Mersana Therapeutics, Inc. - MRSN

Sector: Healthcare · Industry: Pharmaceutical Preparations
Website: No information yet · Social: No information yet

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Q4 2025 · Q3 2025
Value (USD)
Total reported value ($000)
$65.63M
QoQ value delta ($000)
+$41.38M (+170.64%)
Implied price effect (QoQ)
+272.04%
Shares
Total shares
2,275,157
QoQ shares delta
-852,367 (-27.25%)
Total shares held by funds (by quarter)

Market chart (MRSN)

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Top holders (Q4 2025)

Top 25 only Full list
Early Q1 2026 data: only 1 institutional holders reported so far. More will appear as funds file with the SEC.
Manager Value ($000) Shares % of 13F
Nextech Invest, Ltd. 13,964 482,689 1.35%
Bain Capital Life Sciences Investors, LLC 10,025 346,545 0.77%
VANGUARD GROUP INC 6,084 210,301 0.0%
Rock Springs Capital Management LP 4,414 152,586 0.23%
Alamea Verwaltungs GmbH 3,336 24,165 2.25%
ACADIAN ASSET MANAGEMENT LLC 3,207 110,882 0.01%
Affinity Asset Advisors, LLC 2,893 100,000 0.16%
BlackRock, Inc. 2,002 69,210 0.0%
BANK OF AMERICA CORP /DE/ 1,902 65,749 0.0%
MILLENNIUM MANAGEMENT LLC 1,831 63,305 0.0%
Groupe la Francaise 1,778 61,488 0.02%
Rangeley Capital, LLC 1,651 57,098 1.37%
GABELLI FUNDS LLC 1,368 47,300 0.01%
GEODE CAPITAL MANAGEMENT, LLC 1,270 43,920 0.0%
CREDIT INDUSTRIEL ET COMMERCIAL 1,197 41,392 0.09%
AQR CAPITAL MANAGEMENT LLC 1,078 37,264 0.0%
MACKENZIE FINANCIAL CORP 967 33,834 0.0%
Yakira Capital Management, Inc. 944 32,663 0.32%
CITADEL ADVISORS LLC 650 22,493 0.0%
EQUITEC PROPRIETARY MARKETS, LLC 595 20,593 0.34%
STATE STREET CORP 565 19,543 0.0%
MORGAN STANLEY 535 18,496 0.0%
DELTEC ASSET MANAGEMENT LLC 520 18,000 0.09%
SUSQUEHANNA INTERNATIONAL GROUP, LLP 445 15,400 0.0%
Knott David M Jr 437 111,686 0.2%