Question 1

How many shares of ALT does SIMPLEX TRADING, LLC own?

Accepted Answer

SIMPLEX TRADING, LLC previously held 0 shares of ALT (ALTIMMUNE INC) before exiting the position in 2026-Q2.

Question 2

What is SIMPLEX TRADING, LLC's ALT position worth?

Accepted Answer

SIMPLEX TRADING, LLC's ALT position was last reported at $0 in 2026-Q2 before the exit.

Question 3

Is SIMPLEX TRADING, LLC buying or selling ALT?

Accepted Answer

In 2026-Q2, SIMPLEX TRADING, LLC exited their ALT position entirely (-100.0% change in shares).

Question 4

When did SIMPLEX TRADING, LLC first buy ALT?

Accepted Answer

Based on available 13F filings, SIMPLEX TRADING, LLC first reported a position in ALT in 2024-Q3. They have held the position across 21 quarters.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Exited	0	-100.0%	$0	0.0%	$3.04	0
2026-Q1	New	22,841	—	$70,350	0.0%	$4.16	32
2025-Q4	Exited	0	-100.0%	$0	0.0%	$3.61	0
2025-Q3	Increased	213,709	+113.8%	$805,000	0.0%	$3.79	40
2025-Q2	Increased	99,967	+380.1%	$386,000	0.0%	$3.50	38
2025-Q1	Decreased	20,821	-88.5%	$104,000	0.0%	$5.32	0
2024-Q4	Increased	181,172	+36.0%	$1.3M	0.0%	$7.32	33
2024-Q3	Decreased	133,165	-19.8%	$817,000	0.0%	$6.47	0