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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
Voya Investment Management LLC11,609$879.1K0.00%−19,148−62.3%Reduced
GWM Advisors LLC11,648$882.1K0.01%−3,708−24.1%Reduced
Bank of Hawaii11,689$885.2K0.05%+2,181+22.9%Added
Manufacturers Life Insurance Company, The12,164$921.2K0.00%+433+3.7%Added
Quantbot Technologies LP12,243$927.2K0.07%+5,965+95.0%Added
Two Sigma Investments, LP12,538$949.5K0.00%−35,910−74.1%Reduced
Susquehanna International Group, LLP12,657$958.5K0.00%+12,657New
Mirae Asset Global Investments Co., Ltd.13,240$1.00M0.00%00.0%Unchanged
Millrace Asset Group, Inc.13,309$1.01M1.18%−4,631−25.8%Reduced
Janus Henderson Group PLC14,234$1.08M0.00%+9,217+183.7%Added
UBS Group AG14,336$1.09M0.00%+4,472+45.3%Added
Kula Investments, LLC14,499$1.10M0.27%+14,499New
American International Group, Inc.14,726$1.12M0.01%+294+2.0%Added
Legal & General Group Plc14,741$1.12M0.00%+1,705+13.1%Added
Price T Rowe Associates Inc15,041$1.14M0.00%+529+3.6%Added
Trexquant Investment LP15,106$1.14M0.03%−6,691−30.7%Reduced
AtonRa Partners15,176$1.15M1.68%−2,169−12.5%Reduced
Barclays PLC15,540$1.18M0.00%+7,346+89.7%Added
Nisa Investment Advisors, LLC15,542$1.18M0.01%−30−0.2%Reduced
LPL Financial LLC15,689$1.19M0.00%+7,374+88.7%Added
MetLife Investment Management16,190$1.23M0.01%00.0%Unchanged
Algert Global LLC17,055$1.29M0.06%+9,074+113.7%Added
Prudential Financial Inc17,168$1.30M0.00%+17,168New
Syntal Capital Partners, LLC17,380$1.32M0.48%+17,380New
Royal Bank of Canada17,651$1.34M0.00%+13,071+285.4%Added
Axiom Investors LLC17,850$1.35M0.02%+17,850New
ClariVest Asset Management LLC18,988$1.44M0.06%−112−0.6%Reduced
Soleus Capital Management, L.P.19,000$1.44M0.18%−24,500−56.3%Reduced
Intrinsic Edge Capital Management LLC20,000$1.51M0.15%+20,000New
Raymond James & Associates20,278$1.54M0.00%+13,094+182.3%Added
Jane Street Group, LLC21,114$1.60M0.00%+14,037+198.3%Added
Wells Fargo & Company22,558$1.71M0.00%+1,949+9.5%Added
Schonfeld Strategic Advisors LLC22,738$1.72M0.02%−26,503−53.8%Reduced
HRT Financial LP23,177$1.75M0.02%+17,060+278.9%Added
Federated Hermes, Inc.25,963$1.97M0.00%+21,992+553.8%Added
Putnam Investments LLC27,176$2.06M0.00%−9,695−26.3%Reduced
Principal Financial Group Inc27,954$2.12M0.00%−12,259−30.5%Reduced
Moody Aldrich Partners LLC28,002$2.12M0.43%+28,002New
Connor, Clark & Lunn Investment Management Ltd.28,024$2.12M0.01%+28,024New
Gotham Asset Management, LLC29,259$2.22M0.05%+12,242+71.9%Added
Envestnet Asset Management Inc30,754$2.33M0.00%+2,522+8.9%Added
Alliancebernstein L.P.31,700$2.40M0.00%00.0%Unchanged
Mariner, LLC32,012$2.42M0.01%−99−0.3%Reduced
Legato Capital Management LLC33,079$2.51M0.46%00.0%Unchanged
Natixis34,678$2.63M0.02%−36,710−51.4%Reduced
Jump Financial, LLC35,185$2.66M0.11%+11,050+45.8%Added
State of New Jersey Common Pension Fund D35,970$2.72M0.01%−2,956−7.6%Reduced
California State Teachers Retirement System37,995$2.88M0.00%−96−0.3%Reduced
BCJ Capital Management, LLC38,631$2.93M0.27%+38,631New
Advisory Research Inc39,749$3.01M0.49%+22,659+132.6%Added
First Trust Advisors LP40,496$3.07M0.00%+1,758+4.5%Added
Tudor Investment Corp Et Al40,582$3.07M0.06%−35,628−46.7%Reduced
UBS Asset Management Americas Inc41,169$3.12M0.00%+1,947+5.0%Added
Rhumbline Advisers42,456$3.21M0.00%+2,421+6.0%Added
Advisor Group Holdings, Inc.46,852$3.55M0.01%+11,668+33.2%Added
EAM Investors, LLC48,246$3.65M0.72%−9,698−16.7%Reduced
Deutsche Bank AG50,017$3.79M0.00%−28,437−36.2%Reduced
Pura Vida Investments, LLC55,000$4.17M0.42%−35,000−38.9%Reduced
Twinbeech Capital LP56,233$4.26M0.09%+56,233New
Calamos Advisors LLC56,704$4.29M0.02%−3,528−5.9%Reduced
Cubist Systematic Strategies, LLC58,230$4.41M0.04%+19,836+51.7%Added
Two Sigma Advisers, LP58,400$4.42M0.01%+2,100+3.7%Added
Divisadero Street Capital Management, LP60,000$4.54M1.99%+22,000+57.9%Added
Qube Research & Technologies Ltd62,642$4.74M0.03%+51,366+455.5%Added
Renaissance Technologies LLC63,199$4.79M0.01%+63,199New
Swiss National Bank65,500$4.96M0.00%−6,400−8.9%Reduced
New York State Common Retirement Fund69,325$5.25M0.01%+33,652+94.3%Added
EAM Global Investors LLC69,777$5.28M1.48%−15,254−17.9%Reduced
Granahan Investment Management Inc69,959$5.30M0.16%+69,959New
Ziegler Capital Management, LLC70,090$5.31M0.21%+64,457+1,144.3%Added
Essex Investment Management Co LLC70,580$5.35M0.78%+10,088+16.7%Added
Silvercrest Asset Management Group LLC72,405$5.48M0.04%−16,337−18.4%Reduced
Nuveen Asset Management, LLC82,922$6.28M0.00%−12,270−12.9%Reduced
Bullseye Asset Management LLC83,012$6.29M3.21%00.0%Unchanged
Ensign Peak Advisors, Inc83,132$6.30M0.01%+39,332+89.8%Added
Quadrature Capital Ltd85,220$6.45M0.18%+33,086+63.5%Added
BNP Paribas Arbitrage, SA85,301$6.46M0.01%+39,362+85.7%Added
Citadel Advisors LLC87,023$6.59M0.01%−160,129−64.8%Reduced
Lisanti Capital Growth, LLC87,190$6.60M0.92%−15,995−15.5%Reduced
Russell Investments Group, Ltd.88,067$6.67M0.01%−22,783−20.6%Reduced
Goldman Sachs Group Inc98,219$7.44M0.00%−23,957−19.6%Reduced
Braidwell LP98,459$7.46M0.25%−204,726−67.5%Reduced
JPMorgan Chase & Co99,675$7.55M0.00%+67,753+212.2%Added
Kent Lake Capital LLC104,900$7.94M5.37%−145,100−58.0%Reduced
Oberweis Asset Management Inc108,300$8.20M1.27%+25,900+31.4%Added
ArrowMark Colorado Holdings LLC112,570$8.52M0.10%−34,871−23.7%Reduced
Peregrine Capital Management LLC112,646$8.53M0.25%−22,242−16.5%Reduced
Norges Bank129,500$9.81M0.00%+129,500New
Voloridge Investment Management, LLC129,588$9.81M0.05%+13,164+11.3%Added
Castleark Management LLC131,275$9.94M0.49%00.0%Unchanged
Ameriprise Financial Inc139,691$10.6M0.00%+12,740+10.0%Added
AXA S.A.159,402$12.1M0.04%−48,202−23.2%Reduced
Royce & Associates LP159,500$12.1M0.12%−32,500−16.9%Reduced
Bank of America Corp189,149$14.3M0.00%−6,896−3.5%Reduced
Charles Schwab Investment Management Inc233,664$17.7M0.01%+1110.0%Added
American Century Companies Inc245,833$18.6M0.01%−134,949−35.4%Reduced
Ophir Asset Management Pty Ltd245,417$18.6M3.46%−256,809−51.1%Reduced
Dimensional Fund Advisors LP247,598$18.8M0.01%−5,257−2.1%Reduced
Baillie Gifford & Co252,972$19.2M0.02%−347−0.1%Reduced
SEI Investments Co272,136$20.6M0.04%+238,518+709.5%Added