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Lucchino David L.

Disclosed activity across 1 company

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89987
SEC CIK
0001785288

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Korro Bio, Inc.KRRO · Entity 6388DirectorJune 11, 2024June 12, 2024

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Korro Bio, Inc.

Report date June 11, 2024 · Filed June 12, 2024

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $42.19 · Expires 2034-06-10Direct5,190 Reported balance After 2024-06-11 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2024-06-11 · Grant · Acquired 5,190 · Balance 5,190

F1: The shares subject to the option vest in full on the earlier of (i) the one-year anniversary of the grant date or (ii) the date of the next annual meeting of stockholders, subject to continued service as a non-employee director through the applicable vesting date.

Filing footnotes · ownership attribution and instrument terms

F1: The shares subject to the option vest in full on the earlier of (i) the one-year anniversary of the grant date or (ii) the date of the next annual meeting of stockholders, subject to continued service as a non-employee director through the applicable vesting date.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
December 08, 2020 Filed Dec 9, 2020 22:21 UTC Korro Bio, Inc. FREQ · Entity 6388 Exercise / conversionStock Option · Derivative 8,848 $0.00 Strike: $0.61 $0.00
Disclosure

SEC source: 0001127602-20-031021 · form4.xml · derivative · entry 7

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,352

Underlying: Common Stock · 8,848 shares

Expires 2027-06-28

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a four year period commencing on February 1, 2017, and will be fully vested and exercisable on January 1, 2021.

Read SEC document
December 08, 2020 Filed Dec 9, 2020 22:21 UTC Korro Bio, Inc. FREQ · Entity 6388 SaleCommon Stock 4,798 $31.52 $151,232.96
Disclosure

SEC source: 0001127602-20-031021 · form4.xml · nonDerivative · entry 5

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 323,800

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 15, 2020.

F4 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $31.015 to $31.595. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of Shares sold at each price.

Read SEC document
December 08, 2020 Filed Dec 9, 2020 22:21 UTC Korro Bio, Inc. FREQ · Entity 6388 SaleCommon Stock 4,050 $30.96 $125,388.00
Disclosure

SEC source: 0001127602-20-031021 · form4.xml · nonDerivative · entry 4

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 328,598

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 15, 2020.

F3 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $30.01 to $31. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of Shares sold at each price.

Read SEC document
December 08, 2020 Filed Dec 9, 2020 22:21 UTC Korro Bio, Inc. FREQ · Entity 6388 Exercise / conversionCommon Stock 8,848 $0.61 $5,397.28
Disclosure

SEC source: 0001127602-20-031021 · form4.xml · nonDerivative · entry 3

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 332,648

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
December 07, 2020 Filed Dec 9, 2020 22:21 UTC Korro Bio, Inc. FREQ · Entity 6388 Exercise / conversionStock Option · Derivative 4,666 $0.00 Strike: $0.61 $0.00
Disclosure

SEC source: 0001127602-20-031021 · form4.xml · derivative · entry 6

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,200

Underlying: Common Stock · 4,666 shares

Expires 2027-06-28

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a four year period commencing on February 1, 2017, and will be fully vested and exercisable on January 1, 2021.

Read SEC document
December 07, 2020 Filed Dec 9, 2020 22:21 UTC Korro Bio, Inc. FREQ · Entity 6388 SaleCommon Stock 4,666 $30.02 $140,065.39
Disclosure

SEC source: 0001127602-20-031021 · form4.xml · nonDerivative · entry 2

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 323,800

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 15, 2020.

F2 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $30 to $30.215. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of Shares sold at each price.

Read SEC document
December 07, 2020 Filed Dec 9, 2020 22:21 UTC Korro Bio, Inc. FREQ · Entity 6388 Exercise / conversionCommon Stock 4,666 $0.61 $2,846.26
Disclosure

SEC source: 0001127602-20-031021 · form4.xml · nonDerivative · entry 1

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 328,466

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
December 01, 2020 Filed Dec 3, 2020 21:40 UTC Korro Bio, Inc. FREQ · Entity 6388 SaleCommon Stock 600 $28.65 $17,190.00
Disclosure

SEC source: 0001127602-20-030426 · form4.xml · nonDerivative · entry 2

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 323,800

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 15, 2020.

F3 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $28.56 to $29.02. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of Shares sold at each price.

Read SEC document
December 01, 2020 Filed Dec 3, 2020 21:40 UTC Korro Bio, Inc. FREQ · Entity 6388 SaleCommon Stock 15,114 $27.90 $421,680.60
Disclosure

SEC source: 0001127602-20-030426 · form4.xml · nonDerivative · entry 1

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 324,400

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 15, 2020.

F2 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $27.51 to $28.45. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of Shares sold at each price.

Read SEC document
November 02, 2020 Filed Nov 3, 2020 23:57 UTC Korro Bio, Inc. FREQ · Entity 6388 SaleCommon Stock 2,749 $21.41 $58,856.09
Disclosure

SEC source: 0001127602-20-028050 · form4.xml · nonDerivative · entry 2

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 339,514

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 15, 2020.

F3 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $21.03 to $21.97. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of Shares sold at each price.

Read SEC document
November 02, 2020 Filed Nov 3, 2020 23:57 UTC Korro Bio, Inc. FREQ · Entity 6388 SaleCommon Stock 12,965 $20.68 $268,116.20
Disclosure

SEC source: 0001127602-20-028050 · form4.xml · nonDerivative · entry 1

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 342,263

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 15, 2020.

F2 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $20.01 to $21.005. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of Shares sold at each price.

Read SEC document
October 01, 2020 Filed Oct 5, 2020 20:26 UTC Korro Bio, Inc. FREQ · Entity 6388 SaleCommon Stock 4,878 $19.71 $96,145.38
Disclosure

SEC source: 0001127602-20-026530 · form4.xml · nonDerivative · entry 2

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 355,228

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 20, 2019.

F3 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $19.29 to $19.94. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of Shares sold at each price.

Read SEC document
October 01, 2020 Filed Oct 5, 2020 20:26 UTC Korro Bio, Inc. FREQ · Entity 6388 SaleCommon Stock 10,838 $18.87 $204,513.06
Disclosure

SEC source: 0001127602-20-026530 · form4.xml · nonDerivative · entry 1

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 360,106

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 20, 2019.

F2 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $18.28 to $19.25. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of Shares sold at each price.

Read SEC document
September 01, 2020 Filed Sep 3, 2020 20:16 UTC Korro Bio, Inc. FREQ · Entity 6388 SaleCommon Stock 3,586 $19.05 $68,318.32
Disclosure

SEC source: 0001127602-20-024702 · form4.xml · nonDerivative · entry 2

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 370,944

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 20, 2019.

F3 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $18.78 to $19.225. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of Shares sold at each price.

Read SEC document
September 01, 2020 Filed Sep 3, 2020 20:16 UTC Korro Bio, Inc. FREQ · Entity 6388 SaleCommon Stock 12,128 $18.40 $223,155.20
Disclosure

SEC source: 0001127602-20-024702 · form4.xml · nonDerivative · entry 1

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 374,530

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 20, 2019.

F2 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $17.75 to $18.71. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of Shares sold at each price.

Read SEC document
August 03, 2020 Filed Aug 5, 2020 21:05 UTC Korro Bio, Inc. FREQ · Entity 6388 SaleCommon Stock 15,714 $21.63 $339,829.39
Disclosure

SEC source: 0001127602-20-022915 · form4.xml · nonDerivative · entry 1

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 386,658

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 20, 2019.

F2 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $21.31 to $21.99. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of Shares sold at each price.

Read SEC document
July 01, 2020 Filed Jul 2, 2020 20:59 UTC Korro Bio, Inc. FREQ · Entity 6388 SaleCommon Stock 15,714 $22.45 $352,832.73
Disclosure

SEC source: 0001127602-20-020974 · form4.xml · nonDerivative · entry 1

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 402,372

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 20, 2019.

F2 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $22.05 to $23.01. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of Shares sold at each price.

Read SEC document
June 02, 2020 Filed Jun 4, 2020 22:32 UTC Korro Bio, Inc. FREQ · Entity 6388 SaleCommon Stock 3,839 $18.57 $71,276.41
Disclosure

SEC source: 0001127602-20-018891 · form4.xml · nonDerivative · entry 1

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 418,086

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 20, 2019.

F2 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $18.15 to $19.00. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of Shares sold at each price.

Read SEC document
June 01, 2020 Filed Jun 2, 2020 20:40 UTC Korro Bio, Inc. FREQ · Entity 6388 SaleCommon Stock 11,875 $17.91 $212,653.94
Disclosure

SEC source: 0001127602-20-018455 · form4.xml · nonDerivative · entry 1

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 421,925

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 20, 2019.

F2 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $17.46 to $18.31. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of Shares sold at each price.

Read SEC document
May 08, 2020 Filed May 12, 2020 20:32 UTC Korro Bio, Inc. FREQ · Entity 6388 SaleCommon Stock 10,478 $18.18 $190,494.23
Disclosure

SEC source: 0001127602-20-016284 · form4.xml · nonDerivative · entry 1

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 433,800

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 20, 2019.

F2 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $18.00 to $18.60. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of Shares sold at each price.

Read SEC document
May 05, 2020 Filed May 7, 2020 20:41 UTC Korro Bio, Inc. FREQ · Entity 6388 SaleCommon Stock 5,239 $16.19 $84,834.60
Disclosure

SEC source: 0001127602-20-015778 · form4.xml · nonDerivative · entry 1

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 444,278

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 20, 2019.

F2 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $16.00 to $16.50. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of Shares sold at each price.

Read SEC document
May 01, 2020 Filed May 4, 2020 20:15 UTC Korro Bio, Inc. FREQ · Entity 6388 SaleCommon Stock 5,236 $15.28 $79,997.18
Disclosure

SEC source: 0001127602-20-015183 · form4.xml · nonDerivative · entry 1

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 449,517

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 20, 2019.

F2 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $15.06 to $15.61. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of Shares sold at each price.

Read SEC document
April 24, 2020 Filed Apr 28, 2020 20:02 UTC Korro Bio, Inc. FREQ · Entity 6388 SaleCommon Stock 729 $16.35 $11,919.44
Disclosure

SEC source: 0001127602-20-014596 · form4.xml · nonDerivative · entry 1

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 454,753

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 20, 2019.

F2 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $16.07 to $16.74. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of Shares sold at each price.

Read SEC document
April 23, 2020 Filed Apr 24, 2020 21:06 UTC Korro Bio, Inc. FREQ · Entity 6388 SaleCommon Stock 1,410 $16.08 $22,673.65
Disclosure

SEC source: 0001127602-20-014490 · form4.xml · nonDerivative · entry 1

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 455,482

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 20, 2019.

F2 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $16.00 to $16.44. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of Shares sold at each price.

Read SEC document
April 17, 2020 Filed Apr 21, 2020 20:29 UTC Korro Bio, Inc. FREQ · Entity 6388 SaleCommon Stock 3,100 $16.00 $49,600.00
Disclosure

SEC source: 0001127602-20-014220 · form4.xml · nonDerivative · entry 1

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 456,892

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 20, 2019.

F2 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $16.00 to $16.02. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of Shares sold at each price.

Read SEC document
April 15, 2020 Filed Apr 17, 2020 19:53 UTC Korro Bio, Inc. FREQ · Entity 6388 SaleCommon Stock 5,236 $15.13 $79,234.29
Disclosure

SEC source: 0001127602-20-014027 · form4.xml · nonDerivative · entry 1

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 459,992

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 20, 2019.

F2 · price: This transaction was executed in multiple trades through a broker-dealer at prices ranging from $14.73 to $15.465. The price reported in this column reflects the weighted average sales price. Upon request, the reporting person will provide to the SEC staff full information regarding the number of Shares sold at each price.

Read SEC document
February 12, 2020 Filed Feb 14, 2020 21:21 UTC Korro Bio, Inc. FREQ · Entity 6388 GrantStock Option · Derivative 242,500 $0.00 Strike: $25.05 $0.00
Disclosure

SEC source: 0001127602-20-005635 · form4.xml · derivative · entry 1

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 242,500

Underlying: Common Stock · 242,500 shares

Expires 2030-02-11

F1 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a four year period commencing on February 1, 2020, and will be fully vested and exercisable on January 1, 2024

Read SEC document
December 30, 2019 Filed Jan 2, 2020 21:06 UTC Korro Bio, Inc. FREQ · Entity 6388 Exercise / conversionStock Option · Derivative 20,787 $0.00 Strike: $0.61 $0.00
Disclosure

SEC source: 0000899243-20-000051 · doc4.xml · derivative · entry 4

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 310,647

Underlying: Common Stock · 20,787 shares

Expires 2028-05-21

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a four year period commencing on February 1, 2018, and will be fully vested and exercisable on January 1, 2022.

Read SEC document
December 30, 2019 Filed Jan 2, 2020 21:06 UTC Korro Bio, Inc. FREQ · Entity 6388 Exercise / conversionStock Option · Derivative 36,590 $0.00 Strike: $0.61 $0.00
Disclosure

SEC source: 0000899243-20-000051 · doc4.xml · derivative · entry 3

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,866

Underlying: Common Stock · 36,590 shares

Expires 2027-06-28

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a four year period commencing on February 1, 2017, and will be fully vested and exercisable on January 1, 2021.

Read SEC document
December 30, 2019 Filed Jan 2, 2020 21:06 UTC Korro Bio, Inc. FREQ · Entity 6388 Exercise / conversionCommon Stock 20,787 $0.61 $12,680.07
Disclosure

SEC source: 0000899243-20-000051 · doc4.xml · nonDerivative · entry 2

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 465,228

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
December 30, 2019 Filed Jan 2, 2020 21:06 UTC Korro Bio, Inc. FREQ · Entity 6388 Exercise / conversionCommon Stock 36,590 $0.61 $22,319.90
Disclosure

SEC source: 0000899243-20-000051 · doc4.xml · nonDerivative · entry 1

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 444,441

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
December 03, 2019 Filed Dec 5, 2019 20:01 UTC Korro Bio, Inc. FREQ · Entity 6388 GrantStock Option · Derivative 96,361 $0.00 Strike: $3.37 $0.00
Disclosure

SEC source: 0000899243-19-028546 · doc4.xml · derivative · entry 1

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 96,361

Underlying: Common Stock · 96,361 shares

Expires 2029-04-16

F1 · derivative.exercise_date: The option is fully vested.

Read SEC document
October 07, 2019 Filed Oct 8, 2019 00:31 UTC Korro Bio, Inc. FREQ · Entity 6388 ConversionSeries B Preferred Stock · Derivative 27,161 Not disclosed Not disclosed
Disclosure

SEC source: 0000899243-19-025217 · doc4.xml · derivative · entry 3

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,033 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Upon the closing of the Issuer's initial public offering, each share of preferred stock automatically converted into shares of the Issuer's common stock on a 0.148467077-for-one basis.

F1 · price: Upon the closing of the Issuer's initial public offering, each share of preferred stock automatically converted into shares of the Issuer's common stock on a 0.148467077-for-one basis.

F1 · derivative.exercise_date: Upon the closing of the Issuer's initial public offering, each share of preferred stock automatically converted into shares of the Issuer's common stock on a 0.148467077-for-one basis.

F1 · derivative.expiration_date: Upon the closing of the Issuer's initial public offering, each share of preferred stock automatically converted into shares of the Issuer's common stock on a 0.148467077-for-one basis.

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October 07, 2019 Filed Oct 8, 2019 00:31 UTC Korro Bio, Inc. FREQ · Entity 6388 ConversionSeries A Preferred Stock · Derivative 43,989 Not disclosed Not disclosed
Disclosure

SEC source: 0000899243-19-025217 · doc4.xml · derivative · entry 2

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 6,530 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Upon the closing of the Issuer's initial public offering, each share of preferred stock automatically converted into shares of the Issuer's common stock on a 0.148467077-for-one basis.

F1 · price: Upon the closing of the Issuer's initial public offering, each share of preferred stock automatically converted into shares of the Issuer's common stock on a 0.148467077-for-one basis.

F1 · derivative.exercise_date: Upon the closing of the Issuer's initial public offering, each share of preferred stock automatically converted into shares of the Issuer's common stock on a 0.148467077-for-one basis.

F1 · derivative.expiration_date: Upon the closing of the Issuer's initial public offering, each share of preferred stock automatically converted into shares of the Issuer's common stock on a 0.148467077-for-one basis.

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October 07, 2019 Filed Oct 8, 2019 00:31 UTC Korro Bio, Inc. FREQ · Entity 6388 ConversionCommon Stock 10,563 Not disclosed Not disclosed
Disclosure

SEC source: 0000899243-19-025217 · doc4.xml · nonDerivative · entry 1

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 407,851

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Upon the closing of the Issuer's initial public offering, each share of preferred stock automatically converted into shares of the Issuer's common stock on a 0.148467077-for-one basis.

F1 · price: Upon the closing of the Issuer's initial public offering, each share of preferred stock automatically converted into shares of the Issuer's common stock on a 0.148467077-for-one basis.

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October 02, 2019 Filed Oct 3, 2019 01:45 UTC Korro Bio, Inc. FREQ · Entity 6388 GrantStock Option · Derivative 714,413 $0.00 Strike: $14.00 $0.00
Disclosure

SEC source: 0000899243-19-024838 · doc4.xml · derivative · entry 3

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 714,413

Underlying: Common Stock · 714,413 shares

Expires 2029-10-01

F4 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a four year period commencing on November 2, 2019, and will be fully vested and exercisable on October 2, 2023.

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April 17, 2019 Filed Oct 3, 2019 01:45 UTC Korro Bio, Inc. FREQ · Entity 6388 GrantStock Option · Derivative 444,371 $0.00 Strike: $3.37 $0.00
Disclosure

SEC source: 0000899243-19-024838 · doc4.xml · derivative · entry 2

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 444,371

Underlying: Common Stock · 444,371 shares

Expires 2029-04-16

F1 · security: This transaction is being reported pursuant to Rule 16a-2(a), and the securities covered by such transaction were previously included on the Reporting Person's Form 3.

F3 · derivative.exercise_date: The option vests and becomes exercisable in equal monthly installments over a four year period commencing on February 1, 2019, and will be fully vested and exercisable on January 1, 2023.

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April 17, 2019 Filed Oct 3, 2019 01:45 UTC Korro Bio, Inc. FREQ · Entity 6388 GrantStock Option · Derivative 96,361 $0.00 Strike: $3.37 $0.00
Disclosure

SEC source: 0000899243-19-024838 · doc4.xml · derivative · entry 1

Lucchino David L. · CIK 0001785288 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 96,361

Underlying: Common Stock · 96,361 shares

Expires 2029-04-16

F1 · security: This transaction is being reported pursuant to Rule 16a-2(a), and the securities covered by such transaction were previously included on the Reporting Person's Form 3.

F2 · derivative.exercise_date: The option is fully vested.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.