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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

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2026-09-142026-09-11Weill DavidP1,336Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-09-11 and its public availability date is 2026-09-14. Subtracting those calendar dates gives 3 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code P: a purchase. A purchase code is only one eligibility check. Confirm reporting-owner role, amendment lineage and coverage before treating it as a strategy input.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0001193125-26-390650 ↗13F 0002033266-26-000007 ↗13F 0001948780-26-000011 ↗

Recent Form 4 activity

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2026-09-142026-09-11Weill DavidP1,336Not reported

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

Recent institutional filing receipts

Inspect all 50 displayed rows: 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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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.