Soligenix, Inc. (SNGX) Ownership

NASDAQ: SNGXTop holders, insider trades and short interest.

SNGX ownership summary

as of October 18, 2026
Institutions
6.7%
of shares outstanding
Insiders
4.59%
of shares outstanding
Shares outstanding
21.8M
Float
21.7M
shares available to trade
Short interest
0.77%
168K shares short
Days to cover
0.71
short interest down 17.0% vs prior month
  • Institutions 6.72%
  • Insiders 4.59%
  • Other investors 88.69%

SNGX top institutional holders

20 largest
Soligenix, Inc. top institutional holders
#Holder% of sharesSharesValueChangeReported
1Citadel Advisors Llc0.96%210K$73,327+209,507 (0.0%)June 30, 2026
2Jane Street Group LLC0.95%207K$72,622+207,492 (0.0%)June 30, 2026
3XTX Topco Ltd0.72%157K$54,992+136,320 (+655.4%)June 30, 2026
4Geode Capital Management, LLC0.55%120K$42,093—June 30, 2026
5Vanguard Capital Management, LLC0.37%81K$28,352+22,605 (+38.7%)June 30, 2026
6Virtu Financial LLC0.28%61K$21,316+60,903 (0.0%)June 30, 2026
7Vanguard Fiduciary Trust Co0.25%54K$18,870—June 30, 2026
8Northern Trust Corp0.17%38K$13,316+38,046 (0.0%)June 30, 2026
9Morgan Stanley - Brokerage Accounts0.02%3,592$1,257—June 30, 2026
10Mercer Global Advisors Inc.0.01%3,001$1,050+3,001 (0.0%)June 30, 2026
11JONES FINANCIAL COMPANIES LLLP0.01%1,236$433+1,136 (+1,136.0%)June 30, 2026
12JPMorgan Chase & Co<0.01%245$86−60 (−19.7%)June 30, 2026
13Plante Moran Financial Advisors LP<0.01%209$73—June 30, 2026
14CWM, LLC duplicate0.00%6$2+6 (0.0%)March 31, 2026
15Royal Bank of Canada0.00%5$2+5 (0.0%)June 30, 2026
16Albion Financial Group (Utah)0.00%3$1+1 (+50.0%)June 30, 2026
17SBI Securities Co Ltd0.00%2$1−400 (−99.5%)June 30, 2026
18Advisor Group Holdings, Inc.0.00%——−2 (−100.0%)June 30, 2026
19DRW Securities, LLC0.00%——−124,801 (−100.0%)March 31, 2026
20Citigroup Inc0.00%——−19 (−100.0%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 11 holders added 679K shares and 5 cut 125K.

SNGX top mutual fund and ETF holders

3 largest
Soligenix, Inc. top fund holders
#Holder% of sharesSharesValueChangeReported
1Fidelity Extended Market Index0.35%76K$26,519−407 (−0.5%)August 31, 2026
2Fidelity Series Total Market Index0.07%14K$5,061—August 31, 2026
3Fidelity Total Market Index0.04%8,054$2,819—August 31, 2026

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

SNGX insider transactions

latest 1
Soligenix, Inc. insider transactions
DateNameTransactionPriceSharesValue
2025-10-02Christopher J SchaberBuy$1.3215,132$19,974

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.

SNGX shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns SNGX

Institutional investors own 6.7% of Soligenix's shares and insiders 4.59%. The largest holder is Citadel Advisors Llc with 0.96% of the shares (210K), as of June 30, 2026. Among the top 20 institutions, 11 added shares and 5 reduced their stake in the latest filings. Short interest is 0.77% of the float, or 0.71 days of average trading volume. The share count rose 3,152.5% since 2014.

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

SNGX ownership FAQ

Who owns the most Soligenix stock?

The largest shareholders of Soligenix are Citadel Advisors Llc (0.96%), Jane Street Group LLC (0.95%), XTX Topco Ltd (0.72%), Geode Capital Management, LLC (0.55%), Vanguard Capital Management, LLC (0.37%).

What percentage of Soligenix is owned by institutions?

Institutions hold 6.7% of Soligenix's shares outstanding; insiders hold 4.59%.

Which funds own Soligenix?

The largest fund holders of Soligenix are Fidelity Extended Market Index (0.35%), Fidelity Series Total Market Index (0.07%), Fidelity Total Market Index (0.04%).

What is Soligenix's short interest?

168K shares of Soligenix were sold short, 0.77% of the float; at the average daily volume it would take 0.71 days to cover.

Are insiders buying or selling Soligenix?

Of the latest 1 reported insider transactions in Soligenix (since October 2, 2025), 1 were purchases and 0 were sales.

How many shares of Soligenix are outstanding?

Soligenix has 21.8M shares outstanding, of which 21.7M are in the public float.

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