Summary
Updated Aug 31, 2026
Theresa Margaret Ms Bruce is Chief Operating Officer of NuCana plc (NCNA). 1 SEC Form 4 filing on record, dated 16 April 2026.
Trading Pattern
InsiderAlpha's records for Theresa Margaret Ms Bruce go back to 2026: 1 primary Form 4 filing, an average of 1.0 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Most Active Insiders Right Now
Theresa Margaret Ms Bruce has no co-filers on record, so these are insiders with the largest open-market activity across the market in the last 90 days.
- James F. Wirth - $2.86B of IHT open-market activity in the last 90 days
- AI Alpine (Luxembourg) S.a.r.l. - $2.69B of INIO open-market activity in the last 90 days
- SGF FANG Holdings, LP - $2.04B of FANG open-market activity in the last 90 days
- James Michael Chu - $1.10B of BIRK open-market activity in the last 90 days
- SUMITOMO MITSUI FINANCIAL GROUP, INC. - $995.27M of JEF open-market activity in the last 90 days
- Uber Technologies, Inc - $950.85M of AUR open-market activity in the last 90 days
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Theresa Margaret Ms Bruce?
Theresa Margaret Ms Bruce is a corporate insider, tracked as Chief Operating Officer of NuCana plc (NCNA). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Theresa Margaret Ms Bruce last file a Form 4?
The only primary Form 4 on record is dated 16 April 2026.
Where can I see all of Theresa Margaret Ms Bruce's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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