secwatch.observer — SEC 8-K summary
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Issuer:     Esperion Therapeutics, Inc. (ESPR)
CIK:        0001434868
Form:       8-K
Filed at:   2023-05-04T23:59:59+00:00
Accession:  0001628280-23-015503
Event type: litigation
Sentiment:  negative
Materiality: 0.80
Item codes: 8.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Esperion sues Daiichi Sankyo Europe over $300M milestone payment dispute
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- Filed amended complaint seeking declaration that DSE must pay $300M regulatory milestone upon cardiovascular risk reduction label.
- DSE informed Esperion on March 8, 2023 it would not make payment, citing MACE-4 result below 15%.
- Agreement requires payment for >20% risk reduction based on CLEAR Outcomes study; DSE's interpretation allegedly contradicts plain terms.
- Esperion claims DSE's repudiation caused 54% stock drop and is bad-faith attempt to renegotiate.
- Court in Southern District of New York; expedited declaratory judgment sought.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1434868/000162828023015503/0001628280-23-015503-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1434868/000162828023015503/espr-20230504.htm
  HTML page:      https://secwatch.observer/filing/0001628280-23-015503

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