Sutro Biopharma, 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

Cash Equivalents and Marketable Securities - Schedule of Cash Equivalents and Marketable Securities (Details)

v3.23.2

Cash Equivalents and Marketable Securities - Schedule of Cash Equivalents and Marketable Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	$ 357,790	$ 299,026
Unrealized Gains	21	10
Unrealized Losses	(5)	(626)
Fair Value	357,806	298,410
Less amounts classified as cash equivalents, Amortized Cost Basis	(235,095)	(47,254)	$ (79,115)
Marketable Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	123,185	255,708
Unrealized Gains	18	8
Unrealized Losses	(5)	(626)
Fair Value	123,198	255,090
Cash Equivalents
Cash And Cash Equivalents [Line Items]
Less amounts classified as cash equivalents, Amortized Cost Basis	(234,605)	(43,318)
Less amounts classified as cash equivalents, Unrealized Gains	(3)	(2)
Less amounts classified as cash equivalents, Fair Value	(234,608)	(43,320)
Money Market Funds
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	204,698	36,486
Fair Value	204,698	36,486
Commercial Paper
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	49,254	87,140
Fair Value	49,254	87,140
Corporate Debt Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	2,984	36,554
Unrealized Gains		2
Unrealized Losses		(127)
Fair Value	2,984	36,429
Asset-backed Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	1,591	14,026
Unrealized Losses		(10)
Fair Value	1,591	14,016
U.S. Government Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	84,425	91,619
Unrealized Gains	14	8
Unrealized Losses	(5)	(376)
Fair Value	84,434	91,251
U.S. Agency Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	14,838	16,646
Unrealized Gains	7
Unrealized Losses		(39)
Fair Value	$ 14,845	16,607
Supranational Debt Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis		16,555
Unrealized Losses		(74)
Fair Value		$ 16,481

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