Question 1

Does Citadel Advisors own TMDX stock?

Accepted Answer

Yes. As of its Q2 2026 13F, Citadel Advisors holds 558,824 shares of TMDX (Transmedics Group), worth $37.1M.

Question 2

How many shares of TMDX does Citadel Advisors own?

Accepted Answer

As of its Q2 2026 13F, Citadel Advisors holds 558,824 shares of TMDX (Transmedics Group).

Question 3

What is Citadel Advisors' TMDX position worth?

Accepted Answer

As of its Q2 2026 13F, Citadel Advisors' TMDX position is worth $37.1M.

Question 4

Is Citadel Advisors buying or selling TMDX?

Accepted Answer

In Q2 2026, Citadel Advisors increased its TMDX position from 61,601 to 558,824 shares.

Question 5

When did Citadel Advisors first buy TMDX?

Accepted Answer

Citadel Advisors already held TMDX in its Q2 2019 13F, the earliest on record, and has listed it in 25 quarterly 13F filings.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Increased	558,824	+807.2%	$37.1M	0.0%	$66.42	47
2026-Q1	Decreased	61,601	-57.0%	$6.1M	0.0%	$99.41	0
2025-Q4	Increased	143,247	+14.7%	$17.4M	0.0%	$121.65	32
2025-Q3	Decreased	124,917	-20.1%	$14M	0.0%	$112.20	0
2025-Q2	Decreased	156,441	-74.3%	$21M	0.0%	$134.01	0
2025-Q1	Increased	609,689	+161.7%	$41M	0.0%	$67.28	47
2024-Q4	New	232,934	-	$14.5M	0.0%	$62.35	39
2024-Q3	Exited	0	-100.0%	$0	0.0%	$157.00	0

TMDXShowing 8 of 29 quarters

TMDX
Showing 8 of 29 quarters