---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-409049"
form_type: "8-K"
ticker: "CALC"
cik: "0001534133"
company_name: "CalciMedica, Inc."
filed_at: "2026-09-30T20:07:18+00:00"
generated_at: "2026-10-12T14:04:43.892966+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# CalciMedica files prospectus supplement for up to $25M at-the-market stock offering

## Summary
- Prospectus supplement covers sale of up to $25,000,000 of CalciMedica common stock under its at-the-market offering agreement with H.C. Wainwright & Co. dated August 11, 2023.
- The ATM sales sit under the company's shelf registration statement on Form S-3 (No. 333-293972), initially filed March 3, 2026 and declared effective March 11, 2026.
- Cooley LLP legal opinion (Exhibit 5.1) covers the legality of the $25,000,000 of shares issuable under the Offering Agreement.
- No pricing, share count, timing schedule, or use-of-proceeds detail was disclosed; shares may be sold from time to time at market prices.

## SEC filing metadata
- accession: 0001193125-26-409049
- form_type: 8-K
- ticker: CALC
- cik: 0001534133
- company_name: CalciMedica, Inc.
- filed_at: 2026-09-30T20:07:18+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1534133/000119312526409049/0001193125-26-409049-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1534133/000119312526409049/d39303d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-409049
- JSON: https://secwatch.observer/filing/0001193125-26-409049.json
- Plain text: https://secwatch.observer/filing/0001193125-26-409049.txt

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