Merit Medical Systems
MMSI
400 hedge funds and large institutions have $4.1B invested in Merit Medical Systems in 2026 Q1 according to their latest regulatory filings, with 70 funds opening new positions, 162 increasing their positions, 126 reducing their positions, and 53 closing their positions.
174,429% more call options, than puts
Call options by funds: $59.3M | Put options by funds: $34K
32% more first-time investments, than exits
New positions opened: 70 | Existing positions closed: 53
29% more repeat investments, than reductions
Existing positions increased: 162 | Existing positions reduced: 126
3% more funds holding
Funds holding: 390 → 400 (+10)
4.83% less ownership
Funds ownership: 104.93% → 100.09% (-4.8%)
25% less capital invested
Capital invested by funds: $5.48B → $4.1B (-$1.38B)
100% less funds holding in top 10
Funds holding in top 10: 2 → 0 (-2)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Massachusetts Financial Services
Boston,
Massachusetts
|
+$35M |
| 2 |
Marshall Wace
London,
United Kingdom
|
+$33.4M |
| 3 |
FGP
Freestone Grove Partners
San Francisco,
California
|
+$24.8M |
| 4 |
Fifth Third Bancorp
Cincinnati,
Ohio
|
+$24.4M |
| 5 |
Point72 Asset Management
Stamford,
Connecticut
|
+$23.9M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
-$79.9M |
| 2 |
Fidelity Investments
Boston,
Massachusetts
|
-$59.9M |
| 3 |
Thrivent Financial for Lutherans
Minneapolis,
Minnesota
|
-$53.4M |
| 4 |
VOYA Investment Management
Atlanta,
Georgia
|
-$35.4M |
| 5 |
Walleye Capital
New York
|
-$31.9M |
MMSI Hedge Fund Activity: Q1 2026 in Review
400 of the 8,177 institutional investors tracked by Wall St. Rank reported a position in Merit Medical Systems (MMSI) for Q1 2026, worth a combined $4.1B — down 25% from $5.48B a quarter earlier.
Buyers outnumbered sellers: 70 funds opened new MMSI positions and 53 closed out — a net gain of 17 holders — while 162 added to existing stakes and 126 trimmed.
The largest buyer was Massachusetts Financial Services, opening a new position worth an estimated $35M. The largest seller was Wellington Management Group, cutting an estimated $79.9M.
- 400 institutional investors held Merit Medical Systems (MMSI) as of Q1 2026, up from 390 in Q4 2025.
- Funds reported $4.1B of Merit Medical Systems stock for Q1 2026, down 25% quarter-over-quarter.
- 70 funds opened new Merit Medical Systems positions in Q1 2026 and 53 closed out, a net change of +17 holders.
- The largest Merit Medical Systems buyer in Q1 2026 was Massachusetts Financial Services, an estimated $35M added.
- The largest Merit Medical Systems seller in Q1 2026 was Wellington Management Group, an estimated $79.9M sold.
Based on aggregated 13F filings for Q1 2026.