Company: ASGN
Filing Date: 2025-06-17
Form Type: S-8
Source: 0000890564-25-000033
Chunk: 10

Company: ASGN Inc
Filing Date: 2025-06-17
Form: S-8
Chunk 10
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 LLP (included in Exhibit 5.1)                                                                                                                                                                         |
| 24.1*   |     | Power of Attorney (incorporated by reference to the signature page hereto)                                                                                                                                                        |
| 99.1    |     | ASGN Incorporated Second Amended and Restated 2010 Incentive Award Plan, dated as of August 8, 2019 (incorporated by reference from Exhibit 10.1 to our Quarterly Report on Form 10-Q filed with the SEC on November 8, 2019)     |
| 99.2*   |     | First Amendment to the ASGN Incorporated Second Amended and Restated 2010 Incentive Award Plan                                                                                                                                    |
| 99.3    |     | ASGN Incorporated Second Amended and Restated 2010 Employee Stock Purchase Plan, dated as of March 18, 2020 (incorporated by reference from Exhibit 10.1 to our Quarterly Report on Form 10-Q filed with the SEC on May 11, 2020) |
| 99.4*   |     | First Amendment to the ASGN Incorporated Second Amended and Restated 2010 Employee Stock Purchase Plan                                                                                                                            |
| 107*    |     | Filing Fee Exhibit                                                                                                                                                                                                                |

#### ________________________________

| *   |     | Filed herewith.                                                                                |
| (P) |     | This exhibit originally filed in paper format. Accordingly, a hyperlink has not been provided. |

## Item 9. Undertakings
| (a) |     | The undersigned Registrant hereby undertakes: |

(1) To file, during any period in which offers or sales are being made, a post-effective amendment to this Registration Statement:

(i) To include any prospectus required by Section 10(a)(3) of the Securities Act of 1933, as amended (the “Securities Act”);

(ii) To reflect in the prospectus any facts or events arising after the effective date of the Registration Statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the Registration Statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule