Cabaletta Bio, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Common Stock - Summary of Stock Option Activity (Details)

v3.22.2.2

Common Stock - Summary of Stock Option Activity (Details) - Stock Options - 2019 Plan - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Number of Shares
Number of Shares, Beginning Balance	4,257,213
Number of Shares, Granted	2,053,000
Number of Shares, Exercised	(50,000)
Number of shares, Forfeited/Cancelled	(175,929)
Number of Shares, Ending Balance	6,084,284	4,257,213
Number of Shares, Options Exercisable	2,603,250
Weighted Average Exercise Price
Weighted Average Exercise Price, Beginning Balance	$ 8.49
Weighted Average Exercise Price, Granted	3.05
Weighted Average Exercise Price, Exercised	1.01
Weighted Average Exercise Price, Forfeited/Cancelled	6.48
Weighted Average Exercise Price, Ending Balance	6.77	$ 8.49
Weighted Average Exercise Price, Options Exercisable	$ 7.41
Weighted Average Remaining Contractual Term (years)
Term (years)	8 years 1 month 6 days	8 years 2 months 12 days
Weighted Average Remaining Contractual Term (years), Options Exercisable	7 years
Aggregate Intrinsic Value
Aggregate Intrinsic Value, Beginning Balance	$ 2,367
Aggregate Intrinsic Value, Exercised	101
Aggregate Intrinsic Value, Ending Balance	0	$ 2,367
Aggregate Intrinsic Value, Options Exercisable	$ 0

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