> ＬＯＮＧＢＯＡＲＤ P H A R M A C E U T I C A L S Corporate Presentation September 2021 Forward-Looking Statements This presentation contains forward-looking statements about Longboard Pharmaceuticals, Inc. ("we," "Longboard" or the "Company"), including statements regarding: our future results of operations and financial position; business strategy; the timing, costs and conduct of our preclinical studies and clinical trials for our product candidates; the timing and likelihood of regulatory filings and approvals ...

> ＬＯＮＧＢＯＡＲＤ P H A R M A C E U T I C A L S Corporate Presentation September 2021 Forward-Looking Statements This presentation contains forward-looking statements about Longboard Pharmaceuticals, Inc. ("we," "Longboard" or the "Company"), including statements regarding: our future results of operations and financial position; business strategy; the timing, costs and conduct of our preclinical studies and clinical trials for our product candidates; the timing and likelihood of regulatory filings and approvals ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from __________ to ___________ Commission File Number: 001-40192 Longboard Pharmaceuticals, Inc. (Exact Name of Registrant as Specified in its Charter) | Delaware | ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from __________ to ___________ Commission File Number: 001-40192 Longboard Pharmaceuticals, Inc. (Exact Name of Registrant as Specified in its Charter) | Delaware ...