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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 2024

Institutional positions in TransMedics Group, Inc. as of Mar 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
262
+16 vs. Q4 2023
Shares held
34.1M
−877.9K (−2.5%) vs. Q4 2023
Total value
$2.52B
−$242.7M (−8.8%) vs. Q4 2023
New holders
51
92 more added
Sold out
35
82 more reduced

3 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2023: 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 2024: 262 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 2024: $2.52B
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 2024

Shares, value and share of portfolio for each institution holding TransMedics Group, Inc.; share changes are against Q4 2023.

Institutions holding TMDX in Q1 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Natixis19,073$1.41M0.01%−4,972−20.7%Reduced
EFG Asset Management (North America) Corp.18,853$1.39M0.24%+6,213+49.2%Added
Oak Ridge Investments LLC18,267$1.35M0.14%+6,813+59.5%Added
Nebula Research & Development LLC17,656$1.31M0.28%+17,656New
BNP Paribas Arbitrage, SA17,390$1.29M0.00%+4,518+35.1%Added
Manufacturers Life Insurance Company, The16,946$1.25M0.00%+1,608+10.5%Added
Virtu Financial LLC16,921$1.25M0.10%+16,921New
Options Solutions, LLC16,798$1.24M0.71%+16,798New
Soleus Capital Management, L.P.16,700$1.23M0.11%−106,412−86.4%Reduced
MetLife Investment Management16,548$1.22M0.01%00.0%Unchanged
Mariner, LLC16,459$1.22M0.00%+200+1.2%Added
Pathstone Holdings, LLC16,409$1.21M0.01%+12,522+322.2%Added
SYSTM Wealth Solutions LLC15,851$1.17M0.15%+801+5.3%Added
American International Group, Inc.15,636$1.16M0.00%−135−0.9%Reduced
M&T Bank Corp15,571$1.15M0.00%+3,407+28.0%Added
Nisa Investment Advisors, LLC15,570$1.15M0.01%+28+0.2%Added
HighPoint Advisor Group LLC8,685$1.15M0.08%+1,045+13.7%Added
Comerica Bank14,422$1.07M0.00%+13,192+1,072.5%Added
Pacific Capital Partners Ltd14,373$1.06M0.70%+1,820+14.5%Added
Janus Henderson Group PLC14,198$1.05M0.00%+10.0%Added
Legato Capital Management LLC14,047$1.04M0.13%−3,880−21.6%Reduced
Wedbush Securities Inc14,029$1.04M0.04%+14,029New
Mirae Asset Global Investments Co., Ltd.13,240$988.9K0.00%−1,700−11.4%Reduced
Centiva Capital, LP13,266$980.9K0.06%+13,266New
Park Avenue Securities LLC11,374$841.0K0.01%+372+3.4%Added
Cetera Investment Advisers11,106$821.2K0.00%+2,603+30.6%Added
Franklin Resources Inc11,051$817.1K0.00%+1,939+21.3%Added
Dynamic Technology Lab Private Ltd10,476$775.0K0.08%−787−7.0%Reduced
Voya Investment Management LLC10,366$766.5K0.00%−2,286−18.1%Reduced
State Board of Administration of Florida Retirement System9,843$745.4K0.00%+780+8.6%Added
D.A. Davidson & Co.9,972$737.3K0.01%+752+8.2%Added
Values First Advisors, Inc.9,761$721.7K0.42%+1,096+12.6%Added
Royal Bank of Canada9,725$718.0K0.00%−17,134−63.8%Reduced
Eisler Capital (US) LLC9,662$714.4K0.24%+9,662New
Raymond James & Associates9,288$686.8K0.00%+4,695+102.2%Added
Arizona State Retirement System8,972$663.4K0.00%−150−1.6%Reduced
LPL Financial LLC8,824$652.4K0.00%−8,579−49.3%Reduced
Calamos Advisors LLC8,800$650.7K0.00%+8,800New
HRT Financial LP8,559$632.0K0.00%+8,559New
Congress Wealth Management LLC8,278$612.1K0.01%+8,278New
HighTower Advisors, LLC8,280$611.0K0.00%−977−10.6%Reduced
Stifel Financial Corp8,261$610.8K0.00%−2,668−24.4%Reduced
GWM Advisors LLC8,232$608.7K0.01%+7,087+619.0%Added
Harbour Capital Advisors, LLC8,371$607.9K0.15%00.0%Unchanged
Handelsbanken Fonder AB8,100$599.0K0.00%+900+12.5%Added
Atria Wealth Solutions, Inc.8,056$595.7K0.01%+2,796+53.2%Added
Principal Financial Group Inc7,980$590.0K0.00%−13,949−63.6%Reduced
Los Angeles Capital Management LLC7,756$573.5K0.00%−2,588−25.0%Reduced
Henshaw Capital LLC7,647$565.4K0.03%00.0%Unchanged
Catalyst Capital Advisors LLC7,500$554.5K0.01%+7,500New
Zurcher Kantonalbank (Zurich Cantonalbank)7,396$546.9K0.00%00.0%Unchanged
Twinbeech Capital LP7,303$540.0K0.01%+7,303New
Valmark Advisers, Inc.7,034$520.1K0.01%−266−3.6%Reduced
Verition Fund Management LLC6,816$504.0K0.00%+6,816New
Tudor Investment Corp Et Al6,751$499.2K0.01%−80,190−92.2%Reduced
Alpha DNA Investment Management LLC6,737$498.1K0.27%+400+6.3%Added
Courier Capital LLC6,655$492.1K0.04%00.0%Unchanged
Level Four Advisory Services, LLC6,117$482.8K0.03%+148+2.5%Added
Bridgewater Associates, LP6,289$465.0K0.00%−1,137−15.3%Reduced
Envestnet Portfolio Solutions, Inc.6,115$452.1K0.00%−146−2.3%Reduced
RiverPark Advisors, LLC6,082$449.7K0.37%+4,763+361.1%Added
Wolverine Trading, LLC6,064$448.4K0.00%+2,390+65.1%Added
Marex Group plc6,000$443.6K0.01%−1,006−14.4%Reduced
ProShare Advisors LLC5,871$434.1K0.00%+427+7.8%Added
Truist Financial Corp5,820$430.3K0.00%−6,642−53.3%Reduced
Citigroup Inc5,734$424.0K0.00%−5,638−49.6%Reduced
Advisory Services Network, LLC5,650$417.8K0.01%−1,804−24.2%Reduced
Pitcairn Co5,378$397.6K0.03%+78+1.5%Added
Creative Planning5,146$380.5K0.00%+599+13.2%Added
Cresset Asset Management, LLC5,136$379.8K0.00%+5,136New
Wealth Enhancement Advisory Services, LLC5,056$373.8K0.00%+5,056New
Abundance Wealth Counselors5,030$372.0K0.09%+85+1.7%Added
Black Swift Group, LLC5,000$369.7K0.09%+5,000New
Bank Julius Baer & Co. Ltd, Zurich4,779$353.4K0.00%+4,779New
Lakeview Capital Partners, LLC4,582$338.8K0.06%−40−0.9%Reduced
DnB Asset Management AS4,516$333.9K0.00%+4,516New
Public Employees Retirement Association of Colorado4,319$319.0K0.00%00.0%Unchanged
Pictet Asset Management Holding SA4,146$306.6K0.00%00.0%Unchanged
Victory Capital Management Inc4,142$306.3K0.00%−97−2.3%Reduced
Glenmede Trust Co NA4,115$304.3K0.00%−1,287−23.8%Reduced
Commonwealth Equity Services, LLC4,006$296.0K0.00%+544+15.7%Added
Bank of Hawaii3,886$287.3K0.01%−25,986−87.0%Reduced
Sherbrooke Park Advisers LLC3,862$285.6K0.06%+3,862New
Venture Visionary Partners LLC3,700$273.6K0.01%+3,700New
Occudo Quantitative Strategies LP3,510$259.5K0.05%+3,510New
Cubist Systematic Strategies, LLC3,417$252.7K0.00%−22,781−87.0%Reduced
AQR Capital Management LLC3,368$249.0K0.00%−2,935−46.6%Reduced
Castleview Partners, LLC3,335$246.6K0.14%+3,335New
Ameritas Investment Partners, Inc.3,284$242.8K0.01%00.0%Unchanged
Pearl River Capital, LLC3,190$235.9K0.04%+3,190New
Cambridge Investment Research Advisors, Inc.3,185$235.0K0.00%+3,185New
Private Advisor Group, LLC3,030$224.0K0.00%+3,030New
Corton Capital Inc.3,007$222.3K0.08%+346+13.0%Added
The PNC Financial Services Group, Inc.2,968$219.5K0.00%+2,272+326.4%Added
E. Ohman J:or Asset Management AB2,865$211.8K0.01%+2,865New
Qube Research & Technologies Ltd2,799$207.0K0.00%+2,799New
Entropy Technologies, LP2,715$200.7K0.02%+2,715New
Simplex Trading, LLC2,551$188.0K0.01%+2,284+855.4%Added
Group One Trading, L.P.2,492$184.3K0.01%+2,492New
US Bancorp2,242$165.8K0.00%−3,366−60.0%Reduced