Transmedics Group, Inc.: which funds bought and sold

Institutions that bought and sold Transmedics Group shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 199 institutions that filed 13F reports for both quarters added to or opened positions in Transmedics Group, and 229 cut or closed them. Together they sold a net 1.7M shares, −4.7% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 253K shares (−2.6%); index fund managers were net buyers of 533K shares (+4.5%). 60 opened a new position and 106 sold out entirely.

Bought, Q2 2026 199 institutions, 60 of them new holders Sold, Q2 2026 229 institutions, 106 of them sold out

Net change, all compared −1.7M shares (−4.7%)

Net change, active managers −253K shares (−2.6%), 23 bought, 30 sold

Buyers versus sellers

institutions compared, 470

199 bought 42 229 sold

Active managers and hedge funds 23 bought · 30 sold · −253K

Index fund managers 8 bought · 3 sold · +533K

Other institutions 168 bought · 196 sold · −2.0M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Citadel Advisors LLC Hedge fund	+497K +807.2%	559K	$37.1M
Blackrock, Inc. Index funds	+303K +5.7%	5.6M	$372M
Braidwell LP Hedge fund	+280K +85.1%	610K	$40.5M
Tidal Investments LLC	+251K New position	251K	$16.7M
Congress Asset Management Co Active manager	+228K New position	228K	$15.1M
Point72 Asset Management, L.P. Hedge fund	+193K New position	193K	$12.8M
Emerald Advisers, LLC	+148K +43.1%	490K	$32.6M
HRT Financial LP	+132K +398.8%	165K	$11M
Susquehanna International Group, LLP	+122K +90.8%	255K	$17M
State Street Corp Index funds	+101K +7.7%	1.4M	$94.3M
Dimensional Fund Advisors LP	+93K +18.1%	610K	$40.5M
DZ Bank AG Deutsche Zentral Genossenschafts Bank, Frankfurt Am Main	+75K New position	75K	$5M
Emerald Mutual Fund Advisers Trust	+73K +31.7%	302K	$20.1M
Portolan Capital Management, LLC	+72K +670.5%	82K	$5.5M
Firstwave Capital Management LLC	+67K +53.9%	191K	$12.7M
Imc-Chicago, LLC	+63K +226.9%	91K	$6M
Geode Capital Management, LLC Index funds	+56K +6.6%	895K	$59.5M
Hood River Capital Management LLC	+51K +7.3%	751K	$49.9M
Empowered Funds, LLC	+48K New position	48K	$3.2M
Osaic Holdings, Inc.	+47K +673.3%	54K	$3.6M

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Citadel Advisors LLC Hedge fund	+497K +807.2%	559K	$37.1M
Braidwell LP Hedge fund	+280K +85.1%	610K	$40.5M
Congress Asset Management Co Active manager	+228K New position	228K	$15.1M
Point72 Asset Management, L.P. Hedge fund	+193K New position	193K	$12.8M
FMR LLC Active manager	+37K +0.7%	5.1M	$341M
Holocene Advisors, LP Hedge fund	+34K New position	34K	$2.2M
Algert Global LLC Hedge fund	+32K +124.6%	57K	$3.8M
Wellington Management Group LLP Active manager	+30K +6.1%	516K	$34.3M
Brevan Howard Capital Management LP Hedge fund	+29K New position	29K	$1.9M
Lazard Asset Management LLC Active manager	+28K +42.8%	93K	$6.1M

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Invesco Ltd.	−643K −61.9%	395K	$26.2M
UBS Am, A Distinct Business Unit Of UBS Asset Management Americas LLC	−541K −57.6%	398K	$26.5M
Two Sigma Investments, LP Hedge fund	−316K −97.2%	8,945	$594,127
Goldman Sachs Group Inc	−307K −35.4%	560K	$37.2M
Price T Rowe Associates Inc Active manager	−301K −86.7%	46K	$3.1M
Morgan Stanley	−289K −41.6%	405K	$26.9M
Royce & Associates LP Active manager	−244K Sold out	0	—
Lord, Abbett & Co. LLC	−214K Sold out	0	—
Frontier Capital Management Co LLC Active manager	−170K −53.1%	150K	$10M
Candriam S.C.A.	−159K Sold out	0	—
Blair William & Co	−155K −89.2%	19K	$1.3M
Man Group PLC Hedge fund	−147K −92.8%	11K	$752,339
Arrowmark Colorado Holdings LLC	−141K −82.4%	30K	$2M
Jpmorgan Chase & Co	−116K −37.6%	192K	$13M
Exoduspoint Capital Management, LP Hedge fund	−107K −92.6%	8,553	$568,090
Next Century Growth Investors LLC	−96K Sold out	0	—
UBS Group AG	−93K −16.0%	488K	$32.4M
Montanaro Asset Management Ltd	−79K Sold out	0	—
Longaeva Partners L.P.	−69K Sold out	0	—
Envestnet Asset Management Inc	−64K −54.7%	53K	$3.5M

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Two Sigma Investments, LP Hedge fund	−316K −97.2%	8,945	$594,127
Price T Rowe Associates Inc Active manager	−301K −86.7%	46K	$3.1M
Royce & Associates LP Active manager	−244K Sold out	0	—
Frontier Capital Management Co LLC Active manager	−170K −53.1%	150K	$10M
Man Group PLC Hedge fund	−147K −92.8%	11K	$752,339
Exoduspoint Capital Management, LP Hedge fund	−107K −92.6%	8,553	$568,090
Millennium Management LLC Hedge fund	−58K −18.9%	248K	$16.5M
Engineers Gate Manager LP Hedge fund	−53K Sold out	0	—
Federated Hermes, Inc. Active manager	−51K Sold out	0	—
Tudor Investment Corp Et Al Hedge fund	−40K Sold out	0	—

New positions

largest by value

Institution	Shares	Value June 30, 2026
Tidal Investments LLC	251K	$16.7M
Congress Asset Management CoActive manager	228K	$15.1M
Point72 Asset Management, L.P.Hedge fund	193K	$12.8M
DZ Bank AG Deutsche Zentral Genossenschafts Bank, Frankfurt Am Main	75K	$5M
Empowered Funds, LLC	48K	$3.2M
Atom Investors LP	37K	$2.4M
Holocene Advisors, LPHedge fund	34K	$2.2M
Brevan Howard Capital Management LPHedge fund	29K	$1.9M
Wesbanco Bank Inc	25K	$1.7M
Headlands Technologies LLC	25K	$1.6M

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Royce & Associates LPActive manager	244K	$24.3M
Lord, Abbett & Co. LLC	214K	$21.3M
Candriam S.C.A.	159K	$15.8M
Next Century Growth Investors LLC	96K	$9.6M
Montanaro Asset Management Ltd	79K	$7.8M
Longaeva Partners L.P.	69K	$6.9M
Militia Capital Management LLC	59K	$5.8M
Engineers Gate Manager LPHedge fund	53K	$5.2M
Federated Hermes, Inc.Active manager	51K	$5.1M
Integrated Advisors Network LLC	48K	$4.7M

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 370
Ten largest holders: 56.1%
Index fund managers: 35.9%
Active managers and hedge funds: 27.4%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	23	30	8	15	−253K	−2.6%
Index fund managers	8	3	0	0	+533K	+4.5%
Other institutions	168	196	52	91	−2.0M	−13.7%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on Transmedics Group.

Only managers that filed a holdings report for both quarters are compared (470 here). 10 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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