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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 2023

Institutional positions in TransMedics Group, Inc. as of Dec 31, 2023. 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
249
+28 vs. Q3 2023
Shares held
35.0M
+141.4K (+0.4%) vs. Q3 2023
Total value
$2.76B
+$852.8M (+44.7%) vs. Q3 2023
New holders
50
78 more added
Sold out
22
91 more reduced

1 institution that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2023: 249 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 2023: $2.76B
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 2023

Shares, value and share of portfolio for each institution holding TransMedics Group, Inc.; share changes are against Q3 2023.

Institutions holding TMDX in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Covestor Ltd2$00.00%+1+100.0%Added
Principal Securities, Inc.2$1580.00%+2New
American Capital Advisory, LLC2$1580.00%+2New
Crewe Advisors LLC3$2370.00%+3New
Russell Investments Group, Ltd.8$6310.00%−2−20.0%Reduced
Bell Investment Advisors, Inc12$9480.00%−5−29.4%Reduced
Capital Advisors, Ltd. LLC11$1.00K0.00%−1−8.3%Reduced
Farther Finance Advisors, LLC16$1.26K0.00%+16New
Quadrant Capital Group LLC22$1.74K0.00%−1−4.3%Reduced
Allworth Financial LP25$1.97K0.00%+4+19.0%Added
Valley National Advisers Inc40$3.00K0.00%+30+300.0%Added
HighMark Wealth Management LLC40$3.16K0.00%00.0%Unchanged
Arrow Financial Corp60$4.74K0.00%+60New
Private Trust Co NA79$6.24K0.00%−15−16.0%Reduced
Global Retirement Partners, LLC79$6.26K0.00%−641−89.0%Reduced
Truvestments Capital LLC90$7.10K0.00%00.0%Unchanged
Macroview Investment Management LLC90$7.10K0.01%+90New
GAMMA Investing LLC86$7.38K0.00%+86New
CWM, LLC99$8.00K0.00%−118−54.4%Reduced
City State Bank100$8.00K0.00%00.0%Unchanged
West Tower Group, LLC114$9.00K0.02%−6−5.0%Reduced
Northwestern Mutual Wealth Management Co125$9.87K0.00%+125New
Trust Co of Vermont137$10.8K0.00%00.0%Unchanged
National Bank of Canada150$11.5K0.00%00.0%Unchanged
Clearstead Advisors, LLC150$11.8K0.00%00.0%Unchanged
Parallel Advisors, LLC160$12.6K0.00%00.0%Unchanged
Oliver Lagore Vanvalin Investment Group164$12.9K0.00%−79−32.5%Reduced
Umb Bank N A177$14.0K0.00%00.0%Unchanged
Householder Group Estate & Retirement Specialist, LLC200$15.0K0.00%00.0%Unchanged
EverSource Wealth Advisors, LLC238$18.8K0.00%+238New
Coppell Advisory Solutions LLC243$19.2K0.00%+243New
Simplex Trading, LLC267$21.0K0.00%−3,785−93.4%Reduced
Huntington National Bank297$23.4K0.00%00.0%Unchanged
Newbridge Financial Services Group, Inc.300$23.7K0.01%00.0%Unchanged
Signaturefd, LLC314$24.8K0.00%+36+12.9%Added
Lindbrook Capital, LLC336$26.5K0.00%−175−34.2%Reduced
NBC Securities, Inc.347$27.0K0.00%00.0%Unchanged
Oakworth Capital, Inc.412$32.5K0.00%00.0%Unchanged
Leonteq Securities AG430$33.9K0.00%+430New
Adirondack Trust Co460$37.5K0.02%00.0%Unchanged
Ancora Advisors, LLC500$39.5K0.00%00.0%Unchanged
Central Trust Co550$43.4K0.00%00.0%Unchanged
MCF Advisors LLC557$44.0K0.00%−29−4.9%Reduced
Point72 Hong Kong Ltd600$47.4K0.00%+600New
The PNC Financial Services Group, Inc.696$54.9K0.00%+88+14.5%Added
KBC Group NV767$61.0K0.00%00.0%Unchanged
First Horizon Advisors, Inc.1,049$82.8K0.00%+222+26.8%Added
Quantbot Technologies LP1,061$83.7K0.00%−34,393−97.0%Reduced
Arcadia Investment Management Corp1,111$87.6K0.02%−3,750−77.1%Reduced
GWM Advisors LLC1,145$90.4K0.00%+71+6.6%Added
Comerica Bank1,230$97.1K0.00%+604+96.5%Added
RiverPark Advisors, LLC1,319$104.1K0.10%+215+19.5%Added
Aquatic Capital Management LLC1,400$111.0K0.00%−27,200−95.1%Reduced
Van Eck Associates Corp1,588$125.0K0.00%−539−25.3%Reduced
Metropolitan Life Insurance Co1,829$144.4K0.01%00.0%Unchanged
Headlands Technologies LLC2,291$180.8K0.05%−991−30.2%Reduced
Oppenheimer Asset Management Inc.2,535$200.1K0.00%+2,535New
Yarbrough Capital, LLC2,541$200.6K0.01%+2,541New
Prudential Financial Inc2,554$201.6K0.00%+2,554New
SG Americas Securities, LLC2,580$204.0K0.00%+2,580New
Corton Capital Inc.2,661$210.0K0.07%+2,661New
Prelude Capital Management, LLC2,874$226.8K0.02%+2,874New
Y-Intercept (Hong Kong) Ltd3,022$238.5K0.02%+3,022New
nVerses Capital, LLC–$252.6K0.70%–New
Ameritas Investment Partners, Inc.3,284$259.2K0.01%+132+4.2%Added
Commonwealth Equity Services, LLC3,462$273.0K0.00%+3,462New
Wolverine Trading, LLC3,674$290.0K0.00%+3,674New
Pathstone Holdings, LLC3,887$306.8K0.00%+3,887New
Pictet Asset Management Holding SA4,146$327.2K0.00%00.0%Unchanged
Victory Capital Management Inc4,239$334.6K0.00%−6,294−59.8%Reduced
Public Employees Retirement Association of Colorado4,319$341.0K0.00%00.0%Unchanged
Creative Planning4,547$358.9K0.00%+4,547New
Amalgamated Bank4,573$361.0K0.00%−204−4.3%Reduced
Raymond James & Associates4,593$362.5K0.00%+851+22.7%Added
Clough Capital Partners L P4,599$363.0K0.04%+286+6.6%Added
Lakeview Capital Partners, LLC4,622$364.8K0.06%−907−16.4%Reduced
Financial Perspectives, Inc4,709$371.7K0.15%00.0%Unchanged
Algert Global LLC4,830$381.2K0.02%+4,830New
Mount Yale Investment Advisors, LLC4,916$388.0K0.04%−6,783−58.0%Reduced
Abundance Wealth Counselors4,945$390.0K0.10%+4,945New
FIL Ltd5,000$394.6K0.00%+5,000New
Atria Wealth Solutions, Inc.5,260$415.2K0.01%+5,260New
Pitcairn Co5,300$418.3K0.03%−35−0.7%Reduced
Glenmede Trust Co NA5,402$426.4K0.00%+5,402New
ProShare Advisors LLC5,444$429.7K0.00%+1,213+28.7%Added
US Bancorp5,608$442.6K0.00%+2,317+70.4%Added
Mach-1 Financial Group, Inc.5,652$446.1K0.17%+5,652New
Level Four Advisory Services, LLC5,969$471.1K0.03%+5,969New
Envestnet Portfolio Solutions, Inc.6,261$494.2K0.00%+2,551+68.8%Added
Jump Financial, LLC6,300$497.3K0.02%−70,459−91.8%Reduced
AQR Capital Management LLC6,303$497.5K0.00%+223+3.7%Added
Alpha DNA Investment Management LLC6,337$500.2K0.30%+6,337New
AE Wealth Management LLC5,892$509.4K0.00%+5,892New
J.W. Cole Advisors, Inc.6,526$515.1K0.03%−10,449−61.6%Reduced
Tower Research Capital LLC (TRC)6,583$519.6K0.01%+3,105+89.3%Added
Courier Capital LLC6,655$525.3K0.04%00.0%Unchanged
HighPoint Advisor Group LLC7,640$543.0K0.04%+7,640New
Marex Group plc7,006$553.0K0.02%+7,006New
Montanaro Asset Management Ltd7,150$564.4K0.11%00.0%Unchanged
Handelsbanken Fonder AB7,200$568.0K0.00%+2,200+44.0%Added