TMDXTransMedics Group, Inc.

$92.21

Who owns TMDX

408 institutions reported holding TMDX for 2026Q1, together 101% of the company, fewer than the 421 a quarter earlier.

408

Institutions reporting a position · as of 2026Q1 · down from 421 the quarter before

Shares held by institutions
36.4M

Shares held by institutions · 101% of the company · long US equity positions only, as reported on Form 13F

Reported value
$3.62B

Reported value · at 2026-03-31 prices, not today's

Top 5 holders
45%

Top 5 holders · of the whole company, between five filers

Details
Reporting quarter2026-03-31
2026Q1
Quarters on record
28
New positions
62
Positions exited
78
Added to
135
Reduced
120
Top 10 holdersof the company
57%
Institutional ownership by quarter, 2019Q2 to 2026Q1
QuarterFilersSharesReported value
2026Q140836.4M$3.62B
2025Q442137.1M$4.52B
2025Q338437.0M$4.16B
2025Q236336.7M$4.92B
2025Q129639.0M$2.63B
2024Q431336.8M$2.29B
2024Q337136.6M$5.74B
2024Q233833.8M$5.09B
2024Q126134.1M$2.52B
2023Q424635.0M$2.76B
2023Q322034.9M$1.91B
2023Q224032.5M$2.73B
2023Q122229.9M$2.26B
2022Q419828.9M$1.79B
2022Q317928.3M$1.18B
2022Q213322.9M$719M
Largest reported holders, 2026Q1
HolderShares% of companyValue
BlackRock Inc.5.3M15%$526M
FMR LLC5.1M14%$507M
VANGUARD GROUP INC3.7M10%$367M
STATE STREET CORP1.3M3.6%$131M
Invesco Ltd.1.0M2.9%$103M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC0.9M2.6%$93M
NOMURA HOLDINGS INC0.9M2.4%$88M
GOLDMAN SACHS GROUP INC0.9M2.4%$86M
GEODE CAPITAL MANAGEMENT LLC0.8M2.3%$83M
Hood River Capital Management LLC0.7M1.9%$70M

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.

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