Stock-based compensation expense charged to operations is summarized as follows:


	Three Months Ended March 31,
		2026		2025
Research and development		$	7,496	$	973
General and administrative		8,090		1,338
Total costs charged to operations		$	15,586	$	2,311

During the three months ended March 31, 2026, approximately 550,000 shares were granted to acquire shares of the Company's common stock, consisting of restricted stock units, with a grant date fair value of approximately $36,000 under its stock-based compensation plan.

Unrecognized compensation expense and expected weighted-average period to be recognized related to the stock-based compensation awards as of March 31, 2026 were as follows:


	Restricted Stock		Stock Options		Totals
Unrecognized stock-based compensation cost	$	118,291	$	13,757	$	132,048
Weighted-average period over which cost is expected to be recognized (in years)	3.44		3.32		3.42