---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-225041"
form_type: "8-K"
ticker: "SGHT"
cik: "0001531177"
company_name: "Sight Sciences, Inc."
filed_at: "2025-09-30T23:59:59+00:00"
generated_at: "2026-05-17T05:15:29.752431+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Sight Sciences extends interest-only period to Feb 2027, ups Tranche 3 to $25M

## Summary
- Interest-only period extended six months to February 1, 2027.
- Tranche 3 availability increased from $15M to $25M, drawable in $5M increments subject to Hercules' sole approval.
- Company paid $50,000 amendment fee plus expenses; total $65M facility unchanged.
- Performance Milestone II and Interest Only Extension Conditions removed from loan agreement.

## SEC filing metadata
- accession: 0001193125-25-225041
- form_type: 8-K
- ticker: SGHT
- cik: 0001531177
- company_name: Sight Sciences, Inc.
- filed_at: 2025-09-30T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1531177/000119312525225041/0001193125-25-225041-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1531177/000119312525225041/sght-20250930.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-225041
- JSON: https://secwatch.observer/filing/0001193125-25-225041.json
- Plain text: https://secwatch.observer/filing/0001193125-25-225041.txt

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