Timothy B Lowinger insider trades: Mersana Therapeutics (MRSN) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Timothy reports to the SEC
Open-market buys and sales
24 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jan 16, 2025 | MRSN | ↓ Sell | 8,048 | $0.58 | $5K | Direct | Jan 17, 2025 (1d) |
| Jan 15, 2025 | MRSN | ↓ Sell | 1,794 | $0.63 | $1K | Direct | Jan 16, 2025 (1d) |
| Jan 14, 2025 | MRSN | ↓ Sell | 3,483 | $0.66 | $2K | Direct | Jan 15, 2025 (1d) |
| Oct 3, 2024 | MRSN | ↓ Sell | 13,687 | $1.98 | $27K | Direct | Oct 7, 2024 (4d) |
| Jan 16, 2024 | MRSN | ↓ Sell | 10,409 | $2.71 | $28K | Direct | Jan 17, 2024 (1d) |
| Jan 17, 2023 | MRSN | ↓ Sell | 6,233 | $5.74 | $36K | Direct | Jan 18, 2023 (1d) |
| Jan 18, 2022 | MRSN | ↓ Sell | 4,741 | $5.92 | $28K | Direct | Jan 19, 2022 (1d) |
| Aug 20, 2021 | MRSN | ↓ Sell | 2,216 | $11.01 | $24K | Direct | Aug 24, 2021 (4d) |
| Jul 20, 2021 | MRSN | ↓ Sell | 2,227 | $12.11 | $27K | Direct | Jul 22, 2021 (2d) |
| Jul 19, 2021 | MRSN | ↓ Sell | 16,271 | $12.24 | $199K | Direct | Jul 19, 2021 (0d) |
| Jul 1, 2021 | MRSN | ↓ Sell | 1,886 | $13.60 | $26K | Direct | Jul 2, 2021 (1d) |
| Jun 21, 2021 | MRSN | ↓ Sell | 2,220 | $13.78 | $31K | Direct | Jun 23, 2021 (2d) |
| May 20, 2021 | MRSN | ↓ Sell | 4,102 | $14.10 | $58K | Direct | May 24, 2021 (4d) |
| Apr 20, 2021 | MRSN | ↓ Sell | 4,102 | $15.91 | $65K | Direct | Apr 22, 2021 (2d) |
| Mar 22, 2021 | MRSN | ↓ Sell | 8,203 | $17.50 | $144K | Direct | Mar 24, 2021 (2d) |
| Feb 22, 2021 | MRSN | ↓ Sell | 5,976 | $20.01 | $120K | Direct | Feb 24, 2021 (2d) |
| Jan 20, 2021 | MRSN | ↓ Sell | 5,976 | $21.54 | $129K | Direct | Jan 22, 2021 (2d) |
| Dec 21, 2020 | MRSN | ↓ Sell | 8,203 | $25.60 | $210K | Direct | Dec 22, 2020 (1d) |
| Nov 20, 2020 | MRSN | ↓ Sell | 8,203 | $23.05 | $189K | Direct | Nov 24, 2020 (4d) |
| Oct 21, 2020 | MRSN | ↓ Sell | 8,203 | $17.12 | $140K | Direct | Oct 22, 2020 (1d) |
| Sep 21, 2020 | MRSN | ↓ Sell | 20,614 | $20.66 | $426K | Direct | Sep 23, 2020 (2d) |
| Sep 24, 2018 | MRSN | ↓ Sell | 3,500 | $11.63 | $41K | Direct | Sep 25, 2018 (1d) |
| Aug 27, 2018 | MRSN | ↓ Sell | 3,500 | $13.15 | $46K | Direct | Aug 29, 2018 (2d) |
| Jul 23, 2018 | MRSN | ↓ Sell | 3,500 | $11.06 | $39K | Direct | Jul 25, 2018 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
About Timothy B Lowinger's insider trades
Timothy B Lowinger is SVP, Chief Sci.&Tech. Officer at Mersana Therapeutics (MRSN). Since Jul 23, 2018, Timothy has reported no open-market purchases and 24 sales worth $2.0M on SEC Form 4. There have been no open-market trades in the last 12 months.
Their filings also include option exercises (30 filings), grants and awards (10 filings), shares returned to the company (1 filing), other transactions (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 MRSN insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.