# EDGAR Filing Document

**Accession Number:** 0002040334
**File Stem:** 0001999371-26-013956
**Filing Date:** 2026-6
**Character Count:** 2765
**Document Hash:** d716042d09ed11c6131e7d9b1f77ebbf
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001999371-26-013956.hdr.sgml**: 20260630

**ACCESSION NUMBER**: 0001999371-26-013956

**CONFORMED SUBMISSION TYPE**: 24F-2NT

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260331

**FILED AS OF DATE**: 20260630

**DATE AS OF CHANGE**: 20260630

**EFFECTIVENESS DATE**: 20260630

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Advisors Disciplined Trust 2278
- **CENTRAL INDEX KEY:** 0002040334

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 24F-2NT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-284733
- **FILM NUMBER:** 261141543

**BUSINESS ADDRESS:**
- **STREET 1:** 18925 BASE CAMP ROAD STE 203
- **CITY:** MONUMENT
- **STATE:** CO
- **ZIP:** 80132
- **BUSINESS PHONE:** 7194889956

**MAIL ADDRESS:**
- **STREET 1:** 18925 BASE CAMP ROAD STE 203
- **CITY:** MONUMENT
- **STATE:** CO
- **ZIP:** 80132

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

## FORM 24F-2NT: Annual Notice of Securities Sold Pursuant to Rule 24f-2

### 24F-2NT: Filer Information

**Filer CIK:** 0002040334

**Is this a LIVE or TEST Filing?:** LIVE

**Filer Investment Company Type:** S-6

### 24F-2NT: Annual Filing Information

**1. Name and address of issuer:**

- **Name of Issuer:** Advisors Disciplined Trust 2278

- **Address:** 18925 Base Camp Road, Monument, CO 80132

**2. The Name and EDGAR Identifier of each series or class of securities for which this Form is filed:**

- [ ] Check box if the Form is being filed for all series and classes of the issuer.

**3. Investment Company Act File Number:** 811-21056

   **Securities Act File Number:** 333-284733

**4(a). Last day of fiscal year for which this Form is filed:** 03/31/2026

**4(b). Check box if this Form is being filed late:** [x]

**4(c). Check box if this is the last time the issuer will be filing this Form:** [ ]

**5. Calculation of registration fee:**

- **(i) Aggregate sale price of securities sold during the fiscal year:** $230309685.32

- **(ii) Aggregate price of securities redeemed or repurchased during the fiscal year:** $6371127.06

- **(iii) Aggregate price of securities redeemed or repurchased during any prior fiscal year:** $0.00

- **(iv) Total available redemption credits [add Items 5(ii) and 5(iii)]:** $6371127.06

- **(v) Net sales:** $223938558.26

- **(vi) Redemption credits available for use in future years:** $0.00

- **(vii) Multiplier for determining registration fee:** 0.000138100

- **(viii) Registration fee due:** $30925.91

**Explanatory Notes (if any):**
[X] Wire Transfer

**Signatures**

**Name and Title:** Alex R. Meitzner, Senior Vice President

**Date:** 06/30/2026

**Signature:** Alex R. Meitzner