Transmedics
TMDX
414 hedge funds and large institutions have $3.62B invested in Transmedics in 2026 Q1 according to their latest regulatory filings, with 67 funds opening new positions, 148 increasing their positions, 136 reducing their positions, and 70 closing their positions.
24% more call options, than puts
Call options by funds: $71.6M | Put options by funds: $57.8M
9% more repeat investments, than reductions
Existing positions increased: 148 | Existing positions reduced: 136
0% more funds holding in top 10
Funds holding in top 10: 2 → 2 (0)
4% less first-time investments, than exits
New positions opened: 67 | Existing positions closed: 70
2.59% less ownership
Funds ownership: 108.83% → 106.24% (-2.6%)
3% less funds holding
Funds holding: 428 → 414 (-14)
20% less capital invested
Capital invested by funds: $4.53B → $3.62B (-$903M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Invesco
Atlanta,
Georgia
|
+$46.1M |
| 2 |
Citigroup
New York
|
+$37.2M |
| 3 |
Millennium Management
New York
|
+$20.5M |
| 4 |
Capital World Investors
Los Angeles,
California
|
+$19.1M |
| 5 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
+$17.5M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
DCM
Driehaus Capital Management
Chicago,
Illinois
|
-$87.6M |
| 2 |
T. Rowe Price Associates
Baltimore,
Maryland
|
-$29.1M |
| 3 |
Marshall Wace
London,
United Kingdom
|
-$22.8M |
| 4 |
Two Sigma Investments
New York
|
-$14.5M |
| 5 |
Squarepoint
New York
|
-$13.5M |
TMDX Hedge Fund Activity: Q1 2026 in Review
414 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Transmedics (TMDX) for Q1 2026, worth a combined $3.62B — down 20% from $4.53B a quarter earlier.
Sellers outnumbered buyers: 70 funds closed out of TMDX and 67 opened new positions — a net loss of 3 holders — while 136 trimmed existing stakes and 148 added.
The largest buyer was Invesco, adding an estimated $46.1M. The largest seller was Driehaus Capital Management, cutting an estimated $87.6M.
- 414 institutional investors held Transmedics (TMDX) as of Q1 2026, down from 428 in Q4 2025.
- Funds reported $3.62B of Transmedics stock for Q1 2026, down 20% quarter-over-quarter.
- 67 funds opened new Transmedics positions in Q1 2026 and 70 closed out, a net change of -3 holders.
- The largest Transmedics buyer in Q1 2026 was Invesco, an estimated $46.1M added.
- The largest Transmedics seller in Q1 2026 was Driehaus Capital Management, an estimated $87.6M sold.
Based on aggregated 13F filings for Q1 2026.