Stock Analysis

MERSANA THERAPEUTICS INC (MRSN)

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Current Price
-- USD
Analyst Target
-- (0 analysts)
Upside
0.00%
Net Flow Q/Q
→ 0
Streak
1Q —
Buyers last Q
35%

Smart Money Signals — MRSN

Based on 42 hedge funds · latest filing: 2025 Q4 · updated quarterly

➡️

No change last quarter

last 6Q
The number of hedge funds holding this stock didn't change last quarter. Neither a buying nor selling signal on its own — watch the next quarter for direction.
🔻

Below peak — only 30% of 3.0Y high

30% of all-time peak
Only 42 funds hold this stock today versus a peak of 138 funds at 2023 Q2 — just 30% of the maximum. Low institutional ownership can mean the stock is out of favor, but it also means there's a large pool of potential buyers if sentiment turns.
📉

Outflows — 64% fewer funds vs a year ago

fund count last 6Q
74 fewer hedge funds hold this stock compared to a year ago (-64% decline). When institutions consistently reduce exposure, it's worth asking what they know that retail investors don't.
🔴

Heavy selling pressure — only 35% buying

19 buying36 selling
Last quarter: 36 funds sold vs only 19 buyers. This is widespread institutional distribution — not a few funds rebalancing, but a broad exit. High conviction bearish signal.
📈

More new buyers each quarter (+11 vs last Q)

new funds entering per quarter
Funds opening this position for the first time: 27 → 11 → 5 → 16. A growing number of new institutional buyers means the stock is still being discovered — the opportunity hasn't been fully priced in.
🔒

55% of holders stayed for 2+ years

55% conviction (2yr+) 24% medium 21% new
23 out of 42 hedge funds have held this stock for over 2 years without selling. Long-term holders are harder to shake out during market dips — they represent a stable ownership base that reduces the risk of sudden mass selling.
💰

Price up while funds trimmed (+156% value, -28% shares)

Value
+155%
Shares
-27%
Last quarter: total value of institutional MRSN holdings rose +156% even though funds reduced share count by 28%. The stock price increased enough to offset the selling. Institutions are quietly trimming into price strength — watch for rotation.
📊

Peak discovery — momentum slowing

23 → 27 → 11 → 5 → 16 new funds/Q
New funds entering each quarter: 27 → 11 → 5 → 16. The stock is well-known in the hedge fund world but new entries are declining. The easy phase of institutional discovery may be behind us.
🏛️

Deep conviction — 70% of holders stayed 2+ years

70% veterans 2% 1-2yr 28% new
Of 43 current holders: 30 (70%) have held for over 2 years without selling. These are not momentum buyers — they have lived through drawdowns and stayed. A large veteran base acts as a stabilizing force during selloffs.

Strong quality — 24% from major AUM funds

24% from top-100 AUM funds
10 of 42 current holders rank in the top 100 by AUM. A meaningful share of the ownership base comes from the most well-resourced institutions.
1.3
out of 10
Low Exit Risk
Exit risk score 1.3/10 — low institutional crowding. Ownership is below peak levels, holder base is relatively sticky, and buying momentum is positive.

Hedge Fund Ownership: MRSN

How many hedge funds hold MRSN — quarterly history vs. share price
Quarterly hedge fund ownership of MRSN vs. share price

Market Analysis: MRSN

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Analyst Price Targets

-- Low
-- High
-- Average
-- Current

Analyst Recommendations

Stock Performance

Real-time

Company Profile: MRSN

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Hedge Fund Positioning: MRSN
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Metric All 13F Filers (2025 Q4) Prior (2025 Q3) Change

Statistics: MRSN

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Institutional Holders (2025 Q4)
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Investor Ownership
History
% of Portfolio Prev % Rank Conviction Avg Buy
Price
13F Score™ 3Y / 7Y Shares Mkt Value Change Change % Source Quarter Filed