AUR affiliates file Form 144 to sell large blocks

AUR affiliates reported proposed sales of Common Stock.

Rhea-AI Filing Summary

AUR affiliates reported proposed sales of Common Stock. The filing lists proposed dispositions dated 05/15/2026 by affiliated holders, including 4,948,637 shares ($38,639,947.42) and two separate holders of 274,925 shares each ($2,146,669.39 each). The transactions are presented on a Form 144 notice of proposed sale.

Insights

Securities Counsel

Form 144 shows proposed affiliate sales, a routine disclosure required for certain brokered dispositions.

The filing lists multiple affiliated holders and specific share counts dated 05/15/2026. Form 144 is a notice of intent to sell under resale rules and does not itself execute transactions.

Timing and cash‑flow treatment for the sales are not stated in the excerpt; subsequent transaction reports will show executed dispositions or cancellations.

Equity Markets Analyst

Large single-holder quantity could represent meaningful supply if sold into market.

The excerpt lists a proposed sale of 4,948,637 shares by one affiliate on 05/15/2026. Whether this creates market pressure depends on execution method and whether sales are block trades or brokered transactions.

Follow-on SEC filings will clarify execution details and actual proceeds; this notice alone does not indicate completed sales.

Key Figures

Proposed shares — primary holder: 4,948,637 shares Dollar amount — primary holder: $38,639,947.42 Proposed shares — affiliate 1: 274,925 shares +3 more

6 metrics

Proposed shares — primary holder 4,948,637 shares proposed disposition dated 05/15/2026

Dollar amount — primary holder $38,639,947.42 amount listed next to 4,948,637 shares

Proposed shares — affiliate 1 274,925 shares proposed disposition dated 05/15/2026

Dollar amount — affiliate 1 $2,146,669.39 amount listed next to 274,925 shares

Proposed shares — affiliate 2 274,925 shares proposed disposition dated 05/15/2026

Dollar amount — affiliate 2 $2,146,669.39 amount listed next to 274,925 shares

Key Terms

Form 144, Stock Swap, Selling Securityholder

3 terms

Form 144 regulatory

"Form 144 notice of proposed sale by affiliates"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Stock Swap financial

"Stock Swap noted with date 11/04/2021 in securities to be sold"

Selling Securityholder financial

"Lines listing GREYLOCK 15 LIMITED PARTNERSHIP as seller"

A selling securityholder is someone who owns shares or investments in a company and decides to sell them to others. This could be an original investor, a company insider, or someone who bought the shares earlier. Knowing who is selling helps investors understand if the sale might affect the company's stock price or indicate how insiders feel about the company's future.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does AUR's Form 144 filing mean?

A Form 144 is a notice of an intended sale; the filing lists proposed dispositions of common shares by affiliates on 05/15/2026. It does not confirm completion; subsequent SEC filings report actual sales and proceeds.

How many AUR shares are proposed for sale on 05/15/2026?

The excerpt shows proposed sales including 4,948,637 shares by one affiliate and two affiliates of 274,925 shares each. These amounts appear on the Form 144 notice dated 05/15/2026.

What dollar amounts are tied to the proposed sales in the filing?

The filing ties $38,639,947.42 to the 4,948,637 share line and $2,146,669.39 to each 274,925 share line. These figures appear next to the listed share counts.

Does the Form 144 mean AUR will receive proceeds?

No direct proceeds recipient is stated in the excerpt. The Form 144 lists sales by affiliated holders; it does not specify whether proceeds go to the issuer or selling holders.

When will we know if the proposed sales occurred?

Actual completion is reported in subsequent SEC filings that disclose executed transactions. The Form 144 itself is a notice and does not confirm execution or settlement.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/18/2026 - 04:34 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001687183
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	AURORA INNOVATION, INC.
SEC File Number	001-40216
Address of Issuer	1654 Smallman St, Pittsburgh PENNSYLVANIA 15222
Phone	(888)-583-9506
Name of Person for Whose Account the Securities are To Be Sold	GREYLOCK 15 LIMITED PARTNERSHIP
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	312882	2348241.99	1653863906	05/18/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	11/04/2021	Merger/Acquisition	Issuer			312882	11/04/2021	Stock Swap

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
GREYLOCK 15 LIMITED PARTNERSHIP 1654 Smallman St, Pittsburgh PA 15222	Common	05/15/2026	4948637	38639947.42
GREYLOCK 15 PRINCIPALS LP 1654 Smallman St, Pittsburgh PA 15222	Common	05/15/2026	274925	2146669.39
GREYLOCK 15-A LIMITED PARTNERSHIP 1654 Smallman St, Pittsburgh PA 15222	Common	05/15/2026	274925	2146669.39

144: Remarks and Signature

Remarks
Date of Notice	05/18/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Adam J Amero
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)