---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-369713"
form_type: "8-K"
ticker: "CALC"
cik: "0001534133"
company_name: "CalciMedica, Inc."
filed_at: "2026-08-27T13:07:12+00:00"
generated_at: "2026-08-27T13:08:07.577510+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# CalciMedica announces 1-for-5 reverse stock split, authorized shares cut to 100M

## Summary
- Reverse split effective 5:00 p.m. ET Aug 28, 2026; trading on split-adjusted basis Aug 31, 2026 under CALC.
- Authorized common shares reduced from 500M to 100M; par value unchanged at $0.0001.
- No fractional shares; cash payment in lieu; options, RSUs, warrants proportionately adjusted.
- New CUSIP 38942Q301; stockholder approval at Aug 19, 2026 annual meeting.

## SEC filing metadata
- accession: 0001193125-26-369713
- form_type: 8-K
- ticker: CALC
- cik: 0001534133
- company_name: CalciMedica, Inc.
- filed_at: 2026-08-27T13:07:12+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1534133/000119312526369713/0001193125-26-369713-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1534133/000119312526369713/d165361d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-369713
- JSON: https://secwatch.observer/filing/0001193125-26-369713.json
- Plain text: https://secwatch.observer/filing/0001193125-26-369713.txt

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