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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 2023

Institutional positions in TransMedics Group, Inc. as of Dec 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
249
+28 vs. Q3 2023
Shares held
35.0M
+141.4K (+0.4%) vs. Q3 2023
Total value
$2.76B
+$852.8M (+44.7%) vs. Q3 2023
New holders
50
78 more added
Sold out
22
91 more reduced

1 institution that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2023: 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 2023: 249 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 2023: $2.76B
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 2023

Shares, value and share of portfolio for each institution holding TransMedics Group, Inc.; share changes are against Q3 2023.

Institutions holding TMDX in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Valmark Advisers, Inc.7,300$576.2K0.01%+7,300New
Zurcher Kantonalbank (Zurich Cantonalbank)7,396$583.8K0.00%+483+7.0%Added
Bridgewater Associates, LP7,426$586.1K0.00%−2,915−28.2%Reduced
Advisory Services Network, LLC7,454$588.3K0.01%−90−1.2%Reduced
Henshaw Capital LLC7,647$603.6K0.03%−600−7.3%Reduced
NinePointTwo Capital7,879$621.0K0.25%+7,879New
Harbour Capital Advisors, LLC8,371$626.7K0.17%+140+1.7%Added
Millrace Asset Group, Inc.8,123$641.0K0.63%−3,759−31.6%Reduced
ExodusPoint Capital Management, LP8,401$663.0K0.01%+3,400+68.0%Added
Cetera Investment Advisers8,503$671.1K0.01%+918+12.1%Added
Diametric Capital, LP8,507$671.5K0.41%+8,507New
Values First Advisors, Inc.8,665$683.9K0.41%+8,665New
State Board of Administration of Florida Retirement System9,063$715.3K0.00%00.0%Unchanged
Franklin Resources Inc9,112$719.2K0.00%−435−4.6%Reduced
Arizona State Retirement System9,122$720.0K0.01%−147−1.6%Reduced
D.A. Davidson & Co.9,220$727.7K0.01%+608+7.1%Added
HighTower Advisors, LLC9,257$729.0K0.00%−970−9.5%Reduced
Numerai GP LLC10,318$814.4K0.29%+4,472+76.5%Added
Los Angeles Capital Management LLC10,344$816.5K0.00%+2,219+27.3%Added
Oppenheimer & Co Inc10,356$817.4K0.02%+1,365+15.2%Added
Stifel Financial Corp10,929$862.6K0.00%−343−3.0%Reduced
Park Avenue Securities LLC11,002$868.0K0.01%−727−6.2%Reduced
AtonRa Partners11,193$883.5K1.76%−1,094−8.9%Reduced
Dynamic Technology Lab Private Ltd11,263$889.0K0.09%+11,263New
Citigroup Inc11,372$897.6K0.00%+4,390+62.9%Added
Oak Ridge Investments LLC11,454$904.1K0.10%−1,580−12.1%Reduced
Renaissance Technologies LLC11,699$923.0K0.00%−13,600−53.8%Reduced
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main12,132$957.6K0.00%+12,132New
M&T Bank Corp12,164$959.7K0.00%+3,541+41.1%Added
Aigen Investment Management, LP12,377$976.9K0.17%−1,866−13.1%Reduced
Truist Financial Corp12,462$983.6K0.00%+4,707+60.7%Added
Pacific Capital Partners Ltd12,553$990.8K0.75%+1,656+15.2%Added
D. E. Shaw & Co., Inc.12,564$991.7K0.00%+12,564New
EFG Asset Management (North America) Corp.12,640$998.5K0.19%−314−2.4%Reduced
Voya Investment Management LLC12,652$998.6K0.00%−18−0.1%Reduced
BNP Paribas Arbitrage, SA12,872$1.02M0.00%−12,014−48.3%Reduced
Captrust Financial Advisors13,489$1.06M0.00%−4,533−25.2%Reduced
Alberta Investment Management Corp13,752$1.09M0.01%−6,137−30.9%Reduced
Janus Henderson Group PLC14,197$1.12M0.00%−25−0.2%Reduced
Mirae Asset Global Investments Co., Ltd.14,940$1.18M0.00%00.0%Unchanged
SYSTM Wealth Solutions LLC15,050$1.19M0.16%+15,050New
Manufacturers Life Insurance Company, The15,338$1.21M0.00%−227−1.5%Reduced
Nisa Investment Advisors, LLC15,542$1.23M0.01%00.0%Unchanged
American International Group, Inc.15,771$1.24M0.01%−63−0.4%Reduced
Squarepoint Ops LLC16,001$1.26M0.01%+16,001New
Mariner, LLC16,259$1.28M0.00%−5,891−26.6%Reduced
First Trust Advisors LP16,364$1.29M0.00%−36,545−69.1%Reduced
MetLife Investment Management16,548$1.31M0.01%00.0%Unchanged
Raymond James Financial Services Advisors, Inc.17,252$1.36M0.00%+5,515+47.0%Added
LPL Financial LLC17,403$1.37M0.00%−5,471−23.9%Reduced
Legato Capital Management LLC17,927$1.41M0.18%+11,113+163.1%Added
Point72 Middle East FZE18,361$1.45M0.10%+7,373+67.1%Added
Dana Investment Advisors, Inc.19,478$1.54M0.07%−2,713−12.2%Reduced
Susquehanna International Group, LLP19,932$1.57M0.00%−32,381−61.9%Reduced
Abn Amro Investment Solutions20,919$1.65M0.03%−431−2.0%Reduced
Principal Financial Group Inc21,929$1.73M0.00%+3,858+21.3%Added
Apis Capital Advisors, LLC22,000$1.74M1.82%+22,000New
Natixis24,045$1.90M0.01%−5,712−19.2%Reduced
State of Wisconsin Investment Board25,694$2.03M0.01%+21,968+589.6%Added
Cubist Systematic Strategies, LLC26,198$2.07M0.03%−24,088−47.9%Reduced
Royal Bank of Canada26,859$2.12M0.00%+420+1.6%Added
Connor, Clark & Lunn Investment Management Ltd.27,148$2.14M0.01%−5,085−15.8%Reduced
Executive Wealth Management, LLC28,141$2.22M0.21%+6,928+32.7%Added
Millennium Management LLC28,227$2.23M0.00%+19,122+210.0%Added
Bayesian Capital Management, LP28,935$2.28M0.24%+8,500+41.6%Added
LMR Partners LLP29,446$2.32M0.06%+29,446New
Bank of Hawaii29,872$2.36M0.13%−1,176−3.8%Reduced
Liontrust Investment Partners LLP31,705$2.50M0.04%+26+0.1%Added
Legal & General Group Plc32,902$2.60M0.00%+2,115+6.9%Added
California State Teachers Retirement System34,286$2.71M0.00%−1,501−4.2%Reduced
State of New Jersey Common Pension Fund D35,598$2.81M0.01%−2,633−6.9%Reduced
Alliancebernstein L.P.37,500$2.96M0.00%00.0%Unchanged
UBS Group AG40,263$3.18M0.00%+16,309+68.1%Added
Ziegler Capital Management, LLC41,346$3.26M0.15%−52,444−55.9%Reduced
HSBC Holdings PLC41,650$3.29M0.00%+6,650+19.0%Added
UBS Asset Management Americas Inc42,830$3.38M0.00%−4,304−9.1%Reduced
Advisory Research Inc45,216$3.57M0.55%−7,146−13.6%Reduced
Rhumbline Advisers45,561$3.60M0.00%−1,034−2.2%Reduced
Moody Aldrich Partners LLC46,312$3.66M0.66%+24,290+110.3%Added
Lagoda Investment Management, L.P.49,990$3.95M2.69%+27,040+117.8%Added
Kent Lake Capital LLC55,000$4.34M1.68%−45,000−45.0%Reduced
Divisadero Street Capital Management, LP58,070$4.58M1.04%00.0%Unchanged
Nicholas Investment Partners, LP58,498$4.62M0.54%−355,216−85.9%Reduced
Swiss National Bank64,300$5.08M0.00%−7,300−10.2%Reduced
Lazard Asset Management LLC64,436$5.08M0.01%−9,286−12.6%Reduced
Osterweis Capital Management Inc64,565$5.10M0.32%+28,390+78.5%Added
Peregrine Capital Management LLC68,687$5.42M0.16%−17,113−19.9%Reduced
Bullseye Asset Management LLC70,512$5.57M2.66%00.0%Unchanged
Bank of Montreal80,226$6.51M0.00%−8,026−9.1%Reduced
Axiom Investors LLC83,750$6.61M0.06%+38,029+83.2%Added
Nuveen Asset Management, LLC86,549$6.83M0.00%+1,946+2.3%Added
Tudor Investment Corp Et Al86,941$6.86M0.09%+48,110+123.9%Added
Advisor Group Holdings, Inc.87,220$6.88M0.01%+64,322+280.9%Added
New York State Common Retirement Fund87,516$6.91M0.01%+25,849+41.9%Added
Kornitzer Capital Management Inc91,291$7.21M0.14%−20,000−18.0%Reduced
Jane Street Group, LLC92,370$7.29M0.01%−1,043−1.1%Reduced
Segall Bryant & Hamill, LLC94,239$7.44M0.14%+36,646+63.6%Added
Envestnet Asset Management Inc96,551$7.62M0.00%+15,799+19.6%Added
Lisanti Capital Growth, LLC109,435$8.64M2.04%+109,435New
JPMorgan Chase & Co116,365$9.18M0.00%−25,307−17.9%Reduced