MarketPeel
Insider Trading Intelligence
GH

Gerardo Hernandez

TMDX
CHIEF FINANCIAL OFFICER · TRANSMEDICS GROUP, INC. · CIK 0002046180
FILING MIX · LIFETIME57%/43%
BUYS
8
SELLS
6
TOTAL VALUE
$1.76M
COMPANIES
1
ACTIVE SINCE
Dec 2024
HOLDINGS NOW
26,153
AVG SELL PX
$146.04
TRADE KIND
SHOWING 14 / 14
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
4 backtested trades · 8 horizons · 11 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Gerardo Hernandez, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d4+100.00%-10.39%-0.76%-9.63%-10.01%
14d4+100.00%-18.63%-2.65%-15.97%-16.26%
30d4+100.00%-26.70%-3.32%-23.39%-27.35%
60d4+100.00%-25.95%+4.05%-30.01%-38.01%
90d4+75.00%-39.19%+0.11%+6.41%+6.41%
180d4(3 pending)+100.00%-51.53%
1y4(4 pending)
2y4(4 pending)
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
TMDX · 26,153 shares · as of Jul 10, 2026
07,98415,96823,95131,93520252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2024
2025
2025
2025
2025
2026
2026
2026
FLOW · 8 buys / 6 sellsCOVERAGE · 8 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
TMDX
TRANSMEDICS GROUP, INC.
PURCHASEGRANT
Stock grant
26,15326,153Jul 10, 2026Jul 14, 2026View →
TMDX
TRANSMEDICS GROUP, INC.
PURCHASEGRANT
Stock grant
17,24631,935Jul 10, 2026Jul 14, 2026View →
TMDX
TRANSMEDICS GROUP, INC.
SALE
Chief Financial Officer
5,91213,010Mar 4, 2026Mar 4, 2026View →
TMDX
TRANSMEDICS GROUP, INC.
PURCHASE
Chief Financial Officer
5,912$69.84$412.9K20,601Mar 4, 2026Mar 4, 2026View →
TMDX
TRANSMEDICS GROUP, INC.
SALE
Chief Financial Officer
1,324$147.21$194.9K14,689Mar 4, 2026Mar 4, 2026View →
TMDX
TRANSMEDICS GROUP, INC.
SALE
Chief Financial Officer
1,3243,975Mar 4, 2026Mar 4, 2026View →
TMDX
TRANSMEDICS GROUP, INC.
SALE
Chief Financial Officer
5,912$147.21$870.3K14,689Mar 4, 2026Mar 4, 2026View →
TMDX
TRANSMEDICS GROUP, INC.
PURCHASE
Chief Financial Officer
1,324$77.12$102.1K16,013Mar 4, 2026Mar 4, 2026View →
TMDX
TRANSMEDICS GROUP, INC.
SALE
Chief Financial Officer
375$139.12$52.2K14,689Mar 2, 2026Mar 4, 2026View →
TMDX
TRANSMEDICS GROUP, INC.
SALE
Chief Financial Officer
920$139.62$128.5K15,064Dec 4, 2025Dec 5, 2025View →
TMDX
TRANSMEDICS GROUP, INC.
PURCHASEGRANT
Stock grant
5,2995,299Feb 24, 2025Feb 26, 2025View →
TMDX
TRANSMEDICS GROUP, INC.
PURCHASEGRANT
Stock grant
3,52115,984Feb 24, 2025Feb 26, 2025View →
TMDX
TRANSMEDICS GROUP, INC.
PURCHASEGRANT
Stock grant
18,92218,922Dec 9, 2024Dec 11, 2024View →
TMDX
TRANSMEDICS GROUP, INC.
PURCHASEGRANT
Stock grant
12,46312,463Dec 9, 2024Dec 11, 2024View →
Other insiders · TMDX
Loading peer insiders…
About this filer
CIK 0002046180
ROLE
Chief Financial Officer
PRIMARY
TMDX
COMPANIES
1
ACTIVE SINCE
Dec 2024
MARKETPEEL · /INSIDER/0002046180DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

One short email. Insider buys, congressional trades, and plain-English analysis.

Feedback