Aura Biosciences insider reports sale of 12,079 shares

Aura Biosciences submitted a Form 144 notice reporting an insider sale of 12,079 shares of Common Stock on 02/17/2026.

Rhea-AI Filing Summary

Aura Biosciences submitted a Form 144 notice reporting an insider sale of 12,079 shares of Common Stock on 02/17/2026. The filing also shows a 24,000 restricted stock unit award granted on 04/02/2024 and lists 64,150,468 shares outstanding as of 04/16/2026.

Key Figures

Form type: Form 144 Shares sold (reported): 12,079 shares Sale proceeds (line item): $61,037.31 +2 more

5 metrics

Form type Form 144 insider resale notice

Shares sold (reported) 12,079 shares sale on 02/17/2026 by Conor Kilroy

Sale proceeds (line item) $61,037.31 numeric value adjacent to the 12,079-sale line

Restricted Stock Units granted 24,000 units grant dated 04/02/2024 under 2021 Stock Option and Incentive Plan

Shares outstanding 64,150,468 shares listed with date 04/16/2026

Key Terms

Restricted Stock unit award, Form 144, Morgan Stanley Smith Barney LLC

3 terms

Restricted Stock unit award financial

"Restricted Stock unit award granted pursuant to the Issuer's 2021 Stock Option and Incentive Plan"

A restricted stock unit award is a promise by a company to give an employee a specified number of company shares at a future date if certain conditions are met, such as staying with the company or hitting performance goals. For investors, these awards matter because they can increase the total number of shares outstanding when converted, diluting existing holders, and they align employees’ incentives with shareholders’ interests much like giving a rising bonus that becomes real only after conditions are satisfied.

Form 144 regulatory

"CONTENT METADATA: form_type: "144""

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.

Morgan Stanley Smith Barney LLC other

"Common Stock | Morgan Stanley Smith Barney LLC Drive 200 West Civic Center"

FAQ

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

What did AURA disclose in the Form 144?

The filing reports an insider sale of 12,079 shares on 02/17/2026. It also records a 24,000 restricted stock unit award granted 04/02/2024 and shows 64,150,468 shares outstanding as of 04/16/2026.

Who executed the sale reported in AURA's Form 144?

The sale was reported in the filing under the name Conor Kilroy. The record lists the sale date as 02/17/2026 and a numeric amount of 12,079 shares associated with that line in the excerpt.

How many restricted stock units does AURA show in the excerpt?

The excerpt shows a Restricted Stock Unit award of 24,000 units. The award is dated 04/02/2024 and is described as subject to vesting requirements under the company plan.

What broker is listed for the transaction in the filing?

Brokerage listed: Morgan Stanley Smith Barney LLC. The filing includes an address line for that broker and associates the Common Stock transaction with Nasdaq trading.

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

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Accepted by SEC EDGAR 04/16/2026 - 06:50 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	0001808510
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	Aura Biosciences, Inc.
SEC File Number	001-40971
Address of Issuer	80 Guest Street Boston MASSACHUSETTS 02135
Phone	617-500-8864
Name of Person for Whose Account the Securities are To Be Sold	Kilroy Conor
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	Officer

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 Stock	Morgan Stanley Smith Barney LLC Drive 200 West Civic Center 4th Floor Sandy UT 84070	11738	82402.22	64150468	04/16/2026	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 Stock	04/02/2024	Restricted Stock unit award granted pursuant to the Issuer's 2021 Stock Option and Incentive Plan, subject to vesting requirements.	Aura Biosciences, Inc.			24000	04/02/2024	N/A

* 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
Conor Kilroy 80 Guest Street Boston MA 02135	Common Stock	02/17/2026	12079	61037.31

144: Remarks and Signature

Remarks	The sales reported on this Form 144 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.
Date of Notice	04/16/2026
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/ Amy Elazzouzi, as Attorney-in-Fact
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)