Mahkam Zanganeh insider trades: Summit Therapeutics (SMMT) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Mahkam reports to the SEC
Open-market buys and sales
31 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jun 12, 2026 | SMMT | ↑ Buy | 3,810,000 | $13.12 | $50.0M | By Spouse | Jun 12, 2026 (0d) |
| Jun 4, 2026 | SMMT | ↑ Buy | 100,000 | $14.60 | $1.5M | By the Mahkam Zanganeh Revocable Trust, | Jun 4, 2026 (0d) |
| Oct 21, 2025 | SMMT | ↑ Buy | 26,680 | $18.74 | $500K | Immediate family member | Oct 23, 2025 (2d) |
| Sep 11, 2025 | SMMT | ↑ Buy | 338,394 | $17.69 | $6.0M | By Spouse | Sep 11, 2025 (0d) |
| Mar 27, 2024 | SMMT | ↑ Buy | 50,000 | $3.73 | $187K | Immediate family member | Mar 27, 2024 (0d) |
| Mar 27, 2024 | SMMT | ↑ Buy | 34,321 | $3.72 | $128K | By the Mahkam Zanganeh Revocable Trust, | Mar 27, 2024 (0d) |
| Mar 27, 2024 | SMMT | ↑ Buy | 26,000 | $3.72 | $97K | Direct | Mar 27, 2024 (0d) |
| Dec 12, 2023 | SMMT | ↑ Buy | 5,000 | $2.07 | $10K | Direct | Dec 13, 2023 (1d) |
| Mar 8, 2023 | SMMT | ↑ Buy | 15,973,743 | $1.05 | $16.8M | Direct | Mar 8, 2023 (0d) |
| Mar 8, 2023 | SMMT | ↑ Buy | 6,748,629 | $1.05 | $7.1M | By the Shaun Zanganeh Irrevocable Trust, | Mar 8, 2023 (0d) |
| Mar 8, 2023 | SMMT | ↑ Buy | 804,672 | $1.05 | $845K | By the Mahkam Zanganeh Revocable Trust, | Mar 8, 2023 (0d) |
| Aug 16, 2022 | SMMT | ↑ Buy | 4,593,777 | $0.97 | $4.5M | By the Mahkam Zanganeh Revocable Trust, | Aug 18, 2022 (2d) |
| Aug 16, 2022 | SMMT | ↑ Buy | 1,030,925 | $0.97 | $1000K | By the Shaun Zanganeh Irrevocable Trust, | Aug 18, 2022 (2d) |
| Aug 16, 2022 | SMMT | ↑ Buy | 184,430 | $0.97 | $179K | Direct | Aug 18, 2022 (2d) |
| May 12, 2021 | SMMT | ↑ Buy | 389,077 | $5.24 | $2.0M | By the Mahkam Zanganeh Revocable Trust, | May 14, 2021 (2d) |
| Jun 23, 2020 | PLSE | ↑ Buy | 1,193 | $10.70 | $13K | Immediate Family Member 1 | Jun 25, 2020 (2d) |
| Jun 17, 2020 | PLSE | ↑ Buy | 7,950 | $7.01 | $56K | Immediate Family Member 1 | Jun 19, 2020 (2d) |
| Dec 13, 2017 | PLSE | ↑ Buy | 1,100 | $23.98 | $26K | Dependent Minor | Dec 15, 2017 (2d) |
| Dec 12, 2017 | PLSE | ↑ Buy | 4,000 | $23.07 | $92K | Dependent Minor | Dec 13, 2017 (1d) |
| Sep 18, 2017 | PLSE | ↑ Buy | 29,775 | $13.36 | $398K | Direct | Sep 18, 2017 (0d) |
| Aug 3, 2017 | PLSE | ↑ Buy | 23,790 | $24.16 | $575K | Direct | Aug 4, 2017 (1d) |
| Aug 3, 2017 | PLSE | ↑ Buy | 5,000 | $23.00 | $115K | Dependent Minor | Aug 4, 2017 (1d) |
| May 11, 2017 | PLSE | ↑ Buy | 15,000 | $20.84 | $313K | Direct | May 11, 2017 (0d) |
| May 10, 2017 | PLSE | ↑ Buy | 38,760 | $20.36 | $789K | Dependent Minor | May 11, 2017 (1d) |
| Mar 20, 2017 | PLSE | ↑ Buy | 13,240 | $23.66 | $313K | Dependent Minor | Mar 20, 2017 (0d) |
| Mar 20, 2017 | PLSE | ↑ Buy | 5,000 | $22.47 | $112K | Direct | Mar 20, 2017 (0d) |
| Feb 15, 2017 | PLSE | ↑ Buy | 13,000 | $11.97 | $156K | Dependent Minor | Feb 22, 2017 (7d) |
| Mar 11, 2015 | PCYC | ↓ Sell | 30,000 | $254.11 | $7.6M | Direct | Mar 13, 2015 (2d) |
| Nov 12, 2014 | PCYC | ↓ Sell | 30,482 | $134.69 | $4.1M | Direct | Nov 12, 2014 (0d) |
| Sep 4, 2014 | PCYC | ↓ Sell | 12,000 | $121.75 | $1.5M | Direct | Sep 4, 2014 (0d) |
| Dec 16, 2013 | PCYC | ↓ Sell | 20,000 | $107.55 | $2.2M | Direct | Dec 18, 2013 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other SMMT insiders
Open-market trades in the last 12 months
About Mahkam Zanganeh's insider trades
Mahkam Zanganeh is Co-Chief Executive Officer at Summit Therapeutics (SMMT). Since Dec 16, 2013, Mahkam has reported 27 open-market purchases worth $93.7M and 4 sales worth $15.3M on SEC Form 4. In the last 12 months: 2 buys ($51.4M).
Their filings also include grants and awards (28 filings), option exercises (16 filings), other transactions (9 filings), shares returned to the company (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every SMMT insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.