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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, Q3 2024

Institutional positions in TransMedics Group, Inc. as of Sep 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
374
+36 vs. Q2 2024
Shares held
36.7M
+5.52M (+17.7%) vs. Q2 2024
Total value
$5.74B
+$1.05B (+22.4%) vs. Q2 2024
New holders
77
136 more added
Sold out
41
122 more reduced

2 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2024: 374 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 heldQ3 2024: $5.74B
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, Q3 2024

Shares, value and share of portfolio for each institution holding TransMedics Group, Inc.; share changes are against Q2 2024.

Institutions holding TMDX in Q3 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Bullseye Asset Management LLC36,201$5.68M2.62%−12,799−26.1%Reduced
EAM Global Investors LLC35,905$5.64M1.14%+174+0.5%Added
HSBC Holdings PLC33,528$5.26M0.00%+26,968+411.1%Added
Lazard Asset Management LLC33,413$5.25M0.01%+2,345+7.5%Added
California State Teachers Retirement System31,095$4.88M0.01%−789−2.5%Reduced
Liontrust Investment Partners LLP31,143$4.69M0.07%00.0%Unchanged
EAM Investors, LLC29,642$4.65M0.70%−4,804−13.9%Reduced
Russell Investments Group, Ltd.28,769$4.52M0.01%−3,970−12.1%Reduced
State of Wisconsin Investment Board28,576$4.49M0.01%+6,010+26.6%Added
Gilder Gagnon Howe & Co LLC27,602$4.33M0.05%+27,602New
Avidity Partners Management LP27,600$4.33M0.22%+27,600New
Raymond James & Associates27,436$4.31M0.00%+3,992+17.0%Added
Lisanti Capital Growth, LLC27,175$4.27M1.08%−25,775−48.7%Reduced
Canada Pension Plan Investment Board27,100$4.25M0.00%−79,700−74.6%Reduced
Pathstone Holdings, LLC26,381$4.14M0.02%+1,231+4.9%Added
Thrivent Financial for Lutherans26,196$4.11M0.01%+26,196New
Moody Aldrich Partners LLC25,733$4.04M0.73%−448−1.7%Reduced
Raymond James Financial Services Advisors, Inc.25,677$4.03M0.01%−3,596−12.3%Reduced
Comerica Bank24,075$3.78M0.01%+9,900+69.8%Added
Trillium Asset Management, LLC23,229$3.65M0.09%−75−0.3%Reduced
HighTower Advisors, LLC23,138$3.63M0.01%+17,437+305.9%Added
ExodusPoint Capital Management, LP21,405$3.36M0.03%−41,285−65.9%Reduced
LPL Financial LLC21,163$3.32M0.00%+5,547+35.5%Added
EFG Asset Management (North America) Corp.20,705$3.25M0.54%−491−2.3%Reduced
Royal Bank of Canada20,414$3.20M0.00%+1,156+6.0%Added
Summit Partners Public Asset Management, LLC20,347$3.19M0.14%+20,347New
Quantbot Technologies LP19,738$3.10M0.12%+16,926+601.9%Added
Options Solutions, LLC18,676$2.93M1.41%+5,219+38.8%Added
MetLife Investment Management18,524$2.91M0.02%00.0%Unchanged
Manufacturers Life Insurance Company, The18,473$2.90M0.00%+657+3.7%Added
Corebridge Financial, Inc.18,473$2.90M0.02%+1,205+7.0%Added
Abn Amro Investment Solutions18,470$2.90M0.05%−2,218−10.7%Reduced
Eagle Health Investments LP18,061$2.84M0.55%−114,800−86.4%Reduced
Mirae Asset Global ETFs Holdings Ltd.17,561$2.76M0.01%+1,291+7.9%Added
Oak Ridge Investments LLC17,327$2.72M0.24%−488−2.7%Reduced
Engineers Gate Manager LP16,987$2.67M0.05%+9,942+141.1%Added
State of Alaska, Department of Revenue16,308$2.56M0.03%+16,308New
PDT Partners, LLC16,300$2.56M0.23%+16,300New
Dimensional Fund Advisors LP16,201$2.54M0.00%+16,201New
Louisiana State Employees Retirement System16,100$2.53M0.05%+16,100New
Nisa Investment Advisors, LLC15,591$2.45M0.01%−40.0%Reduced
Atika Capital Management LLC15,500$2.43M0.26%−8,500−35.4%Reduced
Janus Henderson Group PLC15,463$2.43M0.00%+1,428+10.2%Added
M&T Bank Corp14,742$2.31M0.01%−210−1.4%Reduced
Dana Investment Advisors, Inc.14,398$2.26M0.07%−389−2.6%Reduced
Calamos Advisors LLC14,155$2.22M0.01%−3,692−20.7%Reduced
Intech Investment Management LLC13,801$2.17M0.02%+13,801New
GWM Advisors LLC13,229$2.08M0.01%+2,857+27.5%Added
Executive Wealth Management, LLC12,998$2.04M0.16%−3,096−19.2%Reduced
State of New Jersey Common Pension Fund D12,929$2.03M0.01%−141−1.1%Reduced
Mariner, LLC12,668$1.99M0.00%−874−6.5%Reduced
Public Employees Retirement System of Ohio12,221$1.92M0.01%−1,579−11.4%Reduced
Centiva Capital, LP12,144$1.91M0.09%−608−4.8%Reduced
Headlands Technologies LLC12,069$1.89M0.22%+12,069New
Campbell Newman Asset Management Inc11,699$1.84M0.14%−192−1.6%Reduced
Susquehanna International Group, LLP11,452$1.80M0.00%+11,452New
Scientech Research LLC11,371$1.79M0.36%−1,396−10.9%Reduced
Yousif Capital Management, LLC11,302$1.77M0.02%+11,302New
Maryland State Retirement & Pension System11,233$1.76M0.04%+11,233New
Los Angeles Capital Management LLC10,866$1.71M0.01%+1,559+16.8%Added
O'Neil Global Advisors, Inc.10,812$1.70M0.43%+163+1.5%Added
Caxton Associates LP10,550$1.66M0.08%−419−3.8%Reduced
Entropy Technologies, LP10,471$1.64M0.17%+2,700+34.7%Added
Seven Eight Capital, LP10,441$1.64M0.15%+10,441New
Voya Investment Management LLC10,399$1.63M0.00%−278−2.6%Reduced
Legato Capital Management LLC10,391$1.63M0.20%−3,570−25.6%Reduced
BNP Paribas Arbitrage, SA10,378$1.63M0.00%−141,542−93.2%Reduced
Creative Planning10,262$1.61M0.00%+1,089+11.9%Added
J.W. Cole Advisors, Inc.10,257$1.61M0.07%−4,048−28.3%Reduced
Zacks Investment Management10,236$1.61M0.01%+10,236New
Rockefeller Capital Management L.P.10,216$1.60M0.00%+10,216New
D.A. Davidson & Co.9,995$1.57M0.01%+53+0.5%Added
Pacific Capital Partners Ltd9,782$1.54M0.90%−1,774−15.4%Reduced
Amalgamated Bank9,774$1.53M0.01%+8,660+777.4%Added
Arizona State Retirement System9,484$1.49M0.01%+326+3.6%Added
Polar Capital Holdings Plc9,477$1.49M0.01%+9,477New
Private Advisor Group, LLC9,278$1.46M0.01%−739−7.4%Reduced
Verition Fund Management LLC9,227$1.45M0.01%−4,858−34.5%Reduced
AQR Capital Management LLC9,169$1.44M0.00%+6,154+204.1%Added
Harbor Capital Advisors, Inc.8,964$1.41M0.06%+2,916+48.2%Added
Congress Wealth Management LLC8,743$1.37M0.02%+70+0.8%Added
Clough Capital Partners L P8,705$1.37M0.14%+8,705New
Atria Wealth Solutions, Inc.8,669$1.36M0.01%+1,701+24.4%Added
Park Avenue Securities LLC8,475$1.33M0.01%−81−0.9%Reduced
SlateStone Wealth, LLC8,458$1.33M0.12%+2,777+48.9%Added
Commonwealth Equity Services, LLC8,445$1.33M0.00%+1,948+30.0%Added
SG Americas Securities, LLC8,359$1.31M0.00%−12,830−60.6%Reduced
Wolverine Trading, LLC8,020$1.28M0.03%+6,457+413.1%Added
Sapient Capital LLC7,904$1.24M0.02%+7,904New
Oregon Public Employees Retirement Fund7,900$1.24M0.02%+7,900New
Danske Bank A/S7,864$1.23M0.00%+7,864New
State Board of Administration of Florida Retirement System7,823$1.23M0.00%00.0%Unchanged
New York State Teachers Retirement System7,749$1.22M0.00%+7,749New
Cetera Investment Advisers7,626$1.20M0.00%−1,079−12.4%Reduced
Stifel Financial Corp7,424$1.17M0.00%−143−1.9%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)7,396$1.16M0.00%00.0%Unchanged
AXA S.A.7,364$1.16M0.00%−91,146−92.5%Reduced
Wakefield Asset Management LLLP6,859$1.08M0.35%−106−1.5%Reduced
Valmark Advisers, Inc.6,803$1.07M0.02%−52−0.8%Reduced
Campbell & CO Investment Adviser LLC6,802$1.07M0.08%+4,985+274.4%Added