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Summit Therapeutics Inc.

SMMT Net buying

CIK 0001599298 #943 in the set updated 17 Sep 2026

Bought (12 mo)

$114.62M

out of their own pocket, the only kind of buying there is

Sold (12 mo)

$0.00

$0.00 on a plan · $0.00 straight out of an exercise

Sold at will

$0.00

0 of 0 sales

Net

+$114.62M

+$114.62M against sales at will

By person

5 insiders · 9 transactions

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

DUGGAN ROBERT W

Co-Chief Executive Officer

$51.95M (3)

—

+$51.95M

599,708,353

75.18%

$7.87B

+3.9%

Zanganeh Mahkam

Co-Chief Executive Officer

$51.95M (3)

—

+$51.95M

573,883,879

71.94%

$7.53B

+4.2%

Xia Yu

Director

$10.00M (1)

—

+$10.00M

32,057,147

4.02%

$420.59M

+1.7%

Soni Manmeet Singh

COO and CFO

$722.25K (2)

—

+$722.25K

3,123,603

0.3916%

$40.98M

+3.4%

Anand Bhaskar

Chief Accounting Officer

—

159,751

0.0200%

$2.10M

+20.0%

Individual transactions

Nothing of that kind in this period.

What was left out

Form 4 filings counted 20

Amendments (4/A) skipped 0

Filings about a different issuer 0

Unreadable filings 0

Joint filings 0

Sales on a Rule 10b5-1 plan 0

Sales straight out of an exercise 0

Sales at will 0

Transactions with no price 0

Shares from compensation/vesting 28,575,235

History held since 6 Oct 2020