Mersana Therapeutics, Inc. Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| NEXTECH INVEST, LTD. | 11/14/2025 | 482.69 K | $3.75 M | 100.00% | 9.68% |
| ALAMEA VERWALTUNGS GMBH | 11/13/2025 | 430.03 K | $3.34 M | 100.00% | 8.62% |
| BAIN CAPITAL LIFE SCIENCES INVESTORS, LLC | 11/14/2025 | 346.55 K | $2.69 M | 100.00% | 6.95% |
| VANGUARD GROUP INC | 11/07/2025 | 302.55 K | $2.35 M | 100.00% | 6.07% |
| SCHONFELD STRATEGIC ADVISORS LLC | 11/14/2025 | 273.58 K | $2.12 M | 100.00% | 5.49% |
| ROCK SPRINGS CAPITAL MANAGEMENT LP | 11/14/2025 | 152.59 K | $1.18 M | 100.00% | 3.06% |
| ACADIAN ASSET MANAGEMENT LLC | 11/13/2025 | 142.36 K | $1.10 M | 100.00% | 2.85% |
| SILVERARC CAPITAL MANAGEMENT, LLC | 11/12/2025 | 133.64 K | $1.04 M | 100.00% | 2.68% |
| 683 CAPITAL MANAGEMENT, LLC | 11/14/2025 | 100.00 K | $776.00 K | 100.00% | 2.01% |
| BLACKROCK, INC. | 11/12/2025 | 96.19 K | $746.46 K | 100.00% | 1.93% |
| RENAISSANCE TECHNOLOGIES LLC | 11/13/2025 | 88.47 K | $686.49 K | 100.00% | 1.77% |
| MILLENNIUM MANAGEMENT LLC | 11/14/2025 | 77.99 K | $605.20 K | 100.00% | 1.56% |
| BANK OF AMERICA CORP /DE/ | 11/14/2025 | 66.40 K | $515.24 K | 100.00% | 1.33% |
| 5AM VENTURE MANAGEMENT, LLC | 11/14/2025 | 52.20 K | $405.07 K | 100.00% | 1.05% |
| LUMINUS MANAGEMENT LLC | 10/03/2025 | 50.00 K | $388.00 K | -95.19% | 1.00% |
| MORGAN STANLEY | 11/14/2025 | 48.33 K | $375.02 K | 100.00% | 0.97% |
| MACKENZIE FINANCIAL CORP | 11/13/2025 | 47.82 K | $371.08 K | 100.00% | 0.96% |
| AQR CAPITAL MANAGEMENT LLC | 11/14/2025 | 46.72 K | $362.55 K | 100.00% | 0.94% |
| GEODE CAPITAL MANAGEMENT, LLC | 11/12/2025 | 41.65 K | $323.29 K | 100.00% | 0.84% |
| TWO SIGMA ADVISERS, LP | 11/14/2025 | 40.64 K | $315.37 K | 100.00% | 0.82% |
| TWO SIGMA INVESTMENTS, LP | 11/14/2025 | 30.69 K | $238.14 K | 100.00% | 0.62% |
| STATE STREET CORP | 11/14/2025 | 29.84 K | $231.58 K | 100.00% | 0.60% |
| LION POINT CAPITAL, LP | 11/14/2025 | 25.76 K | $199.90 K | 100.00% | 0.52% |
| IEQ CAPITAL, LLC | 11/14/2025 | 15.24 K | $118.26 K | 100.00% | 0.31% |
| DRW SECURITIES, LLC | 11/14/2025 | 13.85 K | $107.48 K | 100.00% | 0.28% |
| VOLEON CAPITAL MANAGEMENT LP | 11/14/2025 | 13.20 K | $102.43 K | 100.00% | 0.26% |
| UBS GROUP AG | 11/13/2025 | 8.61 K | $66.81 K | 100.00% | 0.17% |
| JPMORGAN CHASE & CO | 11/26/2025 | 6.11 K | $47.40 K | 100.00% | 0.12% |
| FMR LLC | 11/13/2025 | 4.86 K | $37.75 K | 100.00% | 0.10% |
| CWM, LLC | 10/15/2025 | 2.88 K | $22.00 K | -98.26% | 0.06% |
| ADVISOR GROUP HOLDINGS, INC. | 11/14/2025 | 2.50 K | $725 | -3.77% | 0.05% |
| TOWER RESEARCH CAPITAL LLC (TRC) | 11/14/2025 | 1.56 K | $12.12 K | 100.00% | 0.03% |
| WELLS FARGO & COMPANY/MN | 11/13/2025 | 1.24 K | $9.62 K | 100.00% | 0.02% |
| GROUP ONE TRADING, L.P. | 11/12/2025 | 961 | $7.46 K | 100.00% | 0.02% |
| CHINA UNIVERSAL ASSET MANAGEMENT CO., LTD. | 11/10/2025 | 875 | $6.79 K | 100.00% | 0.02% |
| ROYAL BANK OF CANADA | 11/14/2025 | 692 | $5.00 K | 100.00% | 0.01% |
| IFP ADVISORS, INC | 12/02/2025 | 610 | $187 | -9.90% | 0.01% |
| BNP PARIBAS ARBITRAGE, SNC | 11/13/2025 | 531 | $4.12 K | 100.00% | 0.01% |
| BARCLAYS PLC | 11/12/2025 | 198 | $1.54 K | 100.00% | 0.00% |
| MIRAE ASSET GLOBAL INVESTMENTS CO., LTD. | 11/03/2025 | 193 | $1.50 K | 100.00% | 0.00% |
| SRS CAPITAL ADVISORS, INC. | 11/14/2025 | 157 | $1.22 K | 100.00% | 0.00% |
| CITIGROUP INC | 11/10/2025 | 106 | $823 | 100.00% | 0.00% |
| ADVISOR GROUP HOLDINGS, INC. | 11/14/2025 | 103 | $755 | 100.00% | 0.00% |
| GF FUND MANAGEMENT CO. LTD. | 11/07/2025 | 94 | $729 | 100.00% | 0.00% |
| SBI SECURITIES CO., LTD. | 11/05/2025 | 54 | $419 | -96.05% | 0.00% |
| HUNTINGTON NATIONAL BANK | 11/12/2025 | 32 | $248 | 100.00% | 0.00% |
| EVERSOURCE WEALTH ADVISORS, LLC | 11/10/2025 | 14 | $109 | -99.75% | 0.00% |
| NORTH STAR INVESTMENT MANAGEMENT CORP. | 10/22/2025 | 6 | $47 | -96.00% | 0.00% |
| IFP ADVISORS, INC | 12/02/2025 | 5 | $39 | 100.00% | 0.00% |
| DANSKE BANK A/S | 11/19/2025 | 1 | $8 | 100.00% | 0.00% |
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Mersana Therapeutics, Inc. institutional Ownership - FAQ's
During the previous two years, 112 institutional investors and hedge funds held shares of Mersana Therapeutics, Inc.. The most heavily invested institutionals were:
Nextech Invest, Ltd.: 482,689
Alamea Verwaltungs GmbH: 430,025
Bain Capital Life Sciences Investors, LLC: 346,545
VANGUARD GROUP INC: 302,553
Schonfeld Strategic Advisors LLC: 273,579
Rock Springs Capital Management LP: 152,586
63.75% of Mersana Therapeutics, Inc. stock is owned by institutional investors.
Institutional investors have bought a total of 32.50 M shares in the last 24 months. This purchase volume represents approximately $269.14 M in transactions.