Public ownership evidence

TransMedics Group, Inc. Common Stock (TMDX) Ownership Disclosures

Read TMDX insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-10T12:08:28.848Z

Separate the three disclosure sources

Step 1 of 3

Recent Form 4 activity

TransMedics Group, Inc. Common Stock: source evidence dated 2026-10-10T12:08:28.848Z.

Available
2026-09-14
Trade date
2026-09-11
Reporting owners
Weill David
Code
P
Shares
1,336
Reported value
Not reported
What you should see

The displayed owner or issuer and source fields identify the receipt to verify; keep reporting and availability dates separate.

Step 2 of 3

Is this an insider transaction, 13F holding, or Congressional event?

Each source has different dates and units. Raw ticker-matched receipts, including amendments, are not deduplicated current ownership totals.

SEC 0001193125-26-390650
What you should see

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Step 3 of 3

Read TMDX fundamentals

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Read TMDX fundamentals
What you should see

Keep reporting dates and units beside the answer, and inspect its original citations.

Recent Form 4 activity

See the complete recent form 4 activity

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2026-09-142026-09-11Weill DavidP1,336Not reported
2026-07-152026-07-10Corcoran NicholasA11,727Not reported
2026-07-152026-07-10Corcoran NicholasA17,784Not reported
2026-07-152026-07-10Hernandez GerardoA17,246Not reported
2026-07-152026-07-10Hernandez GerardoA26,153Not reported
2026-07-152026-07-10Hassanein Waleed HA49,669Not reported
2026-07-152026-07-10Hassanein Waleed HA112,984Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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OPTIMIZE FINANCIAL INC.2026-06-302026-08-283,408$226,359None
Corient Private Wealth LP2026-06-302026-08-2819,285$1,280,904None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-03-312026-08-269,100$904,631None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-268,300$551,286None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2539,850$2,646,837None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-252,646,837$39,850,000None
Advisors Asset Management, Inc.2025-12-312026-08-221,656$201,452None
RB Capital Management, LLC2026-06-302026-08-195,081$337,480None
Ensign Peak Advisors, Inc2026-03-312026-08-1975,569$7,512,314None
Ensign Peak Advisors, Inc2025-12-312026-08-1980,603$9,805,355None
Ensign Peak Advisors, Inc2025-09-302026-08-1974,631$8,373,598None
Fulcrum Asset Management LLP2026-06-302026-08-19150$10,094None
Corient Private Wealth LP2026-06-302026-08-1819,289$1,281,170None
Empowered Funds, LLC2026-06-302026-08-1846,991$3,121,142None
Empowered Funds, LLC2026-06-302026-08-181,163$77,246None
CAPSTONE INVESTMENT ADVISORS, LLC2026-06-302026-08-1815,000,000$16,274,250None
CAPSTONE INVESTMENT ADVISORS, LLC2026-06-302026-08-189,652$641,086None
Jefferies Financial Group Inc.2026-06-302026-08-1880,000$86,981None
Odyssean, LLC2026-06-302026-08-1512,814$851,106None
AMERIFLEX GROUP, INC.2026-06-302026-08-157$465None
SEI INVESTMENTS CO2026-06-302026-08-1561,547$4,087,952None
SEI INVESTMENTS CO2026-06-302026-08-151,927$127,970None
Massar Capital Management, LP2026-06-302026-08-156,401$425,154None
Federation des caisses Desjardins du Quebec2026-06-302026-08-15345$22,891None
Federation des caisses Desjardins du Quebec2026-06-302026-08-15210$13,948None
JPL Wealth Management, LLC2026-06-302026-08-1510$665None
Advisors Asset Management, Inc.2026-06-302026-08-153,015$200,256None
Marex Group Ltd2026-06-302026-08-159,927$659,351None
NFSG Corp2026-06-302026-08-15300$19,926None
Militia Capital Partners, LP2025-12-312026-08-1512,000$1,459,800None
Militia Capital Partners, LP2025-09-302026-08-1513,000$1,458,600None
Militia Capital Partners, LP2025-06-302026-08-1510,000$1,340,100None
XTX Topco Ltd2026-06-302026-08-157,013$465,803None
Prestige Wealth Management Group LLC2026-06-302026-08-1527$1,794None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15328,666$21,829,996None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15328,666$21,829,996None
Foundations Investment Advisors, LLC2026-06-302026-08-154,643$308,388None
ExodusPoint Capital Management, LP2026-06-302026-08-158,553$568,090None
Diametric Capital, LP2026-06-302026-08-1510,981$729,358None
OSAIC HOLDINGS, INC.2026-06-302026-08-157$465None
OSAIC HOLDINGS, INC.2026-06-302026-08-15257$17,070None
OSAIC HOLDINGS, INC.2026-06-302026-08-1547,080$3,127,054None
OSAIC HOLDINGS, INC.2026-06-302026-08-156,692$444,443None
Schonfeld Strategic Advisors LLC2026-06-302026-08-1522,531$1,496,508None
Squarepoint Ops LLC2026-06-302026-08-153,900$259,038Call
Man Group plc2026-06-302026-08-1511,327$752,339None
Trexquant Investment LP2026-06-302026-08-1593,960$6,240,823None
MetLife Investment Management, LLC2026-06-302026-08-1519,991$1,327,802None
JANE STREET GROUP, LLC2026-06-302026-08-15259,400$17,229,348Put
JANE STREET GROUP, LLC2026-06-302026-08-15355,900$23,638,878Call

90-day public filing window, up to 50 source positions.

OPTIMIZE FINANCIAL INC. ↗Corient Private Wealth LP ↗VIRGINIA RETIREMENT SYSTEMS ET Al ↗VIRGINIA RETIREMENT SYSTEMS ET Al ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗Advisors Asset Management, Inc. ↗RB Capital Management, LLC ↗Ensign Peak Advisors, Inc ↗Ensign Peak Advisors, Inc ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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No records are available for this view.

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.

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