# EDGAR Filing Document

**Accession Number:** 0001941869
**File Stem:** 0001528621-23-000494
**Filing Date:** 2023-3
**Character Count:** 1457
**Document Hash:** 72820c776a32ce60f31a06cb408a68c7
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001528621-23-000494.hdr.sgml**: 20230329

**ACCESSION NUMBER**: 0001528621-23-000494

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230329

**DATE AS OF CHANGE**: 20230328

**EFFECTIVENESS DATE**: 20230329

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Invesco Unit Trusts Series 2277
- **CENTRAL INDEX KEY:** 0001941869
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** NY

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-269322
- **FILM NUMBER:** 23771211

**BUSINESS ADDRESS:**
- **STREET 1:** 225 LIBERTY STREET
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10281
- **BUSINESS PHONE:** 2126524344

**MAIL ADDRESS:**
- **STREET 1:** 225 LIBERTY STREET
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10281

NO SERIES-AND-CLASSES-CONTRACTS-DATA BLOCK FOUND

Filed Pursuant to Rule 497(d)

**INVESCO UNIT TRUSTS, SERIES 2277**

The Dow Jones Total Market Portfolio, Enhanced Index Strategy 2023-2

(the "Portfolio")

**Supplement to the Prospectus**

Effective March 28, 2023, pursuant to authority granted under the Trust Agreement, the Sponsor and the Supervisor have determined to liquidate Signature Bank from your Portfolio and such securities will no longer be included therein. The proceeds from the liquidation will be distributed to the Unitholders on the next distribution date.

Supplement Dated: March 28, 2023