TransMedics Group, Inc.
MX ˙ BMV ˙ US89377M1099
SecurityMX:TMDX / TransMedics Group, Inc.
InstitutionJump Financial, LLC
Latest Disclosed Ownership17,387 shares
Latest Disclosed Value $ 1,728,441
Jump Financial, LLC reports 411.38% increase in ownership of TMDX / TransMedics Group, Inc.

On May 14, 2026 - Jump Financial, LLC filed a 13F-HR form disclosing ownership of 17,387 shares of TransMedics Group, Inc. (MX:TMDX) valued at $1,728,441 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 3,400 shares of TransMedics Group, Inc.. This represents a change in shares of 411.38% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F TransMedics Group Common Stock 89377M109 17,387 13,987 411.38 1,728 318.40 0.0206
2026-02-17 2025-12-31 13F TransMedics Group Common Stock 89377M109 3,400 -123,632 -97.32 414 -97.10 0.0051
2025-11-13 2025-09-30 13F TransMedics Group Common Stock 89377M109 127,032 105,232 482.72 14,253 387.92 0.1706
2025-08-13 2025-06-30 13F TransMedics Group Common Stock 89377M109 21,800 21,800 2,921 0.0322
2025-02-13 2024-12-31 13F TransMedics Group Common Stock 89377M109 0 -70,689 -100.00 0 -100.00
2024-11-14 2024-09-30 13F TransMedics Group Common Stock 89377M109 70,689 60,049 564.37 11,098 592.76 0.2263
2024-11-14 2024-06-30 13F/A-1 TransMedics Group Common Stock 89377M109 10,640 10,640 1,603 0.0320
2024-08-14 2024-06-30 13F TRANSMEDICS GROUP Common Stock 89377M109 10,640 10,640 1,603 0.0320
2024-05-13 2024-03-31 13F TRANSMEDICS GROUP Common Stock 89377M109 0 -6,300 -100.00 0 -100.00
2024-10-21 2023-12-31 13F/A-1 TransMedics Group Common Stock 89377M109 6,300 -70,459 -91.79 497 -88.17 0.0164
2024-02-07 2023-12-31 13F TRANSMEDICS GROUP Common Stock 89377M109 6,300 -70,459 497 0.0164
2024-10-21 2023-09-30 13F/A-1 TransMedics Group Common Stock 89377M109 76,759 46,598 154.50 4,203 65.96 0.1587
2023-11-07 2023-09-30 13F TRANSMEDICS GROUP Common Stock 89377M109 76,759 46,598 4,203 0.1607
2024-10-21 2023-06-30 13F/A-1 TRANSMEDICS GROUP Common Stock 89377M109 30,161 -5,024 -14.28 2,533 -4.95 0.0951
2023-08-07 2023-06-30 13F TRANSMEDICS GROUP Common Stock 89377M109 30,161 -5,024 2,533 0.0954
2024-10-21 2023-03-31 13F/A-1 TransMedics Group Common Stock 89377M109 35,185 11,050 45.78 2,665 78.91 0.1108
2023-05-03 2023-03-31 13F TRANSMEDICS GROUP Common Stock 89377M109 35,185 11,050 2,665 0.1108
2023-02-14 2022-12-31 13F TRANSMEDICS GROUP Common Stock 89377M109 24,135 -5,065 -17.35 1,490 22.15 0.0790
2022-11-07 2022-09-30 13F TRANSMEDICS GROUP Common Stock 89377M109 29,200 29,200 1,219 0.0477
2024-09-06 2022-03-31 13F/A-1 TransMedics Group Common Stock 89377M109 0 -20,900 -100.00 0 -100.00
2022-05-12 2022-03-31 13F TransMedics Group Common Stock 89377M109 0 -20,900 0
2022-02-10 2021-12-31 13F TransMedics Group Common Stock 89377M109 20,900 9,300 80.17 400 4.17 0.0251
2021-11-12 2021-09-30 13F TRANSMEDICS GROUP Common Stock 89377M109 11,600 11,600 384 0.0277
2021-08-13 2021-06-30 13F TRANSMEDICS GROUP Common Stock 89377M109 0 -15,804 -100.00 0 -100.00
2021-05-17 2021-03-31 13F TRANSMEDICS GROUP Common Stock 89377M109 15,804 15,804 656 0.0613
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.