Merit Medical Systems
MMSI
379 hedge funds and large institutions have $5.86B invested in Merit Medical Systems in 2025 Q2 according to their latest regulatory filings, with 53 funds opening new positions, 142 increasing their positions, 134 reducing their positions, and 50 closing their positions.
2,164% more call options, than puts
Call options by funds: $85.5M | Put options by funds: $3.78M
6% more first-time investments, than exits
New positions opened: 53 | Existing positions closed: 50
6% more repeat investments, than reductions
Existing positions increased: 142 | Existing positions reduced: 134
0% more funds holding
Funds holding: 379 → 379 (0)
0% more funds holding in top 10
Funds holding in top 10: 3 → 3 (0)
1.3% less ownership
Funds ownership: 107.28% → 105.98% (-1.3%)
12% less capital invested
Capital invested by funds: $6.67B → $5.86B (-$816M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Citadel Advisors
Miami,
Florida
|
+$37.7M |
| 2 |
Millennium Management
New York
|
+$24.6M |
| 3 |
Vanguard Group
Malvern,
Pennsylvania
|
+$24.4M |
| 4 |
Two Sigma Advisers
New York
|
+$22.3M |
| 5 |
Franklin Resources
San Mateo,
California
|
+$17.2M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
-$43.6M |
| 2 |
ACH
ArrowMark Colorado Holdings
Denver,
Colorado
|
-$32.3M |
| 3 |
UBS Group
Zurich,
Switzerland
|
-$31.5M |
| 4 |
N
Nuveen
Charlotte,
North Carolina
|
-$31.1M |
| 5 |
DCM
Driehaus Capital Management
Chicago,
Illinois
|
-$24.1M |
MMSI Hedge Fund Activity: Q2 2025 in Review
379 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in Merit Medical Systems (MMSI) for Q2 2025, worth a combined $5.86B — down 12% from $6.67B a quarter earlier.
Buyers outnumbered sellers: 53 funds opened new MMSI positions and 50 closed out — a net gain of 3 holders — while 142 added to existing stakes and 134 trimmed.
The largest buyer was Citadel Advisors, adding an estimated $37.7M. The largest seller was BlackRock, cutting an estimated $43.6M.
- 379 institutional investors held Merit Medical Systems (MMSI) as of Q2 2025, unchanged from Q1 2025.
- Funds reported $5.86B of Merit Medical Systems stock for Q2 2025, down 12% quarter-over-quarter.
- 53 funds opened new Merit Medical Systems positions in Q2 2025 and 50 closed out, a net change of +3 holders.
- The largest Merit Medical Systems buyer in Q2 2025 was Citadel Advisors, an estimated $37.7M added.
- The largest Merit Medical Systems seller in Q2 2025 was BlackRock, an estimated $43.6M sold.
Based on aggregated 13F filings for Q2 2025.