As of the latest SEC filings, MERSANA THERAPEUTICS, INC. (MRSN) is held by 6 institutional funds. The largest fund shareholder is Gabelli Healthcare & WellnessRx Trust (GRX), holding an estimated $74,250.00 in market value, representing 0.05% of its portfolio.
Funds holding MERSANA THERAPEUTICS, INC. (MRSN)
Source: SEC Form N-PORT institutional portfolio disclosures
- Ticker:
- MRSN
- CIK:
| Fund | Type | Manager | Weight | Market Value | Shares |
Report Date
|
Filing Date
|
|---|---|---|---|---|---|---|---|
|
GRX
Gabelli Healthcare & WellnessRx Trust
|
CEF | GAMCO / Gabelli | 0.05% | $74,250.00 | 27,000 | Mar 31, 2026 | Jun 1, 2026 |
|
GDL
GDL Fund
|
CEF | Independent / Boutique | 0.03% | $35,750.00 | 13,000 | Mar 31, 2026 | Jun 1, 2026 |
|
GADVX
The Gabelli ABC Fund
|
MF | GAMCO / Gabelli | 0.01% | $27,500.00 | 10,000 | Mar 31, 2026 | Jun 1, 2026 |
|
-
1290 VT GAMCO Mergers & Acquisitions Portfolio
|
ETF | Independent / Boutique | 0.01% | $21,225.00 | 10,000 | Mar 31, 2026 | May 26, 2026 |
|
EMACX
Enterprise Mergers and Acquisitions Fund
|
MF | GAMCO / Gabelli | 0.02% | $11,000.00 | 4,000 | Mar 31, 2026 | Jun 1, 2026 |
|
USMIX
Victory Extended Market Index Fund
|
MF | Independent / Boutique | 0.00% | $1,827.84 | 448 | Apr 30, 2026 | Jun 25, 2026 |
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