3reverse splits
1-for-2,998 cumulative
31.8M → 20.8Bshares issued (XBRL history)
Quietfiling state
from EDGAR

Case Notes

Nucana Plc has 3 reverse splits on record — cumulative 1-for-2,998. No twelve-month share-count comparison is available in the XBRL record.

No stress-language filings on record in our dataset.

The current filing record is quiet: nothing newly registered, no recent stress flags. In our dataset, quiet is where every cycle began — the absence of filings is itself a data point, not a clearance. This record will be updated as new filings land on EDGAR.

Share Count Over Time

XBRL cover-page share counts from SEC EDGAR filings. Amber dashed lines mark reverse-split dates. 3 reverse splits on record.

Reverse Split Log

Each event consolidates shares — fewer shares, same market cap. Source: EDGAR corporate actions.

2024-04-161-for-21.9
2024-08-301-for-0.5
2025-08-111-for-136.8

Cumulative effective ratio: 1-for-2,998— a share held at inception is now worth 1/2,998 of its original fraction.

424B Supply Pulse

Prospectus supplements (424B5) filed registering shares for resale — each bar is one month with a filing. Bars above average signal active distribution windows. Source: SEC EDGAR.

09 03 10 05 06
2020-092024-032024-102025-052025-06

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