---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-015420"
form_type: "8-K"
ticker: "AIV"
cik: "0000922864"
company_name: "APARTMENT INVESTMENT & MANAGEMENT CO"
filed_at: "2023-04-28T23:59:59+00:00"
generated_at: "2026-06-16T07:33:22.457368+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# Aimco adopts bylaw amendments, sets special meeting threshold at 15%, annual meeting Sept 29

## Summary
- Board approved amendments effective after 2023 annual meeting: special meeting threshold lowered to 15% of voting power.
- Stockholders may change board size by majority vote (minimum 3 directors); company opts out of MUTA provisions without shareholder approval.
- 2023 annual meeting scheduled for Sept 29, 2023; proxy access nomination window May 15–June 14, 2023.
- Director Bob Miller retired; board reduced from 10 to 9 directors; no disagreement cited.
- Stockholder proposals for proxy must be received by June 14, 2023.

## SEC filing metadata
- accession: 0000950170-23-015420
- form_type: 8-K
- ticker: AIV
- cik: 0000922864
- company_name: APARTMENT INVESTMENT & MANAGEMENT CO
- filed_at: 2023-04-28T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.03, 5.08, 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/922864/000095017023015420/0000950170-23-015420-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/922864/000095017023015420/aiv-20230426.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-015420
- JSON: https://secwatch.observer/filing/0000950170-23-015420.json
- Plain text: https://secwatch.observer/filing/0000950170-23-015420.txt

## Key facts
- Executive change
  Bob Miller retired as Director at APARTMENT INVESTMENT & MANAGEMENT CO.
  - Action: retired
  - Role: Director
  source text: After the actions above, Bob Miller retired from the Board.
  evidence_url: https://www.sec.gov/Archives/edgar/data/922864/000095017023015420/0000950170-23-015420-index.htm

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