TransMedics Group, Inc. (TMDX) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

377,167Shares held by institutions

$35,491,415Value of institutional holdings

90.21%Institutional ownership %

-8.90%Shares Changed QoQ

361No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

TransMedics Group, Inc. (NASDAQ:TMDX) is held by 411 institutional investors per 13F filings through December 2025.

Their combined ownership stood at 88.6% of outstanding shares in December 2025, down from 93.0% in September 2025.
Their total shares held in TMDX increased 2.04% from the prior quarter, while the number of investors in TransMedics increased 33.88% year over year.
Of these 411 holders, 232 added to their stakes in TransMedics, 126 trimmed positions, and 53 made no changes.
Institutional investors collectively held 36.08Mn shares in TransMedics as of December 2025, up by 720.18K shares quarter on quarter, and down 3.29Mn shares year over year.
BlackRock, Inc. leads ownership in TMDX with 5.4Mn shares as of December 31, 2025, equal to 13.24% of outstanding shares.
Top purchasers of TMDX stock for the quarter ending December 2025 included NOMURA ASSET MANAGEMENT INTERNATIONAL INC. (832.24K), Invesco Ltd. (298.77K), Goldman Sachs Group Inc (262.35K), WELLINGTON MANAGEMENT GROUP LLP (217.18K), Morgan Stanley (119.94K).
The largest sales of TMDX for the quarter ending December 2025 came from Jpmorgan Chase & Co (409.45K), MARSHALL WACE, LLP (351.21K), TWO SIGMA INVESTMENTS, LP (199.42K), UBS Group AG (196.77K), BROWN CAPITAL MANAGEMENT LLC (167.94K).
Per Business Quant data, the top 10 holders of TransMedics for the quarter ending December 2025 are BlackRock, Inc. (5.4Mn), FMR LLC (5.08Mn), VANGUARD GROUP INC (3.61Mn), State Street Corp (1.28Mn), UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC (996.88K), Goldman Sachs Group Inc (965.93K), NOMURA ASSET MANAGEMENT INTERNATIONAL INC. (832.24K), GEODE CAPITAL MANAGEMENT, LLC (816.47K), DRIEHAUS CAPITAL MANAGEMENT LLC (712.04K), Hood River Capital Management LLC (690.36K).

411 Institutional Holders

377,167 Total Shares Held

Rows:

Download Data

Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	63,634	1.19%	$0.00
FMR LLC	31 Dec, 2025	12,666	0.25%	$0.00
UBS Group AG	31 Dec, 2025	-196,767	-22.99%	$0.00
Barclays Plc	31 Dec, 2025	-192,953	-49.14%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	-328	-0.01%	$0.00
BRAIDWELL LP	31 Dec, 2025	-35,907	-10.22%	$0.00
Rockefeller Capital Management L.P.	31 Dec, 2025	-1,844	-82.25%	$0.00
State Street Corp	31 Dec, 2025	-4,408	-0.34%	$0.00
Squarepoint Ops LLC	31 Dec, 2025	-22,008	-16.61%	$0.00
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	31 Dec, 2025	-72,614	-6.79%	$0.00
Lagoda Investment Management, L.P.	31 Dec, 2025	-3,260	-3.02%	$0.00
Goldman Sachs Group Inc	31 Dec, 2025	262,353	37.29%	$0.00
Bellevue Group AG	31 Dec, 2025	-19,083	-16.31%	$0.00
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.	31 Dec, 2025	832,241	0.00%	$0.00
Man Group plc	31 Dec, 2025	-17,892	-15.76%	$0.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	2,903	0.36%	$0.00
Trexquant Investment LP	31 Dec, 2025	12,080	15.02%	$0.00
DRIEHAUS CAPITAL MANAGEMENT LLC	31 Dec, 2025	-26,117	-3.54%	$0.00
Universal- Beteiligungs- und Servicegesellschaft mbH	31 Dec, 2025	27,101	41.47%	$0.00
Hood River Capital Management LLC	31 Dec, 2025	11,920	1.76%	$0.00

1 - 20 of 411

Research Tools