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)

v3.22.1

Cash Equivalents and Marketable Securities - Schedule of Cash Equivalents and Marketable Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	$ 192,708	$ 228,883
Unrealized (Losses)	(1,152)	(314)
Fair Value	191,556	228,569
Less amounts classified as cash equivalents, Amortized Cost Basis	(28,901)	(30,414)	$ (55,818)
Marketable Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	164,350	199,432
Unrealized (Losses)	(1,152)	(314)
Fair Value	163,198	199,118
Cash Equivalents
Cash And Cash Equivalents [Line Items]
Less amounts classified as cash equivalents, Amortized Cost Basis	(28,358)	(29,451)
Less amounts classified as cash equivalents, Fair Value	(28,358)	(29,451)
Money Market Funds
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	28,358	29,451
Fair Value	28,358	29,451
Commercial Paper
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	25,179	22,580
Fair Value	25,179	22,580
Corporate Debt Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	49,976	75,012
Unrealized (Losses)	(465)	(151)
Fair Value	49,511	74,861
Asset-backed Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	20,446	32,975
Unrealized (Losses)	(48)	(18)
Fair Value	20,398	32,957
U.S. Government Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	47,476	47,504
Unrealized (Losses)	(445)	(84)
Fair Value	47,031	47,420
Supranational Debt Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	21,273	21,361
Unrealized (Losses)	(194)	(61)
Fair Value	$ 21,079	$ 21,300

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