Real time Form 13D and 13G transaction reports:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company’s equity securities.
- Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| Reported DateTime | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | Filing |
| 2024-02-14 8:56 pm Purchase | 13G | MERSANA THERAPEUTICS INC MRSN | Venrock Healthcare Capital Partners III L.P. | 11,328,000 9.4% | 1,650,000 (+17.05%) | View |
| 2024-02-14 8:43 pm Purchase | 13G | MERSANA THERAPEUTICS INC MRSN | SILVERARC CAPITAL MANAGEMENT LLC | 6,420,136 5.3% | 6,420,136 (New Position) | View |
| 2024-02-14 6:55 pm Sale | 13G | MERSANA THERAPEUTICS INC MRSN | ORBIMED ADVISORS LLC | 0 0% | -7,082,837 (Position Closed) | View |
| 2024-02-14 09:20 am Sale | 13G | MERSANA THERAPEUTICS INC MRSN | Avoro Capital Advisors LLC | 0 0% | -7,550,000 (Position Closed) | View |
| 2024-02-14 07:22 am Purchase | 13G | MERSANA THERAPEUTICS INC MRSN | BALYASNY ASSET MANAGEMENT L.P. | 9,698,147 8.04% | 9,698,147 (New Position) | View |
| 2024-02-13 5:09 pm Purchase | 13G | MERSANA THERAPEUTICS INC MRSN | VANGUARD GROUP INC | 6,237,588 5.17% | 1,788,548 (+40.20%) | View |
| 2024-01-29 3:26 pm Purchase | 13G | MERSANA THERAPEUTICS INC MRSN | BlackRock Inc. BLK | 7,844,282 6.5% | 352,353 (+4.70%) | View |
| 2024-01-22 1:36 pm Sale | 13G | MERSANA THERAPEUTICS INC MRSN | STATE STREET CORP STT | 2,329,434 1.93% | -3,526,627 (-60.22%) | View |
| 2023-08-07 4:15 pm Purchase | 13G | MERSANA THERAPEUTICS INC MRSN | Venrock Healthcare Capital Partners III L.P. | 9,678,000 8.5% | 9,678,000 (New Position) | View |
| 2023-07-27 5:11 pm Purchase | 13G | MERSANA THERAPEUTICS INC MRSN | EcoR1 Capital LLC | 19,364,688 16.9% | 19,364,688 (New Position) | View |
| 2023-02-14 4:43 pm Purchase | 13G | MERSANA THERAPEUTICS INC MRSN | ORBIMED ADVISORS LLC | 7,082,837 7.1% | 7,082,837 (New Position) | View |
| 2023-02-14 4:18 pm Sale | 13G | MERSANA THERAPEUTICS INC MRSN | BB BIOTECH AG | 4,066,200 4.1% | -68,800 (-1.66%) | View |
| 2023-02-14 09:38 am Purchase | 13G | MERSANA THERAPEUTICS INC MRSN | Avoro Capital Advisors LLC | 7,550,000 7.6% | 750,000 (+11.03%) | View |
| 2023-02-13 6:04 pm Sale | 13G | MERSANA THERAPEUTICS INC MRSN | Rho Ventures V L.P. | 604,213 0.6% | -726,974 (-54.61%) | View |
| 2023-02-09 11:27 am Purchase | 13G | MERSANA THERAPEUTICS INC MRSN | VANGUARD GROUP INC | 4,449,040 4.46% | 841,609 (+23.33%) | View |
| 2023-02-06 2:53 pm Sale | 13G | MERSANA THERAPEUTICS INC MRSN | WELLINGTON MANAGEMENT GROUP LLP | 0 0% | -5,017,078 (Position Closed) | View |
| 2023-02-03 12:27 pm Purchase | 13G | MERSANA THERAPEUTICS INC MRSN | STATE STREET CORP STT | 5,856,061 5.87% | 1,635,504 (+38.75%) | View |
| 2023-01-31 1:58 pm Purchase | 13G | MERSANA THERAPEUTICS INC MRSN | BlackRock Inc. BLK | 7,491,929 7.5% | 12,700 (+0.17%) | View |
| 2023-01-19 4:06 pm Sale | 13G | MERSANA THERAPEUTICS INC MRSN | MILLENNIUM MANAGEMENT LLC | 3,663,527 3.7% | -67,184 (-1.80%) | View |
| 2022-05-11 5:26 pm Unchanged | 13D | MERSANA THERAPEUTICS INC MRSN | Bain Capital Life Sciences Fund II L.P. | 4,041,733 4.2% | 0 (Unchanged) | View |