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Summit Therapeutics Inc.

SMMT Net buying

CIK 0001599298 #943 in the set updated 17 Sep 2026

Bought (120 mo)

$758.92M

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

Sold (120 mo)

$321.46K

$0.00 on a plan · $321.46K straight out of an exercise

Sold at will

$0.00

0 of 5 sales

Net

+$758.60M

+$758.92M against sales at will

By person

8 insiders · 48 transactions

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

DUGGAN ROBERT W

Co-Chief Executive Officer

$651.81M (9)

—

+$651.81M

599,708,353

75.18%

$7.87B

+786.4%

Zanganeh Mahkam

Co-Chief Executive Officer

$90.73M (17)

—

+$90.73M

574,404,693

72.00%

$7.54B

+10.4%

Xia Yu

Director

$10.00M (1)

—

+$10.00M

32,057,147

4.02%

$420.59M

+1.7%

Soni Manmeet Singh

COO and CFO

$5.72M (3)

—

+$5.72M

3,123,603

0.3916%

$40.98M

—

Dhingra Ankur

Chief Financial Officer

$660.56K (6)

—

+$660.56K

393,015

0.0493%

$5.16M

+881.6%

Powell David Jonathan

Chief Scientific Officer

—

$321.46K (5) scheduled

−$321.46K

0.0000%

$0.00

—

Anand Bhaskar

Chief Accounting Officer

—

159,751

0.0200%

$2.10M

+43.9%

Huber Jeff

Director

—

44,052

0.0055%

$577.96K

—

Individual transactions

Nothing of that kind in this period.

What was left out

Form 4 filings counted 105

Amendments (4/A) skipped 2

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 5

Sales at will 0

Transactions with no price 0

Shares from compensation/vesting 51,110,923

History held since 6 Oct 2020