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

Fair Value Measurements - Schedule of Debt Securities Classified as Available-for-Sale Investments (Details)

v3.24.2.u1

Fair Value Measurements - Schedule of Debt Securities Classified as Available-for-Sale Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	$ 203,254	$ 241,210
Gross Unrealized Gains	0	43
Gross Unrealized Losses	(29)	(4)
Fair value	203,225	241,249
Cash
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	637	743
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair value	637	743
Money Market Funds
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	177,976	180,124
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair value	177,976	180,124
U.S. Treasury Securities
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	24,641	47,976
Gross Unrealized Gains	0	39
Gross Unrealized Losses	(29)	(4)
Fair value	24,612	48,011
Money Market Funds Included in Cash and Cash Equivalents
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	178,613	193,234
Gross Unrealized Gains	0	4
Gross Unrealized Losses	0	0
Fair value	$ 178,613	193,238
U.S. Treasury securities Original Maturity Less Than Three Months
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost		12,367
Gross Unrealized Gains		4
Gross Unrealized Losses		0
Fair value		$ 12,371

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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