Ownership history in BARCLAYS PLC · 33 quarters on record
This page tracks every 13F SEC filing in which BARCLAYS PLC reported a position in MERSANA THERAPEUTICS INC (MRSN). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.
| Quarter | Action | Shares | Change | Chg % | % of Fund | Mkt Value | Price (EOQ) |
|---|---|---|---|---|---|---|---|
| 2025 Q3 | REDUCED | 198 | -9,569 | -98.0% | 0.00% | $2K | — |
| 2025 Q2 | REDUCED | 9,767 | -111,958 | -92.0% | 0.00% | $3K | — |
| 2025 Q1 | REDUCED | 121,725 | -60,986 | -33.4% | 0.00% | $41K | — |
| 2024 Q4 | REDUCED | 182,711 | -311,805 | -63.1% | 0.00% | $262K | — |
As of 2025 Q4 — sorted by position size