Shuttle Pharmaceuticals Holdings, Inc. (SHPH) Ownership
SHPH ownership summary
as of October 17, 2026- Institutions
- 1.9% of shares outstanding
- Insiders
- 0.84% of shares outstanding
- Shares outstanding
- 4.8M
- Float
- 4.8M shares available to trade
- Short interest
- 0.37% 18K shares short
- Days to cover
- 0.54 short interest down 19.0% vs prior month
- Institutions 1.93%
- Insiders 0.84%
- Other investors 97.23%
SHPH top institutional holders
14 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | HRT FINANCIAL LLC | 1.65% | 79K | $399,273 | +78,597 (0.0%) | June 30, 2026 |
| 2 | Citadel Advisors Llc | 0.51% | 24K | $123,718 | +24,354 (0.0%) | June 30, 2026 |
| 3 | Barclays PLC | 0.02% | 750 | $3,810 | +750 (0.0%) | June 30, 2026 |
| 4 | Tower Research Capital LLC | 0.01% | 389 | $1,976 | −75 (−16.2%) | June 30, 2026 |
| 5 | Wall Street Access Asset Management, LLC | <0.01% | 120 | $610 | +60 (+100.0%) | June 30, 2026 |
| 6 | Ikarian Capital, LLC | 0.00% | — | — | −6,899 (−100.0%) | June 30, 2026 |
| 7 | Federation des caisses Desjardins du Quebec | 0.00% | — | — | −2 (−100.0%) | March 31, 2026 |
| 8 | Citigroup Inc | 0.00% | — | — | −1 (−100.0%) | March 31, 2026 |
| 9 | UBS Group AG | 0.00% | — | — | −567 (−100.0%) | June 30, 2026 |
| 10 | Morgan Stanley - Brokerage Accounts | 0.00% | — | — | −3 (−100.0%) | June 30, 2026 |
| 11 | Geode Capital Management, LLC | 0.00% | — | — | −4,622 (−100.0%) | June 30, 2026 |
| 12 | Virtu Financial LLC | 0.00% | — | — | −1,238 (−100.0%) | June 30, 2026 |
| 13 | Bank of America Corp | 0.00% | — | — | −12 (−100.0%) | March 31, 2026 |
| 14 | BOOTHBAY FUND MANAGEMENT, LLC | 0.00% | — | — | −2,036 (−100.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 14, 4 holders added 104K shares and 10 cut 15K.
SHPH top mutual fund and ETF holders
1 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Fidelity Extended Market Index | 0.31% | 15K | $74,640 | +10,904 (+287.8%) | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
SHPH insider transactions
latest 1| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2023-12-13 | Bette Jacobs | Sell | $11.50 | 166 | $1,909 |
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.
SHPH shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns SHPH
Institutional investors own 1.9% of Shuttle Pharmaceuticals's shares and insiders 0.84%. The largest holder is HRT FINANCIAL LLC with 1.65% of the shares (79K), as of June 30, 2026. Among the top 14 institutions, 4 added shares and 10 reduced their stake in the latest filings. Short interest is 0.37% of the float, or 0.54 days of average trading volume. The share count fell 85.1% since 2021.
Related: SHPH key metrics. See the SHPH stock overview for the latest quote and news.
SHPH ownership FAQ
Who owns the most Shuttle Pharmaceuticals stock?
The largest shareholders of Shuttle Pharmaceuticals are HRT FINANCIAL LLC (1.65%), Citadel Advisors Llc (0.51%), Barclays PLC (0.02%), Tower Research Capital LLC (0.01%), Wall Street Access Asset Management, LLC (<0.01%).
What percentage of Shuttle Pharmaceuticals is owned by institutions?
Institutions hold 1.9% of Shuttle Pharmaceuticals's shares outstanding; insiders hold 0.84%.
Which funds own Shuttle Pharmaceuticals?
The largest fund holders of Shuttle Pharmaceuticals are Fidelity Extended Market Index (0.31%).
What is Shuttle Pharmaceuticals's short interest?
18K shares of Shuttle Pharmaceuticals were sold short, 0.37% of the float; at the average daily volume it would take 0.54 days to cover.
Are insiders buying or selling Shuttle Pharmaceuticals?
Of the latest 1 reported insider transactions in Shuttle Pharmaceuticals (since December 13, 2023), 0 were purchases and 1 were sales.
How many shares of Shuttle Pharmaceuticals are outstanding?
Shuttle Pharmaceuticals has 4.8M shares outstanding, of which 4.8M are in the public float.