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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, Q4 2024

Institutional positions in TransMedics Group, Inc. as of Dec 31, 2024. 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
315
−51 vs. Q3 2024
Shares held
36.9M
+417.8K (+1.1%) vs. Q3 2024
Total value
$2.30B
−$3.42B (−59.8%) vs. Q3 2024
New holders
74
131 more added
Sold out
125
84 more reduced

8 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2024: 315 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 heldQ4 2024: $2.30B
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, Q4 2024

Shares, value and share of portfolio for each institution holding TransMedics Group, Inc.; share changes are against Q3 2024.

Institutions holding TMDX in Q4 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Guidance Capital, Inc3,642$221.5K0.07%+1,284+54.5%Added
Cornerstone Wealth Management, LLC3,707$231.1K0.02%+3,707New
Public Employees Retirement Association of Colorado3,726$232.0K0.00%00.0%Unchanged
Janney Montgomery Scott LLC3,827$239.0K0.00%+3,827New
Freestone Grove Partners LP3,865$241.0K0.00%+3,865New
Resources Investment Advisors, LLC.3,924$244.7K0.00%+3,924New
Fiduciary Alliance LLC3,960$246.9K0.02%+3,960New
Aigen Investment Management, LP4,000$249.4K0.04%+670+20.1%Added
AQR Capital Management LLC4,232$263.9K0.00%−4,937−53.8%Reduced
Tower Research Capital LLC (TRC)4,359$271.8K0.01%+4,103+1,602.7%Added
Pictet Asset Management Holding SA4,434$276.5K0.00%−274−5.8%Reduced
M&T Bank Corp4,597$286.9K0.00%−10,145−68.8%Reduced
Envestnet Portfolio Solutions, Inc.4,721$294.4K0.00%+317+7.2%Added
Claro Advisors LLC4,757$296.6K0.04%+4,757New
Catalyst Capital Advisors LLC4,800$299.3K0.01%00.0%Unchanged
Walleye Capital LLC4,812$300.0K0.00%+3,485+262.6%Added
Talbot Financial, LLC4,812$300.0K0.04%+4,812New
Black Swift Group, LLC5,000$311.8K0.07%−33,500−87.0%Reduced
Mutual of America Capital Management LLC5,083$316.9K0.00%+88+1.8%Added
Kestra Advisory Services, LLC5,099$317.9K0.00%+2,479+94.6%Added
Abundance Wealth Counselors5,529$345.0K0.08%+528+10.6%Added
Tempus Wealth Planning, LLC5,550$346.0K0.11%+5,550New
Clear Creek Financial Management, LLC5,638$351.5K0.04%+5,638New
Pitcairn Co5,646$352.0K0.02%+1,653+41.4%Added
Values First Advisors, Inc.5,682$354.2K0.20%−87−1.5%Reduced
Cahill Wealth Management, LLC5,920$369.1K0.19%+2,434+69.8%Added
Bank Julius Baer & Co. Ltd, Zurich5,403$371.8K0.00%+693+14.7%Added
SG Americas Securities, LLC6,083$379.0K0.00%−2,276−27.2%Reduced
MML Investors Services, LLC6,243$389.0K0.00%+2,120+51.4%Added
Henshaw Capital LLC6,254$389.9K0.02%+379+6.5%Added
KLP Kapitalforvaltning AS6,400$399.0K0.00%+6,400New
Atria Wealth Solutions, Inc.6,769$422.0K0.00%−1,900−21.9%Reduced
Sit Investment Associates Inc6,780$423.0K0.01%+6,780New
IFP Advisors, Inc6,783$423.0K0.01%+5,968+732.3%Added
Scientech Research LLC6,817$425.0K0.12%−4,554−40.0%Reduced
Police & Firemen's Retirement System of New Jersey6,836$426.2K0.00%+6,836New
Valmark Advisers, Inc.6,904$430.5K0.01%+101+1.5%Added
Cambridge Investment Research Advisors, Inc.7,049$440.0K0.00%+4,445+170.7%Added
Harbour Capital Advisors, LLC6,452$445.8K0.10%+1,611+33.3%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys7,165$446.7K0.00%+7,165New
D. E. Shaw & Co., Inc.7,242$451.5K0.00%+7,242New
Creative Planning7,288$454.4K0.00%−2,974−29.0%Reduced
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main7,290$454.5K0.00%+2,086+40.1%Added
Nomura Holdings Inc7,357$458.7K0.00%+7,357New
Apeiron Capital Ltd7,500$467.6K0.17%+7,500New
HighTower Advisors, LLC7,682$479.0K0.00%−15,456−66.8%Reduced
Gsa Capital Partners LLP7,698$480.0K0.04%+7,698New
New York State Teachers Retirement System7,749$483.0K0.00%00.0%Unchanged
State Board of Administration of Florida Retirement System7,753$483.4K0.00%−70−0.9%Reduced
Oregon Public Employees Retirement Fund7,883$491.5K0.01%−17−0.2%Reduced
Victory Capital Management Inc8,057$502.4K0.00%+3,488+76.3%Added
HB Wealth Management, LLC8,149$508.1K0.01%+2,689+49.2%Added
Cetera Investment Advisers8,260$515.0K0.00%+634+8.3%Added
CenterBook Partners LP8,369$521.8K0.03%+8,369New
State of Wisconsin Investment Board8,579$534.9K0.00%−19,997−70.0%Reduced
Park Avenue Securities LLC8,797$548.0K0.01%+322+3.8%Added
Jennison Associates LLC8,901$555.0K0.00%+8,901New
Stifel Financial Corp8,968$559.2K0.00%+1,544+20.8%Added
Pacific Point Advisors, LLC9,000$561.1K0.34%+9,000New
Zurcher Kantonalbank (Zurich Cantonalbank)9,219$574.8K0.00%+1,823+24.6%Added
Arizona State Retirement System9,668$602.8K0.00%+184+1.9%Added
Amalgamated Bank9,830$613.0K0.01%+56+0.6%Added
Gladstone Institutional Advisory LLC9,859$614.7K0.03%+9,859New
Commonwealth Equity Services, LLC9,905$618.0K0.00%+1,460+17.3%Added
Marex Group plc10,000$623.5K0.01%+4,000+66.7%Added
ProShare Advisors LLC10,064$627.5K0.00%+3,870+62.5%Added
Brevan Howard Capital Management LP10,114$630.6K0.02%+10,114New
Teachers Retirement System of the State of Kentucky11,070$690.0K0.01%+8,280+296.8%Added
Credit Agricole S A11,150$695.2K0.00%+8,955+408.0%Added
Headlands Technologies LLC11,260$702.1K0.07%−809−6.7%Reduced
Maryland State Retirement & Pension System11,302$704.7K0.02%+69+0.6%Added
Campbell Newman Asset Management Inc11,453$714.1K0.06%−246−2.1%Reduced
D.A. Davidson & Co.11,482$715.9K0.01%+1,487+14.9%Added
BNP Paribas Arbitrage, SA11,548$720.0K0.00%+1,170+11.3%Added
Voya Investment Management LLC11,708$730.0K0.00%+1,309+12.6%Added
Pacific Capital Partners Ltd12,000$748.2K0.44%+2,218+22.7%Added
Mariner, LLC12,156$757.9K0.00%−512−4.0%Reduced
Public Employees Retirement System of Ohio12,221$762.0K0.00%00.0%Unchanged
J.W. Cole Advisors, Inc.12,384$772.1K0.03%+2,127+20.7%Added
Two Sigma Investments, LP12,523$780.8K0.00%+12,523New
Algert Global LLC12,554$782.7K0.02%−26,494−67.8%Reduced
Yousif Capital Management, LLC12,954$807.7K0.01%+1,652+14.6%Added
Perigon Wealth Management, LLC14,277$828.4K0.02%+9,707+212.4%Added
State of Tennessee, Treasury Department13,313$830.1K0.00%+13,313New
Advisor Group Holdings, Inc.15,009$935.7K0.00%−47,224−75.9%Reduced
Franklin Resources Inc15,040$937.7K0.00%−255,541−94.4%Reduced
Janus Henderson Group PLC15,463$964.6K0.00%00.0%Unchanged
Nisa Investment Advisors, LLC15,568$970.7K0.00%−23−0.1%Reduced
Louisiana State Employees Retirement System16,200$1.01M0.02%+100+0.6%Added
Pathstone Holdings, LLC16,671$1.04M0.00%−9,710−36.8%Reduced
Winton Group Ltd17,389$1.08M0.07%+17,389New
Corebridge Financial, Inc.17,486$1.09M0.01%−987−5.3%Reduced
Royal Bank of Canada17,978$1.12M0.00%−2,436−11.9%Reduced
Eagle Health Investments LP18,061$1.13M0.28%00.0%Unchanged
Manufacturers Life Insurance Company, The18,247$1.14M0.00%−226−1.2%Reduced
Mirae Asset Global ETFs Holdings Ltd.18,657$1.16M0.00%+1,096+6.2%Added
State of Alaska, Department of Revenue19,074$1.19M0.01%+2,766+17.0%Added
MetLife Investment Management19,640$1.22M0.01%+1,116+6.0%Added
Abn Amro Investment Solutions19,732$1.23M0.02%+1,262+6.8%Added
SEI Investments Co20,266$1.26M0.00%−95,943−82.6%Reduced