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TransMedics Group, Inc.

TMDX
Exchange
Nasdaq
Industry
Electromedical & Electrotherapeutic Apparatus
SEC CIK
0001756262

In the last 90 days, TransMedics Group, Inc. insiders filed 1 open-market purchase and 0 sales; 375 institutions reported holding it in 13F filings for Q2 2026, worth $2.31B in total; no superinvestor holds it.

13F holders, Q2 2025

Institutional positions in TransMedics Group, Inc. as of Jun 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
368
+73 vs. Q1 2025
Shares held
36.8M
−2.24M (−5.7%) vs. Q1 2025
Total value
$4.93B
+$2.30B (+87.6%) vs. Q1 2025
New holders
104
117 more added
Sold out
31
113 more reduced

3 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting TMDX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2025: 368 institutions
Q1 2021: 107 institutionsQ2 2021: 124 institutionsQ3 2021: 120 institutionsQ4 2021: 121 institutionsQ1 2022: 110 institutionsQ2 2022: 135 institutionsQ3 2022: 178 institutionsQ4 2022: 200 institutionsQ1 2023: 225 institutionsQ2 2023: 240 institutionsQ3 2023: 222 institutionsQ4 2023: 249 institutionsQ1 2024: 262 institutionsQ2 2024: 340 institutionsQ3 2024: 374 institutionsQ4 2024: 315 institutionsQ1 2025: 298 institutionsQ2 2025: 368 institutionsQ3 2025: 388 institutionsQ4 2025: 429 institutionsQ1 2026: 416 institutionsQ2 2026: 375 institutions
Value heldQ2 2025: $4.93B
Q1 2021: $773.0MQ2 2021: $623.5MQ3 2021: $636.5MQ4 2021: $384.7MQ1 2022: $561.4MQ2 2022: $719.7MQ3 2022: $1.18BQ4 2022: $1.79BQ1 2023: $2.26BQ2 2023: $2.73BQ3 2023: $1.91BQ4 2023: $2.76BQ1 2024: $2.52BQ2 2024: $5.09BQ3 2024: $5.74BQ4 2024: $2.30BQ1 2025: $2.63BQ2 2025: $4.93BQ3 2025: $4.17BQ4 2025: $4.53BQ1 2026: $3.63BQ2 2026: $2.31B
Institutions holding TMDX and their total value by quarter
QuarterHoldersValue
Q2 2026375$2.31B
Q1 2026416$3.63B
Q4 2025429$4.53B
Q3 2025388$4.17B
Q2 2025368$4.93B
Q1 2025298$2.63B
Q4 2024315$2.30B
Q3 2024374$5.74B
Q2 2024340$5.09B
Q1 2024262$2.52B
Q4 2023249$2.76B
Q3 2023222$1.91B
Q2 2023240$2.73B
Q1 2023225$2.26B
Q4 2022200$1.79B
Q3 2022178$1.18B
Q2 2022135$719.7M
Q1 2022110$561.4M
Q4 2021121$384.7M
Q3 2021120$636.5M
Q2 2021124$623.5M
Q1 2021107$773.0M

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding TransMedics Group, Inc.; share changes are against Q1 2025.

Institutions holding TMDX in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Umb Bank N A349$46.8K0.00%+48+15.9%Added
Chilton Capital Management LLC300$40.2K0.00%00.0%Unchanged
Farther Finance Advisors, LLC281$37.7K0.00%+83+41.9%Added
Fifth Third Bancorp236$31.6K0.00%−14−5.6%Reduced
Parallel Advisors, LLC204$27.3K0.00%−8−3.8%Reduced
Global Retirement Partners, LLC197$26.4K0.00%+197New
Clearstead Advisors, LLC196$26.3K0.00%+24+14.0%Added
Opal Wealth Advisors, LLC191$25.6K0.01%+191New
Skopos Labs, Inc.183$24.5K0.00%+67+57.8%Added
Covestor Ltd174$23.0K0.01%−2−1.1%Reduced
Bessemer Group Inc173$23.0K0.00%+16+10.2%Added
ORG Partners LLC174$22.6K0.00%+164+1,640.0%Added
Huntington National Bank168$22.5K0.00%−37−18.0%Reduced
Massmutual Trust Co FSB163$21.8K0.00%+10+6.5%Added
MAI Capital Management152$20.4K0.00%−848−84.8%Reduced
Allworth Financial LP152$20.4K0.00%+90+145.2%Added
Trust Co of Vermont150$20.1K0.00%−35−18.9%Reduced
Maseco LLP141$18.9K0.00%+141New
MCF Advisors LLC140$18.8K0.00%+140New
First Horizon Advisors, Inc.115$15.4K0.00%+93+422.7%Added
City State Bank100$13.4K0.00%00.0%Unchanged
Danske Bank A/S100$13.4K0.00%+100New
SRS Capital Advisors, Inc.94$12.6K0.00%+1+1.1%Added
Asset Dedication, LLC92$12.3K0.00%00.0%Unchanged
Twin Peaks Wealth Advisors, LLC90$11.8K0.00%+90New
Aster Capital Management (DIFC) Ltd84$11.3K0.00%−10,629−99.2%Reduced
Rothschild Investment LLC82$11.0K0.00%+15+22.4%Added
Parkside Financial Bank & Trust81$10.9K0.00%+10+14.1%Added
Sterling Capital Management LLC80$10.7K0.00%+45+128.6%Added
Indiana Trust & Investment Management CO80$10.7K0.00%+80New
Optiver Holding B.V.77$10.3K0.00%+30+63.8%Added
Harbor Investment Advisory, LLC74$9.92K0.00%00.0%Unchanged
Mark Sheptoff Financial Planning, LLC69$9.25K0.00%00.0%Unchanged
National Bank of Canada68$9.10K0.00%−17−20.0%Reduced
Leonteq Securities AG58$7.77K0.00%−3,086−98.2%Reduced
Truvestments Capital LLC57$7.64K0.00%00.0%Unchanged
HighMark Wealth Management LLC40$5.36K0.00%00.0%Unchanged
Bare Financial Services, Inc33$4.42K0.00%+16+94.1%Added
Annis Gardner Whiting Capital Advisors, LLC30$4.02K0.00%+30New
LRI Investments, LLC29$3.90K0.00%00.0%Unchanged
Brown Brothers Harriman & Co24$3.22K0.00%+24New
Larson Financial Group LLC23$3.08K0.00%+23New
Prestige Wealth Management Group LLC22$2.95K0.00%−1−4.3%Reduced
Northwestern Mutual Wealth Management Co22$2.95K0.00%−14−38.9%Reduced
Whittier Trust Co of Nevada Inc21$2.81K0.00%00.0%Unchanged
Farmers & Merchants Investments Inc20$2.68K0.00%00.0%Unchanged
Principal Securities, Inc.19$2.55K0.00%+19New
Wolff Wiese Magana LLC17$2.28K0.00%00.0%Unchanged
Private Trust Co NA16$2.14K0.00%+16New
Atlantic Trust, LLC15$2.01K0.00%+15New
Capital Advisors, Ltd. LLC14$2.00K0.00%+2+16.7%Added
Hantz Financial Services, Inc.14$2.00K0.00%+12+600.0%Added
Highline Wealth Partners LLC13$1.74K0.00%00.0%Unchanged
Bell Investment Advisors, Inc12$1.61K0.00%+5+71.4%Added
Steward Partners Investment Advisory, LLC11$1.47K0.00%−97−89.8%Reduced
Bogart Wealth, LLC9$1.21K0.00%00.0%Unchanged
SJS Investment Consulting Inc.7$9390.00%+7New
Whipplewood Advisors, LLC4$5360.00%−97−96.0%Reduced
Assetmark, Inc4$5360.00%00.0%Unchanged
GeoWealth Management, LLC4$5360.00%+4New
ZRC Wealth Management, LLC3$4030.00%00.0%Unchanged
UMA Financial Services, Inc.3$4030.00%+3New
NewSquare Capital LLC3$4020.00%+3New
Abound Wealth Management2$2690.00%00.0%Unchanged
Stephens Consulting, LLC1$1350.00%−9−90.0%Reduced
Bryn Mawr Trust Co1$1340.00%−1,600−99.9%Reduced
Sierra Ocean, LLC1$1340.00%00.0%Unchanged
Concord Wealth Partners1$1340.00%+1New
First Light Asset Management, LLC0$00.00%−107,860−100.0%Sold out
Eagle Health Investments LP0$00.00%−100,661−100.0%Sold out
Portolan Capital Management, LLC0$00.00%−47,536−100.0%Sold out
Aquatic Capital Management LLC0$00.00%−33,290−100.0%Sold out
Voloridge Investment Management, LLC0$00.00%−24,398−100.0%Sold out
Daiwa Securities Group Inc.0$00.00%−17,300−100.0%Sold out
Corebridge Financial, Inc.0$00.00%−17,148−100.0%Sold out
HRT Financial LP0$00.00%−11,469−100.0%Sold out
Jennison Associates LLC0$00.00%−9,217−100.0%Sold out
Headlands Technologies LLC0$00.00%−8,357−100.0%Sold out
Versor Investments LP0$00.00%−7,476−100.0%Sold out
Gsa Capital Partners LLP0$00.00%−6,425−100.0%Sold out
Tempus Wealth Planning, LLC0$00.00%−6,058−100.0%Sold out
Clear Creek Financial Management, LLC0$00.00%−5,963−100.0%Sold out
Nomura Holdings Inc0$00.00%−5,150−100.0%Sold out
Allianz Asset Management GmbH0$00.00%−5,100−100.0%Sold out
Warren Averett Asset Management, LLC0$00.00%−4,991−100.0%Sold out
Bastion Asset Management Inc.0$00.00%−4,740−100.0%Sold out
Nebula Research & Development LLC0$00.00%−4,827−100.0%Sold out
Guidance Capital, Inc0$00.00%−3,583−100.0%Sold out
FORA Capital, LLC0$00.00%−4,161−100.0%Sold out
Campbell & CO Investment Adviser LLC0$00.00%−3,040−100.0%Sold out
Farallon Capital Management, L.L.C.0$00.00%−3,000−100.0%Sold out
Group One Trading, L.P.0$00.00%−1,899−100.0%Sold out
Coldstream Capital Management Inc0$00.00%−1,314−100.0%Sold out
Boston Private Wealth LLC0$00.00%−168−100.0%Sold out
Ameriflex Group, Inc.0$00.00%−100−100.0%Sold out
Sunbelt Securities, Inc.0$00.00%−65−100.0%Sold out
Caitong International Asset Management Co., Ltd0$00.00%−41−100.0%Sold out
High Note Wealth, LLC0$00.00%−19−100.0%Sold out
Continuum Advisory, LLC0$00.00%−3−100.0%Sold out
Credit Agricole S A––––Not filed