Hepion Pharmaceuticals, Inc. (HEPA) Ownership

OTC Pink: HEPATop holders, insider trades and short interest.

HEPA ownership summary

as of October 21, 2026
Institutions
0.0%
of shares outstanding
Insiders
52.95%
of shares outstanding
Shares outstanding
123.2M
Float
43.2M
shares available to trade
Short interest
4.10%
448K shares short
Days to cover
0.05
short interest down 30.8% vs prior month
  • Insiders 52.95%
  • Other investors 47.05%

HEPA top institutional holders

1 largest
Hepion Pharmaceuticals, Inc. top institutional holders
#Holder% of sharesSharesValueChangeReported
1XTX Topco Ltd0.00%——−17,361 (−100.0%)September 30, 2025

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 1, 0 holders added 0 shares and 1 cut 17K.

HEPA top mutual fund and ETF holders

5 largest
Hepion Pharmaceuticals, Inc. top fund holders
#Holder% of sharesSharesValueChangeReported
1Extended Equity Market Fund B<0.01%292$34—December 31, 2025
2BlackRock Extended Equity Market Fund K<0.01%248$29—June 30, 2026
3NT Ext Equity Mkt Idx Fd - DC - NL - T2<0.01%54$6−4 (−6.9%)June 30, 2026
4Extended Equity Market Fund M0.00%30$4+1 (+3.4%)June 30, 2026
5NT Ext Eq Mkt Idx Fd DC Lending Tier 50.00%26$3—March 31, 2026

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

HEPA insider transactions

latest 6
Hepion Pharmaceuticals, Inc. insider transactions
DateNameTransactionPriceSharesValue
2023-11-27Peter WijngaardBuy$152.5050$7,625
2023-11-24Peter WijngaardBuy$154.5050$7,725
2023-09-19Peter WijngaardBuy$282.0020$5,640
2023-09-18Robert T FosterBuy$280.0032$8,960
2023-09-15Peter WijngaardBuy$280.0040$11,200
2023-09-15Robert T FosterBuy$270.0032$8,640

Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.

HEPA shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns HEPA

Institutional investors own 0.0% of Hepion Pharmaceuticals's shares and insiders 52.95%. The largest holder is XTX Topco Ltd with 0.00% of the shares (0), as of September 30, 2025. Among the top 1 institutions, 0 added shares and 1 reduced their stake in the latest filings. Short interest is 4.10% of the float, or 0.05 days of average trading volume. The share count rose 587,987.5% since 2013.

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

HEPA ownership FAQ

Who owns the most Hepion Pharmaceuticals stock?

The largest shareholders of Hepion Pharmaceuticals are XTX Topco Ltd (0.00%).

What percentage of Hepion Pharmaceuticals is owned by institutions?

Institutions hold 0.0% of Hepion Pharmaceuticals's shares outstanding; insiders hold 52.95%.

Which funds own Hepion Pharmaceuticals?

The largest fund holders of Hepion Pharmaceuticals are Extended Equity Market Fund B (<0.01%), BlackRock Extended Equity Market Fund K (<0.01%), NT Ext Equity Mkt Idx Fd - DC - NL - T2 (<0.01%), Extended Equity Market Fund M (0.00%), NT Ext Eq Mkt Idx Fd DC Lending Tier 5 (0.00%).

What is Hepion Pharmaceuticals's short interest?

448K shares of Hepion Pharmaceuticals were sold short, 4.10% of the float; at the average daily volume it would take 0.05 days to cover.

Are insiders buying or selling Hepion Pharmaceuticals?

Of the latest 6 reported insider transactions in Hepion Pharmaceuticals (since September 15, 2023), 6 were purchases and 0 were sales.

How many shares of Hepion Pharmaceuticals are outstanding?

Hepion Pharmaceuticals has 123.2M shares outstanding, of which 43.2M are in the public float.

Biotechnology: ownership