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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, Q2 2023

Institutional positions in TransMedics Group, Inc. as of Jun 30, 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
240
+17 vs. Q1 2023
Shares held
32.5M
+2.64M (+8.8%) vs. Q1 2023
Total value
$2.73B
+$468.4M (+20.7%) vs. Q1 2023
New holders
45
107 more added
Sold out
28
62 more reduced

2 institutions that held it in Q1 2023 haven't filed for Q2 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2023: 240 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 heldQ2 2023: $2.73B
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, Q2 2023

Shares, value and share of portfolio for each institution holding TransMedics Group, Inc.; share changes are against Q1 2023.

Institutions holding TMDX in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Deutsche Bank AG135,665$11.4M0.01%+85,648+171.2%Added
Royce & Associates LP137,500$11.5M0.11%−22,000−13.8%Reduced
AXA S.A.142,788$12.0M0.04%−16,614−10.4%Reduced
Barclays PLC151,517$12.7M0.01%+135,977+875.0%Added
Ameriprise Financial Inc158,103$13.3M0.00%+18,412+13.2%Added
Bank of America Corp160,993$13.5M0.00%−28,156−14.9%Reduced
Iron Triangle Partners LP180,000$15.1M2.07%+180,000New
Wells Fargo & Company183,545$15.4M0.00%+160,987+713.7%Added
Eagle Health Investments LP232,032$19.5M3.64%+232,032New
Charles Schwab Investment Management Inc240,998$20.2M0.01%+7,334+3.1%Added
Baillie Gifford & Co241,553$20.3M0.02%−11,419−4.5%Reduced
Dimensional Fund Advisors LP245,750$20.6M0.01%−1,848−0.7%Reduced
Goldman Sachs Group Inc317,834$26.7M0.01%+219,615+223.6%Added
D. E. Shaw & Co., Inc.321,975$27.0M0.04%−119,999−27.2%Reduced
Divisadero Street Capital Management, LP325,000$27.3M8.14%+265,000+441.7%Added
SEI Investments Co327,813$27.5M0.05%+55,677+20.5%Added
Northern Trust Corp333,886$28.0M0.01%+16,692+5.3%Added
Emerald Mutual Fund Advisers Trust354,462$29.8M1.61%+1,089+0.3%Added
Nicholas Investment Partners, LP367,631$30.9M2.11%+223+0.1%Added
First Light Asset Management, LLC377,464$31.7M2.48%+39,552+11.7%Added
Bank of New York Mellon Corp397,087$33.3M0.01%−20,693−5.0%Reduced
Ophir Asset Management Pty Ltd418,366$35.1M7.32%+172,949+70.5%Added
Emerald Advisers, LLC436,093$36.6M1.60%+5,541+1.3%Added
Next Century Growth Investors LLC442,942$37.2M3.58%−35,145−7.4%Reduced
Morgan Stanley591,344$49.7M0.00%+60,459+11.4%Added
Bellevue Group AG612,613$51.4M0.73%−16,871−2.7%Reduced
Geode Capital Management, LLC642,651$54.0M0.01%+41,936+7.0%Added
Summit Partners Public Asset Management, LLC671,716$56.4M2.87%−234,452−25.9%Reduced
State Street Corp781,144$65.6M0.00%+40,822+5.5%Added
Credit Suisse AG787,268$66.1M0.07%−34,741−4.2%Reduced
Sandhill Capital Partners LLC812,844$68.3M6.22%−174,773−17.7%Reduced
Driehaus Capital Management LLC1,162,214$97.6M1.23%+90,023+8.4%Added
Invesco Ltd.1,279,365$107.4M0.03%+658,511+106.1%Added
Allspring Global Investments Holdings, LLC1,294,430$108.7M0.17%+346,727+36.6%Added
Fred Alger Management, LLC1,649,508$138.5M0.71%+505,869+44.2%Added
Macquarie Group Ltd1,694,166$142.3M0.16%−51,191−2.9%Reduced
Vanguard Group Inc1,784,644$149.9M0.00%+66,388+3.9%Added
Lord, Abbett & Co. LLC1,869,739$157.0M0.54%+15,656+0.8%Added
BlackRock Inc.2,309,393$193.9M0.01%+54,776+2.4%Added
FMR LLC3,307,699$277.8M0.02%+51,428+1.6%Added
Norges Bank0$00.00%−129,500−100.0%Sold out
Braidwell LP0$00.00%−98,459−100.0%Sold out
Silvercrest Asset Management Group LLC0$00.00%−72,405−100.0%Sold out
Two Sigma Advisers, LP0$00.00%−58,400−100.0%Sold out
Twinbeech Capital LP0$00.00%−56,233−100.0%Sold out
Pura Vida Investments, LLC0$00.00%−55,000−100.0%Sold out
Tudor Investment Corp Et Al0$00.00%−40,582−100.0%Sold out
BCJ Capital Management, LLC0$00.00%−38,631−100.0%Sold out
Intrinsic Edge Capital Management LLC0$00.00%−20,000−100.0%Sold out
ClariVest Asset Management LLC0$00.00%−18,988−100.0%Sold out
Syntal Capital Partners, LLC0$00.00%−17,380−100.0%Sold out
Engineers Gate Manager LP0$00.00%−10,682−100.0%Sold out
Simplex Trading, LLC0$00.00%−7,094−100.0%Sold out
Dynamic Technology Lab Private Ltd0$00.00%−6,940−100.0%Sold out
Spouting Rock Asset Management, LLC0$00.00%−5,513−100.0%Sold out
SG Americas Securities, LLC0$00.00%−5,177−100.0%Sold out
J.W. Cole Advisors, Inc.0$00.00%−5,130−100.0%Sold out
BlueCrest Capital Management Ltd0$00.00%−3,000−100.0%Sold out
Boothbay Fund Management, LLC0$00.00%−2,795−100.0%Sold out
Leonteq Securities AG0$00.00%−1,229−100.0%Sold out
Tucker Asset Management LLC0$00.00%−823−100.0%Sold out
Dark Forest Capital Management LP0$00.00%−668−100.0%Sold out
Belpointe Asset Management LLC0$00.00%−558−100.0%Sold out
WR Wealth Planners, LLC0$00.00%−100−100.0%Sold out
TCI Wealth Advisors, Inc.0$00.00%−88−100.0%Sold out
Ellevest, Inc.0$00.00%−30−100.0%Sold out
Point72 Middle East FZE0$00.00%−21−100.0%Sold out
Northwestern Mutual Wealth Management Co0$00.00%−5−100.0%Sold out
Kula Investments, LLC––––Not filed
Householder Group Estate & Retirement Specialist, LLC––––Not filed