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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 2022

Institutional positions in TransMedics Group, Inc. as of Dec 31, 2022. 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
200
+26 vs. Q3 2022
Shares held
29.0M
+713.4K (+2.5%) vs. Q3 2022
Total value
$1.79B
+$607.5M (+51.5%) vs. Q3 2022
New holders
37
76 more added
Sold out
11
66 more reduced

4 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2022: 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 2022: 200 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 2022: $1.79B
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 2022

Shares, value and share of portfolio for each institution holding TransMedics Group, Inc.; share changes are against Q3 2022.

Institutions holding TMDX in Q4 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Price T Rowe Associates Inc14,512$896.0K0.00%+288+2.0%Added
Nisa Investment Advisors, LLC15,572$961.0K0.01%00.0%Unchanged
MetLife Investment Management16,190$999.2K0.01%00.0%Unchanged
Gotham Asset Management, LLC17,017$1.05M0.03%+17,017New
Advisory Research Inc17,090$1.05M0.10%+9,161+115.5%Added
AtonRa Partners17,345$1.07M1.36%−3,191−15.5%Reduced
Millrace Asset Group, Inc.17,940$1.11M1.26%−2,378−11.7%Reduced
ClariVest Asset Management LLC19,100$1.18M0.06%−200−1.0%Reduced
Financial Advocates Investment Management19,363$1.20M0.09%+6,481+50.3%Added
Wells Fargo & Company20,609$1.27M0.00%−20,843−50.3%Reduced
Squarepoint Ops LLC21,113$1.30M0.01%+2,650+14.4%Added
Trexquant Investment LP21,797$1.35M0.04%+21,797New
Jump Financial, LLC24,135$1.49M0.08%−5,065−17.3%Reduced
Occudo Quantitative Strategies LP25,870$1.60M0.19%−482−1.8%Reduced
Envestnet Asset Management Inc28,232$1.74M0.00%−7,927−21.9%Reduced
Voya Investment Management LLC30,757$1.90M0.00%+19,148+164.9%Added
Alliancebernstein L.P.31,700$1.96M0.00%+10,700+51.0%Added
JPMorgan Chase & Co31,922$1.97M0.00%+3,708+13.1%Added
Mariner, LLC32,111$1.98M0.01%−2,370−6.9%Reduced
Legato Capital Management LLC33,079$2.04M0.39%+33,079New
SEI Investments Co33,618$2.08M0.00%−77,635−69.8%Reduced
Advisor Group Holdings, Inc.35,184$2.17M0.00%+18,027+105.1%Added
New York State Common Retirement Fund35,673$2.20M0.00%+2,092+6.2%Added
Bridgewater Associates, LP35,817$2.21M0.01%−11,072−23.6%Reduced
Putnam Investments LLC36,871$2.28M0.00%+36,871New
Divisadero Street Capital Management, LP38,000$2.35M1.75%−82,000−68.3%Reduced
California State Teachers Retirement System38,091$2.35M0.00%+421+1.1%Added
Cubist Systematic Strategies, LLC38,394$2.37M0.02%−33,366−46.5%Reduced
First Trust Advisors LP38,738$2.39M0.00%+38,738New
State of New Jersey Common Pension Fund D38,926$2.40M0.01%+38,926New
UBS Asset Management Americas Inc39,222$2.42M0.00%+8,385+27.2%Added
Rhumbline Advisers40,035$2.47M0.00%+3,852+10.6%Added
Principal Financial Group Inc40,213$2.48M0.00%+30,885+331.1%Added
Soleus Capital Management, L.P.43,500$2.68M0.39%−131,800−75.2%Reduced
Ensign Peak Advisors, Inc43,800$2.70M0.01%+3,600+9.0%Added
BNP Paribas Arbitrage, SA45,939$2.84M0.01%+14,613+46.6%Added
Two Sigma Investments, LP48,448$2.99M0.01%−34,238−41.4%Reduced
Schonfeld Strategic Advisors LLC49,241$3.04M0.03%+20,541+71.6%Added
Quadrature Capital Ltd52,134$3.22M0.10%+32,883+170.8%Added
Parkman Healthcare Partners LLC55,351$3.42M0.91%+12,993+30.7%Added
Two Sigma Advisers, LP56,300$3.47M0.01%+45,300+411.8%Added
EAM Investors, LLC57,944$3.58M0.74%−19,367−25.1%Reduced
Calamos Advisors LLC60,232$3.72M0.02%−5,498−8.4%Reduced
Essex Investment Management Co LLC60,492$3.73M0.58%−12,348−17.0%Reduced
Natixis71,388$4.41M0.03%+34,392+93.0%Added
Swiss National Bank71,900$4.44M0.00%+1,300+1.8%Added
Tudor Investment Corp Et Al76,210$4.70M0.12%−6,796−8.2%Reduced
Deutsche Bank AG78,454$4.84M0.00%+15,280+24.2%Added
Oberweis Asset Management Inc82,400$5.09M1.08%+82,400New
Bullseye Asset Management LLC83,012$5.12M2.77%+1,343+1.6%Added
EAM Global Investors LLC85,031$5.25M1.36%+19,342+29.4%Added
Silvercrest Asset Management Group LLC88,742$5.48M0.04%−46,551−34.4%Reduced
Pura Vida Investments, LLC90,000$5.55M0.93%−30,000−25.0%Reduced
Nuveen Asset Management, LLC95,192$5.88M0.00%−18,687−16.4%Reduced
Balyasny Asset Management LLC98,301$6.07M0.02%+98,301New
Lisanti Capital Growth, LLC103,185$6.37M0.87%00.0%Unchanged
Russell Investments Group, Ltd.110,850$6.84M0.01%+1,579+1.4%Added
Voloridge Investment Management, LLC116,424$7.19M0.04%−30,313−20.7%Reduced
Goldman Sachs Group Inc122,176$7.54M0.00%−50,732−29.3%Reduced
Ameriprise Financial Inc126,951$7.84M0.00%+55,299+77.2%Added
Castleark Management LLC131,275$8.10M0.42%+13,030+11.0%Added
Peregrine Capital Management LLC134,888$8.32M0.26%−4,074−2.9%Reduced
Millennium Management LLC142,964$8.82M0.01%+65,469+84.5%Added
ArrowMark Colorado Holdings LLC147,441$9.10M0.11%−52,945−26.4%Reduced
Royce & Associates LP192,000$11.9M0.12%+40,000+26.3%Added
Bank of America Corp196,045$12.1M0.00%−17,820−8.3%Reduced
AXA S.A.207,604$12.8M0.05%−127,600−38.1%Reduced
Charles Schwab Investment Management Inc233,553$14.4M0.00%+7,540+3.3%Added
Citadel Advisors LLC247,152$15.3M0.02%+104,965+73.8%Added
Kent Lake Capital LLC250,000$15.4M9.22%00.0%Unchanged
Dimensional Fund Advisors LP252,855$15.6M0.01%−1,328−0.5%Reduced
Baillie Gifford & Co253,319$15.6M0.02%+218,048+618.2%Added
First Light Asset Management, LLC265,097$16.4M1.52%+111,328+72.4%Added
Nicholas Investment Partners, LP289,704$17.9M1.57%+12,079+4.4%Added
Fred Alger Management, LLC300,205$18.5M0.10%−135,643−31.1%Reduced
Braidwell LP303,185$18.7M0.63%+303,185New
Invesco Ltd.311,330$19.2M0.01%−28,927−8.5%Reduced
Northern Trust Corp311,635$19.2M0.00%+5,065+1.7%Added
Morgan Stanley332,887$20.5M0.00%−35,689−9.7%Reduced
Kornitzer Capital Management Inc373,496$23.1M0.47%−19,430−4.9%Reduced
D. E. Shaw & Co., Inc.374,666$23.1M0.04%+297,140+383.3%Added
American Century Companies Inc380,782$23.5M0.02%+380,782New
Emerald Mutual Fund Advisers Trust441,791$27.3M1.69%+57,344+14.9%Added
Bank of New York Mellon Corp467,541$28.9M0.01%−171,143−26.8%Reduced
Ophir Asset Management Pty Ltd502,226$31.0M5.96%+122,634+32.3%Added
Emerald Advisers, LLC562,667$34.7M1.68%+67,741+13.7%Added
Geode Capital Management, LLC570,282$35.2M0.00%+25,644+4.7%Added
Allspring Global Investments Holdings, LLC597,526$36.9M0.06%+267,922+81.3%Added
Next Century Growth Investors LLC626,630$38.7M4.64%−177,550−22.1%Reduced
Bellevue Group AG682,058$42.1M0.56%+28,244+4.3%Added
State Street Corp707,392$43.7M0.00%+13,250+1.9%Added
Summit Partners Public Asset Management, LLC957,282$59.1M4.31%+130,255+15.7%Added
Credit Suisse AG1,037,297$64.0M0.07%−128,028−11.0%Reduced
Driehaus Capital Management LLC1,101,377$68.0M1.01%+104,808+10.5%Added
Lord, Abbett & Co. LLC1,187,806$73.3M0.26%+415,733+53.8%Added
Sandhill Capital Partners LLC1,203,750$74.3M7.93%−139,413−10.4%Reduced
Vanguard Group Inc1,691,425$104.4M0.00%+46,734+2.8%Added
Macquarie Group Ltd1,947,472$120.2M0.14%+197,273+11.3%Added
BlackRock Inc.2,310,705$142.6M0.00%+112,051+5.1%Added
FMR LLC3,276,682$202.2M0.02%−663,474−16.8%Reduced