Eton Pharmaceuticals, Inc. (ETON) — Institutional Holders, Q2 2026
164 institutional investment managers reported a ETON position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $722.1M. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
ETON in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- NuveenAdded · +317,757 sh+$11.5M
- MORGAN STANLEYAdded · +290,015 sh+$10.5M
- D. E. ShawNew · +188,452 sh+$6.8M
- BlackRockAdded · +178,547 sh+$6.5M
- STATE STREETAdded · +171,571 sh+$6.2M
Biggest sellers
- CANNELL CAPITALTrimmed · -171,238 sh-$6.2M
- Soleus Capital Management, L.P.Sold out · -166,381 sh-$6.0M
- RENAISSANCE TECHNOLOGIESTrimmed · -111,021 sh-$4.0M
- THOMPSON SIEGEL & WALMSLEYTrimmed · -108,857 sh-$3.9M
- UBS Group AGTrimmed · -103,534 sh-$3.7M
ETON 13F holders ranked 1–100 of 164
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | Opaleye Management#1 · 2,860,000 sh | 2,860,000 | $103.5M | 9.38% | 0.0% |
| 2 | EcoR1 Capital#2 · 2,171,938 sh | 2,171,938 | $78.6M | 3.82% | 0.0% |
| 3 | BlackRock#3 · 1,895,833 sh | 1,895,833 | $68.6M | <0.01% | +10.4% |
| 4 | Nantahala Capital Management#4 · 1,175,951 sh | 1,175,951 | $42.6M | 1.42% | 0.0% |
| 5 | VANGUARD CAPITAL MANAGEMENT#5 · 976,570 sh | 976,570 | $35.4M | <0.01% | -1.8% |
| 6 | MORGAN STANLEY#6 · 767,972 sh | 767,972 | $27.8M | <0.01% | +60.7% |
| 7 | STATE STREET#7 · 701,786 sh | 701,786 | $25.4M | <0.01% | +32.4% |
| 8 | GEODE CAPITAL MANAGEMENT#8 · 652,303 sh | 652,303 | $23.6M | <0.01% | +12.9% |
| 9 | OBERWEIS ASSET MANAGEMENT#9 · 501,600 sh | 501,600 | $18.2M | 0.38% | +14.2% |
| 10 | National Philanthropic#10 · 492,112 sh | 492,112 | $17.8M | 0.26% | 0.0% |
| 11 | Westside Investment Management#11 · 431,160 sh | 431,160 | $15.6M | 2.05% | -7.9% |
| 12 | Pillsbury Lake Capital#12 · 387,157 sh | 387,157 | $14.0M | 3.83% | +6.1% |
| 13 | Nuveen#13 · 375,707 sh | 375,707 | $13.6M | <0.01% | +548.3% |
| 14 | BNP PARIBAS FINANCIAL MARKETS#14 · 322,466 sh | 322,466 | $11.7M | <0.01% | +6.7% |
| 15 | Woodline Partners#15 · 310,879 sh | 310,879 | $11.3M | 0.03% | +82.1% |
| 16 | THOMPSON SIEGEL & WALMSLEY#16 · 297,232 sh | 297,232 | $10.8M | 0.19% | -26.8% |
| 17 | NORTHERN#17 · 255,849 sh | 255,849 | $9.3M | <0.01% | +7.6% |
| 18 | MARSHALL WACE, LLP#18 · 249,182 sh | 249,182 | $9.0M | <0.01% | +201.2% |
| 19 | Panoramic Capital#19 · 208,192 sh | 208,192 | $7.5M | 3.24% | +12.5% |
| 20 | VANGUARD PORTFOLIO MANAGEMENT#20 · 194,591 sh | 194,591 | $7.0M | <0.01% | +28.2% |
| 21 | JPMORGAN CHASE#21 · 191,635 sh | 191,635 | $7.0M | <0.01% | +12.8% |
| 22 | D. E. Shaw#22 · 188,452 sh | 188,452 | $6.8M | <0.01% | New |
| 23 | JANE STREET GROUP#23 · 185,697 sh | 185,697 | $6.7M | <0.01% | +94.6% |
| 24 | Lumbard & Kellner#24 · 175,909 sh | 175,909 | $6.4M | 1.93% | 0.0% |
| 25 | CANNELL CAPITAL#25 · 170,747 sh | 170,747 | $6.2M | 4.14% | -50.1% |
| 26 | NORGES BANK#26 · 169,500 sh | 169,500 | $6.1M | <0.01% | — |
| 27 | VANGUARD FIDUCIARY#27 · 168,539 sh | 168,539 | $6.1M | <0.01% | +2.3% |
| 28 | Informed Momentum#28 · 158,045 sh | 158,045 | $5.7M | 0.51% | +225.0% |
| 29 | Prospect Capital Advisors#29 · 157,200 sh | 157,200 | $5.7M | 2.58% | New |
| 30 | Aristides Capital#30 · 145,410 sh | 145,410 | $5.3M | 1.02% | -21.8% |
| 31 | BANK OF AMERICA#31 · 142,257 sh | 142,257 | $5.1M | <0.01% | -1.5% |
| 32 | PRELUDE CAPITAL MANAGEMENT#32 · 137,572 sh | 137,572 | $5.0M | 0.36% | -27.1% |
| 33 | GOLDMAN SACHS GROUP#33 · 132,583 sh | 132,583 | $4.8M | <0.01% | -39.0% |
| 34 | Bank of New York Mellon#34 · 118,249 sh | 118,249 | $4.3M | <0.01% | +6.3% |
| 35 | TWO SIGMA INVESTMENTS#35 · 116,291 sh | 116,291 | $4.2M | <0.01% | +9.3% |
| 36 | WELLS FARGO & COMPANY#36 · 114,655 sh | 114,655 | $4.2M | <0.01% | +1099.4% |
| 37 | WASATCH ADVISORS#37 · 92,742 sh | 92,742 | $3.4M | — | New |
| 38 | Bridge City Capital#38 · 88,132 sh | 88,132 | $3.2M | 0.73% | +316.7% |
| 39 | Walleye Capital#39 · 86,249 sh | 86,249 | $3.1M | 0.01% | +5.2% |
| 40 | CHARLES SCHWAB INVESTMENT MANAGEMENT#40 · 77,032 sh | 77,032 | $2.8M | <0.01% | +12.0% |
| 41 | WELLINGTON MANAGEMENT GROUP LLP#41 · 76,103 sh | 76,103 | $2.8M | <0.01% | +8.5% |
| 42 | Diametric Capital#42 · 73,101 sh | 73,101 | $2.6M | 0.28% | -53.4% |
| 43 | Numerai GP#43 · 70,114 sh | 70,114 | $2.5M | 0.21% | +87.7% |
| 44 | UBS Group AG#44 · 65,424 sh | 65,424 | $2.4M | <0.01% | -61.3% |
| 45 | Squarepoint Ops#45 · 59,562 sh | 59,562 | $2.2M | <0.01% | New |
| 46 | BOOTHBAY FUND MANAGEMENT#46 · 57,516 sh | 57,516 | $2.1M | 0.03% | +3.4% |
| 47 | BARCLAYS PLC#47 · 56,181 sh | 56,181 | $2.0M | <0.01% | +13.8% |
| 48 | HighTower Advisors#48 · 52,907 sh | 52,907 | $1.9M | <0.01% | +187.2% |
| 49 | RENAISSANCE TECHNOLOGIES#49 · 52,300 sh | 52,300 | $1.9M | <0.01% | -68.0% |
| 50 | CITADEL ADVISORS#50 · 48,969 sh | 48,969 | $1.8M | <0.01% | -54.6% |
| 51 | POLEN CAPITAL MANAGEMENT#51 · 45,379 sh | 45,379 | $1.6M | 0.01% | +50.6% |
| 52 | Point72 Asset Management, L.P.#52 · 44,918 sh | 44,918 | $1.6M | <0.01% | New |
| 53 | Aquatic Capital Management#53 · 43,794 sh | 43,794 | $1.6M | 0.05% | +263.1% |
| 54 | DIMENSIONAL FUND ADVISORS#54 · 42,484 sh | 42,484 | $1.5M | <0.01% | New |
| 55 | HSBC PLC#55 · 40,974 sh | 40,974 | $1.5M | <0.01% | New |
| 56 | ANCHOR CAPITAL ADVISORS#56 · 40,619 sh | 40,619 | $1.5M | 0.04% | -0.6% |
| 57 | SEI INVESTMENTS#57 · 34,698 sh | 34,698 | $1.3M | <0.01% | -40.2% |
| 58 | LEUCADIA NATIONAL#58 · 34,027 sh | 34,027 | $1.2M | <0.01% | New |
| 59 | RHUMBLINE ADVISERS#59 · 33,703 sh | 33,703 | $1.2M | <0.01% | +9.7% |
| 60 | Y-Intercept (Hong Kong) Ltd#60 · 33,542 sh | 33,542 | $1.2M | — | New |
| 61 | Invesco Ltd.#61 · 33,384 sh | 33,384 | $1.2M | <0.01% | +45.9% |
| 62 | NEW YORK STATE COMMON RETIREMENT FUND#62 · 32,779 sh | 32,779 | $1.2M | <0.01% | +304.7% |
| 63 | BLAIR WILLIAM#63 · 32,419 sh | 32,419 | $1.2M | <0.01% | +0.1% |
| 64 | Riggs Asset Managment#64 · 32,046 sh | 32,046 | $1.2M | 0.21% | New |
| 65 | Sigma Planning#65 · 30,000 sh | 30,000 | $1.1M | — | New |
| 66 | AMERICAN CENTURY COMPANIES#66 · 29,125 sh | 29,125 | $1.1M | <0.01% | +144.2% |
| 67 | JUNCTURE WEALTH STRATEGIES#67 · 28,849 sh | 28,849 | $1.0M | — | +50.4% |
| 68 | DEUTSCHE BANK AG\#68 · 26,522 sh | 26,522 | $960.1K | <0.01% | +25.5% |
| 69 | STRS OHIO#69 · 23,600 sh | 23,600 | $854.3K | <0.01% | New |
| 70 | Guilbault Capital#70 · 23,460 sh | 23,460 | $849.3K | 0.85% | +1.0% |
| 71 | PRICE T ROWE ASSOCIATES#71 · 21,932 sh | 21,932 | $794.0K | <0.01% | +24.2% |
| 72 | PRUDENTIAL FINANCIAL#72 · 21,133 sh | 21,133 | $765.0K | <0.01% | New |
| 73 | CITIGROUP#73 · 20,952 sh | 20,952 | $758.5K | <0.01% | +722.3% |
| 74 | ESSEX INVESTMENT MANAGEMENT#74 · 20,131 sh | 20,131 | $728.7K | — | -0.3% |
| 75 | STATE OF WISCONSIN INVESTMENT BOARD#75 · 19,544 sh | 19,544 | $707.5K | <0.01% | +4.8% |
| 76 | FIRST ADVISORS#76 · 19,477 sh | 19,477 | $705.1K | <0.01% | New |
| 77 | ALLIANCEBERNSTEIN L.P.#77 · 28,250 sh | 28,250 | $697.2K | <0.01% | New |
| 78 | NAVELLIER & ASSOCIATES#78 · 18,010 sh | 18,010 | $652.0K | 0.05% | New |
| 79 | BANK OF NOVA SCOTIA#79 · 17,200 sh | 17,200 | $622.6K | <0.01% | +14.7% |
| 80 | CHICAGO NA#80 · 16,700 sh | 16,700 | $604.5K | 0.09% | 0.0% |
| 81 | Man Group plc#81 · 16,152 sh | 16,152 | $584.7K | <0.01% | New |
| 82 | Gotham Asset Management#82 · 15,982 sh | 15,982 | $578.5K | <0.01% | New |
| 83 | LOS ANGELES CAPITAL MANAGEMENT#83 · 15,675 sh | 15,675 | $567.4K | <0.01% | +52.6% |
| 84 | MetLife Investment Management#84 · 15,673 sh | 15,673 | $567.4K | <0.01% | +0.9% |
| 85 | ACADIAN ASSET MANAGEMENT#85 · 15,013 sh | 15,013 | $541.0K | <0.01% | New |
| 86 | PDT Partners#86 · 14,891 sh | 14,891 | $539.1K | 0.03% | 0.0% |
| 87 | SUSQUEHANNA INTERNATIONAL GROUP, LLP#87 · 14,505 sh | 14,505 | $525.1K | 0.00% | -57.4% |
| 88 | Vanguard Global Advisers#88 · 14,165 sh | 14,165 | $512.8K | <0.01% | +57.5% |
| 89 | LPL Financial#89 · 14,017 sh | 14,017 | $507.4K | <0.01% | New |
| 90 | Connor, Clark & Lunn Investment Management Ltd.#90 · 13,150 sh | 13,150 | $476.0K | <0.01% | -69.2% |
| 91 | RAYMOND JAMES FINANCIAL#91 · 12,444 sh | 12,444 | $450.5K | <0.01% | +1.6% |
| 92 | MIRAE ASSET GLOBAL ETFS Ltd.#92 · 12,296 sh | 12,296 | $445.1K | <0.01% | +2.1% |
| 93 | Quantum Private Wealth#93 · 11,500 sh | 11,500 | $416.3K | — | 0.0% |
| 94 | Menard Financial Group#94 · 10,642 sh | 10,642 | $385.2K | 0.21% | New |
| 95 | WILEY BROS.-AINTREE CAPITAL#95 · 10,000 sh | 10,000 | $362.0K | <0.01% | New |
| 96 | MACKENZIE FINANCIAL#96 · 9,590 sh | 9,590 | $347.2K | <0.01% | New |
| 97 | ENVESTNET ASSET MANAGEMENT#97 · 9,582 sh | 9,582 | $346.9K | <0.01% | -10.8% |
| 98 | BRC Group#98 · 9,383 sh | 9,383 | $339.7K | 0.08% | New |
| 99 | Virtu Financial#99 · 9,102 sh | 9,102 | $329.0K | 0.01% | New |
| 100 | Granite Investment Partners#100 · 8,479 sh | 8,479 | $306.9K | 0.02% | 0.0% |
Funds that sold out of ETON in Q2 2026 (5)
Held ETON at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| Soleus Capital Management, L.P.166,381 sh | 166,381 | $4.1M |
| Manatuck Hill Partners40,000 sh | 40,000 | $987.2K |
| MILLENNIUM MANAGEMENT14,939 sh | 14,939 | $368.7K |
| Advisory Services Network50 sh | 50 | $1.2K |
| TWIN PEAKS WEALTH ADVISORS38 sh | 38 | $938.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.