Aurora Innovation (NASDAQ: AUR) insiders report large secondary sales

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC submitted Form 144 notices relating to proposed sales of Common stock tied to holders associated with Greylock entities. The excerpt lists recent transactions dated 05/15/2026, including sales of 274,925 shares (reported value $2,146,669.39) and 4,948,637 shares (reported value $38,639,947.42), as well as prior issuer activity dated 11/04/2021 described as a Stock Swap.

The filing records the broker/dealer name as Morgan Stanley Smith Barney LLC Executive Financial Services and shows the marketplace as NASDAQ. The notices document proposed resale activity by affiliated holders rather than new primary issuance.

Insights

Securities Compliance Analyst

Form 144 notices document proposed resale by affiliated holders, with large share blocks reported on 05/15/2026.

The excerpt shows broker information (Morgan Stanley Smith Barney LLC Executive Financial Services) and lists transactions by Greylock entities: 274,925 shares at $2,146,669.39 and 4,948,637 shares at $38,639,947.42. These entries are filing disclosures of intended sales under resale rules.

Timing and exact execution details are not in the excerpt; subsequent transaction reports or market filings would show whether these proposed sales were executed and under what methods.

Market Structure Specialist

Large per-holder resale notices can create short-term supply visibility but do not by themselves indicate execution.

The filing lists multiple legacy and recent entries, including a Stock Swap dated 11/04/2021 and resale activity on 05/15/2026. The largest reported block is 4,948,637 shares with an associated value of $38,639,947.42.

Cash‑flow treatment and distribution methods are not shown here; market impact depends on whether sales occur as block trades, at‑the‑market programs, or negotiated transactions.

Key Figures

Filing type: Form 144 notice Reported sale — holder 1: 274,925 shares Reported value — holder 1: $2,146,669.39 +3 more

6 metrics

Filing type Form 144 notice Notice of proposed resale by affiliates

Reported sale — holder 1 274,925 shares Sale dated <date>05/15/2026</date>

Reported value — holder 1 <money>$2,146,669.39</money> Associated with 274,925 shares on <date>05/15/2026</date>

Reported sale — holder 2 4,948,637 shares Sale dated <date>05/15/2026</date>

Reported value — holder 2 <money>$38,639,947.42</money> Associated with 4,948,637 shares on <date>05/15/2026</date>

Prior transaction type Stock Swap Dated <date>11/04/2021</date>

Key Terms

Form 144, Stock Swap, Securities To Be Sold

3 terms

Form 144 regulatory

"144: Securities Sold During The Past 3 Months"

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 market

"11/04/2021 | Merger/Acquisition | Issuer | Stock Swap"

Securities To Be Sold regulatory

"144: Securities To Be Sold | Common | 11/04/2021"

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	17382	130455.39	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			17382	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-A LIMITED PARTNERSHIP 1654 Smallman St, Pittsburgh PA 15222	Common	05/15/2026	274925	2146669.39
GREYLOCK 15 PRINCIPALS LP 1654 Smallman St, Pittsburgh PA 15222	Common	05/15/2026	274925	2146669.39
GREYLOCK 15 LIMITED PARTNERSHIP 1654 Smallman St, Pittsburgh PA 15222	Common	05/15/2026	4948637	38639947.42

144: Remarks and Signature

Remarks

Date of Notice

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the AUR Form 144 excerpt show about recent sales?

It lists proposed resale activity by affiliated holders, including 274,925 shares (value $2,146,669.39) and 4,948,637 shares (value $38,639,947.42), both dated 05/15/2026.

Who is the broker/dealer listed in the filing for AUR transactions?

The filing lists Morgan Stanley Smith Barney LLC Executive Financial Services as the broker/dealer handling the notices, with an address at 1 New York Plaza, 8th Floor, New York, NY.

Does the excerpt indicate these are primary offerings for AUR?

No. The excerpt records resale activity by holders (Greylock entities) and a prior Stock Swap dated 11/04/2021, indicating secondary resale rather than new primary issuance.

Are execution details or sale methods provided in the AUR excerpt?

Execution methods and timing are not provided in the excerpt; it only records proposed sales and recent prior transfers. Further filings would be needed to confirm execution and distribution method.