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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, Q1 2025

Institutional positions in TransMedics Group, Inc. as of Mar 31, 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
298
−13 vs. Q4 2024
Shares held
39.1M
+2.29M (+6.2%) vs. Q4 2024
Total value
$2.63B
+$336.1M (+14.7%) vs. Q4 2024
New holders
51
121 more added
Sold out
64
91 more reduced

4 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2024: 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 holdersQ1 2025: 298 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 heldQ1 2025: $2.63B
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, Q1 2025

Shares, value and share of portfolio for each institution holding TransMedics Group, Inc.; share changes are against Q4 2024.

Institutions holding TMDX in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Dana Investment Advisors, Inc.21,430$1.44M0.05%−977−4.4%Reduced
LPL Financial LLC19,545$1.31M0.00%−6,841−25.9%Reduced
Mirae Asset Global ETFs Holdings Ltd.19,525$1.31M0.00%+868+4.7%Added
MetLife Investment Management19,363$1.30M0.01%−277−1.4%Reduced
XTX Topco Ltd19,342$1.30M0.07%+19,342New
Perigon Wealth Management, LLC18,820$1.27M0.03%+4,543+31.8%Added
State of Alaska, Department of Revenue18,597$1.25M0.01%−477−2.5%Reduced
HighTower Advisors, LLC18,257$1.23M0.00%+10,575+137.7%Added
D. E. Shaw & Co., Inc.17,909$1.20M0.00%+10,667+147.3%Added
Manufacturers Life Insurance Company, The17,596$1.18M0.00%−651−3.6%Reduced
Daiwa Securities Group Inc.17,300$1.16M0.00%+17,300New
Corebridge Financial, Inc.17,148$1.15M0.01%−338−1.9%Reduced
Simplex Trading, LLC16,641$1.12M0.04%−11,505−40.9%Reduced
Nisa Investment Advisors, LLC15,824$1.06M0.01%+256+1.6%Added
Louisiana State Employees Retirement System15,800$1.06M0.02%−400−2.5%Reduced
Global Assets Advisory, LLC14,900$1.05M0.20%+14,900New
Twinbeech Capital LP14,934$1.00M0.02%+14,934New
Franklin Resources Inc14,694$988.6K0.00%−346−2.3%Reduced
Advisor Group Holdings, Inc.14,217$956.5K0.00%−792−5.3%Reduced
SG Americas Securities, LLC14,126$950.0K0.00%+8,043+132.2%Added
Commonwealth Equity Services, LLC14,089$948.0K0.00%+4,184+42.2%Added
Algert Global LLC13,674$920.0K0.02%+1,120+8.9%Added
Mariner, LLC13,226$889.8K0.00%+1,070+8.8%Added
D.A. Davidson & Co.12,924$869.5K0.01%+1,442+12.6%Added
Engineers Gate Manager LP12,877$866.4K0.01%+12,877New
Yousif Capital Management, LLC12,631$849.8K0.01%−323−2.5%Reduced
Aster Capital Management (DIFC) Ltd10,713$817.6K0.15%+10,713New
Verition Fund Management LLC12,048$810.6K0.00%+12,048New
Bayesian Capital Management, LP11,855$797.6K0.13%+11,855New
Cambridge Investment Research Advisors, Inc.11,692$787.0K0.00%+4,643+65.9%Added
Campbell Newman Asset Management Inc11,619$781.7K0.07%+166+1.4%Added
Creative Planning11,598$780.3K0.00%+4,310+59.1%Added
Balyasny Asset Management LLC11,475$772.0K0.00%+11,475New
HRT Financial LP11,469$771.0K0.00%+11,469New
Teachers Retirement System of the State of Kentucky11,070$745.0K0.01%00.0%Unchanged
Public Employees Retirement System of Ohio11,023$741.6K0.00%−1,198−9.8%Reduced
BNP Paribas Arbitrage, SA11,013$741.0K0.00%−535−4.6%Reduced
Sugar Maple Asset Management, LLC11,000$740.1K0.58%+11,000New
HB Wealth Management, LLC10,627$715.0K0.01%+2,478+30.4%Added
Pathstone Holdings, LLC10,272$691.1K0.00%−6,399−38.4%Reduced
Handelsbanken Fonder AB9,900$666.0K0.00%−72,000−87.9%Reduced
Maryland State Retirement & Pension System9,758$656.5K0.02%−1,544−13.7%Reduced
Arizona State Retirement System9,593$645.4K0.00%−75−0.8%Reduced
Amalgamated Bank9,506$640.0K0.01%−324−3.3%Reduced
Stifel Financial Corp9,399$632.4K0.00%+431+4.8%Added
Zurcher Kantonalbank (Zurich Cantonalbank)9,219$620.3K0.00%00.0%Unchanged
Jennison Associates LLC9,217$620.1K0.00%+316+3.6%Added
Cahill Wealth Management, LLC8,987$604.6K0.31%+3,067+51.8%Added
Voya Investment Management LLC8,818$593.3K0.00%−2,890−24.7%Reduced
Janney Montgomery Scott LLC8,799$592.0K0.00%+4,972+129.9%Added
Victory Capital Management Inc8,365$562.8K0.00%+308+3.8%Added
Headlands Technologies LLC8,357$562.3K0.06%−2,903−25.8%Reduced
State of Tennessee, Treasury Department8,268$556.3K0.00%−5,045−37.9%Reduced
Commonwealth of Pennsylvania Public School Empls Retrmt Sys8,032$540.4K0.00%+867+12.1%Added
ProShare Advisors LLC7,910$532.2K0.00%−2,154−21.4%Reduced
Gladstone Institutional Advisory LLC7,859$528.8K0.02%−2,000−20.3%Reduced
State Board of Administration of Florida Retirement System7,753$521.6K0.00%00.0%Unchanged
Oregon Public Employees Retirement Fund7,683$516.9K0.01%−200−2.5%Reduced
Versor Investments LP7,476$503.0K0.08%+7,476New
Henshaw Capital LLC7,443$500.8K0.02%+1,189+19.0%Added
Quadrant Capital Group LLC7,428$499.8K0.02%+7,134+2,426.5%Added
Sit Investment Associates Inc7,380$497.0K0.01%+600+8.8%Added
CIBC World Markets Corp7,276$489.5K0.00%+7,276New
Police & Firemen's Retirement System of New Jersey7,239$487.0K0.00%+403+5.9%Added
Valmark Advisers, Inc.7,213$485.3K0.01%+309+4.5%Added
Wiley Bros.-Aintree Capital, LLC7,046$483.2K0.01%+7,046New
Russell Investments Group, Ltd.6,963$468.5K0.00%+6,928+19,794.3%Added
MML Investors Services, LLC6,806$458.0K0.00%+563+9.0%Added
Abundance Wealth Counselors6,747$454.0K0.10%+1,218+22.0%Added
Gsa Capital Partners LLP6,425$432.0K0.04%−1,273−16.5%Reduced
KLP Kapitalforvaltning AS6,400$430.6K0.00%00.0%Unchanged
Harbour Capital Advisors, LLC6,062$430.2K0.11%−390−6.0%Reduced
Cornerstone Wealth Management, LLC6,247$420.3K0.03%+2,540+68.5%Added
Tempus Wealth Planning, LLC6,058$407.6K0.12%+508+9.2%Added
Bank Julius Baer & Co. Ltd, Zurich6,030$405.7K0.00%+627+11.6%Added
Resources Investment Advisors, LLC.5,989$402.9K0.00%+2,065+52.6%Added
Clear Creek Financial Management, LLC5,963$401.2K0.04%+325+5.8%Added
Gilder Gagnon Howe & Co LLC5,859$394.2K0.01%+5,859New
IFP Advisors, Inc5,836$392.8K0.01%−947−14.0%Reduced
Pitcairn Co5,718$384.7K0.02%+72+1.3%Added
Values First Advisors, Inc.5,637$380.2K0.22%−45−0.8%Reduced
Nomura Holdings Inc5,150$346.5K0.00%−2,207−30.0%Reduced
Allianz Asset Management GmbH5,100$343.1K0.00%+5,100New
Warren Averett Asset Management, LLC4,991$335.8K0.00%+4,991New
State of Wisconsin Investment Board4,934$332.0K0.00%−3,645−42.5%Reduced
Legato Capital Management LLC4,930$331.7K0.04%+4,930New
Teacher Retirement System of Texas4,905$330.0K0.00%+4,905New
Bastion Asset Management Inc.4,740$329.6K0.18%−33,596−87.6%Reduced
Mutual of America Capital Management LLC4,888$328.9K0.00%−195−3.8%Reduced
Nebula Research & Development LLC4,827$324.8K0.03%+4,827New
Guidance Capital, Inc3,583$322.4K0.10%−59−1.6%Reduced
Kestra Advisory Services, LLC4,551$306.2K0.00%−548−10.7%Reduced
Pictet Asset Management Holding SA4,434$298.3K0.00%00.0%Unchanged
Vontobel Holding Ltd.4,326$291.1K0.00%+4,326New
FORA Capital, LLC4,161$280.0K0.03%−24,514−85.5%Reduced
Cetera Investment Advisers4,033$271.3K0.00%−4,227−51.2%Reduced
HSBC Holdings PLC3,804$254.3K0.00%−83,694−95.7%Reduced
Public Employees Retirement Association of Colorado3,726$251.0K0.00%00.0%Unchanged
SBI Securities Co., Ltd.3,684$247.9K0.01%+661+21.9%Added
Sandhill Capital Partners LLC3,627$244.0K0.02%−174,383−98.0%Reduced