There is a long list of 55 institutional holders of ETON within the last two holding periods in our database of 13F filers, so we've sorted through to present to you just the top 50 institutional holders of ETON by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-ETON table below, the initial column indicates the name of each top institutional holder of ETON, with a link to that fund's top holdings. The next columns indicate the amount of ETON stock held by each of the institutional holders of ETON, followed by the ETON position size held by the institution, and finally the date of the quarterly 13F filing period the holdings data represents for that institution.

Holder	Amount	Position Size ($ in 1000's)	As of
Opaleye Management Inc.	2,529,887	$11,081	12/31/2023
ETON	2,529,887	$11,081	12/31/2023
Vanguard Group Inc.	1,027,688	$4,501	12/31/2023
ETON	1,027,688	$4,501	12/31/2023
Acuitas Investments LLC	492,054	$2,155	12/31/2023
ETON	492,054	$2,155	12/31/2023
Westside Investment Management Inc.	573,960	$2,152	03/31/2024
ETON	573,960	$2,152	03/31/2024
Paradigm Capital Management Inc. NY	300,000	$1,314	12/31/2023
ETON	300,000	$1,314	12/31/2023
BlackRock Inc.	284,241	$1,245	12/31/2023
ETON	284,241	$1,245	12/31/2023
Bridgeway Capital Management Inc.	253,362	$1,110	12/31/2023
ETON	253,362	$1,110	12/31/2023
Geode Capital Management LLC	227,256	$996	12/31/2023
ETON	227,256	$996	12/31/2023
Parkman Healthcare Partners LLC	199,168	$872	12/31/2023
ETON	199,168	$872	12/31/2023
Ameriprise Financial Inc.	161,928	$709	12/31/2023
ETON	161,928	$709	12/31/2023
Acadian Asset Management LLC	137,488	$601	12/31/2023
ETON	137,488	$601	12/31/2023
State Street Corp	81,403	$357	12/31/2023
ETON	81,403	$357	12/31/2023
Bank of New York Mellon Corp	79,402	$348	12/31/2023
ETON	79,402	$348	12/31/2023
Essex Investment Management Co. LLC	78,613	$344	12/31/2023
ETON	78,613	$344	12/31/2023
Northern Trust Corp	64,590	$283	12/31/2023
ETON	64,590	$283	12/31/2023
Squarepoint Ops LLC	63,424	$278	12/31/2023
ETON	63,424	$278	12/31/2023
Schonfeld Strategic Advisors LLC	58,310	$255	12/31/2023
ETON	58,310	$255	12/31/2023
Two Sigma Investments LP	52,500	$230	12/31/2023
ETON	52,500	$230	12/31/2023
Qube Research & Technologies Ltd	50,443	$221	12/31/2023
ETON	50,443	$221	12/31/2023
Connor Clark & Lunn Investment Management Ltd.	43,078	$189	12/31/2023
ETON	43,078	$189	12/31/2023
Renaissance Technologies LLC	42,700	$187	12/31/2023
ETON	42,700	$187	12/31/2023
Blair William & Co. IL	36,979	$162	12/31/2023
ETON	36,979	$162	12/31/2023
Bank of Montreal Can	29,900	$142	12/31/2023
ETON	29,900	$142	12/31/2023
Susquehanna International Group LLP		$138	12/31/2023
ETON	19,500	$85	12/31/2023
Call	12,100	$53	12/31/2023
Victory Capital Management Inc.	27,979	$123	12/31/2023
ETON	27,979	$123	12/31/2023
XTX Topco Ltd	22,858	$100	12/31/2023
ETON	22,858	$100	12/31/2023
Bailard Inc.	22,639	$99	12/31/2023
ETON	22,639	$99	12/31/2023
Millennium Management LLC	20,393	$89	12/31/2023
ETON	20,393	$89	12/31/2023
Jane Street Group LLC	18,428	$81	12/31/2023
ETON	18,428	$81	12/31/2023
Citadel Advisors LLC		$77	12/31/2023
Call	15,800	$69	12/31/2023
ETON	4,956	$22	12/31/2023
Put	3,100	$14	12/31/2023
Group One Trading L.P.		$72	12/31/2023
Call	16,500	$72	12/31/2023
CHICAGO TRUST Co NA	16,700	$63	03/31/2024
ETON	16,700	$63	03/31/2024
Charles Schwab Investment Management Inc.	13,239	$58	12/31/2023
ETON	13,239	$58	12/31/2023
Virtu Financial LLC	12,958	$57	12/31/2023
ETON	12,958	$57	12/31/2023
Heron Bay Capital Management	11,515	$50	12/31/2023
ETON	11,515	$50	12/31/2023
Quantum Private Wealth LLC	11,500	$50	12/31/2023
ETON	11,500	$50	12/31/2023
Two Sigma Advisers LP	10,900	$48	12/31/2023
ETON	10,900	$48	12/31/2023
Financial Advisors Network Inc.	10,633	$47	12/31/2023
ETON	10,633	$47	12/31/2023
Y Intercept Hong Kong Ltd	10,688	$47	12/31/2023
ETON	10,688	$47	12/31/2023
Dimensional Fund Advisors LP	10,564	$46	12/31/2023
ETON	10,564	$46	12/31/2023
Raymond James & Associates	10,250	$38	03/31/2024
ETON	10,250	$38	03/31/2024
Tower Research Capital LLC TRC	4,062	$18	12/31/2023
ETON	4,062	$18	12/31/2023
UBS Group AG	3,752	$16	12/31/2023
ETON	3,752	$16	12/31/2023
Royal Bank of Canada	2,631	$12	12/31/2023
ETON	2,631	$12	12/31/2023
Citigroup Inc.	2,230	$10	12/31/2023
ETON	2,230	$10	12/31/2023
Truvestments Capital LLC	1,848	$8	12/31/2023
ETON	1,848	$8	12/31/2023
Lazard Asset Management LLC	1,092	$5	12/31/2023
ETON	1,092	$5	12/31/2023
Plante Moran Financial Advisors LLC	1,000	$4	12/31/2023
ETON	1,000	$4	12/31/2023
NewSquare Capital LLC	1,000	$4	12/31/2023
ETON	1,000	$4	12/31/2023
BNP Paribas Arbitrage SA	350	$2	12/31/2023
ETON	350	$2	12/31/2023