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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 2021

Institutional positions in TransMedics Group, Inc. as of Dec 31, 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
121
+2 vs. Q3 2021
Shares held
20.1M
+1.77M (+9.7%) vs. Q3 2021
Total value
$384.7M
−$221.3M (−36.5%) vs. Q3 2021
New holders
25
42 more added
Sold out
23
29 more reduced

1 institution that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2021: 121 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 2021: $384.7M
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 2021

Shares, value and share of portfolio for each institution holding TransMedics Group, Inc.; share changes are against Q3 2021.

Institutions holding TMDX in Q4 2021
InstitutionSharesValue% of portfolioChange in sharesAction
FMR LLC4,165,246$79.8M0.01%+13,689+0.3%Added
BlackRock Inc.1,900,939$36.4M0.00%+53,571+2.9%Added
Sandhill Capital Partners LLC1,805,518$34.6M2.69%+365,473+25.4%Added
Macquarie Group Ltd1,651,286$31.6M0.03%+27,070+1.7%Added
Credit Suisse AG1,516,368$29.1M0.02%+750.0%Added
Vanguard Group Inc1,330,519$25.5M0.00%+68,288+5.4%Added
State Street Corp818,440$15.7M0.00%+17,169+2.1%Added
Bank of New York Mellon Corp635,891$12.2M0.00%+535,782+535.2%Added
Bellevue Group AG581,029$11.1M0.11%00.0%Unchanged
Kornitzer Capital Management Inc467,284$8.95M0.13%+467,284New
Geode Capital Management, LLC455,440$8.73M0.00%+18,559+4.2%Added
AXA S.A.363,953$6.97M0.02%+12,085+3.4%Added
Dimensional Fund Advisors LP359,549$6.89M0.00%−17,113−4.5%Reduced
Emerald Mutual Fund Advisers Trust300,492$5.76M0.20%−40,000−11.7%Reduced
Northern Trust Corp284,840$5.46M0.00%−2,234−0.8%Reduced
Silvercrest Asset Management Group LLC266,231$5.10M0.03%+60,507+29.4%Added
Emerald Advisers, LLC244,816$4.69M0.17%−8,562−3.4%Reduced
Charles Schwab Investment Management Inc192,732$3.69M0.00%+3,799+2.0%Added
Price T Rowe Associates Inc186,263$3.57M0.00%+186,263New
Moody Aldrich Partners LLC166,078$3.18M0.44%+32,209+24.1%Added
Next Century Growth Investors LLC161,819$3.10M0.28%−2,934−1.8%Reduced
Bank of America Corp161,008$3.08M0.00%−13,492−7.7%Reduced
Nuveen Asset Management, LLC141,511$2.71M0.00%−912−0.6%Reduced
HarbourVest Partners LLC116,123$2.23M0.28%+116,123New
Bullseye Asset Management LLC117,031$2.22M0.88%00.0%Unchanged
Millrace Asset Group, Inc.83,723$1.60M0.94%+83,723New
Essex Investment Management Co LLC82,255$1.58M0.18%+6,396+8.4%Added
Taylor Wealth Management Partners72,782$1.40M0.49%−2,233−3.0%Reduced
Federated Hermes, Inc.72,811$1.39M0.00%+22,405+44.4%Added
King Luther Capital Management Corp71,575$1.37M0.01%00.0%Unchanged
Royce & Associates LP61,000$1.17M0.01%+61,000New
Swiss National Bank54,900$1.05M0.00%00.0%Unchanged
Envestnet Asset Management Inc54,236$1.04M0.00%+949+1.8%Added
Two Sigma Investments, LP53,900$1.03M0.00%+12,400+29.9%Added
Morgan Stanley53,416$1.02M0.00%−72,742−57.7%Reduced
Russell Investments Group, Ltd.51,630$987.0K0.00%−28,393−35.5%Reduced
Skylands Capital, LLC51,200$981.0K0.11%+51,200New
Deutsche Bank AG45,965$881.0K0.00%+1,662+3.8%Added
Squarepoint Ops LLC41,356$792.0K0.00%+6,319+18.0%Added
US Bancorp35,971$689.0K0.00%−943−2.6%Reduced
California State Teachers Retirement System35,168$674.0K0.00%+589+1.7%Added
Gsa Capital Partners LLP33,499$642.0K0.08%+33,499New
Barclays PLC31,459$603.0K0.00%+20,866+197.0%Added
UBS Asset Management Americas Inc29,830$571.5K0.00%00.0%Unchanged
Baillie Gifford & Co28,971$555.0K0.00%+27,749+2,270.8%Added
Wells Fargo & Company28,091$538.0K0.00%+16,228+136.8%Added
Bridgewater Associates, LP26,125$501.0K0.00%−3,201−10.9%Reduced
UBS Group AG25,335$486.0K0.00%+22,310+737.5%Added
Principal Financial Group Inc24,319$466.0K0.00%−13,606−35.9%Reduced
Rhumbline Advisers23,584$452.0K0.00%−371−1.5%Reduced
Glenmede Trust Co NA21,505$412.0K0.00%+7,479+53.3%Added
Alliancebernstein L.P.21,000$402.0K0.00%−2,100−9.1%Reduced
Jump Financial, LLC20,900$400.0K0.03%+9,300+80.2%Added
Susquehanna Fundamental Investments, LLC20,311$389.0K0.01%−4,000−16.5%Reduced
Marshall Wace, LLP20,159$386.0K0.00%+20,159New
New York State Common Retirement Fund18,721$359.0K0.00%−41−0.2%Reduced
Jane Street Group, LLC18,735$359.0K0.00%+18,735New
Hamilton Lane Advisors LLC18,607$357.0K0.05%+18,607New
Park Avenue Securities LLC16,764$321.0K0.01%+835+5.2%Added
Boston Partners16,560$317.0K0.00%+16,560New
State of Wisconsin Investment Board15,500$297.0K0.00%+15,500New
Goldman Sachs Group Inc15,439$296.0K0.00%−5,278−25.5%Reduced
Voloridge Investment Management, LLC14,258$273.0K0.00%−26,982−65.4%Reduced
American International Group, Inc.13,774$264.0K0.00%−413−2.9%Reduced
Manufacturers Life Insurance Company, The13,683$262.0K0.00%−169−1.2%Reduced
Quadrature Capital Ltd13,420$257.0K0.01%+5,927+79.1%Added
Citadel Advisors LLC13,216$254.0K0.00%+2,391+22.1%Added
Wolverine Trading, LLC12,914$251.0K0.00%+12,914New
Dynamic Technology Lab Private Ltd13,078$251.0K0.03%+13,078New
Legal & General Group Plc12,871$247.0K0.00%+44+0.3%Added
Advisor Group Holdings, Inc.12,225$233.0K0.00%−2,580−17.4%Reduced
American Portfolios Advisors12,080$231.5K0.01%+8,175+209.3%Added
Cetera Investment Advisers11,400$218.0K0.00%+724+6.8%Added
Invesco Ltd.11,173$213.0K0.00%−241−2.1%Reduced
Montanaro Asset Management Ltd10,500$201.0K0.02%00.0%Unchanged
Voya Investment Management LLC10,189$195.0K0.00%−237−2.3%Reduced
State Board of Administration of Florida Retirement System10,193$195.0K0.00%00.0%Unchanged
JPMorgan Chase & Co10,176$194.0K0.00%+469+4.8%Added
Truist Financial Corp10,067$193.0K0.00%+1,057+11.7%Added
MetLife Investment Management9,254$177.3K0.00%00.0%Unchanged
Metropolitan Life Insurance Co8,147$156.1K0.00%00.0%Unchanged
Citigroup Inc7,033$135.0K0.00%+3,691+110.4%Added
BNP Paribas Arbitrage, SA5,594$107.2K0.00%+551+10.9%Added
Allspring Global Investments Holdings, LLC5,194$99.0K0.00%+5,194New
Royal Bank of Canada5,145$98.0K0.00%+2,129+70.6%Added
Ensign Peak Advisors, Inc5,080$97.0K0.00%+5,080New
Financial Perspectives, Inc4,709$90.2K0.04%00.0%Unchanged
Sargent Bickham Lagudis LLC4,403$84.0K0.01%00.0%Unchanged
Quantbot Technologies LP3,935$75.0K0.01%−1,000−20.3%Reduced
Group One Trading, L.P.3,651$70.0K0.00%−496−12.0%Reduced
Cutler Group LP2,974$56.0K0.00%−3,633−55.0%Reduced
Simplex Trading, LLC2,576$49.0K0.00%−18,274−87.6%Reduced
Ameritas Investment Partners, Inc.2,122$41.0K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)2,182$41.0K0.00%+1,776+437.4%Added
Howe & Rusling Inc2,000$38.0K0.00%00.0%Unchanged
Barrett Asset Management, LLC2,000$38.0K0.00%00.0%Unchanged
The PNC Financial Services Group, Inc.1,550$30.0K0.00%−1,000−39.2%Reduced
Harbor Investment Advisory, LLC1,532$29.0K0.00%00.0%Unchanged
Eaton Vance Management1,300$25.0K0.00%00.0%Unchanged
NEXT Financial Group, Inc1,322$25.0K0.00%+803+154.7%Added