Form 4: Plavsic Mark reports sale transactions in AURA

Rhea-AI Filing Summary

Plavsic Mark reported open-market sale transactions in a Form 4 filing for AURA. The filing lists transactions totaling 15,890 shares at a weighted average price of $5.05 per share. Following the reported transactions, holdings were 181,397 shares.

Insider Trade Summary

Net Seller: 15,890 shares ($80,245)

Net Sell 1 txn

Insider Plavsic Mark

Role Chief Technology Officer

Sold 15,890 shs ($80K)

Type	Security	Shares	Price	Value
Sale	Common Stock	15,890	$5.05	$80K

Holdings After Transaction: Common Stock — 181,397 shares (Direct)

Footnotes (1)

1. The sales reported on this Form 4 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. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.04 to $5.24, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Plavsic Mark

(Last) (First) (Middle)

C/O AURA BIOSCIENCES, INC.

80 GUEST STREET

(Street)

BOSTON MA 02135

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Aura Biosciences, Inc. [ AURA ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Technology Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/17/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/17/2026		S(1)		15,890	D	$5.05(2)	181,397	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The sales reported on this Form 4 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.

2. The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.04 to $5.24, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

	/s/ Conor Kilroy, as Attorney-in-Fact	02/17/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Aura Biosciences (AURA) report for Mark Plavsic?

Aura Biosciences reported that Chief Technology Officer Mark Plavsic sold 15,890 shares of common stock. The sale was an automatic transaction to cover tax withholding obligations arising from the vesting of restricted stock units, rather than a discretionary open-market sale decision by the executive.

At what price were the Aura Biosciences (AURA) shares sold by Mark Plavsic?

The shares were sold at a weighted average price of $5.05 per share. According to the filing, individual transactions occurred in a price range from $5.04 to $5.24 per share, all executed as part of the same tax-related sale process.

Why did Aura Biosciences (AURA) CTO Mark Plavsic sell shares in this Form 4 filing?

The sale was made to cover tax withholding obligations from the vesting of restricted stock units. The filing states these transactions were automatic and not at Mark Plavsic’s discretion, meaning they were triggered by tax requirements rather than a voluntary portfolio decision.

How many Aura Biosciences (AURA) shares does Mark Plavsic hold after the reported sale?

After the reported tax-related sale, Mark Plavsic directly owns 181,397 shares of Aura Biosciences common stock. This post-transaction holding reflects his remaining direct ownership position disclosed in the Form 4 following the 15,890-share sale.

What additional pricing detail did the Aura Biosciences (AURA) Form 4 disclose about the sale?

The Form 4 notes that the reported price is a weighted average for multiple trades. Shares were sold in separate transactions between $5.04 and $5.24, and the reporting person committed to provide full breakdown details upon request to investors or regulators.