KRRO holder Ram Aiyar plans 5,802-share stock sale

KRRO shareholder Ram Aiyar filed a notice of proposed sale of 5,802 common shares through Fidelity Brokerage Services LLC, with an aggregate market value of $662,917.47, expected around August 4, 2026 on NASDAQ.

Rhea-AI Filing Summary

KRRO shareholder Ram Aiyar filed a notice of proposed sale of 5,802 common shares through Fidelity Brokerage Services LLC, with an aggregate market value of $662,917.47, expected around August 4, 2026 on NASDAQ. The shares are scheduled to come from restricted stock vesting granted as compensation by the issuer on August 3, 2026. KRRO reports 14,422,571 common shares outstanding. In the prior three months, Aiyar sold 15,152 common shares on May 29, 2026 for gross proceeds of $196,675.99.

Key Figures

Planned shares to be sold: 5,802 shares Aggregate market value of planned sale: $662,917.47 Shares outstanding: 14,422,571 shares +4 more

7 metrics

Planned shares to be sold 5,802 shares Common stock proposed for sale around August 4, 2026

Aggregate market value of planned sale $662,917.47 Estimated value of 5,802 shares to be sold

Shares outstanding 14,422,571 shares KRRO common shares outstanding as stated in the filing

Recent shares sold 15,152 shares KRRO common shares sold on May 29, 2026

Gross proceeds from recent sale $196,675.99 Proceeds from 15,152 shares sold on May 29, 2026

Restricted stock vesting date August 3, 2026 Date of restricted stock vesting providing 5,802 shares

Approximate sale date August 4, 2026 Expected date of proposed sale on NASDAQ

Key Terms

Form 144, Restricted Stock Vesting, aggregate market value, gross proceeds

4 terms

Form 144 regulatory

"144: Securities Information"

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.

Restricted Stock Vesting financial

"Common | 08/03/2026 | Restricted Stock Vesting | Issuer"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

aggregate market value financial

"5802 | 662917.47 | 14422571 | 08/04/2026"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

gross proceeds financial

"Common | 05/29/2026 | 15152 | 196675.99"

The total amount of cash a company receives from a financing event or sale before any fees, expenses, taxes or deductions are taken out. Investors watch gross proceeds because it shows the raw scale of new capital being raised—think of it as the paycheck amount before withholdings—which helps assess how much funding is available for operations, growth, debt payoff or how much shareholder dilution might occur once costs are removed.

FAQ

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

What stock sale is disclosed for KRRO in this Form 144 filing?

The filing shows Ram Aiyar intends to sell 5,802 KRRO common shares through Fidelity Brokerage, with an aggregate market value of $662,917.47, expected around August 4, 2026 on NASDAQ.

How many KRRO shares are outstanding according to this Form 144?

The Form 144 states that KRRO has 14,422,571 common shares outstanding. This provides context for the planned sale of 5,802 shares, indicating the proposed transaction represents only a small fraction of total shares.

What is the source of the KRRO shares being sold by Ram Aiyar?

The 5,802 KRRO common shares planned for sale are tied to restricted stock vesting on August 3, 2026, granted by the issuer as compensation, according to the Form 144 disclosure.

What KRRO stock transactions occurred in the last three months for this holder?

In the past three months, Ram Aiyar sold 15,152 KRRO common shares on May 29, 2026, receiving $196,675.99 in gross proceeds, as reported in the Form 144’s recent sales section.

Which broker and exchange are involved in the planned KRRO share sale?

The proposed sale of 5,802 KRRO common shares will use Fidelity Brokerage Services LLC as broker and is expected to occur on the NASDAQ market, with an aggregate market value of $662,917.47 reported.

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

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Available on EDGAR 08/04/2026 - 04:40 PM Accepted by SEC EDGAR 08/04/2026 - 04:40 PM 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	0001997920
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	Korro Bio, Inc.
SEC File Number	001-39062
Address of Issuer	60 FIRST STREET 2ND FLOOR, SUITE 250 CAMBRIDGE MASSACHUSETTS 02141
Phone	617-468-1999
Name of Person for Whose Account the Securities are To Be Sold	Aiyar Ram
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
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	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	5802	662917.47	14422571	08/04/2026	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	08/03/2026	Restricted Stock Vesting	Issuer			5802	08/03/2026	Compensation

* 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
Ram Aiyar 60 First Street 2nd Floor, Suite 250 Cambridge MA 02141	Common	05/29/2026	15152	196675.99

144: Remarks and Signature

Remarks	Sale includes an amount necessary to cover a tax obligation resulting from the settlement of a vested equity award distribution.
Date of Notice	08/04/2026
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/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Ram Aiyar
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)