Insider · CIK 0001507650
Mahkam Zanganeh
Files at SMMT (Summit Therapeutics Inc.), PLSE (Pulse Biosciences, Inc.). First filing Dec 13, 2023, latest Jun 12, 2026.
In brief
Mahkam Zanganeh files SEC Form 4 as CEO, director, 10% owner and president at SMMT (Summit Therapeutics Inc.), and also at PLSE (Pulse Biosciences, Inc.). Since Dec 13, 2023, Mahkam Zanganeh has reported 6 open-market buys worth $58M and 0 open-market sells worth $0, the latest filed on Jun 12, 2026.
After Mahkam Zanganeh's past buys, the stock beat the S&P 500 by a median 12.7% over six months (n = 3), and 67% of those buys were ahead of the index at six months. InsiderTell labels that a strong record.
The newest scored trade: bought $50M of SMMT on Jun 12, 2026, filed Jun 12, 2026, scored 83 (strong). In the last 12 months: 3 buys worth $52M and 0 sells worth $0.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
SMMT: Summit Therapeutics Inc.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 83Strong | Summit Therapeutics Inc. | $50M 3,810,000 shares | +1% | +7% from low-52% from high | |
| 78Notable | Summit Therapeutics Inc. | $1.5M 100,000 shares | +0% | +7% from low-49% from high | |
| 73Notable | Summit Therapeutics Inc. | $500k 26,680 shares | +53% | - | |
| 53Moderate | Summit Therapeutics Inc. | $6.0M 338,394 shares | +0% | - | |
| 61Notable | Summit Therapeutics Inc. | $411k 110,321 shares | - | +183% from low-26% from high | |
| 41Moderate | Summit Therapeutics Inc. | $10k 5,000 shares | +1% | +67% from low-59% from high |
Transactions
Every row this insider has filed, 46 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jun 11, 2026 | PLSE Pulse Biosciences, Inc. | AGrant or award Stock Option (right to buy)derivative | +30,000 | $0.00 | $0 | 30,000 | Jun 15, 2026 |
| Jun 11, 2026 | PLSE Pulse Biosciences, Inc. | AGrant or award Stock Option (right to buy)derivative | +14,504 | $0.00 | $0 | 14,504 | Jun 15, 2026 |
| Jun 12, 2026 | SMMT Summit Therapeutics Inc. | POpen-market purchase Common Stockindirect: By Spouse | +3,810,000 | $13.12 | $50M | 573,883,879 | Jun 12, 2026 |
| Jun 4, 2026 | SMMT Summit Therapeutics Inc. | POpen-market purchase Common Stockindirect: By the Mahkam Zanganeh Revocable Trust, with the Reporting Person as Trustee | +100,000 | $14.60 | $1.5M | 25,824,474 | Jun 4, 2026 |
| Jan 2, 2026 | SMMT Summit Therapeutics Inc. | AGrant or award Stock Option (right to buy)derivativeindirect: By Spouse | +11,232 | $8.76 | $98k | 11,232 | Jan 6, 2026 |
| Oct 21, 2025 | SMMT Summit Therapeutics Inc. | AGrant or award Common Stockindirect: By the Mahkam Zanganeh Revocable Trust, with the Reporting Person as Trustee | +266,808 | $18.74 | $5.0M | 25,724,474 | Oct 23, 2025 |
| Oct 21, 2025 | SMMT Summit Therapeutics Inc. | POpen-market purchase Common Stockindirect: Immediate family member | +26,680 | $18.74 | $500k | 76,680 | Oct 23, 2025 |
| Oct 21, 2025 | SMMT Summit Therapeutics Inc. | AGrant or award Common Stockindirect: By Spouse | +13,980,789 | $18.74 | $262M | 570,073,879 | Oct 23, 2025 |
| Sep 10, 2025 | SMMT Summit Therapeutics Inc. | POpen-market purchase Common Stockindirect: By Spouse | +333,394 | $17.68 | $5.9M | 556,088,090 | Sep 11, 2025 |
| Sep 11, 2025 | SMMT Summit Therapeutics Inc. | POpen-market purchase Common Stockindirect: By Spouse | +5,000 | $18.07 | $90k | 556,093,090 | Sep 11, 2025 |
| Aug 15, 2025 | PLSE Pulse Biosciences, Inc. | AGrant or award Stock Option (right to buy)derivative | +30,000 | $0.00 | $0 | 30,000 | Aug 19, 2025 |
| Aug 15, 2025 | PLSE Pulse Biosciences, Inc. | AGrant or award Stock Option (right to buy)derivative | +24,134 | $0.00 | $0 | 24,134 | Aug 19, 2025 |
| May 30, 2025 | SMMT Summit Therapeutics Inc. | MOption exercise Common Stockindirect: By Spouse | +74,545 | $2.64 | $197k | 555,754,696 | Jun 2, 2025 |
| May 30, 2025 | SMMT Summit Therapeutics Inc. | MOption exercise Stock Option (right to buy)derivativeindirect: By Spouse | -74,545 | $0.00 | $0 | 0 | Jun 2, 2025 |
| Apr 29, 2025 | SMMT Summit Therapeutics Inc. | AGrant or award Stock Option (right to buy)derivative | +1,040,000 | - | - | 1,040,000 | May 1, 2025 |
| Apr 29, 2025 | SMMT Summit Therapeutics Inc. | AGrant or award Stock Option (right to buy)derivative | +400,000 | - | - | 400,000 | May 1, 2025 |
| Apr 29, 2025 | SMMT Summit Therapeutics Inc. | AGrant or award Stock Option (right to buy)derivative | +9,590,558 | - | - | 9,590,558 | May 1, 2025 |
| Apr 8, 2025 | SMMT Summit Therapeutics Inc. | XIn-the-money exercise Common Stockindirect: By Spouse | +3,985,055 | $1.58 | $6.3M | 555,680,151 | Apr 9, 2025 |
| Apr 8, 2025 | SMMT Summit Therapeutics Inc. | XIn-the-money exercise Warrant (right to buy)derivativeindirect: By Spouse | +3,985,055 | $0.00 | $0 | 0 | Apr 9, 2025 |
| Oct 3, 2024 | SMMT Summit Therapeutics Inc. | XIn-the-money exercise Common Stockindirect: By the Shaun Zanganeh Irrevocable Trust, with the Reporting Person as Trustee | +315,681 | $1.58 | $499k | 10,199,776 | Oct 3, 2024 |
| Oct 3, 2024 | SMMT Summit Therapeutics Inc. | XIn-the-money exercise Warrant (right to buy)derivativeindirect: By the Shaun Zanganeh Irrevocable Trust, with the Reporting Person as Trustee | -315,681 | $0.00 | $0 | 0 | Oct 3, 2024 |
| Sep 11, 2024 | SMMT Summit Therapeutics Inc. | AGrant or award Common Stockindirect: By the Mahkam Zanganeh Revocable Trust, with the Reporting Person as Trustee | +44,052 | $22.70 | $1000k | 24,967,852 | Sep 13, 2024 |
| Aug 23, 2024 | SMMT Summit Therapeutics Inc. | AGrant or award Performance Stock Option (right to buy)derivative | +260,000 | - | - | 260,000 | Aug 23, 2024 |
| Aug 23, 2024 | SMMT Summit Therapeutics Inc. | AGrant or award Performance Stock Option (right to buy)derivative | +100,000 | - | - | 100,000 | Aug 23, 2024 |
| Aug 23, 2024 | SMMT Summit Therapeutics Inc. | AGrant or award Performance Stock Option (right to buy)derivative | +2,397,640 | - | - | 2,397,640 | Aug 23, 2024 |
| Aug 9, 2024 | PLSE Pulse Biosciences, Inc. | AGrant or award Stock Option (right to buy)derivative | +200,000 | $0.00 | $0 | 200,000 | Aug 13, 2024 |
| Jul 3, 2024 | PLSE Pulse Biosciences, Inc. | XIn-the-money exercise Common Stock | +60,242 | - | - | 665,153 | Jul 9, 2024 |
| Jul 3, 2024 | PLSE Pulse Biosciences, Inc. | POpen-market purchase Warrant (right to buy)derivative | +30,121 | - | - | 30,121 | Jul 9, 2024 |
| Jul 3, 2024 | PLSE Pulse Biosciences, Inc. | POpen-market purchase Warrant (right to buy)derivative | +30,121 | - | - | 30,121 | Jul 9, 2024 |
| Jun 6, 2024 | PLSE Pulse Biosciences, Inc. | AGrant or award Stock Option (right to buy)derivative | +20,000 | $0.00 | $0 | 20,000 | Jun 24, 2024 |
| Jun 6, 2024 | PLSE Pulse Biosciences, Inc. | AGrant or award Stock Option (right to buy)derivative | +8,247 | $0.00 | $0 | 8,247 | Jun 24, 2024 |
| Mar 27, 2024 | SMMT Summit Therapeutics Inc. | POpen-market purchase Common Stock | +26,000 | $3.72 | $97k | 520,814 | Mar 27, 2024 |
| Mar 27, 2024 | SMMT Summit Therapeutics Inc. | POpen-market purchase Common Stockindirect: By the Mahkam Zanganeh Revocable Trust, with the Reporting Person as Trustee | +34,321 | $3.72 | $128k | 24,923,800 | Mar 27, 2024 |
| Mar 26, 2024 | SMMT Summit Therapeutics Inc. | POpen-market purchase Common Stockindirect: Immediate family member | +30,000 | $3.75 | $113k | 30,000 | Mar 27, 2024 |
| Mar 27, 2024 | SMMT Summit Therapeutics Inc. | POpen-market purchase Common Stockindirect: Immediate family member | +20,000 | $3.71 | $74k | 50,000 | Mar 27, 2024 |
| Dec 11, 2023 | SMMT Summit Therapeutics Inc. | XIn-the-money exercise Common Stock | +489,814 | $1.44 | $705k | 489,814 | Dec 13, 2023 |
| Dec 12, 2023 | SMMT Summit Therapeutics Inc. | POpen-market purchase Common Stock | +5,000 | $2.07 | $10k | 494,814 | Dec 13, 2023 |
| Dec 11, 2023 | SMMT Summit Therapeutics Inc. | XIn-the-money exercise Common Stockindirect: By the Mahkam Zanganeh Revocable Trust, with the Reporting Person as Trustee | +315,681 | $1.58 | $499k | 24,889,479 | Dec 13, 2023 |
| Dec 11, 2023 | SMMT Summit Therapeutics Inc. | XIn-the-money exercise Warrant (right to buy)derivative | -489,814 | $0.00 | $0 | 0 | Dec 13, 2023 |
| Dec 11, 2023 | SMMT Summit Therapeutics Inc. | XIn-the-money exercise Warrant (right to buy)derivativeindirect: By the Mahkam Zanganeh Revocable Trust, with the Reporting Person as Trustee | -315,681 | $0.00 | $0 | 0 | Dec 13, 2023 |
| Nov 13, 2023 | PLSE Pulse Biosciences, Inc. | MOption exercise Common Stock | +20,000 | $2.14 | $43k | 548,836 | Nov 15, 2023 |
| Nov 13, 2023 | PLSE Pulse Biosciences, Inc. | MOption exercise Common Stock | +56,075 | $2.14 | $120k | 604,911 | Nov 15, 2023 |
| Nov 13, 2023 | PLSE Pulse Biosciences, Inc. | MOption exercise Stock Option (right to buy)derivative | -20,000 | $0.00 | $0 | 0 | Nov 15, 2023 |
| Nov 13, 2023 | PLSE Pulse Biosciences, Inc. | MOption exercise Stock Option (right to buy)derivative | -56,075 | $0.00 | $0 | 0 | Nov 15, 2023 |
| Oct 13, 2023 | SMMT Summit Therapeutics Inc. | AGrant or award Stock Option (right to buy)derivative | +11,988,198 | - | - | 11,988,198 | Oct 16, 2023 |
| Dec 6, 2022 | SMMT Summit Therapeutics Inc. | JOther Common Stock | +373,857 | - | - | 10,930,849 | Dec 9, 2022 |
Questions about Mahkam Zanganeh
Answered from the filings on this page, as of the latest one.
Is Mahkam Zanganeh buying or selling?
In the last 12 months Mahkam Zanganeh reported 3 open-market buys worth $52M and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $50M of SMMT on Jun 12, 2026. Grants, option exercises and tax withholding are not counted.
How did Mahkam Zanganeh's past buys perform?
Measured from the first close after each filing, the stock beat the S&P 500 by a median 12.7% over six months across 3 past buys, with 67% ahead of the index. Past results describe what happened; they do not predict the next trade.
Where does Mahkam Zanganeh file Form 4?
Mahkam Zanganeh has filed Form 4 at SMMT (Summit Therapeutics Inc.) as Co-CEO & President; PLSE (Pulse Biosciences, Inc.). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.