---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-26-019348"
form_type: "8-K"
ticker: "IGAC"
cik: "0002075068"
company_name: "Invest Green Acquisition Corp"
filed_at: "2026-02-23T23:59:59+00:00"
generated_at: "2026-05-16T01:18:05.219763+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Invest Green Acquisition Corp issues $3.5M promissory note to sponsor for working capital

## Summary
- Unsecured note of $3.5M issued to IG SPAC Sponsor LLC, effective Dec 1, 2025.
- Principal due at business combination; no interest accrues.
- Sponsor may convert outstanding amounts into units at $5.00 per unit.
- Converted units are identical to private placement units from Nov 2025 IPO.
- Sponsor waives any claim against the trust account from IPO proceeds.

## SEC filing metadata
- accession: 0001213900-26-019348
- form_type: 8-K
- ticker: IGAC
- cik: 0002075068
- company_name: Invest Green Acquisition Corp
- filed_at: 2026-02-23T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 1.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2075068/000121390026019348/0001213900-26-019348-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2075068/000121390026019348/ea0277998-8k_invest.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-26-019348
- JSON: https://secwatch.observer/filing/0001213900-26-019348.json
- Plain text: https://secwatch.observer/filing/0001213900-26-019348.txt

## Key facts
- Debt Financings
  Invest Green Acquisition Corp incurred loan of $3,500,000 with IG SPAC Sponsor LLC at The Note bears no interest maturing the date on which the Company consummates a business combination.
  - Instrument: loan
  - Principal: $3,500,000
  - Counterparty: IG SPAC Sponsor LLC
  - Rate: The Note bears no interest
  - Maturity: the date on which the Company consummates a business combination
  - Event: incurrence
  source text: On February 17, 2026, Invest Green Acquisition Corporation (the “Company”) issued an unsecured promissory note in the aggregate principal amount of $3,500,000 (the “Note”) to IG SPAC Sponsor LLC (“Sponsor”) that is effective as of December 1, 2025.
  evidence_url: https://www.sec.gov/Archives/edgar/data/2075068/000121390026019348/0001213900-26-019348-index.htm
- Material Agreements
  Invest Green Acquisition Corp entered into Unsecured Promissory Note with IG SPAC Sponsor LLC valued at $3,500,000 (effective 2025-12-01).
  - Action: entry
  - Agreement: notes offering
  - Counterparty: IG SPAC Sponsor LLC
  - Value: $3,500,000
  - Effective: 2025-12-01
  source text: On February 17, 2026, Invest Green Acquisition Corporation (the “Company”) issued an unsecured promissory note in the aggregate principal amount of $3,500,000 (the “Note”) to IG SPAC Sponsor LLC (“Sponsor”) that is effective as of December 1, 2025.
  evidence_url: https://www.sec.gov/Archives/edgar/data/2075068/000121390026019348/0001213900-26-019348-index.htm

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