Company: BRSL
Filing Date: 2025-08-21
Form Type: 6-K
Source: 0001619762-25-000056
Chunk: 0

Company: Brightstar Lottery PLC
Filing Date: 2025-08-21
Form: 6-K
Chunk 0
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### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### WASHINGTON, D.C. 20549

#### FORM 6-K

### REPORT OF FOREIGN PRIVATE ISSUER

#### PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE

#### SECURITIES EXCHANGE ACT OF 1934

#### For the month of August 2025

#### Commission File Number 001-36906

### BRIGHTSTAR LOTTERY PLC
<div align='center'>(Translation of registrant’s name into English)</div>

#### 10 Finsbury Square, Third Floor

#### London, EC2A 1AF

#### United Kingdom
<div align='center'>(Address of principal executive offices)</div>

| Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F: |     |   |     |           |     |   |
| Form 20-F                                                                                                              |     | ☒ |     | Form 40-F |     | ☐ |

<div align='center'>Brightstar Lottery PLC Announces Repurchase of Ordinary Shares</div>

Brightstar Lottery PLC (NYSE: BRSL) (the “Company”) announced today that it has repurchased the following number of its ordinary shares pursuant to its accelerated share repurchase ("ASR") program, details of which were announced on July 29, 2025.

| Class of Shares (e.g., ordinary/preference, etc.) |     | Number of shares purchased |     | Nominal value of each share |     | Date that the shares were delivered to the Company |     | Maximum price paid for shares |     | Minimum price paid for shares |
| Ordinary                                          |     |                 13,573,035 |     |                       $0.10 |     | 8/6/2025                                           |     |                      $18.4189 |     |                      $18.4189 |

The Company made an upfront payment of $250 million for the initial delivery of 13,573,035 ordinary shares listed in the table above. These shares constitute a significant portion of the total number of ordinary shares deliverable to the Company under the $250 million ASR program. The total number of ordinary shares deliverable to the Company and the price paid for shares under the ASR program will ultimately depend on the average of the daily volume-weighted average prices of the ordinary shares during the term of the ASR