# EDGAR Filing Document

**Accession Number:** 0000710124
**File Stem:** 0001193125-26-216355
**Filing Date:** 2026-5
**Character Count:** 3549
**Document Hash:** 2bfcf888fcadff2ef9a7b6e5dc12230e
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-216355.hdr.sgml**: 20260511

**ACCESSION NUMBER**: 0001193125-26-216355

**CONFORMED SUBMISSION TYPE**: 497J

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260511

**DATE AS OF CHANGE**: 20260511

**EFFECTIVENESS DATE**: 20260511

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** NORTHERN INSTITUTIONAL FUNDS
- **CENTRAL INDEX KEY:** 0000710124

**ORGANIZATION NAME:**
- **EIN:** 363209613
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1130

**FILING VALUES:**
- **FORM TYPE:** 497J
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-80543
- **FILM NUMBER:** 26962165

**BUSINESS ADDRESS:**
- **STREET 1:** NORTHERN INSTITUTIONAL FUNDS
- **STREET 2:** 50 SOUTH LASALLE STREET
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60603
- **BUSINESS PHONE:** 800-637-1380

**MAIL ADDRESS:**
- **STREET 1:** NORTHERN INSTITUTIONAL FUNDS
- **STREET 2:** 50 SOUTH LASALLE STREET
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60603

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BENCHMARK FUNDS
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BENCHMARK MONEY MARKET FUND DIVERSIFIED ASSETS & GOVERNMENT
- **DATE OF NAME CHANGE:** 19910422

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BENCHMARK MONEY MARKET FUND
- **DATE OF NAME CHANGE:** 19851020

## Series and Classes Contracts Data

### U.S. GOVERNMENT SELECT PORTFOLIO (Series ID: S000001275)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000275691 | Admin Shares |  |

### TREASURY PORTFOLIO (Series ID: S000023949)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000275692 | Admin Shares |  |

### Treasury Instruments Portfolio (Series ID: S000058876)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000275693 | Admin Shares |  |

---

| | |
|:---|:---|
| ![LOGO](g118318g87t05.jpg) | 100 Park Avenue<br>Suite 2000<br>New York, NY 10017<br>T: 212.812.4124 |

---

Jamie M. Gershkow

Partner

jgershkow@stradley.com

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;212.404.0654 May 11, 2026

**<u>VIA EDGAR TRANSMISSION</u>** 

U.S. Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549

Re: Northern Institutional Funds (the "Trust")

Post-Effective Amendment No. 115 (File No. 2-80543)

<u>Amendment No. 149 (File No. 811-03605)</u>

Ladies and Gentlemen:

In accordance with Rule 497(j) of Regulation C under the Securities Act of 1933, as amended, Northern Institutional Funds (the "Trust") certifies that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a. the forms of the Trust's (i) Treasury Portfolio, Treasury Instruments Portfolio and U.S. Government Select
Portfolio – Admin Shares Prospectus and (ii) Treasury Portfolio, Treasury Instruments Portfolio and U.S. Government Select Portfolio – Admin Shares Statement of Additional Information that would have been filed under paragraph
(c) of Rule 497 would not have differed from those contained in Post-Effective Amendment No. 115 to the Trust's registration statement on Form N-1A; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b. the text of Post-Effective Amendment No. 115 to the Trust's registration statement was filed with the
Commission via EDGAR on May 5 2026 (Accession No. 0001193125-26-206200) with an effective date of May 5, 2026.

Please direct any comments to the undersigned at (212) 404-0654.

Very truly yours,

<u>/s/ Jamie M. Gershkow</u>

Jamie M. Gershkow

cc: Kevin P. O'Rourke

Jose J. Del Real, Esq.