---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-041092"
form_type: "8-K"
ticker: "CALC"
cik: "0001534133"
company_name: "CalciMedica, Inc."
filed_at: "2023-02-16T23:59:59+00:00"
generated_at: "2026-06-19T09:20:19.463692+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Graybug Vision enters $2M bridge loan with CalciMedica and amends merger terms

## Summary
- Graybug agrees to lend CalciMedica up to $2M at 7.5% annual interest; initial $500K advanced.
- Amendment ensures outstanding loan principal and interest included in Graybug's net cash for merger closing.
- CalciMedica must use proceeds for payroll, rent, clinical trial, and regulatory costs; additional draws require Graybug approval.
- Merger termination triggers mandatory prepayment or credit against termination fees; three-month maturity after anniversary.

## SEC filing metadata
- accession: 0001193125-23-041092
- form_type: 8-K
- ticker: CALC
- cik: 0001534133
- company_name: CalciMedica, Inc.
- filed_at: 2023-02-16T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1534133/000119312523041092/0001193125-23-041092-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1534133/000119312523041092/d461698d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-041092
- JSON: https://secwatch.observer/filing/0001193125-23-041092.json
- Plain text: https://secwatch.observer/filing/0001193125-23-041092.txt

## Key facts
- Material Agreements
  CalciMedica, Inc. entered into Note Purchase Agreement with Graybug Vision, Inc. valued at $2.0 million (effective 2023-02-10).
  - Action: entry
  - Agreement: notes offering
  - Counterparty: Graybug Vision, Inc.
  - Value: $2.0 million
  - Effective: 2023-02-10
  source text: On February 10, 2023, Graybug Vision, Inc. (“Graybug”) and CalciMedica, Inc. (“CalciMedica”) entered into a note purchase agreement (the “Note Purchase Agreement”) providing for Graybug to make short-term loans (the “Loan” or “Loans”) to CalciMedica up to an aggregate principal amount of $2.0 million
  evidence_url: https://www.sec.gov/Archives/edgar/data/1534133/000119312523041092/0001193125-23-041092-index.htm
- Material Agreements
  CalciMedica, Inc. amended First Amendment with Graybug, CalciMedica and Camaro Merger Sub, Inc. (effective 2023-02-10).
  - Action: amendment
  - Agreement: merger
  - Counterparty: Graybug, CalciMedica and Camaro Merger Sub, Inc.
  - Effective: 2023-02-10
  source text: In connection with the Note Purchase Agreement, on February 10, 2023, Graybug, CalciMedica and Camaro Merger Sub, Inc. (“Camaro Merger Sub”) entered into a First Amendment (the “Amendment”) to the Agreement and Plan of Merger and Reorganization (the “Merger Agreement”)
  evidence_url: https://www.sec.gov/Archives/edgar/data/1534133/000119312523041092/0001193125-23-041092-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.