Merit Medical Systems
MMSI
390 hedge funds and large institutions have $5.48B invested in Merit Medical Systems in 2025 Q4 according to their latest regulatory filings, with 65 funds opening new positions, 172 increasing their positions, 115 reducing their positions, and 45 closing their positions.
1,736% more call options, than puts
Call options by funds: $83.7M | Put options by funds: $4.56M
100% more funds holding in top 10
Funds holding in top 10: 1 → 2 (+1)
50% more repeat investments, than reductions
Existing positions increased: 172 | Existing positions reduced: 115
44% more first-time investments, than exits
New positions opened: 65 | Existing positions closed: 45
9% more capital invested
Capital invested by funds: $5.04B → $5.48B (+$446M)
3% more funds holding
Funds holding: 378 → 390 (+12)
2.74% more ownership
Funds ownership: 102.18% → 104.92% (+2.7%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Citigroup
New York
|
+$88.1M |
| 2 |
Point72 Asset Management
Stamford,
Connecticut
|
+$37.2M |
| 3 |
ITP
Iron Triangle Partners
Cos Cob,
Connecticut
|
+$32.8M |
| 4 |
CIP
Champlain Investment Partners
Burlington,
Vermont
|
+$31.2M |
| 5 |
Walleye Capital
New York
|
+$20.8M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Macquarie Group
Sydney, NSW 2000,
Australia
|
-$111M |
| 2 |
MC
Maverick Capital
Dallas,
Texas
|
-$95.7M |
| 3 |
Loomis, Sayles & Company
Boston,
Massachusetts
|
-$37.2M |
| 4 |
Franklin Resources
San Mateo,
California
|
-$36.1M |
| 5 |
Invesco
Atlanta,
Georgia
|
-$18.9M |
MMSI Hedge Fund Activity: Q4 2025 in Review
390 of the 8,266 institutional investors tracked by Wall St. Rank reported a position in Merit Medical Systems (MMSI) for Q4 2025, worth a combined $5.48B — up 8.9% from $5.04B a quarter earlier.
Buyers outnumbered sellers: 65 funds opened new MMSI positions and 45 closed out — a net gain of 20 holders — while 172 added to existing stakes and 115 trimmed.
The largest buyer was Citigroup, adding an estimated $88.1M. The largest seller was Macquarie Group, exiting entirely with an estimated $111M sold.
- 390 institutional investors held Merit Medical Systems (MMSI) as of Q4 2025, up from 378 in Q3 2025.
- Funds reported $5.48B of Merit Medical Systems stock for Q4 2025, up 8.9% quarter-over-quarter.
- 65 funds opened new Merit Medical Systems positions in Q4 2025 and 45 closed out, a net change of +20 holders.
- The largest Merit Medical Systems buyer in Q4 2025 was Citigroup, an estimated $88.1M added.
- The largest Merit Medical Systems seller in Q4 2025 was Macquarie Group, an estimated $111M sold.
Based on aggregated 13F filings for Q4 2025.