SC Filed 2021-03-26 Event — SEC 0000921895-21-000866 →

DUGGAN ROBERT W → Summit Therapeutics Inc. SMMT

Stake: — Shares: —

Composite Decision Signal · PASS (LOW BASE-RATE EDGE) Conviction Score: 21/100

Passive Schedule 13G filer baseline
Elevated short days-to-cover (7.0 DTC)

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)

12 transactions

12 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 2026-10-15

DTC 7.02

40,896,653 shares short · -0.6% vs prior

Form 4 Insider Transactions · last 365d

Date	Insider	Role	Type	Shares	Price	Value
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

Other 13D/G Filings on Summit Therapeutics Inc.

Filed	Form	Filer	Stake	Shares
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 →
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 →
2020-01-16	SC	DUGGAN ROBERT W	—	—	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

Filed	Form	Issuer	Stake	Shares
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 →
2020-11-10	SC	Summit Therapeutics Inc. SMMT	—	—	view →
2020-10-07	SC	Summit Therapeutics Inc. SMMT	—	—	view →
2020-01-16	SC	Summit Therapeutics plc 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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