corp | $1.1M | 30,000 | 0.03% | new | NEW |
| SIMPLEX TRADING, LLC | $1.1M | options only | 0.00% | 4q | OPTIONS |
| AMERICAN CENTURY COMPANIES INC | $1.1M | 29,125 | 0.00% | 2q | +144.2%+$622.6K |
| JUNCTURE WEALTH STRATEGIES, LLC | $1.0M | 28,849 | 0.27% | 4q | +50.4%+$350.0K |
| DEUTSCHE BANK AG\ | $960.1K | 26,522 | 0.00% | 5q | +25.5%+$195.0K |
| STRS OHIO | $854.3K | 23,600 | 0.00% | new | NEW |
| Guilbault Capital LLC | $849.3K | 23,460 | 0.85% | 3q | +1.0%+$8.5K |
| PRUDENTIAL FINANCIAL INC | $765.0K | 21,133 | 0.00% | new | NEW |
| CITIGROUP INC | $758.5K | 20,952 | 0.00% | 8q | +722.3%+$666.2K |
| ESSEX INVESTMENT MANAGEMENT CO LLC | $728.7K | 20,131 | 0.10% | 13q | HELD |
| STATE OF WISCONSIN INVESTMENT BOARD | $707.5K | 19,544 | 0.00% | 3q | +4.8%+$32.6K |
| FIRST TRUST ADVISORS LP | $705.1K | 19,477 | 0.00% | new | NEW |
| ALLIANCEBERNSTEIN L.P. | $697.2K | 28,250 | 0.00% | new | NEW |
| NAVELLIER & ASSOCIATES INC | $652.0K | 18,010 | 0.05% | new | NEW |
| BANK OF NOVA SCOTIA | $622.6K | 17,200 | 0.00% | 2q | +14.7%+$79.6K |
| CHICAGO TRUST Co NA | $604.5K | 16,700 | 0.09% | 20q | HELD |
| Man Group plc | $584.7K | 16,152 | 0.00% | new | NEW |
| Gotham Asset Management, LLC | $578.5K | 15,982 | 0.00% | new | NEW |
| LOS ANGELES CAPITAL MANAGEMENT LLC | $567.4K | 15,675 | 0.00% | 3q | +52.6%+$195.7K |
| MetLife Investment Management, LLC | $567.4K | 15,673 | 0.00% | 5q | +0.9%+$4.9K |
| PDT Partners, LLC | $539.1K | 14,891 | 0.03% | 6q | HELD |
| Vanguard Global Advisers, LLC | $512.8K | 14,165 | 0.00% | 2q | +57.5%+$187.3K |
| LPL Financial LLC | $507.4K | 14,017 | 0.00% | new | NEW |
| Connor, Clark & Lunn Investment Management Ltd. | $476.0K | 13,150 | 0.00% | 12q | -69.2%-$1.1M |
| RAYMOND JAMES FINANCIAL INC | $450.5K | 12,444 | 0.00% | 7q | +1.6%+$7.0K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $445.1K | 12,296 | 0.00% | 5q | +2.1%+$9.3K |
| IMC-Chicago, LLC | $423.5K | options only | 0.00% | 2q | OPTIONS |
| Legato Capital Management LLC | $417.1K | 11,521 | 0.03% | new | NEW |
| Quantum Private Wealth, LLC | $416.3K | 11,500 | 0.11% | 17q | HELD |
| Menard Financial Group LLC | $385.2K | 10,642 | 0.21% | new | NEW |
| &PARTNERS | $362.0K | 10,000 | 0.00% | new | NEW |
| MACKENZIE FINANCIAL CORP | $347.2K | 9,590 | 0.00% | new | NEW |
| ENVESTNET ASSET MANAGEMENT INC | $346.9K | 9,582 | 0.00% | 7q | -10.8%-$41.9K |
| BRC Group Holdings, Inc. | $339.7K | 9,383 | 0.08% | new | NEW |
| Granite Investment Partners, LLC | $306.9K | 8,479 | 0.02% | 2q | HELD |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-07-28 | 13G/A | BlackRock, Inc. | 6.9% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 161 | $764.2M | 20,866,754 | 55 | 55 | 31 | 1.2% |
| Q1 2026 | 114 | $435.7M | 17,364,454 | 26 | 33 | 30 | 1.7% |
| Q4 2025 | 99 | $271.9M | 15,968,775 | 17 | 25 | 32 | 0.7% |
| Q3 2025 | 98 | $397.6M | 18,066,499 | 25 | 23 | 26 | 0.6% |
| Q2 2025 | 86 | $236.3M | 16,290,290 | 25 | 33 | 18 | 1.8% |
| Q1 2025 | 82 | $182.5M | 13,960,429 | 24 | 27 | 19 | 0.7% |
| Q4 2024 | 70 | $179.9M | 13,213,557 | 22 | 25 | 10 | 2.2% |
| Q3 2024 | 48 | $60.3M | 9,779,765 | 12 | 10 | 8 | 2.6% |
| Q2 2024 | 45 | $31.8M | 9,612,855 | 6 | 6 | 14 | 0.4% |
| Q1 2024 | 43 | $28.3M | 7,472,038 | 3 | 11 | 11 | 0.9% |
| Q4 2023 | 53 | $30.7M | 6,964,211 | 9 | 18 | 7 | 0.7% |
| Q3 2023 | 52 | $28.5M | 6,759,336 | 21 | 9 | 6 | 1.1% |
| Q2 2023 | 34 | $21.0M | 5,948,827 | 4 | 8 | 3 | 0.9% |
| Q1 2023 | 34 | $22.5M | 5,804,670 | 8 | 7 | 5 | 0.6% |
| Q4 2022 | 29 | $14.7M | 5,158,890 | 6 | 1 | 5 | 1.0% |
| Q3 2022 | 31 | $14.7M | 6,344,892 | 2 | 7 | 7 | 2.0% |
| Q2 2022 | 30 | $18.5M | 5,917,391 | 3 | 5 | 10 | 4.6% |
| Q1 2022 | 32 | $29.1M | 5,783,906 | 6 | 7 | 11 | 6.0% |
| Q4 2021 | 31 | $28.0M | 5,749,017 | 6 | 7 | 10 | 3.0% |
| Q3 2021 | 36 | $33.5M | 5,962,979 | 8 | 10 | 8 | 2.9% |
| Q2 2021 | 47 | $53.0M | 6,841,799 | 18 | 6 | 17 | 2.2% |
| Q1 2021 | 50 | $68.1M | 8,785,326 | 8 | 13 | 18 | 0.2% |
| Q4 2020 | 46 | $75.0M | 8,725,619 | 10 | 26 | 6 | 0.0% |
| Q3 2020 | 38 | $59.5M | 7,035,506 | 5 | 10 | 17 | 0.0% |
| Q2 2020 | 41 | $39.8M | 6,803,937 | 26 | 9 | 5 | 0.0% |
| Q1 2020 | 17 | $24.5M | 5,970,004 | 5 | 6 | 4 | 0.0% |
| Q4 2019 | 13 | $18.9M | 2,623,150 | 3 | 6 | 1 | 0.0% |
| Q3 2019 | 14 | $14.4M | 2,277,636 | 5 | 7 | 1 | 0.0% |
| Q2 2019 | 10 | $14.0M | 1,767,833 | 1 | 6 | 1 | 0.0% |
| Q1 2019 | 12 | $12.0M | 1,501,083 | 3 | 5 | 1 | 0.0% |
| Q4 2018 | 12 | $7.0M | 1,152,124 | 2 | 0 | 0 | 0.0% |