Eloxx Pharmaceuticals, Inc. (ELOX) Ownership

NASDAQ: ELOXTop holders, insider trades and short interest.

ELOX ownership summary

as of October 17, 2026
Institutions
73.8%
of shares outstanding
Insiders
19.06%
of shares outstanding
Shares outstanding
4.0M
Float
931K
shares available to trade
Short interest
1.48%
54K shares short
Days to cover
1.90
short interest up 18.2% vs prior month
  • Institutions 73.76%
  • Insiders 19.06%
  • Other investors 7.17%

ELOX top institutional holders

20 largest
Eloxx Pharmaceuticals, Inc. top institutional holders
#Holder% of sharesSharesValueChangeReported
1Nantahala Capital Management, LLC23.28%800K$10.4M+800,000 (0.0%)June 30, 2026
2EcoR1 Capital, LLC11.64%400K$5.2M+400,000 (0.0%)June 30, 2026
3Siren, L.L.C.11.64%400K$5.2M+400,000 (0.0%)June 30, 2026
4Samsara BioCapital, LLC11.64%400K$5.2M+400,000 (0.0%)June 30, 2026
5Aberdeen Group PLC11.64%400K$5.2M+400,000 (0.0%)June 30, 2026
6Stonepine Capital Management Llc11.56%397K$5.2M+397,160 (0.0%)June 30, 2026
7Vanguard Capital Management, LLC2.29%79K$1.0M+78,680 (0.0%)June 30, 2026
8Vanguard Fiduciary Trust Co0.31%11K$138,144+10,602 (0.0%)June 30, 2026
9SEVEN GRAND MANAGERS, LLC0.29%10K$130,300+10,000 (0.0%)June 30, 2026
10Morgan Stanley - Brokerage Accounts0.04%1,544$20,118+1,544 (0.0%)June 30, 2026
11Vanguard Global Advisers, LLC0.02%718$9,356+718 (0.0%)June 30, 2026
12UBS Group AG0.02%637$8,300+637 (0.0%)June 30, 2026
13Wells Fargo & Co<0.01%126$1,642+126 (0.0%)June 30, 2026
14Royal Bank of Canada<0.01%98$1,277+98 (0.0%)June 30, 2026
15Pioneer Family Office, LLC<0.01%96$1,251+96 (0.0%)June 30, 2026
16Altshuler Shaham Ltd<0.01%25$326+25 (0.0%)June 30, 2026
17Barclays PLC<0.01%12$156+12 (0.0%)June 30, 2026
18OLD POINT TRUST & FINANCIAL SERVICES N A<0.01%5$65+5 (0.0%)June 30, 2026
19Citigroup Inc<0.01%4$52+4 (0.0%)June 30, 2026
20Activest Wealth Management<0.01%4$52+4 (0.0%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 20 holders added 2.9M shares and 0 cut 0.

ELOX top mutual fund and ETF holders

9 largest
Eloxx Pharmaceuticals, Inc. top fund holders
#Holder% of sharesSharesValueChangeReported
1abrdn Healthcare Investors7.83%269K$3.5M—August 31, 2026
2abrdn Life Sciences Investors3.81%131K$1.7M—August 31, 2026
3Vanguard MStar Total Stk Mkt Idx Invest1.67%57K$748,912—August 31, 2026
4EQ/Morgan Stanley Small Cap Growth K1.16%40K$521,552—August 31, 2026
5Fidelity Nasdaq Composite Index0.07%2,294$29,891—August 31, 2026
6Vanguard Balanced Index Inv0.03%1,036$13,499—August 31, 2026
7Vanguard MStar Inst Ttl StkMktIdxInstlPl0.03%877$11,427—August 31, 2026
8Vanguard U.S. Eq Idx £ Acc0.02%718$9,356—August 31, 2026
9Counterpoint Global CIBC U.S. Sm CpGrETF<0.01%155$2,020—August 31, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

ELOX shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns ELOX

Institutional investors own 73.8% of Eloxx Pharmaceuticals's shares and insiders 19.06%. The largest holder is Nantahala Capital Management, LLC with 23.28% of the shares (800K), as of June 30, 2026. Among the top 20 institutions, 20 added shares and 0 reduced their stake in the latest filings. Short interest is 1.48% of the float, or 1.90 days of average trading volume. The share count rose 14,987.0% since 2015.

Related: ELOX analyst forecast, ELOX key metrics. See the ELOX stock overview for the latest quote and news.

ELOX ownership FAQ

Who owns the most Eloxx Pharmaceuticals stock?

The largest shareholders of Eloxx Pharmaceuticals are Nantahala Capital Management, LLC (23.28%), EcoR1 Capital, LLC (11.64%), Siren, L.L.C. (11.64%), Samsara BioCapital, LLC (11.64%), Aberdeen Group PLC (11.64%).

What percentage of Eloxx Pharmaceuticals is owned by institutions?

Institutions hold 73.8% of Eloxx Pharmaceuticals's shares outstanding; insiders hold 19.06%.

Which funds own Eloxx Pharmaceuticals?

The largest fund holders of Eloxx Pharmaceuticals are abrdn Healthcare Investors (7.83%), abrdn Life Sciences Investors (3.81%), Vanguard MStar Total Stk Mkt Idx Invest (1.67%), EQ/Morgan Stanley Small Cap Growth K (1.16%), Fidelity Nasdaq Composite Index (0.07%).

What is Eloxx Pharmaceuticals's short interest?

54K shares of Eloxx Pharmaceuticals were sold short, 1.48% of the float; at the average daily volume it would take 1.90 days to cover.

How many shares of Eloxx Pharmaceuticals are outstanding?

Eloxx Pharmaceuticals has 4.0M shares outstanding, of which 931K are in the public float.

Biotechnology: ownership