Mark N Lampert insider trades: MoonLake Immunotherapeutics (MLTX) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Mark reports to the SEC
and 49 more companies
Open-market buys and sales
256 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | MLTX | ↓ Sell | 3,750,000 | $16.79 | $63.0M | Direct | Apr 2, 2026 (2d) |
| Aug 5, 2025 | EPIX | ↓ Sell | 156 | $1.88 | $293 | Direct | Aug 7, 2025 (2d) |
| Jun 30, 2025 | KYMR | ↑ Buy | 317,167 | $44.00 | $14.0M | Direct | Jul 1, 2025 (1d) |
| May 16, 2025 | XOMA | ↓ Sell | 392,723 | $27.10 | $10.6M | Direct | May 20, 2025 (4d) |
| Jan 24, 2025 | XOMA | ↓ Sell | 500,742 | $26.10 | $13.1M | Direct | Jan 28, 2025 (4d) |
| Jan 24, 2025 | XOMA | ↓ Sell | 149,975 | $26.10 | $3.9M | Indirect | Jan 28, 2025 (4d) |
| Oct 29, 2024 | THRD | ↓ Sell | 1,000,000 | $14.30 | $14.3M | Direct | Oct 31, 2024 (2d) |
| Oct 4, 2024 | MLTX | ↓ Sell | 2,000,000 | $50.00 | $100.0M | Direct | Oct 8, 2024 (4d) |
| Dec 18, 2023 | PNT | ↓ Sell | 17,161,278 | $12.45 | $213.7M | Direct | Dec 20, 2023 (2d) |
| Nov 16, 2023 | RPTX | ↑ Buy | 1,227,301 | $5.09 | $6.2M | Direct | Nov 17, 2023 (1d) |
| Nov 3, 2023 | KYMR | ↑ Buy | 414,105 | $12.80 | $5.3M | Direct | Nov 6, 2023 (3d) |
| Nov 2, 2023 | RPTX | ↑ Buy | 783,709 | $3.60 | $2.8M | Direct | Nov 3, 2023 (1d) |
| Sep 12, 2023 | OLMA | ↑ Buy | 1,505,932 | $9.84 | $14.8M | Direct | Sep 14, 2023 (2d) |
| Jan 12, 2023 | KYMR | ↑ Buy | 41,007 | $30.51 | $1.3M | Direct | Jan 13, 2023 (1d) |
| Jan 6, 2023 | XOMA | ↑ Buy | 22,249 | $18.91 | $421K | Direct | Jan 9, 2023 (3d) |
| Dec 20, 2022 | THRD | ↑ Buy | 214,063 | $4.11 | $879K | Direct | Dec 22, 2022 (2d) |
| Nov 8, 2022 | RAIN | ↑ Buy | 1,710,358 | $5.83 | $10.0M | Direct | Nov 10, 2022 (2d) |
| Sep 27, 2022 | XOMA | ↑ Buy | 24,642 | $16.61 | $409K | Direct | Sep 27, 2022 (0d) |
| Sep 16, 2022 | XOMA | ↑ Buy | 56,309 | $17.59 | $991K | Direct | Sep 16, 2022 (0d) |
| Aug 22, 2022 | KYMR | ↑ Buy | 545,525 | $26.00 | $14.2M | Direct | Aug 23, 2022 (1d) |
| Aug 9, 2022 | CTIC | ↓ Sell | 7,210,566 | $6.12 | $44.1M | Direct | Aug 11, 2022 (2d) |
| Aug 9, 2022 | CTIC | ↓ Sell | 1,289,434 | $6.12 | $7.9M | Indirect | Aug 11, 2022 (2d) |
| Jun 13, 2022 | RPTX | ↑ Buy | 149,161 | $12.73 | $1.9M | Direct | Jun 15, 2022 (2d) |
| Jun 10, 2022 | OLMA | ↑ Buy | 200,000 | $4.03 | $807K | Direct | Jun 14, 2022 (4d) |
| Jun 6, 2022 | RPTX | ↑ Buy | 1,836,958 | $11.90 | $21.9M | Direct | Jun 6, 2022 (0d) |
| Jun 1, 2022 | CGEM | ↑ Buy | 751,396 | $11.00 | $8.3M | Direct | Jun 3, 2022 (2d) |
| May 27, 2022 | KYMR | ↑ Buy | 289,426 | $14.34 | $4.2M | Direct | May 31, 2022 (4d) |
| May 20, 2022 | KYMR | ↑ Buy | 10,100 | $14.00 | $141K | Direct | May 24, 2022 (4d) |
| May 18, 2022 | RPTX | ↑ Buy | 420,000 | $8.50 | $3.6M | Direct | May 20, 2022 (2d) |
| May 13, 2022 | CGEM | ↑ Buy | 1,109,900 | $9.07 | $10.1M | Direct | May 16, 2022 (3d) |
| May 6, 2022 | KYMR | ↑ Buy | 250,000 | $19.46 | $4.9M | Direct | May 9, 2022 (3d) |
| Apr 1, 2022 | CGEM | ↑ Buy | 276,000 | $10.75 | $3.0M | Direct | Apr 5, 2022 (4d) |
| Jan 31, 2022 | KYMR | ↑ Buy | 130,309 | $38.96 | $5.1M | Direct | Jan 31, 2022 (0d) |
| Jan 24, 2022 | KYMR | ↑ Buy | 272,767 | $37.76 | $10.3M | Direct | Jan 26, 2022 (2d) |
| Jan 19, 2022 | RPTX | ↑ Buy | 997,961 | $14.10 | $14.1M | Direct | Jan 21, 2022 (2d) |
| Jan 7, 2022 | RAIN | ↑ Buy | 557,728 | $12.00 | $6.7M | Direct | Jan 10, 2022 (3d) |
| Nov 30, 2021 | OLMA | ↑ Buy | 739,675 | $9.39 | $6.9M | Direct | Dec 2, 2021 (2d) |
| Oct 8, 2021 | MRUS | ↓ Sell | 1,132,714 | $27.56 | $31.2M | Direct | Oct 8, 2021 (0d) |
| Sep 21, 2021 | RAIN | ↑ Buy | 11,033 | $13.94 | $154K | Direct | Sep 23, 2021 (2d) |
| Sep 13, 2021 | RAIN | ↑ Buy | 392,269 | $16.49 | $6.5M | Direct | Sep 15, 2021 (2d) |
| Jul 6, 2021 | RAIN | ↑ Buy | 587,002 | $15.47 | $9.1M | Direct | Jul 6, 2021 (0d) |
| Jul 2, 2021 | MRUS | ↓ Sell | 2,186,022 | $20.75 | $45.4M | Direct | Jul 7, 2021 (5d) |
| Jul 1, 2021 | KYMR | ↑ Buy | 544,166 | $47.00 | $25.6M | Direct | Jul 6, 2021 (5d) |
| May 24, 2021 | RAIN | ↑ Buy | 123,347 | $15.94 | $2.0M | Direct | May 25, 2021 (1d) |
| May 19, 2021 | RAIN | ↑ Buy | 208,465 | $16.59 | $3.5M | Direct | May 20, 2021 (1d) |
| May 13, 2021 | RAIN | ↑ Buy | 58,000 | $14.26 | $827K | Direct | May 17, 2021 (4d) |
| Apr 1, 2021 | CTIC | ↑ Buy | 2,000,000 | $2.50 | $5.0M | Direct | Apr 5, 2021 (4d) |
| Mar 31, 2021 | XOMA | ↓ Sell | 569,797 | $38.36 | $21.9M | Direct | Apr 2, 2021 (2d) |
| Mar 31, 2021 | XOMA | ↓ Sell | 81,903 | $38.36 | $3.1M | Indirect | Apr 2, 2021 (2d) |
| Mar 30, 2021 | MRUS | ↑ Buy | 300,000 | $19.75 | $5.9M | Direct | Apr 1, 2021 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other MLTX insiders
Open-market trades in the last 12 months
About Mark N Lampert's insider trades
Mark N Lampert is a director at MoonLake Immunotherapeutics (MLTX). Since Jun 29, 2009, Mark has reported 179 open-market purchases worth $554.4M and 77 sales worth $1.05B on SEC Form 4. In the last 12 months: 1 sale ($63.0M).
Their filings also include other transactions (32 filings), grants and awards (27 filings), conversions (7 filings), shares returned to the company (6 filings). 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 MLTX insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.