Stock-based Compensation (Tables)

6 Months Ended

Jun. 30, 2025

Share-Based Payment Arrangement [Abstract]

There were no options granted or exercised during the six months ended June 30, 2025. The following table summarizes stock options outstanding as of June 30, 2025:

Schedule of Stock Option Activity

	Number of Options			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value
Outstanding — January 1, 2025		34,046		$	30.55
Forfeited or expired		(188	)	$	2,350.64
Outstanding — June 30, 2025		33,858		$	17.67		6.23	$	34
Exercisable — June 30, 2025		28,567		$	20.08		6.01	$	21

Schedule of Stock-based Compensation Expenses

The following table presents total stock-based compensation expense for the three and six months ended June 30, 2025, and 2024:

	2025		2024		2025		2024
	Three Months Ended June 30,				Six Months Ended June 30,
	2025		2024		2025		2024
Research and development	$	-	$	29	$	-	$	145
General and administrative		6		74		14		156
Total stock-based compensation expense	$	6	$	103	$	14	$	301

Pulmatrix, Inc. 10-Q