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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
Covestor Ltd2$00.00%00.0%Unchanged
TFC Financial Management1$740.00%+1New
Quest Partners LLC1$740.00%+1New
Principal Securities, Inc.2$1480.00%00.0%Unchanged
American Capital Advisory, LLC2$1520.00%00.0%Unchanged
Rothschild Investment LLC5$3700.00%+5New
Institutional & Family Asset Management, LLC6$4440.00%+6New
Continuum Advisory, LLC4$5150.00%+4New
Capital Advisors, Ltd. LLC11$1.00K0.00%00.0%Unchanged
Bell Investment Advisors, Inc18$1.33K0.00%+6+50.0%Added
West Paces Advisors Inc.20$1.48K0.00%+20New
Quadrant Capital Group LLC22$1.63K0.00%00.0%Unchanged
Allworth Financial LP25$1.85K0.00%00.0%Unchanged
Valley National Advisers Inc40$2.00K0.00%00.0%Unchanged
HighMark Wealth Management LLC40$2.96K0.00%00.0%Unchanged
Steward Partners Investment Advisory, LLC57$4.21K0.00%+57New
J.Safra Asset Management Corp59$4.36K0.00%+59New
Truvestments Capital LLC90$6.66K0.00%00.0%Unchanged
Opal Wealth Advisors, LLC93$6.88K0.00%+93New
City State Bank100$7.00K0.00%00.0%Unchanged
Global Retirement Partners, LLC96$7.10K0.00%+17+21.5%Added
North Star Investment Management Corp.100$7.39K0.00%+100New
Macroview Investment Management LLC105$7.76K0.01%+15+16.7%Added
GAMMA Investing LLC117$8.65K0.00%+31+36.0%Added
Elequin Capital LP119$8.80K0.00%+119New
Trust Co of Vermont137$10.1K0.00%00.0%Unchanged
Farther Finance Advisors, LLC141$10.4K0.00%+125+781.3%Added
IFP Advisors, Inc142$10.5K0.00%+142New
Parallel Advisors, LLC160$11.8K0.00%00.0%Unchanged
Umb Bank N A177$13.1K0.00%00.0%Unchanged
Householder Group Estate & Retirement Specialist, LLC200$14.8K0.00%00.0%Unchanged
EverSource Wealth Advisors, LLC178$16.8K0.00%−60−25.2%Reduced
CWM, LLC242$18.0K0.00%+143+144.4%Added
Nelson, Van Denburg & Campbell Wealth Management Group, LLC249$18.4K0.00%+249New
National Bank of Canada150$19.5K0.00%00.0%Unchanged
Clearstead Advisors, LLC150$19.8K0.00%00.0%Unchanged
CIBC Private Wealth Group, LLC300$22.0K0.00%+300New
Newbridge Financial Services Group, Inc.300$22.2K0.01%00.0%Unchanged
Signaturefd, LLC350$25.9K0.00%+36+11.5%Added
Huntington National Bank374$27.7K0.00%+77+25.9%Added
Lindbrook Capital, LLC392$29.0K0.00%+56+16.7%Added
Venturi Wealth Management, LLC400$29.6K0.00%+400New
Oakworth Capital, Inc.412$30.5K0.00%00.0%Unchanged
Headlands Technologies LLC445$32.9K0.01%−1,846−80.6%Reduced
NBC Securities, Inc.453$33.0K0.00%+106+30.5%Added
Tower Research Capital LLC (TRC)447$33.1K0.00%−6,136−93.2%Reduced
Adirondack Trust Co460$34.0K0.01%00.0%Unchanged
Ancora Advisors, LLC500$37.0K0.00%00.0%Unchanged
Central Trust Co550$40.7K0.00%00.0%Unchanged
MCF Advisors LLC557$41.2K0.00%00.0%Unchanged
First Horizon Advisors, Inc.604$44.7K0.00%−445−42.4%Reduced
Fred Alger Management, LLC637$47.1K0.00%−1,342,278−100.0%Reduced
KBC Group NV767$57.0K0.00%00.0%Unchanged
Amalgamated Bank1,044$77.0K0.00%−3,529−77.2%Reduced
Arcadia Investment Management Corp1,107$81.9K0.01%−4−0.4%Reduced
Leonteq Securities AG1,118$82.7K0.01%+688+160.0%Added
Walleye Trading LLC1,152$85.2K0.00%+1,152New
Harbor Capital Advisors, Inc.1,470$109.0K0.01%+1,470New
Metropolitan Life Insurance Co1,650$122.0K0.01%−179−9.8%Reduced
Van Eck Associates Corp1,763$130.0K0.00%+175+11.0%Added
Quantbot Technologies LP1,929$142.6K0.01%+868+81.8%Added
SG Americas Securities, LLC2,147$159.0K0.00%−433−16.8%Reduced
US Bancorp2,242$165.8K0.00%−3,366−60.0%Reduced
Group One Trading, L.P.2,492$184.3K0.01%+2,492New
Simplex Trading, LLC2,551$188.0K0.01%+2,284+855.4%Added
Entropy Technologies, LP2,715$200.7K0.02%+2,715New
Qube Research & Technologies Ltd2,799$207.0K0.00%+2,799New
E. Ohman J:or Asset Management AB2,865$211.8K0.01%+2,865New
The PNC Financial Services Group, Inc.2,968$219.5K0.00%+2,272+326.4%Added
Corton Capital Inc.3,007$222.3K0.08%+346+13.0%Added
Private Advisor Group, LLC3,030$224.0K0.00%+3,030New
Cambridge Investment Research Advisors, Inc.3,185$235.0K0.00%+3,185New
Pearl River Capital, LLC3,190$235.9K0.04%+3,190New
Ameritas Investment Partners, Inc.3,284$242.8K0.01%00.0%Unchanged
Castleview Partners, LLC3,335$246.6K0.14%+3,335New
AQR Capital Management LLC3,368$249.0K0.00%−2,935−46.6%Reduced
Cubist Systematic Strategies, LLC3,417$252.7K0.00%−22,781−87.0%Reduced
Occudo Quantitative Strategies LP3,510$259.5K0.05%+3,510New
Venture Visionary Partners LLC3,700$273.6K0.01%+3,700New
Sherbrooke Park Advisers LLC3,862$285.6K0.06%+3,862New
Bank of Hawaii3,886$287.3K0.01%−25,986−87.0%Reduced
Commonwealth Equity Services, LLC4,006$296.0K0.00%+544+15.7%Added
Glenmede Trust Co NA4,115$304.3K0.00%−1,287−23.8%Reduced
Victory Capital Management Inc4,142$306.3K0.00%−97−2.3%Reduced
Pictet Asset Management Holding SA4,146$306.6K0.00%00.0%Unchanged
Public Employees Retirement Association of Colorado4,319$319.0K0.00%00.0%Unchanged
DnB Asset Management AS4,516$333.9K0.00%+4,516New
Lakeview Capital Partners, LLC4,582$338.8K0.06%−40−0.9%Reduced
Bank Julius Baer & Co. Ltd, Zurich4,779$353.4K0.00%+4,779New
Black Swift Group, LLC5,000$369.7K0.09%+5,000New
Abundance Wealth Counselors5,030$372.0K0.09%+85+1.7%Added
Wealth Enhancement Advisory Services, LLC5,056$373.8K0.00%+5,056New
Cresset Asset Management, LLC5,136$379.8K0.00%+5,136New
Creative Planning5,146$380.5K0.00%+599+13.2%Added
Pitcairn Co5,378$397.6K0.03%+78+1.5%Added
Advisory Services Network, LLC5,650$417.8K0.01%−1,804−24.2%Reduced
Citigroup Inc5,734$424.0K0.00%−5,638−49.6%Reduced
Truist Financial Corp5,820$430.3K0.00%−6,642−53.3%Reduced
ProShare Advisors LLC5,871$434.1K0.00%+427+7.8%Added
Marex Group plc6,000$443.6K0.01%−1,006−14.4%Reduced