서밋 테라퓨틱스(Summit Therapeutics Inc.)
US ˙ NasdaqGM ˙ US86627T1088

SecuritySMMT / Summit Therapeutics Inc.
InsiderRobert W Duggan
This page shows the track record and history of DUGGAN ROBERT W insider trades in Summit Therapeutics Inc.. The SEC defines Insiders as officers, directors, or significant investors (greater than 10% ownership) in a company. It is illegal for insiders to make trades in their companies based on material, non-public information ("MNPI"). This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4.
Insider Purchases - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made by Robert W Duggan in SMMT / Summit Therapeutics Inc.. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Max
Price at
Max
Max
Profit ($)
Max Return (%)
2025-10-21 26,680 18.7400 26,680 18.7400 499,983 182 26.3800 203,835 40.77
2025-09-11 5,000 18.0700 5,000 18.0700 90,350
2025-09-10 333,394 17.6800 333,394 17.6800 5,894,406
2023-03-06 376,489,880 1.0500 376,489,880 1.0500 395,314,374
2022-08-16 94,849,203 0.9700 94,849,203 0.9700 92,003,727
2021-05-12 11,365,921 5.2400 11,365,921 5.2400 59,557,426
2020-11-06 14,071,856 3.3400 14,071,856 3.3400 46,999,999

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

SMMT / Summit Therapeutics Inc. Insider Trades
Insider Sales - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made by Robert W Duggan in SMMT / Summit Therapeutics Inc.. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Min
Price at
Min
Max Loss
Avoided ($)
Max Loss
Avoided (%)
There are no known unplanned open-market trades for this insider

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

SMMT / Summit Therapeutics Inc. Insider Trades
Insider Transaction History
File
Date
Trade
Date
Form Insider Ticker Security Title Code 10b5-1 Direct Exercise
Price
Unit
Price
Units
Changed
Value
Changed (1K)
Remaining
Options
Remaining
Shares
2026-06-04 2026-06-04 4 DUGGAN ROBERT W By the Mahkam Zanganeh Revocable Trust, with the Spouse of Reporting Person as Trustee SMMT Common Stock P - Purchase I 14.6000 100,000 1,460 25,824,474
2025-10-23 2025-10-21 4 DUGGAN ROBERT W Immediate family member of Spouse SMMT Common Stock P - Purchase I 18.7400 26,680 500 76,680
2025-10-23 2025-10-21 4 DUGGAN ROBERT W By the Mahkam Zanganeh Revocable Trust, with the Spouse of Reporting Person as Trustee SMMT Common Stock A - Award I 18.7400 266,808 5,000 25,724,474
2025-10-23 2025-10-21 4 DUGGAN ROBERT W SMMT Common Stock A - Award D 18.7400 13,980,789 262,000 570,073,879
2025-09-11 2025-09-11 4 DUGGAN ROBERT W SMMT Common Stock P - Purchase D 18.0700 5,000 90 556,093,090
2025-09-11 2025-09-10 4 DUGGAN ROBERT W SMMT Common Stock P - Purchase D 17.6800 333,394 5,894 556,088,090
2025-06-02 2025-05-30 4 DUGGAN ROBERT W SMMT Common Stock M - Exercise D 2.6400 74,545 197 555,754,696
2025-04-09 2025-04-08 4 DUGGAN ROBERT W SMMT Common Stock X - Other D 1.5800 3,985,055 6,296 555,680,151
2024-09-13 2024-09-11 4 DUGGAN ROBERT W SMMT Common Stock A - Award D 22.7000 3,325,991 75,500 551,695,096
2023-03-08 2023-03-06 4 DUGGAN ROBERT W SMMT Common Stock P - Purchase D 1.0500 376,489,880 395,314 552,354,161
2022-12-08 2022-12-06 4 DUGGAN ROBERT W SMMT Common Stock J - Other D 9,346,434 171,879,226
2022-08-18 2022-08-16 4 DUGGAN ROBERT W SMMT Common Stock P - Purchase D 0.9700 94,849,203 92,004 162,532,792
2022-05-25 2022-05-23 4 DUGGAN ROBERT W SMMT Common Stock J - Other D 21,135 67,683,589
2021-05-14 2021-05-12 4 DUGGAN ROBERT W SMMT Common Stock P - Purchase D 5.2400 11,365,921 59,557 67,662,454
2020-11-10 2020-11-06 4 DUGGAN ROBERT W SMMT Common Stock P - Purchase D 3.3400 14,071,856 47,000 56,296,533
2020-10-06 2020-10-02 4 DUGGAN ROBERT W SMMT Common Stock A - Award D 3.34 9,730,539 9,730,539
2020-09-18 3 DUGGAN ROBERT W SMMT Common Stock D 42,224,677
P
공개 시장에서 또는 사적으로 비파생증권 또는 파생증권 매입
S
공개 시장에서 또는 사적으로 비파생증권 또는 파생증권 매각
A
자사로부터 유가증권(옵션 등)을 보조, 지급 또는 기타 취득
C
파생상품 전환
D
자사에게 유가증권을 매각 또는 양도
F
기업으로부터 인도 받은 유가증권의 일부를 사용한 행사 가격 또는 조세 채무의 지급
G
내부자에 의한 또는 내부자에게 증권 증여
K
지분스왑 및 유사 위험 회피거래
M
자사로부터 인도 받은 파생증권(옵션 등)의 행사 또는 전환
V
보고서 양식 4에 자진 신고된 거래
J
기타 (거래 내용을 설명하는 각주와 동반)