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Jim Simons's TransMedics Group, Inc. (TMDX) position

Not anymore: Jim Simons fully exited TMDX in Q1 2026. The position peaked at $20M in Q2 2024.
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Value at exit
$1.3M
Shares at exit
10K
Est. average buy price (i)
$117.02
Quarter-end price
$121.65

Estimated trade prices

Average price in quarters with purchases
$88.48
Average prices in quarters with sales
  • Q4 2025: $125.54 (135K shares sold)
  • Q3 2024: $154.09 (20K shares sold)
  • Q3 2023: $71.98 (48K shares sold)

TMDX price vs Simons's position

1Y 3Y 5Y MAX
Dates
$10$50$100$150$20020222023202420252026New position of 103K shares · Q3 2022. Average closing price $43.49 · Price range $31.56–$55.75103KsharespurchasedNew position of 63K shares · Q1 2023. Average closing price $69.15 · Price range $53.63–$82.3363KsharespurchasedAdded 10K shares (15.2%) · Q2 2023. Average closing price $76.55 · Price range $66.23–$88.7310KsharespurchasedSold 48K shares (65.2%) · Q3 2023. Average closing price $71.98 · Price range $53.47–$96.0748KsharessoldAdded 52K shares (445.3%) · Q1 2024. Average closing price $82.42 · Price range $70.86–$89.9352KsharespurchasedAdded 68K shares (106.7%) · Q2 2024. Average closing price $119.95 · Price range $72.62–$150.6268KsharespurchasedSold 20K shares (15.2%) · Q3 2024. Average closing price $154.09 · Price range $135.68–$176.1120KsharessoldNew position of 145K shares · Q3 2025. Average closing price $117.02 · Price range $103.29–$132.04145KsharespurchasedSold 135K shares (92.9%) · Q4 2025. Average closing price $125.54 · Price range $107.29–$150.42135Ksharessold
Average closing price · filing quarter
$125.54
Price range · filing quarter
$107.29 – $150.42
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Exited −10K −$1.3M −100.0% 0 May 14, 2026
Q4 2025 Reduced −135K −$17M −92.9% 10K Feb 12, 2026
Q3 2025 New +145K +$17M – 145K Nov 13, 2025
Q3 2024 Reduced −20K −$3.1M −15.2% 112K Nov 13, 2024
Q2 2024 Added +68K +$8.2M +106.7% 132K Aug 9, 2024
Q1 2024 Added +52K +$4.3M +445.3% 64K May 13, 2024
Q4 2023 First covered – – – 12K Feb 13, 2024
Q3 2023 Reduced −48K −$3.4M −65.2% 25K Nov 14, 2023
Q2 2023 Added +10K +$735K +15.2% 73K Aug 11, 2023
Q1 2023 New +63K +$4.4M – 63K May 12, 2023
Q3 2022 New +103K +$4.5M – 103K Nov 14, 2022
Data through Q1 2026 · filed May 14, 2026
11 grouped rows from 11 quarters

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Common questions

Does Jim Simons own TMDX?

Not currently. Jim Simons fully exited TMDX in Q1 2026, and the complete history is above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Jim Simons buy TMDX?

Jim Simons first disclosed a TMDX position in Q3 2022; every quarterly buy and sell since is in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Jim Simons sell TMDX?

Yes. Jim Simons reduced and then fully exited TMDX by Q1 2026; the reductions are in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of TMDX does Jim Simons own?

None as of the latest filing: Jim Simons has exited TMDX. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Jim Simons pay for TMDX?

Jim Simons's estimated average buy price for TMDX is $117.02, from quarter-average prices weighted by the shares added each quarter. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.