MRSN Institutional Ownership
Mersana Therapeutics, Inc.
1W: -0.2%
1M: +5.5%
3M: +264.4%
1Y: -22.9%
3Y: -80.0%
5Y: -95.8%
$29.08
Last traded 2025-12-31 — delisted
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Institutional Ownership — MRSN
1
Institutional Holders
-47 vs prior quarter
0.0%
Ownership
+0.00pp
$0M
Total Invested
0
New Positions
0
Increased
1
Reduced
1
Closed
0.00
Put/Call Ratio
Ownership Trends
Top Institutional Holders (47 total)
| # | Holder | Shares | Value | Change | Change % | Holding Period | Filing |
|---|---|---|---|---|---|---|---|
| 1 | OSAIC HOLDINGS, INC. | 0 | $0K | -103 | -100.0% | 2Q | SEC ↗ |
| 2 | BNP PARIBAS FINANCIAL MARKETS | 0 | $0K | -1,090 | -100.0% | 2Q | SEC ↗ |
| 3 | CREDIT INDUSTRIEL ET COMMERCIAL | 0 | $0K | -41,392 | -100.0% | 1Q | SEC ↗ |
| 4 | Nextech Invest, Ltd. | 0 | $0K | -482,689 | -100.0% | 2Q | SEC ↗ |
| 5 | IEQ CAPITAL, LLC | 0 | $0K | -12,955 | -100.0% | 2Q | SEC ↗ |
| 6 | JPMORGAN CHASE & CO | 0 | $0K | -112 | -100.0% | 2Q | SEC ↗ |
| 7 | BANK OF AMERICA CORP /DE | 0 | $0K | -65,749 | -100.0% | 2Q | SEC ↗ |
| 8 | NORTHERN TRUST CORP | 0 | $0K | -8,586 | -100.0% | 1Q | SEC ↗ |
| 9 | OMERS ADMINISTRATION Corp | 0 | $0K | -7,900 | -100.0% | 1Q | SEC ↗ |
| 10 | DELTEC ASSET MANAGEMENT LLC | 0 | $0K | -18,000 | -100.0% | 1Q | SEC ↗ |
| 11 | Rangeley Capital, LLC | 0 | $0K | -57,098 | -100.0% | 1Q | SEC ↗ |
| 12 | Tower Research Capital LLC (TRC) | 0 | $0K | -376 | -100.0% | 2Q | SEC ↗ |
| 13 | DANSKE BANK A/S | 0 | $0K | -1 | -100.0% | 2Q | SEC ↗ |
| 14 | Affinity Asset Advisors, LLC | 0 | $0K | -100,000 | -100.0% | 1Q | SEC ↗ |
| 15 | GABELLI FUNDS LLC | 0 | $0K | -47,300 | -100.0% | 1Q | SEC ↗ |
| 16 | AQR CAPITAL MANAGEMENT LLC | 0 | $0K | -37,264 | -100.0% | 2Q | SEC ↗ |
| 17 | UBS Group AG | 0 | $0K | -221 | -100.0% | 2Q | SEC ↗ |
| 18 | Lion Point Capital, LP | 0 | $0K | -100 | -100.0% | 2Q | SEC ↗ |
| 19 | Mint Tower Capital Management B.V. | 0 | $0K | -1,035 | -100.0% | 1Q | SEC ↗ |
| 20 | MORGAN STANLEY | 0 | $0K | -18,496 | -100.0% | 2Q | SEC ↗ |
| 21 | EQUITEC PROPRIETARY MARKETS, LLC | 0 | $0K | -5,593 | -100.0% | 1Q | SEC ↗ |
| 22 | Yakira Capital Management, Inc. | 0 | $0K | -32,663 | -100.0% | 1Q | SEC ↗ |
| 23 | Alamea Verwaltungs GmbH | 0 | $0K | -24,165 | -100.0% | 2Q | SEC ↗ |
| 24 | BlackRock, Inc. | 0 | $0K | -69,210 | -100.0% | 2Q | SEC ↗ |
| 25 | MACKENZIE FINANCIAL CORP | 0 | $0K | -33,834 | -100.0% | 2Q | SEC ↗ |
| 26 | GAMCO INVESTORS, INC. ET AL | 0 | $0K | -10,000 | -100.0% | 1Q | SEC ↗ |
| 27 | Point72 Asset Management, L.P. | 0 | $0K | -10,364 | -100.0% | 1Q | SEC ↗ |
| 28 | Bain Capital Life Sciences Investors, | 0 | $0K | -346,545 | -100.0% | 2Q | SEC ↗ |
| 29 | SHP Wealth Management | 0 | $0K | -25 | -100.0% | 1Q | SEC ↗ |
| 30 | HUNTINGTON NATIONAL BANK | 0 | $0K | -32 | -100.0% | 2Q | SEC ↗ |
| 31 | ROYAL BANK OF CANADA | 0 | $0K | -162 | -100.0% | 2Q | SEC ↗ |
| 32 | GEODE CAPITAL MANAGEMENT, LLC | 0 | $0K | -43,920 | -100.0% | 2Q | SEC ↗ |
| 33 | FLAGSHIP HARBOR ADVISORS, LLC | 0 | $0K | -76 | -100.0% | 1Q | SEC ↗ |
| 34 | SBI Securities Co., Ltd. | 0 | $0K | -53 | -100.0% | 3Q | SEC ↗ |
| 35 | Knott David M Jr | 0 | $0K | -111,686 | -100.0% | 1Q | SEC ↗ |
| 36 | ACADIAN ASSET MANAGEMENT LLC | 0 | $0K | -110,882 | -100.0% | 2Q | SEC ↗ |
| 37 | WELLS FARGO & COMPANY/MN | 0 | $0K | -40 | -100.0% | 2Q | SEC ↗ |
| 38 | MILLENNIUM MANAGEMENT LLC | 0 | $0K | -63,305 | -100.0% | 2Q | SEC ↗ |
| 39 | CWM, LLC | 0 | $0K | -2,286 | -100.0% | 2Q | SEC ↗ |
| 40 | Groupe la Francaise | 0 | $0K | -61,488 | -100.0% | 1Q | SEC ↗ |
| 41 | GROUP ONE TRADING LLC | 0 | $0K | -1,073 | -100.0% | 2Q | SEC ↗ |
| 42 | CITADEL ADVISORS LLC | 0 | $0K | -22,493 | -100.0% | 1Q | SEC ↗ |
| 43 | Rock Springs Capital Management LP | 0 | $0K | -152,586 | -100.0% | 2Q | SEC ↗ |
| 44 | XTX Topco Ltd | 0 | $0K | -11,948 | -100.0% | 1Q | SEC ↗ |
| 45 | IFP Advisors, Inc | 0 | $0K | -3 | -100.0% | 3Q | SEC ↗ |
| 46 | STATE STREET CORP | 0 | $0K | -19,543 | -100.0% | 2Q | SEC ↗ |
| 47 | FMR LLC | 0 | $0K | -8 | -100.0% | 2Q | SEC ↗ |
Recent Activity
New Positions (0)
No new positions this quarter.
Sold Out (20)
| Holder | Prev Shares | Prev Value |
|---|---|---|
| Nextech Invest, Ltd. | 482,689 | $14M |
| Bain Capital Life Sciences Investor | 346,545 | $10M |
| Rock Springs Capital Management LP | 152,586 | $4M |
| Knott David M Jr | 111,686 | $3M |
| ACADIAN ASSET MANAGEMENT LLC | 110,882 | $3M |
| Affinity Asset Advisors, LLC | 100,000 | $3M |
| BlackRock, Inc. | 69,210 | $2M |
| BANK OF AMERICA CORP /DE | 65,749 | $2M |
| MILLENNIUM MANAGEMENT LLC | 63,305 | $2M |
| Groupe la Francaise | 61,488 | $2M |
| Rangeley Capital, LLC | 57,098 | $2M |
| GABELLI FUNDS LLC | 47,300 | $1M |
| GEODE CAPITAL MANAGEMENT, LLC | 43,920 | $1M |
| CREDIT INDUSTRIEL ET COMMERCIAL | 41,392 | $1M |
| AQR CAPITAL MANAGEMENT LLC | 37,264 | $1M |
| MACKENZIE FINANCIAL CORP | 33,834 | $984K |
| Yakira Capital Management, Inc. | 32,663 | $950K |
| Alamea Verwaltungs GmbH | 24,165 | $703K |
| CITADEL ADVISORS LLC | 22,493 | $654K |
| STATE STREET CORP | 19,543 | $568K |
Biggest Increases (0)
None.
Biggest Decreases (0)
None.