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TransMedics Group (TMDX) Institutional Ownership

TransMedics Group logo
$75.38 +0.79 (+1.06%)
Closing price 07/15/2026 04:00 PM Eastern
Extended Trading
$75.10 -0.27 (-0.36%)
As of 07/15/2026 07:45 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for TransMedics Group (NASDAQ:TMDX)

Current
Institutional Ownership
Percentage
99.67%
Number of
Institutional Buyers
(last 12 months)
288
Total
Institutional Inflows
(last 12 months)
$611.79M
Number of
Institutional Sellers
(last 12 months)
148
Total
Institutional Outflows
(last 12 months)
$1.50B
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TMDX Institutional Buying and Selling by Quarter

TransMedics Group Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
7/10/2026 Wasatch Advisors LP308,434$20.49M0.1%-10.9%0.892%
7/10/2026 Generali Investments Management Co LLC2,996$199K0.0%-35.1%0.009%
7/10/2026 Handelsbanken Fonder AB13,500$897K0.0%-2.9%0.039%
7/7/2026 180 Wealth Advisors LLC4,157$276K0.0%N/A0.012%
7/7/2026 GAMMA Investing LLC1,686$112K0.0%-11.5%0.005%
6/18/2026Pacer Advisors Inc.2,391$238K0.0%+79.8%0.007%
6/12/2026Militia Capital Management LLC21,000$2.09M0.5%N/A0.061%
5/19/2026Kensington Investment Counsel LLC8,291$824K0.4%-46.8%0.024%
5/19/2026Janus Henderson Group PLC73,488$7.31M0.0%+2.1%0.213%
5/18/2026Amundi6,897$686K0.0%+31.2%0.020%
5/18/2026California State Teachers Retirement System37,840$3.76M0.0%+22.8%0.109%
5/18/2026Royal Bank of Canada26,937$2.68M0.0%-57.1%0.078%
5/16/2026The Manufacturers Life Insurance Company 15,234$1.51M0.0%-2.9%0.044%
5/16/2026Quantinno Capital Management LP8,059$801K0.0%+197.9%0.023%
5/14/2026Beaconlight Capital LLC42,478$4.22M2.2%+44.8%0.123%
5/14/2026Public Employees Retirement System of Ohio14,666$1.46M0.0%+8.1%0.042%
5/14/2026Keebeck Wealth Management5,175$514K0.1%+12.4%0.015%
5/14/2026Sei Investments Co.69,629$6.92M0.0%+25.9%0.201%
5/13/2026Cetera Investment Advisers17,073$1.70M0.0%+58.5%0.049%
5/13/2026Militia Capital Management LLC16,600$1.65M0.4%N/A0.048%
5/13/2026Signature Equity Partners LLC1,195$119K0.1%N/A0.003%
5/13/2026 First Citizens Bank & Trust Co.3,355$334K0.0%-6.0%0.010%
5/13/2026First Trust Advisors LP53,889$5.36M0.0%+111.5%0.156%
5/7/2026Dimensional Fund Advisors LP516,679$51.36M0.0%+5.5%1.496%
5/7/2026Swiss National Bank64,200$6.38M0.0%+0.5%0.186%
5/7/2026Precision Wealth Strategies LLC4,357$433K0.1%N/A0.013%
5/6/2026Catalyst Capital Advisors LLC5,355$532K0.0%-18.6%0.016%
5/6/2026Bessemer Group Inc.45,821$4.56M0.0%+38.8%0.133%
5/6/2026Allspring Global Investments Holdings LLC6,465$649K0.0%+11.2%0.019%
5/5/2026Bastion Asset Management Inc.55,463$6.10M1.9%-3.7%0.161%
5/5/2026Regency Capital Management Inc. DE21,846$2.17M1.0%N/A0.063%
5/5/2026D.A. Davidson & CO.14,971$1.49M0.0%-2.4%0.043%
5/5/2026Bank of New York Mellon Corp211,368$21.01M0.0%-42.7%0.612%
5/5/2026Illinois Municipal Retirement Fund19,618$1.95M0.0%-4.5%0.057%
5/5/2026Geneos Wealth Management Inc.30,635$3.05M0.1%N/A0.089%
5/4/2026Emerald Mutual Fund Advisers Trust229,326$22.80M1.1%-0.3%0.664%
5/4/2026Emerald Advisers LLC342,791$34.08M1.1%-2.4%0.993%
5/4/2026Principal Financial Group Inc.231,433$23.01M0.0%+19.4%0.670%
5/4/2026Teachers Retirement System of The State of Kentucky16,779$1.67M0.0%+97.0%0.049%
5/2/2026Global Assets Advisory LLC1,870$186K0.0%N/A0.005%
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5/1/2026Fifth Third Bancorp20,802$2.07M0.0%+4,638.5%0.060%
5/1/2026Candriam S.C.A.158,766$15.78M0.1%+45.4%0.460%
4/30/2026First Horizon Corp429$43K0.0%-38.9%0.001%
4/30/2026Kestra Advisory Services LLC5,272$524K0.0%-7.0%0.015%
4/30/2026Taylor Frigon Capital Management LLC19,718$1.96M1.1%-0.5%0.057%
4/29/2026Integrated Advisors Network LLC47,590$4.73M0.2%N/A0.138%
4/29/2026 Shelton Wealth Management LLC13,148$1.31M0.6%-1.8%0.038%
4/28/2026Whittier Trust Co. of Nevada Inc.425$45K0.0%+95.0%0.001%
4/28/2026Ascentis Independent Advisors299$30K0.0%N/A0.001%
4/27/2026HB Wealth Management LLC14,843$1.48M0.0%+0.7%0.043%
4/27/2026Private Advisor Group LLC4,721$469K0.0%N/A0.014%
4/25/2026Strs Ohio1,700$169K0.0%-5.6%0.005%
4/24/2026Peregrine Capital Management LLC57,184$5.69M0.2%-4.9%0.166%
4/23/2026North Star Investment Management Corp.300$30K0.0%N/A0.001%
4/22/2026Pictet Asset Management Holding SA5,266$523K0.0%+8.4%0.015%
4/21/2026 Wasatch Advisors LP346,144$34.41M0.2%+4.3%1.002%
4/21/2026Louisiana State Employees Retirement System15,200$1.51M0.0%N/A0.044%
4/21/2026Fiduciary Alliance LLC2,016$200K0.0%N/A0.006%
4/17/2026Total Clarity Wealth Management Inc.2,322$231K0.1%+5.1%0.007%
4/17/2026Values First Advisors Inc.5,944$591K0.3%+3.1%0.017%
4/17/2026Campbell Newman Asset Management Inc.12,248$1.22M0.1%+1.7%0.035%
4/16/2026SG Americas Securities LLC6,910$687K0.0%-56.1%0.020%
4/16/2026 Strong Tower Advisory Services8,891$884K0.2%N/A0.026%
3/10/2026Montanaro Asset Management Ltd101,939$12.40M3.5%-21.9%0.297%
3/9/2026Corient Private Wealth LLC3,084$375K0.0%+32.5%0.009%
2/24/2026Pacer Advisors Inc.1,330$162K0.0%N/A0.004%
2/23/2026Virtu Financial LLC26,949$3.28M0.1%+467.7%0.079%
2/19/2026Corient Private Wealth LLC3,084$375K0.0%+32.5%0.009%
2/18/2026Summit Global Investments3,260$397K0.0%+3.6%0.010%
2/18/2026State of Tennessee Department of Treasury13,533$1.81M0.0%-9.2%0.040%
2/18/2026EP Wealth Advisors LLC1,728$210K0.0%N/A0.005%
2/18/2026Regal Partners Ltd8,600$1.05M0.1%N/A0.025%
2/18/2026Empowered Funds LLC1,049$128K0.0%N/A0.003%
2/18/2026XTX Topco Ltd13,693$1.67M0.0%+78.8%0.040%
2/18/2026Kensington Investment Counsel LLC15,584$1.90M0.8%-9.2%0.046%
2/18/2026Wellington Management Group LLP433,321$52.71M0.0%+100.5%1.268%
2/18/2026Polymer Capital Management US LLC11,197$1.36M0.1%N/A0.033%
2/18/2026Occudo Quantitative Strategies LP2,577$313K0.0%-70.7%0.008%
2/18/2026Man Group plc95,664$11.64M0.0%-15.8%0.280%
2/18/2026Janus Henderson Group PLC71,951$8.75M0.0%+270.5%0.211%
2/18/2026Gotham Asset Management LLC40,872$4.97M0.0%+396.2%0.120%
2/18/2026Engineers Gate Manager LP13,773$1.68M0.0%-43.0%0.040%
2/18/2026Clough Capital Partners L P7,119$866K0.1%N/A0.021%
2/18/2026Beaconlight Capital LLC29,344$3.57M2.1%-33.6%0.086%
2/17/2026Guggenheim Capital LLC12,542$1.53M0.0%+423.5%0.037%
2/17/2026Schonfeld Strategic Advisors LLC91,065$11.08M0.0%+245.8%0.267%
2/17/2026Brown Capital Management LLC145,918$17.75M1.5%-53.5%0.427%
2/17/2026AQR Capital Management LLC4,808$585K0.0%-44.1%0.014%
2/17/2026Braidwell LP315,341$38.36M1.2%-10.2%0.923%
2/17/2026Cetera Investment Advisers10,771$1.31M0.0%+26.3%0.032%
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2/17/2026ArrowMark Colorado Holdings LLC186,979$22.75M0.5%-40.3%0.547%
2/17/2026Stansberry Asset Management LLC2,016$245K0.0%N/A0.006%
2/17/2026Trexquant Investment LP92,481$11.25M0.1%+15.0%0.271%
2/17/2026Amundi5,257$640K0.0%-12.7%0.015%
2/17/2026Jump Financial LLC3,400$414K0.0%-97.3%0.010%
2/17/2026Price T Rowe Associates Inc. MD569,970$69.34M0.0%+43.2%1.668%
2/17/2026Weiss Asset Management LP15,264$1.86M0.0%N/A0.045%
2/17/2026Advisory Services Network LLC1,765$215K0.0%-27.7%0.005%
2/17/2026Public Employees Retirement System of Ohio13,572$1.65M0.0%+23.1%0.040%
2/17/2026Russell Investments Group Ltd.6,871$836K0.0%+51.0%0.020%


TMDX Institutional Ownership - Frequently Asked Questions

During the previous two years, 449 institutional investors and hedge funds held shares of TransMedics Group. The most heavily invested institutionals were Vanguard Group Inc. ($438.58M), UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC ($121.27M), Goldman Sachs Group Inc. ($117.51M), Geode Capital Management LLC ($99.34M), Hood River Capital Management LLC ($91.11M), Two Sigma Investments LP ($71.29M), and Liontrust Investment Partners LLP ($70.19M).Learn more on TransMedics Group's institutional investors.

99.67% of TransMedics Group's stock is owned by institutional investors. Learn more on TMDX's institutional investor holdings.

Of the 405 institutional investors that purchased TransMedics Group's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC ($2.45M), Braidwell LP ($1.02M), Principal Financial Group Inc. ($437.55K), Norges Bank ($437.51K), Goldman Sachs Group Inc. ($409.07K), Dimensional Fund Advisors LP ($395.26K), and Marshall Wace LLP ($394.34K).

Institutional investors have bought a total of 5,153,836 shares in the last 24 months. This purchase volume represents approximately $611.79M in transactions.

Of the 148 institutional investors that sold TransMedics Group's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: New York State Common Retirement Fund ($2.16M), Man Group plc ($2.09M), JPMorgan Chase & Co. ($1.53M), Wellington Management Group LLP ($1.50M), Braidwell LP ($635.74K), Universal Beteiligungs und Servicegesellschaft mbH ($396.23K), and Marshall Wace LLP ($356.32K).

Institutional investors have sold a total of 11,836,254 shares in the last 24 months. This volume of shares sold represents approximately $1.50B in transactions.


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This page (NASDAQ:TMDX) was last updated on 7/16/2026 by MarketBeat.com Staff.
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