Question 1

Does Simplex Trading own MGNX stock?

Accepted Answer

Yes. As of its Q3 2026 13F, Simplex Trading holds 7,593 shares of MGNX (MacroGenics), worth $29,308.

Question 2

How many shares of MGNX does Simplex Trading own?

Accepted Answer

As of its Q3 2026 13F, Simplex Trading holds 7,593 shares of MGNX (MacroGenics).

Question 3

What is Simplex Trading's MGNX position worth?

Accepted Answer

As of its Q3 2026 13F, Simplex Trading's MGNX position is worth $29,308.

Question 4

Is Simplex Trading buying or selling MGNX?

Accepted Answer

In Q3 2026, Simplex Trading reduced its MGNX position by 31,228 shares (-80.4%).

Question 5

When did Simplex Trading first buy MGNX?

Accepted Answer

Simplex Trading already held MGNX in its Q1 2019 13F, the earliest on record, and has listed it in 27 quarterly 13F filings.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q3 Latest	Decreased	7,593	-80.4%	$29,308	0.0%	$3.86	0
2026-Q2	Increased	38,821	+714.9%	$179,353	0.0%	$4.62	37
2026-Q1	Decreased	4,764	-6.5%	$13,767	0.0%	$2.89	0
2025-Q4	Decreased	5,097	-28.4%	$8,206	0.0%	$1.61	0
2025-Q3	Increased	7,124	+42.2%	$11,000	0.0%	$1.68	16
2025-Q2	New	5,010	—	$6,000	0.0%	$1.21	24
2024-Q4	Exited	0	-100.0%	$0	0.0%	$3.25	0
2024-Q3	Increased	29,615	+3.3%	$97,000	0.0%	$3.29	22