Document and Entity Information - USD ($)
$ in Millions

12 Months Ended

Dec. 31, 2023

Mar. 25, 2024

Jun. 30, 2023

Cover [Abstract]

Document Type

10-K

Document Annual Report

true

Document Period End Date

Dec. 31, 2023

Document Transition Report

false

Entity File Number

001-32979

Entity Registrant Name

MOLECULAR TEMPLATES, INC.

Entity Incorporation, State or Country Code

DE

Entity Address, Address Line One

9301 Amberglen Blvd, Suite 100

Entity Address, City or Town

Austin

Entity Address, State or Province

TX

Entity Tax Identification Number

94-3409596

Entity Address, Postal Zip Code

78729

City Area Code

512

Local Phone Number

869-1555

Title of 12(b) Security

Common Stock, $0.001 Par Value Per Share

Trading Symbol

MTEM

Security Exchange Name

NASDAQ

Entity Well-known Seasoned Issuer

No

Entity Voluntary Filers

No

Entity Current Reporting Status

Yes

Entity Interactive Data Current

Yes

Entity Filer Category

Non-accelerated Filer

Entity Small Business

true

Entity Emerging Growth Company

false

ICFR Auditor Attestation Flag

false

Document Financial Statement Error Correction Flag

false

Entity Shell Company

false

Entity Public Float

$ 18.0

Entity Common Stock, Shares Outstanding

5,374,268

Auditor Name

Ernst & Young LLP

Auditor Firm ID

42

Auditor Location

Austin, Texas

Documents Incorporated by Reference

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant’s definitive proxy statement for the registrant’s 2024 annual meeting of stockholders or an amendment to this Annual Report on Form 10-K to be filed pursuant to Regulation 14A within 120 days of the registrant’s fiscal year ended December 31, 2023 are incorporated herein by reference into Part III of this Annual Report on Form 10-K.

Entity Central Index Key

0001183765

Current Fiscal Year End Date

--12-31

Document Fiscal Year Focus

2023

Document Fiscal Period Focus

FY

Amendment Flag

false