Company: AIP
Filing Date: 2025-12-11
Form Type: S-3
Source: 0001193125-25-316098
Chunk: 46

Company: Arteris, Inc.
Filing Date: 2025-12-11
Form: S-3
Chunk 46
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-votingcommon stock held by non-affiliatesis less than $700.0 million measured on the last business day of our second fiscal quarter. As a result, the information in this prospectus supplement and that we provide to our investors in the future may be different than what you might receive from other public reporting companies.

S-4

THE OFFERING

| Common stock offered by us | Shares of our common stock having an aggregate offering price of up to $75,000,000. |

| Common stock to be outstanding after this offering | Up to 47,408,851 shares, assuming sales of 3,824,579 shares of our common stock in this offering at an offering price of $19.61 per share, which was the last reported sale price of our common stock on the Nasdaq Global Market on December 10, 
 2025. The actual number of shares issued will vary depending on the sales price under this offering.                                                                                                                                              |

| Plan of Distribution | “At the market offering” that may be made from time to time on the Nasdaq Global Market or such other national securities exchange on which our common stock is listed, through our sales agent, Jefferies LLC. See “Plan of 
 Distribution”.                                                                                                                                                                                                               |

| Use of Proceeds | We intend to use the net proceeds from this offering, if any, for general corporate purposes. See “Use of Proceeds”. |

| Risk Factors | You should read the “Risk Factors” section of this prospectus supplement and in the documents incorporated by reference in this prospectus supplement for a discussion of factors to consider before deciding to purchase shares of our 
 common stock.                                                                                                                                                                                                                           |

| Symbol on the Nasdaq Global Market | “AIP”. |

The number of shares of our common stock that will be outstanding after this offering as shown above is based on 43,584,272 shares of our common stock outstanding as of September 30, 2025, and excludes:

| • |     | 1,818,539 shares of common stock issuable upon exercise of stock options outstanding as of 
 September 30, 2025, having a weighted-average exercise price of $3.33 per share;           |

| • |     | 4,760,502 shares of common stock subject to the settlement of restricted stock units (RSUs) outstanding as 
 of September 30, 2025;                                                                                     |

| • |     | 218,496 shares of common stock subject to the settlement of RS