Company: HCKT
Filing Date: 2025-12-05
Form Type: SC TO-I/A
Source: 0001193125-25-308703
Chunk: 1

Company: HACKETT GROUP, INC.
Filing Date: 2025-12-05
Form: SC TO-I/A
Chunk 1
---
 up to $40 million in value of shares of its common stock, $0.001 par value per share (the “Shares”), at a price not greater than $21.00 nor less than $18.30 per Share, to the seller in cash, less any applicable withholding taxes and without interest. Only those items amended or supplemented are reported in this Amendment No. 1. Except as specifically provided herein, the information contained in the Schedule TO remains unchanged. You should read this Amendment No. 1 together with the Schedule TO, the Offer to Purchase dated November 5, 2025 and the Letter of Transmittal.

| Item 11. | Additional Information. |

Item 11 of the Schedule TO is hereby amended and supplemented by adding the following information to the end thereof: On December 5, 2025, Hackett issued a press release announcing the preliminary results of the Offer, which expired at 12:00 midnight, New York City time, at the end of the day on December 4, 2025. A copy of such press release is filed herewith as Exhibit (a)(5)(D) and is incorporated herein by reference.

| Item 12. | Exhibits. |

Item 12 of the Schedule TO is hereby amended and supplemented by adding the following exhibit: (a)(5)(D) Press Release announcing the preliminary results of the tender offer.

| ITEM 12.   |     | EXHIBITS                                                                                  |
| (a)(1)(A)* |     | Offer to Purchase, dated November 5, 2025.                                                |
| (a)(1)(B)* |     | Letter of Transmittal (including IRS Form W-9).                                           |
| (a)(1)(C)* |     | Notice of Guaranteed Delivery.                                                            |
| (a)(1)(D)* |     | Letter to Brokers, Dealers, Banks, Trust Companies and Other Nominees.                    |
| (a)(1)(E)* |     | Letter to Clients for Use by Brokers, Dealers, Banks, Trust Companies and Other Nominees. |
| (a)(1)(F)* |     | Summary Advertisement, dated November 5, 2025.                                            |
| (a)(1)(G)* |     | Frequently Asked Questions for Employees, dated November 5, 2025.                         |
| (a)(2)     |     | Not applicable.                                                                           |
| (a)(3)     |