Sutro Biopharma, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

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

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

v3.19.1

Cash Equivalents and Marketable Securities - Schedule of Cash Equivalents and Marketable Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	$ 195,443	$ 18,960
Unrealized Gains	0	0
Unrealized Losses	(47)	0
Fair Value	195,396	18,960
Less amounts classified as cash equivalents, Amortized Cost Basis	(125,298)	(22,020)	$ (11,593)
Marketable Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	79,241	0
Unrealized Gains	0	0
Unrealized Losses	(47)	0
Fair Value	79,194	0
Cash Equivalents
Cash And Cash Equivalents [Line Items]
Less amounts classified as cash equivalents, Amortized Cost Basis	(116,202)	(18,960)
Less amounts classified as cash equivalents, Fair Value	(116,202)	(18,960)
Money Market Funds
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	116,202	6,578
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	116,202	6,578
Commercial Paper
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	26,625	7,689
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	26,625	7,689
Corporate Debt Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	11,795	800
Unrealized Gains	0	0
Unrealized Losses	(21)	0
Fair Value	11,774	800
Asset-backed Securities
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	16,920
Unrealized Gains	0
Unrealized Losses	(21)
Fair Value	16,899
U.S. Government Agencies
Cash And Cash Equivalents [Line Items]
Amortized Cost Basis	23,901	3,893
Unrealized Gains	0	0
Unrealized Losses	(5)	0
Fair Value	$ 23,896	$ 3,893

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