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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.

New
Increased
Maintained
Reduced
Closed

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)

Holders
414
Holders Change
-14
Holders Change %
-3.27%
% of All Funds
5.1%
Holding in Top 10
2
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.02%
New
67
Increased
148
Reduced
136
Closed
70
Calls
$71.6M
Puts
$57.8M
Net Calls
+$13.9M
Net Calls Change
-$25.9M

Top Buyers

1
Invesco
Invesco
Georgia
+$46.1M
2
Citigroup
Citigroup
New York
+$37.2M
3
Millennium Management
Millennium Management
New York
+$20.5M
4
Capital World Investors
Capital World Investors
California
+$19.1M
5
Susquehanna International Group
Susquehanna International Group
Pennsylvania
+$17.5M

Top Sellers

1
DCM
Driehaus Capital Management
Illinois
-$87.6M
2
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$29.1M
3
Marshall Wace
Marshall Wace
United Kingdom
-$22.8M
4
Two Sigma Investments
Two Sigma Investments
New York
-$14.5M
5
Squarepoint
Squarepoint
New York
-$13.5M
Name Holding Trade Value Shares
Change 		Change in
Stake
Pictet Asset Management
201
Pictet Asset Management
Switzerland
$523K +$53.2K +408 +8%
IC
202
IEQ Capital
California
$516K +$678K +5,195 New
KWM
203
Keebeck Wealth Management
Illinois
$514K +$74.6K +572 +12%
P
204
&Partners
Tennessee
$511K -$208K -1,595 -24%
CWM
205
Cornerstone Wealth Management
Missouri
$507K -$2.48K -19 -0.4%
RCM
206
RB Capital Management
Nevada
$505K – – –
PM
207
Prosight Management
Texas
$497K +$652K +5,000 New
MSRPS
208
Maryland State Retirement & Pension System
Maryland
$494K -$5.61K -43 -0.9%
AWC
209
Abundance Wealth Counselors
Pennsylvania
$486K -$166K -1,271 -21%
PAG
210
Private Advisor Group
New Jersey
$469K +$616K +4,721 New
CWMS
211
CFG Wealth Management Services
Indiana
$466K +$612K +4,689 New
IB
212
Intrust Bank
Kansas
$461K +$11.2K +86 +2%
GIM
213
Generali Investments Management
Slovenia
$459K +$226K +1,736 +60%
Los Angeles Capital Management
214
Los Angeles Capital Management
California
$456K -$2.74M -20,970 -82%
IA
215
IFP Advisors
Florida
$441K +$22K +169 +4%
Financial Engines Advisors
216
Financial Engines Advisors
California
$438K +$5.61K +43 +1%
OL
217
Odyssean LLC
Connecticut
$436K +$573K +4,390 New
PF
218
Phoenix Financial
Israel
$434K +$193K +1,480 +51%
PWS
219
Precision Wealth Strategies
Missouri
$433K +$568K +4,357 New
IRP
220
Investment Research Partners
Pennsylvania
$433K +$50.3K +386 +10%
Envestnet Portfolio Solutions
221
Envestnet Portfolio Solutions
Illinois
$431K -$47.3K -363 -8%
DnB Asset Management
222
DnB Asset Management
Norway
$418K +$548K +4,202 New
AA
223
ALPS Advisors
Colorado
$399K -$391 -3 -0.1%
MOACM
224
Mutual of America Capital Management
New York
$389K +$652 +5 +0.1%
PAW
225
Plan A Wealth
Nebraska
$384K +$36.9K +283 +8%
7 8
9
10 11

TMDX Hedge Fund Activity: Q1 2026 in Review

414 of the 8,125 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.