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SC Filed 2020-01-16 Event — SEC 0000921895-20-000126 →

DUGGAN ROBERT W → Summit Therapeutics plc SMMT

Stake: — Shares: —

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)
24 transactions
24 buys · 0 sales · 0 awards/exercises
Issuer Cluster
15 13D/G filings on this issuer
14 other filings besides this one
Filer Track Record
18 filings by this filer
17 other filings in the data moat
Short Interest · settle 2026-07-15
DTC 11.02
37,327,940 shares short · -6.3% vs prior

Form 4 Insider Transactions · last 365d

DateInsiderRoleTypeSharesPriceValue
2026-01-08 Anand Bhaskar officer Award 30,000 $18.83 $565K
2026-01-02 Zanganeh Mahkam director, officer, 10%+ owner Award 11,232 $17.52 $197K
2026-01-02 DUGGAN ROBERT W director, officer, 10%+ owner Award 11,232 $17.52 $197K
2026-01-02 Booth Robert F. director Award 35,000 $17.52 $613K
2026-01-02 Xia Yu director Award 35,000 $17.52 $613K
2026-01-02 Huber Jeff director Award 35,000 $17.52 $613K
2026-01-02 Ronaghi Mostafa director Award 35,000 $17.52 $613K
2026-01-02 Clark Kenneth A director Award 35,000 $17.52 $613K
2026-01-02 Cesano Alessandra director Award 35,000 $17.52 $613K
2026-01-02 Huber Jeff director Award 9,885 $17.52 $173K
2026-01-02 Clark Kenneth A director Award 17,796 $17.52 $312K
2026-01-02 Cesano Alessandra director Award 3,219 $17.52 $56K
2025-10-21 Xia Yu director Buy 533,617 $18.74 $10.00M
2025-10-21 Anand Bhaskar officer Award 26,680 $18.74 $500K
2025-10-21 Soni Manmeet Singh director, officer Award 53,361 $18.74 $1000K
2025-10-21 DUGGAN ROBERT W director, officer, 10%+ owner Award 13,980,789 $18.74 $262.00M
2025-10-21 Zanganeh Mahkam director, officer, 10%+ owner Award 266,808 $18.74 $5.00M
2025-10-21 DUGGAN ROBERT W director, officer, 10%+ owner Award 266,808 $18.74 $5.00M
2025-10-21 DUGGAN ROBERT W director, officer, 10%+ owner Buy 26,680 $18.74 $500K
2025-09-18 Anand Bhaskar officer Award 50,000 $19.23 $962K
2025-09-11 DUGGAN ROBERT W director, officer, 10%+ owner Buy 5,000 $18.07 $90K
2025-09-11 Zanganeh Mahkam director, officer, 10%+ owner Buy 5,000 $18.07 $90K
2025-09-10 Zanganeh Mahkam director, officer, 10%+ owner Buy 333,394 $17.68 $5.89M
2025-09-10 DUGGAN ROBERT W director, officer, 10%+ owner Buy 333,394 $17.68 $5.89M

Other 13D/G Filings on Summit Therapeutics plc

FiledFormFilerStakeShares
2023-03-13 SC Zanganeh Mahkam — — view →
2022-08-18 SC DUGGAN ROBERT W — — view →
2021-05-14 SC DUGGAN ROBERT W — — view →
2021-04-22 SC DUGGAN ROBERT W — — view →
2021-03-26 SC DUGGAN ROBERT W — — view →
2020-11-25 SC Zanganeh Maky — — view →
2020-11-10 SC DUGGAN ROBERT W — — view →
2020-11-10 SC Zanganeh Maky — — view →
2020-10-07 SC DUGGAN ROBERT W — — view →
2020-05-15 SC LANSDOWNE PARTNERS (UK) LLP — — view →
2020-03-26 SC LANSDOWNE PARTNERS (UK) LLP — — view →
2019-12-27 SC DUGGAN ROBERT W — — view →
2019-01-11 SC LANSDOWNE PARTNERS (UK) LLP — — view →
2018-01-30 SC LANSDOWNE PARTNERS (UK) LLP — — view →

Other Filings by DUGGAN ROBERT W

FiledFormIssuerStakeShares
2026-05-13 SCHEDULE 13D/A Pulse Biosciences, Inc. PLSE — 49,706,423 view →
2024-07-08 SC PULSE BIOSCIENCES, INC. PLSE — — view →
2022-08-18 SC Summit Therapeutics Inc. SMMT — — view →
2021-07-02 SC Pulse Biosciences, Inc. PLSE — — view →
2021-05-14 SC Summit Therapeutics Inc. SMMT — — view →
2021-05-11 SC Pulse Biosciences, Inc. PLSE — — view →
2021-04-22 SC Summit Therapeutics Inc. SMMT — — view →
2021-03-26 SC Summit Therapeutics Inc. SMMT — — view →
2020-11-10 SC Summit Therapeutics Inc. SMMT — — view →
2020-10-07 SC Summit Therapeutics Inc. SMMT — — view →
2019-12-27 SC Summit Therapeutics plc SMMT — — view →
2019-04-05 SC Achaogen, Inc. — — view →
2019-03-20 SC Achaogen, Inc. — — view →
2019-01-18 SC Aurinia Pharmaceuticals Inc. AUPH — — view →
2018-05-07 SC Achaogen Inc — — view →
2018-04-24 SC Achaogen Inc — — view →
2018-03-14 SC Achaogen Inc — — view →

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