13D·WATCH Activist + Insider Intelligence Live feed Blog About Pilot
ISSUER PROFILE · CIK 0001709626 · CUSIP 67022C205

NuCana plcNCNA

7 13D/G filings 2 distinct filers 0 insider transactions (365d)

Post-Filing Returns · across 2 activist filings on this issuer

Median 30d
avg —
Median 60d
avg —
Median 90d
avg —
Median 180d
avg —

Returns measured from each activist filing's date_of_event, split + dividend adjusted via Yahoo Finance.

Cross-Reference Snapshot

Activist filings
7
2 SCHEDULE · 5 SC
Distinct filers
2
multi-activist cluster
Insiders (365d)
0
0 buys · 0 sales
Latest short DTC
3.30
as of 2026-05-29

13D/G Filings Timeline · 7 total

FiledFormFilerStakeSharesIntent
2025-02-25 SCHEDULE Sofinnova Venture Partners VIII, L.P. 10.00% 51,030 view →
2025-02-14 SCHEDULE SOFINNOVA CAPITAL VI FCPR 5.10% 4,987,975 view →
2022-02-28 SC Sofinnova Venture Partners VIII, L.P. view →
2021-06-15 SC SOFINNOVA CAPITAL VI FCPR view →
2021-02-02 SC SOFINNOVA CAPITAL VI FCPR view →
2020-10-28 SC SOFINNOVA CAPITAL VI FCPR view →
2019-02-14 SC SOFINNOVA CAPITAL VI FCPR view →

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-05-29 127,295 3.30 -23.8%
2026-05-15 167,041 3.51 -1.3%
2026-04-30 169,168 7.20 +0.0%
2026-04-15 169,130 3.49 +0.4%
2026-03-31 168,450 3.17 +5.3%
2026-03-13 160,023 3.22 -9.3%
2026-02-27 176,475 8.50 -6.2%
2026-02-13 188,048 3.62 -11.4%
2026-01-30 212,167 2.51 +8.1%
2026-01-15 196,325 2.03 +0.5%
2025-12-31 195,364 3.16 -5.5%
2025-12-15 206,809 3.91 +8.8%

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