Gunderson Thomas James

Insider

Director

Trades at: TMDX· MMSI

30D 90D 1Y

Net shares · 90d

-9.6K

0 buy · 9.6K sell

Net value · 90d

-$722.4K

$0 in · $722.4K out

Sentiment · 90d

Net selling

0% buying · 100% selling

Open-market trades · 90d

0 buy · 9.6K sell

Trading track record · all companies

Running net of open-market buys − sells across every company. Tap the line or a marker for details. ▲ buy · ▼ sell.

Transactions · 90d

Open-market Buys Sells All types

TMDX Exercise·M
Jun 15, 26

Director

$0

19.3K sh

Own New
TMDX Sell·S
Jun 15, 26

Director

$722.4K

9.6K sh · $75.06

Own -37%
TMDX Exercise·M
Jun 15, 26

Director

$42.6K

19.3K sh · $2.21

Own +276%
MMSI Exercise·M
May 20, 26

Director

$0

21.2K sh · 2 lots

Own New
MMSI Exercise·M
May 20, 26

Director

$1.1M

21.2K sh · $52.17 avg · 2 lots

Own +54%
TMDX Grant·A
May 20, 26

Director

$0

2.9K sh

Own +72%
MMSI Grant·A
May 18, 26

Director

$0

3.5K sh

Own +10%

Date▾	Ticker	Role	Type	Shares	Own Δ	Price	Value
Jun 15, 2026	TMDX	Director	Exercise M	19.3K	New	—	$0
Jun 15, 2026	TMDX	Director	Sell S	9.6K	-37%	$75.06	$722.4K
Jun 15, 2026	TMDX	Director	Exercise M	19.3K	+276%	$2.21	$42.6K
May 20, 2026	MMSI	Director	Exercise M	21.2K2 lots	New	—	$0
May 20, 2026	MMSI	Director	Exercise M	21.2K2 lots	+54%	$52.17 avg	$1.1M
May 20, 2026	TMDX	Director	Grant A	2.9K	+72%	—	$0
May 18, 2026	MMSI	Director	Grant A	3.5K	+10%	—	$0

Buy Sell Non-market (grant · exercise · gift)

About Gunderson Thomas James

This profile aggregates every SEC Form 4 insider transaction reported by Gunderson Thomas James across all companies they trade. Open-market purchases (code P) and sales (code S) are the highest-signal, discretionary trades; grants (A), option exercises (M) and gifts (G) reflect compensation rather than conviction and carry no market price. Figures cover the selected period and update as new filings are ingested.