Zanganeh Mahkam
Co-Chief Executive Officer
PurchaseAlert
- Shares
- 3,810,000
- Price
- $13.12
- Value
- $49,987,200
SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•23 filings
SMMT
Summit Therapeutics Inc.
No net buying or selling imbalance over the last 3 months
No net buyers or sellers account for the net balance. There is no cluster of three distinct buyers within 30 days. We found 6 CEO/CFO purchases over 12 months.
How to read this signal
Only open-market P purchases and S sales count toward the signal. Vesting, options, taxes and gifts remain in the source data but do not trigger alerts. Rule 10b5-1 trades are shown as informational.
3-month balance
$0.00
0 buyers · 0 sellers
12-month purchases
$103,616,650
3 distinct insiders
12-month sales
$0.00
0 distinct insiders
Highlighted alerts
13
0 Rule 10b5-1 trades treated as informational
Buying cluster · 30 days
Fewer than three distinct buyers
CEO/CFO purchases · 12 months
6 executive purchases found
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Form 4 raw → Raspberry
The value is in what we do not call a signal.
The SEC XML stores every transaction. Raspberry keeps that evidence, reads the footnotes and separates voluntary open-market activity from vesting, option exercises, gifts, tax withholding, stock purchase and dividend reinvestment plans and pre-programmed 10b5-1 trades.
34
Raw transactions
Everything returned by the filing
13
Voluntary view
P/S trades after deterministic checks
21
Administrative noise
Stored, never alerted
0
10b5-1
Shown as informational
SEC ownership XML facts
- Code
- A
- Shares
- 100,000
- Price
- $0.00
- Footnotes
- 2
Restricted stock units granted under the Issuer's Amended and Restated 2020 Stock Incentive Plan. The restricted stock units vest on October 8, 2029, subject to the Reporting Person continuing his employment with the Issuer, and will entitle the Reporting Person to one share of the Issuer's common stock for each restricted stock unit that vests. Holdings include shares previously acquired through exempt transactions pursuant to the Issuer's employee stock purchase plan.
Recent transactions
Voluntary purchases and sales; administrative noise stays hidden.
DUGGAN ROBERT W
Co-Chief Executive Officer
PurchaseAlert
- Shares
- 3,810,000
- Price
- $13.12
- Value
- $49,987,200
Soni Manmeet Singh
COO and CFO
PurchaseAlert
- Shares
- 25,000
- Price
- $14.43
- Value
- $360,750
Soni Manmeet Singh
COO and CFO
PurchaseAlert
- Shares
- 25,000
- Price
- $14.46
- Value
- $361,500
Zanganeh Mahkam
Co-Chief Executive Officer
PurchaseAlert
- Shares
- 100,000
- Price
- $14.60
- Value
- $1,460,000
DUGGAN ROBERT W
Co-Chief Executive Officer
PurchaseAlert
- Shares
- 100,000
- Price
- $14.60
- Value
- $1,460,000
Xia Yu
Director
PurchaseAlert
- Shares
- 533,617
- Price
- $18.74
- Value
- $9,999,983
Zanganeh Mahkam
Co-Chief Executive Officer
PurchaseAlert
- Shares
- 26,680
- Price
- $18.74
- Value
- $499,983
DUGGAN ROBERT W
Co-Chief Executive Officer
PurchaseAlert
- Shares
- 26,680
- Price
- $18.74
- Value
- $499,983
Zanganeh Mahkam
Co-Chief Executive Officer
PurchaseAlert
- Shares
- 5,000
- Price
- $18.07
- Value
- $90,350
DUGGAN ROBERT W
Co-Chief Executive Officer
PurchaseAlert
- Shares
- 5,000
- Price
- $18.07
- Value
- $90,350
Zanganeh Mahkam
Co-Chief Executive Officer
PurchaseAlert
- Shares
- 333,394
- Price
- $17.68
- Value
- $5,894,406
DUGGAN ROBERT W
Co-Chief Executive Officer
PurchaseAlert
- Shares
- 333,394
- Price
- $17.68
- Value
- $5,894,406
| Date | Insider | Transaction | Shares | Price | Value | Reading |
|---|---|---|---|---|---|---|
| Jun 12, 2026 | Zanganeh Mahkam Co-Chief Executive Officer | Purchase | 3,810,000 | $13.12 | $49,987,200 | |
| Jun 12, 2026 | DUGGAN ROBERT W Co-Chief Executive Officer | Purchase | 3,810,000 | $13.12 | $49,987,200 | |
| Jun 04, 2026 | Soni Manmeet Singh COO and CFO | Purchase | 25,000 | $14.43 | $360,750 | |
| Jun 04, 2026 | Soni Manmeet Singh COO and CFO | Purchase | 25,000 | $14.46 | $361,500 | |
| Jun 04, 2026 | Zanganeh Mahkam Co-Chief Executive Officer | Purchase | 100,000 | $14.60 | $1,460,000 | |
| Jun 04, 2026 | DUGGAN ROBERT W Co-Chief Executive Officer | Purchase | 100,000 | $14.60 | $1,460,000 | |
| Oct 21, 2025 | Xia Yu Director | Purchase | 533,617 | $18.74 | $9,999,983 | |
| Oct 21, 2025 | Zanganeh Mahkam Co-Chief Executive Officer | Purchase | 26,680 | $18.74 | $499,983 | |
| Oct 21, 2025 | DUGGAN ROBERT W Co-Chief Executive Officer | Purchase | 26,680 | $18.74 | $499,983 | |
| Sep 11, 2025 | Zanganeh Mahkam Co-Chief Executive Officer | Purchase | 5,000 | $18.07 | $90,350 | |
| Sep 11, 2025 | DUGGAN ROBERT W Co-Chief Executive Officer | Purchase | 5,000 | $18.07 | $90,350 | |
| Sep 10, 2025 | Zanganeh Mahkam Co-Chief Executive Officer | Purchase | 333,394 | $17.68 | $5,894,406 | |
| Sep 10, 2025 | DUGGAN ROBERT W Co-Chief Executive Officer | Purchase | 333,394 | $17.68 | $5,894,406 |
“Alert” means a voluntary, unscheduled transaction according to the filing; it is not an investment recommendation. Official source: SEC EDGAR.