NuCana plc (NCNA) Ownership
NCNA ownership summary
as of October 17, 2026- Institutions
- 2.6% of shares outstanding
- Insiders
- 0.00% of shares outstanding
- Shares outstanding
- 4.2M
- Float
- 4.3M shares available to trade
- Short interest
- 2.40% 100K shares short
- Days to cover
- 0.53 short interest down 6.7% vs prior month
- Institutions 2.60%
- Insiders 0.00%
- Other investors 97.40%
NCNA top institutional holders
15 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | StoneX Group Inc | 1.13% | 47K | $46,573 | +47,043 (0.0%) | June 30, 2026 |
| 2 | Citadel Advisors Llc | 0.65% | 27K | $26,828 | +13,244 (+95.6%) | June 30, 2026 |
| 3 | HRT FINANCIAL LLC | 0.41% | 17K | $16,701 | +16,870 (0.0%) | June 30, 2026 |
| 4 | Glass Jacobson Investment Advisors LLC | 0.36% | 15K | $14,850 | — | June 30, 2026 |
| 5 | Rhumbline Advisers | 0.11% | 4,698 | $4,651 | +976 (+26.2%) | June 30, 2026 |
| 6 | Integrated Wealth Concepts LLC | <0.01% | 188 | $186 | +188 (0.0%) | June 30, 2026 |
| 7 | Citigroup Inc | <0.01% | 188 | $186 | +188 (0.0%) | June 30, 2026 |
| 8 | Caitong International Asset Management Co., Limited. | <0.01% | 5 | $5 | +3 (+150.0%) | June 30, 2026 |
| 9 | Acadian Asset Management LLC | 0.00% | 2 | $2 | — | June 30, 2026 |
| 10 | Morgan Stanley - Brokerage Accounts | 0.00% | 2 | $2 | — | June 30, 2026 |
| 11 | SBI Securities Co Ltd | 0.00% | 1 | $1 | +1 (0.0%) | June 30, 2026 |
| 12 | Jane Street Group LLC | 0.00% | — | — | −10,511 (−100.0%) | June 30, 2026 |
| 13 | UBS Group AG | 0.00% | — | — | −3,653 (−100.0%) | March 31, 2026 |
| 14 | The Carlyle Group Inc | 0.00% | — | — | −133,333 (−100.0%) | March 31, 2026 |
| 15 | Virtu Financial LLC | 0.00% | — | — | −13,433 (−100.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 15, 8 holders added 79K shares and 4 cut 161K.
NCNA top mutual fund and ETF holders
1 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | LUNIS Biotech Growth Opp Fd I a | 0.15% | 8,897 | $8,808 | — | September 30, 2024 |
Funds report holdings monthly or quarterly; dates differ by fund.
NCNA shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns NCNA
Institutional investors own 2.6% of NuCana's shares and insiders 0.00%. The largest holder is StoneX Group Inc with 1.13% of the shares (47K), as of June 30, 2026. Among the top 15 institutions, 8 added shares and 4 reduced their stake in the latest filings. Short interest is 2.40% of the float, or 0.53 days of average trading volume. The share count rose 22.7% since 2015.
Related: NCNA analyst forecast, NCNA key metrics. See the NCNA stock overview for the latest quote and news.
NCNA ownership FAQ
Who owns the most NuCana stock?
The largest shareholders of NuCana are StoneX Group Inc (1.13%), Citadel Advisors Llc (0.65%), HRT FINANCIAL LLC (0.41%), Glass Jacobson Investment Advisors LLC (0.36%), Rhumbline Advisers (0.11%).
What percentage of NuCana is owned by institutions?
Institutions hold 2.6% of NuCana's shares outstanding; insiders hold 0.00%.
Which funds own NuCana?
The largest fund holders of NuCana are LUNIS Biotech Growth Opp Fd I a (0.15%).
What is NuCana's short interest?
100K shares of NuCana were sold short, 2.40% of the float; at the average daily volume it would take 0.53 days to cover.
How many shares of NuCana are outstanding?
NuCana has 4.2M shares outstanding, of which 4.3M are in the public float.