STOCK TITAN

Aura Biosciences grants Kratz 100,885 RSUs, options

Erica Kratz’s inducement RSUs and options now vest starting Sept. 15, 2027, leaving her with 100,885 shares and 199,115 options.

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Aura Biosciences, Inc. (AURA) reported that Chief Regulatory & Quality Officer Erica Kratz received equity awards on 2026-09-01. She was granted 100,885 restricted stock units as an inducement award, each representing one share of common stock, vesting in four substantially equal annual installments starting on September 15, 2027, subject to continued service. She also received a stock option for 199,115 shares of common stock at an exercise price of $7.43 per share, vesting 25% on August 10, 2027 with the remainder vesting pro rata in 36 monthly installments, and expiring on September 1, 2036. Following these awards, the filing reports holdings of 100,885 common shares and 199,115 stock options directly owned.

Positive

  • None.

Negative

  • None.
Insider Kratz Erica
Role Chief Reg. & Quality Officer
Type Security Shares Price Value
Grant/Award Stock Option (Right to Buy) F2 199,115 $0.00 $0.00
Grant/Award Common Stock F1 100,885 $0.00 $0.00
Holdings After Transaction: Stock Option (Right to Buy) — 199,115 contracts (Direct); Common Stock — 100,885 shares (Direct)
Footnotes (2)
  1. F1. These securities represent an inducement award granted pursuant to a restricted stock unit ("RSU") award agreement with the Issuer. Each RSU represents the right to receive one share of the Issuer's Common Stock. These RSUs vest in four substantially equal annual installments, subject to the Reporting Person's continued service as of the relevant vesting date, with the first tranche scheduled to vest on September 15, 2027.
  2. F2. The option shall vest as follows: 25% of the options vest on August 10, 2027 with the remainder vesting thereafter pro-rata in 36 monthly installments, subject to the Reporting Person's continued service as of each such vesting date.
RSUs granted 100,885 RSUs Inducement award to Chief Reg. & Quality Officer on 2026-09-01
Option shares granted 199,115 shares Stock Option (Right to Buy) granted on 2026-09-01
Option exercise price $7.43 per share Exercise price for 199,115-share option grant expiring 2036-09-01
Option expiration date September 1, 2036 Expiration of stock option granted to Erica Kratz
Common shares held after award 100,885 shares Direct common stock holdings following RSU grant
Options held after award 199,115 options Direct option holdings following option grant
restricted stock unit financial
"These securities represent an inducement award granted pursuant to a restricted stock unit"
A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.
inducement award financial
"These securities represent an inducement award granted pursuant to a restricted stock unit"
An inducement award is a special cash or equity payment given to a new hire—often an executive or key employee—outside the company’s regular pay plans to persuade them to join. Think of it like a signing bonus that can align the new person’s goals with shareholders but also represents a cost and can reduce existing owners’ percentage of the company, so investors watch these awards for their impact on ownership and future performance.
vesting financial
"These RSUs vest in four substantially equal annual installments"
Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.
Stock Option (Right to Buy) financial
"security_title: "Stock Option (Right to Buy)""

FAQ

What insider transactions did AURA report for Erica Kratz on this Form 4?

The company reported that Erica Kratz received a grant of 100,885 restricted stock units and a stock option for 199,115 shares of common stock at an exercise price of $7.43 per share on 2026-09-01.

How many Aura Biosciences (AURA) RSUs were granted to Erica Kratz?

She was granted 100,885 restricted stock units as an inducement award. Each RSU represents the right to receive one share of AURA common stock, vesting in four substantially equal annual installments starting on September 15, 2027, subject to continued service.

What are the terms of the stock options granted to Erica Kratz by AURA?

She received a stock option covering 199,115 shares of AURA common stock with an exercise price of $7.43 per share, expiring on September 1, 2036. 25% vest on August 10, 2027, with the remainder vesting pro rata in 36 monthly installments, subject to continued service.

When do Erica Kratz’s AURA RSUs start vesting?

The RSUs are scheduled to start vesting on September 15, 2027. They vest in four substantially equal annual installments, and each installment is subject to Ms. Kratz’s continued service with Aura Biosciences as of the relevant vesting date.

What are Erica Kratz’s reported AURA holdings after these transactions?

Following the reported awards, her direct holdings shown in the filing are 100,885 shares of AURA common stock and 199,115 stock options, each option exercisable for one share of common stock, subject to their respective vesting schedules.

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google
Add on Google
Learn about SEC filing dates
SEC Form 4
FORM 4UNITED 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
Estimated average burden
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*
Kratz Erica

(Last)(First)(Middle)
C/O AURA BIOSCIENCES, INC.
80 GUEST STREET

(Street)
BOSTON MASSACHUSETTS 02135

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Aura Biosciences, Inc. [ AURA ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Reg. & Quality Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
09/01/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Common Stock09/01/2026A100,885(1)A$0100,885D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (Right to Buy)$7.4309/01/2026A199,115 (2)09/01/2036Common Stock199,115$0199,115D
Explanation of Responses:
1. These securities represent an inducement award granted pursuant to a restricted stock unit ("RSU") award agreement with the Issuer. Each RSU represents the right to receive one share of the Issuer's Common Stock. These RSUs vest in four substantially equal annual installments, subject to the Reporting Person's continued service as of the relevant vesting date, with the first tranche scheduled to vest on September 15, 2027.
2. The option shall vest as follows: 25% of the options vest on August 10, 2027 with the remainder vesting thereafter pro-rata in 36 monthly installments, subject to the Reporting Person's continued service as of each such vesting date.
/s/ Amy Elazzouzi, as Attorney-in-Fact09/01/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)