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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, Q1 2023

Institutional positions in TransMedics Group, Inc. as of Mar 31, 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
225
+25 vs. Q4 2022
Shares held
29.9M
+914.4K (+3.2%) vs. Q4 2022
Total value
$2.26B
+$476.2M (+26.6%) vs. Q4 2022
New holders
40
81 more added
Sold out
15
79 more reduced

Compare with Q4 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 holdersQ1 2023: 225 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 heldQ1 2023: $2.26B
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, Q1 2023

Shares, value and share of portfolio for each institution holding TransMedics Group, Inc.; share changes are against Q4 2022.

Institutions holding TMDX in Q1 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Royal Bank of Canada17,651$1.34M0.00%+13,071+285.4%Added
Syntal Capital Partners, LLC17,380$1.32M0.48%+17,380New
Prudential Financial Inc17,168$1.30M0.00%+17,168New
Algert Global LLC17,055$1.29M0.06%+9,074+113.7%Added
MetLife Investment Management16,190$1.23M0.01%00.0%Unchanged
LPL Financial LLC15,689$1.19M0.00%+7,374+88.7%Added
Nisa Investment Advisors, LLC15,542$1.18M0.01%−30−0.2%Reduced
Barclays PLC15,540$1.18M0.00%+7,346+89.7%Added
AtonRa Partners15,176$1.15M1.68%−2,169−12.5%Reduced
Trexquant Investment LP15,106$1.14M0.03%−6,691−30.7%Reduced
Price T Rowe Associates Inc15,041$1.14M0.00%+529+3.6%Added
Legal & General Group Plc14,741$1.12M0.00%+1,705+13.1%Added
American International Group, Inc.14,726$1.12M0.01%+294+2.0%Added
Kula Investments, LLC14,499$1.10M0.27%+14,499New
UBS Group AG14,336$1.09M0.00%+4,472+45.3%Added
Janus Henderson Group PLC14,234$1.08M0.00%+9,217+183.7%Added
Millrace Asset Group, Inc.13,309$1.01M1.18%−4,631−25.8%Reduced
Mirae Asset Global Investments Co., Ltd.13,240$1.00M0.00%00.0%Unchanged
Susquehanna International Group, LLP12,657$958.5K0.00%+12,657New
Two Sigma Investments, LP12,538$949.5K0.00%−35,910−74.1%Reduced
Quantbot Technologies LP12,243$927.2K0.07%+5,965+95.0%Added
Manufacturers Life Insurance Company, The12,164$921.2K0.00%+433+3.7%Added
Bank of Hawaii11,689$885.2K0.05%+2,181+22.9%Added
GWM Advisors LLC11,648$882.1K0.01%−3,708−24.1%Reduced
Voya Investment Management LLC11,609$879.1K0.00%−19,148−62.3%Reduced
Oppenheimer & Co Inc11,428$865.4K0.02%+1,602+16.3%Added
Engineers Gate Manager LP10,682$808.9K0.03%+4,434+71.0%Added
Park Avenue Securities LLC10,535$798.0K0.01%−1,118−9.6%Reduced
Bridgewater Associates, LP10,501$795.2K0.00%−25,316−70.7%Reduced
Occudo Quantitative Strategies LP10,257$776.8K0.07%−15,613−60.4%Reduced
Bayesian Capital Management, LP10,035$760.0K0.09%+900+9.9%Added
Stifel Financial Corp9,954$753.8K0.00%+3,412+52.2%Added
Millennium Management LLC9,917$751.0K0.00%−133,047−93.1%Reduced
State Board of Administration of Florida Retirement System9,843$745.4K0.00%00.0%Unchanged
Lakeview Capital Partners, LLC9,250$712.9K0.22%−75−0.8%Reduced
Squarepoint Ops LLC8,828$668.5K0.00%−12,285−58.2%Reduced
Arizona State Retirement System8,787$665.4K0.01%+385+4.6%Added
D.A. Davidson & Co.8,507$644.2K0.01%+8,507New
Teacher Retirement System of Texas8,274$627.0K0.00%+1,845+28.7%Added
Montanaro Asset Management Ltd8,250$624.8K0.10%−1,750−17.5%Reduced
Advisory Services Network, LLC7,626$577.5K0.02%+549+7.8%Added
Cetera Investment Advisers7,154$541.8K0.00%−1,895−20.9%Reduced
Harbour Capital Advisors, LLC7,141$540.8K0.16%+1,975+38.2%Added
Simplex Trading, LLC7,094$537.0K0.02%−1,663−19.0%Reduced
Dynamic Technology Lab Private Ltd6,940$526.0K0.05%+6,940New
Courier Capital LLC6,655$504.0K0.06%00.0%Unchanged
AQR Capital Management LLC6,567$497.3K0.00%+1,197+22.3%Added
Truist Financial Corp6,387$483.7K0.00%+182+2.9%Added
US Bancorp6,111$462.8K0.00%+5,359+712.6%Added
Henshaw Capital LLC5,913$447.8K0.03%−1,173−16.6%Reduced
HighTower Advisors, LLC5,717$434.0K0.00%−573−9.1%Reduced
Abn Amro Investment Solutions5,553$420.5K0.01%+5,553New
Spouting Rock Asset Management, LLC5,513$417.5K0.15%−4,554−45.2%Reduced
M&T Bank Corp5,380$407.7K0.00%−1,388−20.5%Reduced
First Republic Investment Management, Inc.5,250$397.6K0.00%+5,250New
SG Americas Securities, LLC5,177$392.0K0.01%−1,529−22.8%Reduced
J.W. Cole Advisors, Inc.5,130$388.5K0.03%+5,130New
Mount Yale Investment Advisors, LLC5,129$388.4K0.04%+1,844+56.1%Added
Wealthcare Advisory Partners LLC5,119$387.7K0.02%+183+3.7%Added
Arcadia Investment Management Corp4,927$373.1K0.08%+1,338+37.3%Added
Zurcher Kantonalbank (Zurich Cantonalbank)4,911$371.9K0.00%+462+10.4%Added
Financial Perspectives, Inc4,709$356.6K0.17%00.0%Unchanged
Public Employees Retirement Association of Colorado4,319$327.0K0.00%+4,319New
Amalgamated Bank4,296$325.0K0.00%−793−15.6%Reduced
Jennison Associates LLC4,288$324.7K0.00%+4,288New
Pictet Asset Management SA4,146$314.0K0.00%+642+18.3%Added
Moran Wealth Management, LLC3,970$300.6K0.01%−1,707−30.1%Reduced
Acadian Asset Management LLC3,877$293.0K0.00%+3,877New
Glenmede Trust Co NA3,867$292.8K0.00%+3,867New
State of Wisconsin Investment Board3,821$289.4K0.00%+109+2.9%Added
Rockefeller Capital Management L.P.3,769$284.0K0.00%+3,531+1,483.6%Added
Y-Intercept (Hong Kong) Ltd3,685$279.1K0.03%+3,685New
ProShare Advisors LLC3,591$271.9K0.00%−335−8.5%Reduced
Virtu Financial LLC3,570$270.0K0.03%+3,570New
Victory Capital Management Inc3,470$262.8K0.00%+162+4.9%Added
Handelsbanken Fonder AB3,300$250.0K0.00%00.0%Unchanged
BlueCrest Capital Management Ltd3,000$227.2K0.02%+3,000New
Boothbay Fund Management, LLC2,795$211.7K0.01%+2,795New
STRS Ohio2,600$196.0K0.00%00.0%Unchanged
Ameritas Investment Partners, Inc.2,392$181.1K0.01%00.0%Unchanged
Citigroup Inc2,339$177.1K0.00%+1,134+94.1%Added
Lagoda Investment Management, L.P.1,800$136.3K0.10%+1,800New
Metropolitan Life Insurance Co1,636$123.9K0.01%−204−11.1%Reduced
Leonteq Securities AG1,229$93.1K0.01%00.0%Unchanged
Harbor Investment Advisory, LLC1,166$88.3K0.01%−229−16.4%Reduced
Point72 Asset Management, L.P.1,100$83.3K0.00%+1,100New
Tucker Asset Management LLC823$62.3K0.02%+823New
Dark Forest Capital Management LP668$50.6K0.01%+668New
MCF Advisors LLC611$46.3K0.00%−184−23.1%Reduced
Tower Research Capital LLC (TRC)593$45.0K0.00%−3,995−87.1%Reduced
Rise Advisors, LLC579$43.8K0.03%00.0%Unchanged
Belpointe Asset Management LLC558$42.3K0.00%+190+51.6%Added
Central Trust Co550$41.7K0.00%00.0%Unchanged
First Horizon Advisors, Inc.544$41.2K0.00%+169+45.1%Added
Lazard Asset Management LLC530$40.0K0.00%+530New
Ancora Advisors, LLC500$37.9K0.00%+500New
Adirondack Trust Co460$34.8K0.02%00.0%Unchanged
Oakworth Capital, Inc.412$31.2K0.00%00.0%Unchanged
Lindbrook Capital, LLC339$25.7K0.00%+1+0.3%Added
Walleye Trading LLC329$24.9K0.00%+173+110.9%Added