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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 2021

Institutional positions in TransMedics Group, Inc. as of Sep 30, 2021. 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
120
−3 vs. Q2 2021
Shares held
19.2M
+428.4K (+2.3%) vs. Q2 2021
Total value
$636.5M
+$13.0M (+2.1%) vs. Q2 2021
New holders
21
49 more added
Sold out
24
25 more reduced

1 institution that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2021: 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 2021: 120 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 2021: $636.5M
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 2021

Shares, value and share of portfolio for each institution holding TransMedics Group, Inc.; share changes are against Q2 2021.

Institutions holding TMDX in Q3 2021
InstitutionSharesValue% of portfolioChange in sharesAction
BerganKDV Wealth Management, LLC10$00.00%00.0%Unchanged
First Horizon Advisors, Inc.20$00.00%+20New
Quadrant Capital Group LLC18$1.00K0.00%+18New
Delta Asset Management LLC100$3.00K0.00%+100New
TCI Wealth Advisors, Inc.113$4.00K0.00%+113New
Clearstead Advisors, LLC150$5.00K0.00%00.0%Unchanged
Sandy Spring Bank153$5.00K0.00%00.0%Unchanged
Lindbrook Capital, LLC225$7.00K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)406$13.0K0.00%−3,226−88.8%Reduced
Newbridge Financial Services Group, Inc.400$13.0K0.01%00.0%Unchanged
Koshinski Asset Management, Inc.400$13.2K0.00%+400New
Rockefeller Capital Management L.P.433$14.0K0.00%00.0%Unchanged
STRS Ohio500$16.0K0.00%+500New
NEXT Financial Group, Inc519$17.0K0.00%−4,176−88.9%Reduced
Central Trust Co500$17.0K0.00%00.0%Unchanged
Captrust Financial Advisors690$23.0K0.00%00.0%Unchanged
ACT Capital Management, LLC1,000$33.0K0.02%00.0%Unchanged
Lazard Asset Management LLC1,133$37.0K0.00%+1,133New
Baillie Gifford & Co1,222$40.0K0.00%+822+205.5%Added
Eaton Vance Management1,300$43.0K0.00%00.0%Unchanged
O'Shaughnessy Asset Management, LLC1,318$44.0K0.00%00.0%Unchanged
Harbor Investment Advisory, LLC1,532$51.0K0.01%+360+30.7%Added
Howe & Rusling Inc2,000$66.0K0.01%00.0%Unchanged
Barrett Asset Management, LLC2,000$66.0K0.00%00.0%Unchanged
Ameritas Investment Partners, Inc.2,122$70.0K0.00%00.0%Unchanged
The PNC Financial Services Group, Inc.2,550$84.0K0.00%00.0%Unchanged
Royal Bank of Canada3,016$100.0K0.00%−1,302−30.2%Reduced
UBS Group AG3,025$100.0K0.00%+675+28.7%Added
Citigroup Inc3,342$111.0K0.00%+1,483+79.8%Added
American Portfolios Advisors3,905$129.2K0.00%+3,051+357.3%Added
Group One Trading, L.P.4,147$137.0K0.00%+572+16.0%Added
Sargent Bickham Lagudis LLC4,403$146.0K0.01%00.0%Unchanged
Financial Perspectives, Inc4,709$155.8K0.08%+1,480+45.8%Added
Quantbot Technologies LP4,935$163.0K0.01%+335+7.3%Added
BNP Paribas Arbitrage, SA5,043$166.9K0.00%+4,166+475.0%Added
IFP Advisors, Inc5,380$179.0K0.00%+356+7.1%Added
Ameriprise Financial Inc6,037$200.0K0.00%−475−7.3%Reduced
Parametric Portfolio Associates LLC6,051$200.0K0.00%+6,051New
Cutler Group LP6,607$218.0K0.02%+4,169+171.0%Added
Arizona State Retirement System6,772$224.0K0.00%+76+1.1%Added
Global Retirement Partners, LLC6,841$226.0K0.02%+2,574+60.3%Added
Quadrature Capital Ltd7,493$248.0K0.01%+7,493New
Henshaw Capital LLC7,878$260.7K0.02%+1,815+29.9%Added
Metropolitan Life Insurance Co8,147$269.6K0.00%00.0%Unchanged
Truist Financial Corp9,010$298.0K0.00%+357+4.1%Added
Kovack Advisors, Inc.9,200$304.0K0.03%+1,900+26.0%Added
MetLife Investment Management9,254$306.2K0.00%−2,965−24.3%Reduced
SG Americas Securities, LLC9,408$311.0K0.00%+9,408New
JPMorgan Chase & Co9,707$322.0K0.00%−316−3.2%Reduced
HighTower Advisors, LLC10,203$336.0K0.00%+55+0.5%Added
State Board of Administration of Florida Retirement System10,193$337.0K0.00%00.0%Unchanged
Voya Investment Management LLC10,426$345.0K0.00%00.0%Unchanged
Montanaro Asset Management Ltd10,500$347.0K0.04%+2,650+33.8%Added
Barclays PLC10,593$350.0K0.00%+7,260+217.8%Added
Cetera Investment Advisers10,676$353.0K0.01%+287+2.8%Added
Citadel Advisors LLC10,825$358.0K0.00%−65,909−85.9%Reduced
Invesco Ltd.11,414$378.0K0.00%+2,218+24.1%Added
Jump Financial, LLC11,600$384.0K0.03%+11,600New
Wells Fargo & Company11,863$392.0K0.00%+2,455+26.1%Added
Walleye Capital LLC12,454$412.0K0.01%+12,454New
Legal & General Group Plc12,827$424.0K0.00%+9,032+238.0%Added
Manufacturers Life Insurance Company, The13,852$458.0K0.00%−960−6.5%Reduced
Signature Wealth Management Partners, LLC14,000$463.0K0.42%00.0%Unchanged
Glenmede Trust Co NA14,026$464.0K0.00%+14,026New
American International Group, Inc.14,187$469.0K0.00%−336−2.3%Reduced
Gladstone Institutional Advisory LLC14,270$472.0K0.05%−1,200−7.8%Reduced
Advisor Group Holdings, Inc.14,805$490.0K0.00%+2,176+17.2%Added
Park Avenue Securities LLC15,929$527.0K0.01%+782+5.2%Added
New York State Common Retirement Fund18,762$621.0K0.00%−4,143−18.1%Reduced
Goldman Sachs Group Inc20,717$686.0K0.00%−4,650−18.3%Reduced
Simplex Trading, LLC20,850$708.0K0.03%+500+2.5%Added
Alliancebernstein L.P.23,100$764.0K0.00%00.0%Unchanged
Rhumbline Advisers23,955$793.0K0.00%+1,166+5.1%Added
Susquehanna Fundamental Investments, LLC24,311$804.0K0.01%+24,311New
Man Group plc26,199$867.0K0.00%+7,600+40.9%Added
Bridgewater Associates, LP29,326$970.0K0.01%+121+0.4%Added
UBS Asset Management Americas Inc29,830$987.1K0.00%+6,049+25.4%Added
M&T Bank Corp30,900$1.02M0.00%−2,606−7.8%Reduced
California State Teachers Retirement System34,579$1.14M0.00%−1,143−3.2%Reduced
Squarepoint Ops LLC35,037$1.16M0.01%+14,094+67.3%Added
HSBC Holdings PLC35,020$1.16M0.00%+35,020New
US Bancorp36,914$1.22M0.00%+36,864+73,728.0%Added
Principal Financial Group Inc37,925$1.25M0.00%−1,120−2.9%Reduced
Voloridge Investment Management, LLC41,240$1.36M0.01%−11,837−22.3%Reduced
Two Sigma Investments, LP41,500$1.37M0.00%−58,200−58.4%Reduced
Deutsche Bank AG44,303$1.47M0.00%+8,054+22.2%Added
Federated Hermes, Inc.50,406$1.67M0.00%+50,275+38,377.9%Added
Envestnet Asset Management Inc53,287$1.76M0.00%+5,717+12.0%Added
Swiss National Bank54,900$1.82M0.00%+600+1.1%Added
King Luther Capital Management Corp71,575$2.37M0.01%00.0%Unchanged
Taylor Wealth Management Partners75,015$2.48M0.89%+2,330+3.2%Added
Essex Investment Management Co LLC75,859$2.51M0.31%−488−0.6%Reduced
Eventide Asset Management, LLC77,364$2.56M0.03%00.0%Unchanged
Portolan Capital Management, LLC78,106$2.58M0.19%+78,106New
Russell Investments Group, Ltd.80,023$2.65M0.00%+80,023New
Bank of New York Mellon Corp100,109$3.31M0.00%+24,827+33.0%Added
Bullseye Asset Management LLC117,031$3.87M1.34%−440−0.4%Reduced
Calamos Advisors LLC118,141$3.91M0.02%+118,141New
Morgan Stanley126,158$4.17M0.00%+103,645+460.4%Added
Moody Aldrich Partners LLC133,869$4.43M0.56%+133,869New