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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 2024

Institutional positions in TransMedics Group, Inc. as of Jun 30, 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
340
+80 vs. Q1 2024
Shares held
33.8M
+613.2K (+1.8%) vs. Q1 2024
Total value
$5.09B
+$2.63B (+107.4%) vs. Q1 2024
New holders
107
97 more added
Sold out
27
116 more reduced

2 institutions that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2024: 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 2024: 340 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 2024: $5.09B
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 2024

Shares, value and share of portfolio for each institution holding TransMedics Group, Inc.; share changes are against Q1 2024.

Institutions holding TMDX in Q2 2024
InstitutionSharesValue% of portfolioChange in sharesAction
FMR LLC4,490,204$676.3M0.04%−348,676−7.2%Reduced
BlackRock Inc.2,645,558$398.5M0.01%+121,932+4.8%Added
Vanguard Group Inc2,526,400$380.5M0.01%+637,306+33.7%Added
Driehaus Capital Management LLC1,486,073$223.8M2.17%+202,867+15.8%Added
Invesco Ltd.1,363,081$205.3M0.04%+80,348+6.3%Added
Eventide Asset Management, LLC1,145,430$172.5M2.95%−24,465−2.1%Reduced
ArrowMark Colorado Holdings LLC1,138,792$171.5M2.05%+58,866+5.5%Added
Macquarie Group Ltd956,299$144.0M0.17%−341,420−26.3%Reduced
State Street Corp782,786$117.9M0.01%+7,907+1.0%Added
Geode Capital Management, LLC753,684$113.5M0.01%+30,246+4.2%Added
Mackenzie Financial Corp606,750$91.4M0.14%−59,536−8.9%Reduced
Allspring Global Investments Holdings, LLC569,024$85.7M0.14%−160,986−22.1%Reduced
Lord, Abbett & Co. LLC533,876$80.4M0.26%+228,457+74.8%Added
Morgan Stanley511,636$77.1M0.01%+66,729+15.0%Added
Voloridge Investment Management, LLC439,977$66.3M0.25%+49,628+12.7%Added
Sandhill Capital Partners LLC434,974$65.5M5.03%−298,697−40.7%Reduced
Bank of New York Mellon Corp420,727$63.4M0.01%−111,168−20.9%Reduced
Fuller & Thaler Asset Management, Inc.396,330$59.7M0.26%+93,323+30.8%Added
FIL Ltd376,837$56.8M0.06%+215,951+134.2%Added
UBS Asset Management Americas Inc358,419$54.0M0.02%+315,589+736.8%Added
Next Century Growth Investors LLC336,397$50.7M4.21%−135,818−28.8%Reduced
Price T Rowe Associates Inc330,434$49.8M0.01%+33,110+11.1%Added
Emerald Advisers, LLC323,350$48.7M2.04%−200,070−38.2%Reduced
Wellington Management Group LLP314,345$47.3M0.01%+314,345New
Royce & Associates LP301,198$45.4M0.42%−14,000−4.4%Reduced
First Light Asset Management, LLC300,600$45.3M3.97%−411,082−57.8%Reduced
Wasatch Advisors Inc294,727$44.4M0.24%−140,244−32.2%Reduced
Goldman Sachs Group Inc293,411$44.2M0.01%+8,338+2.9%Added
Northern Trust Corp279,898$42.2M0.01%−8,588−3.0%Reduced
Bank of America Corp273,469$41.2M0.00%+61,207+28.8%Added
Norges Bank269,874$40.6M0.01%+269,874New
Charles Schwab Investment Management Inc265,060$39.9M0.01%+7,736+3.0%Added
Vaughan Nelson Investment Management, L.P.264,650$39.9M0.37%+264,650New
Baillie Gifford & Co257,466$38.8M0.03%−45,696−15.1%Reduced
Emerald Mutual Fund Advisers Trust249,057$37.5M1.97%−165,457−39.9%Reduced
JPMorgan Chase & Co214,793$32.4M0.00%+105,052+95.7%Added
D. E. Shaw & Co., Inc.210,271$31.7M0.04%+210,271New
Bellevue Group AG201,415$30.3M0.49%−162,649−44.7%Reduced
Braidwell LP189,960$28.6M0.90%−424,571−69.1%Reduced
Oberweis Asset Management Inc187,090$28.2M1.73%−11,110−5.6%Reduced
Nuveen Asset Management, LLC164,327$24.8M0.01%+79,967+94.8%Added
Blair William & Co162,728$24.5M0.08%−20,796−11.3%Reduced
Deutsche Bank AG162,207$24.4M0.01%+26,159+19.2%Added
Eagle Asset Management Inc154,308$23.2M0.12%+20,520+15.3%Added
BNP Paribas Arbitrage, SA151,920$22.9M0.02%+134,530+773.6%Added
Ensign Peak Advisors, Inc149,104$22.5M0.04%−22,405−13.1%Reduced
Jane Street Group, LLC144,248$21.7M0.02%+80,883+127.6%Added
First Turn Management, LLC139,780$21.1M3.42%−157,597−53.0%Reduced
Palisades Investment Partners, LLC139,737$21.0M10.42%+139,737New
Eagle Health Investments LP132,861$20.0M3.58%−145,794−52.3%Reduced
Renaissance Technologies LLC131,899$19.9M0.03%+68,100+106.7%Added
Wells Fargo & Company125,481$18.9M0.00%−51,857−29.2%Reduced
Hood River Capital Management LLC125,174$18.9M0.39%+125,174New
Franklin Resources Inc120,771$18.2M0.01%+109,720+992.9%Added
Segall Bryant & Hamill, LLC117,216$17.7M0.31%+3,188+2.8%Added
SEI Investments Co115,717$17.4M0.02%+5,290+4.8%Added
New York State Common Retirement Fund110,635$16.7M0.02%+24,909+29.1%Added
Canada Pension Plan Investment Board106,800$16.1M0.02%+106,800New
Barclays PLC105,942$16.0M0.01%−91,649−46.4%Reduced
Montanaro Asset Management Ltd104,250$15.7M2.93%+7,950+8.3%Added
Qube Research & Technologies Ltd98,773$14.9M0.03%+95,974+3,428.9%Added
AXA S.A.98,510$14.8M0.04%−6,383−6.1%Reduced
Axiom Investors LLC90,635$13.7M0.12%+18,790+26.2%Added
Nicholas Investment Partners, LP85,391$12.9M1.33%+26,470+44.9%Added
Citadel Advisors LLC78,134$11.8M0.01%−93,700−54.5%Reduced
Kornitzer Capital Management Inc75,006$11.3M0.21%−16,285−17.8%Reduced
Envestnet Asset Management Inc74,724$11.3M0.00%−11,131−13.0%Reduced
Millennium Management LLC74,614$11.2M0.01%+22,238+42.5%Added
F/M Investments LLC72,745$11.0M0.40%+72,745New
Granahan Investment Management Inc71,609$10.8M0.43%−61,778−46.3%Reduced
Bank of Montreal69,164$10.4M0.01%+30.0%Added
Lagoda Investment Management, L.P.65,035$9.80M5.64%−90−0.1%Reduced
Swiss National Bank64,300$9.68M0.01%00.0%Unchanged
Prudential Financial Inc63,509$9.57M0.01%+63,509New
ExodusPoint Capital Management, LP62,690$9.44M0.10%+62,690New
Advisor Group Holdings, Inc.62,234$9.37M0.02%−22,740−26.8%Reduced
Natixis Advisors, L.P.60,140$9.06M0.02%+60,140New
Pier Capital, LLC59,328$8.94M1.33%−4,931−7.7%Reduced
Ameriprise Financial Inc57,736$8.70M0.00%−47,846−45.3%Reduced
Osterweis Capital Management Inc56,740$8.55M0.44%−20,250−26.3%Reduced
Principal Financial Group Inc56,172$8.46M0.01%+48,192+603.9%Added
Biondo Investment Advisors, LLC53,405$8.04M1.19%+53,405New
Lisanti Capital Growth, LLC52,950$7.98M1.92%−5,545−9.5%Reduced
Bullseye Asset Management LLC49,000$7.38M3.61%−21,512−30.5%Reduced
Black Swift Group, LLC47,700$7.18M1.66%+42,700+854.0%Added
Rhumbline Advisers47,645$7.18M0.01%+1,783+3.9%Added
Peregrine Capital Management LLC46,001$6.93M0.20%−29,266−38.9%Reduced
Castleark Management LLC42,900$6.46M0.26%+42,900New
Oppenheimer & Co Inc42,145$6.35M0.10%+15,575+58.6%Added
Trexquant Investment LP42,093$6.34M0.10%+42,093New
Apis Capital Advisors, LLC40,000$6.02M4.45%−12,400−23.7%Reduced
Alliancebernstein L.P.38,630$5.82M0.00%+6,970+22.0%Added
First Trust Advisors LP37,446$5.64M0.01%−4,257−10.2%Reduced
EAM Global Investors LLC35,731$5.38M1.21%+35,731New
Legal & General Group Plc35,312$5.32M0.00%+2,276+6.9%Added
EAM Investors, LLC34,446$5.19M0.84%+34,446New
Twinbeech Capital LP33,624$5.06M0.10%+26,321+360.4%Added
Divisadero Street Capital Management, LP33,229$5.00M0.82%−42,707−56.2%Reduced
Russell Investments Group, Ltd.32,739$4.93M0.01%+5,734+21.2%Added
UBS Group AG32,411$4.88M0.00%−12,788−28.3%Reduced