Miller Mary

SEC source: 0000905148-26-004399 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 81,715

F1 · kind: Shares sold automatically to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

F2 · price: The price reported in Column 4 above reflects the weighted average price of 337 shares sold by a broker on October 5, 2026, to satisfy the payment of withholding tax liability of a group of employees of the Issuer, including the reporting person. The proceeds of all such sales were allocated to the employees, including the reporting person, on a pro rata basis.

SEC source: 0000905148-26-003839 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 82,009

F1 · kind: Shares sold automatically to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-26-003334 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 82,194

F1 · kind: Shares sold automatically to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-26-002553 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 82,767

F1 · kind: These shares represent restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. Of these RSUs, 16.67% of the RSUs shall vest on November 18, 2026, and the remaining RSUs shall vest in 10 substantially equal quarterly installments thereafter, in each case subject to the Reporting Person's continuous service through each such vesting date.

SEC source: 0000905148-26-002501 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,937

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-26-001768 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,121

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-26-001119 · form4.xml · derivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 129,760

Underlying: Common Stock · 129,760 shares

Expires 2036-02-29

F1 · derivative.exercise_date: Twenty-five percent (25%) of the shares subject to the option vest on March 1, 2027, and the remaining shares subject to the option vest in 36 substantially equal monthly installments thereafter, in each case subject to the Reporting Person's continuous service through each vesting date.

SEC source: 0000905148-26-000937 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,679

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-26-000281 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,896

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-25-004130 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,555

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-25-003637 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,739

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-25-003506 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,297

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-25-003042 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,581

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-25-002493 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,765

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-25-001823 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,323

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-25-001257 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,507

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-25-001076 · form4.xml · derivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,616

Underlying: Common Stock · 15,616 shares

Expires 2035-03-31

F1 · derivative.exercise_date: Twenty-five percent (25%) of the shares subject to the option vest on April 1, 2026, and the remaining shares subject to the option vest in 36 substantially equal monthly installments thereafter, in each case subject to the Reporting Person's continuous service through each vesting date.

SEC source: 0000905148-25-000840 · form4.xml · derivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 93,693

Underlying: Common Stock · 93,693 shares

Expires 2035-02-28

F1 · derivative.exercise_date: Twenty-five percent (25%) of the shares subject to the option vest on March 1, 2026, and the remaining shares subject to the option vest in 36 substantially equal monthly installments thereafter, in each case subject to the Reporting Person's continuous service through each vesting date.

SEC source: 0000905148-25-000729 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,065

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-25-000168 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,282

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-24-003227 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,941

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-24-002773 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,125

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-24-002637 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,683

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-24-002282 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,967

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0001140361-24-033600 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,151

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-24-001493 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,709

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-24-001186 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,893

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-24-003295 · form4.xml · derivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,567

Underlying: Common Stock · 67,567 shares

Expires 2034-02-28

F1 · derivative.exercise_date: Twenty-five percent (25%) of the shares subject to the option vest on March 1, 2025, and the remaining shares subject to the option vest in 36 substantially equal monthly installments thereafter, in each case subject to the Reporting Person's continuous service through each vesting date.

SEC source: 0000905148-24-000765 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,451

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-24-000240 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,668

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-23-001477 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,320

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-23-001156 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,055

F1 · kind: Shares withheld by the Issuer to satisfy the mandatory tax withholding requirement upon vesting of restricted stock units.

SEC source: 0000905148-23-001029 · form4.xml · derivative · entry 2

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,576

Underlying: Common Stock · 11,576 shares

Expires 2033-09-25

F2 · derivative.exercise_date: Twenty-five percent (25%) of the shares subject to the option shall vest on October 1, 2024, and the remaining shares subject to the option shall vest in 36 substantially equal monthly installments thereafter, in each case subject to the Reporting Person's continuous service through each such vesting date.

SEC source: 0000905148-23-001029 · form4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,287

F1 · kind: These shares represent restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. Of these RSUs, twenty-five percent (25%) shall vest on October 1, 2024, and the remaining RSUs shall vest in three substantially equal annual installments thereafter, in each case subject to the Reporting Person's continuous service through each such vesting date.

SEC source: 0001562180-22-002943 · primarydocument.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · General Counsel & Corp Sec

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 383,512

F1 · shares: Consists of restricted stock units ("RSUs"). Each RSU represents the right to receive one share of common stock upon vesting. The RSUs vest as to 33% on March 22, 2023 with the remainder vesting in eight equal quarterly installments thereafter, subject to Ms. Miller's continued service through the applicable vesting date.

SEC source: 0001104659-22-031597 · tm228660d4_4.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · General Counsel & Corp Sec

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 328,723

F1 · shares: Consists of restricted stock units ("RSUs"). Each RSU represents the right to receive one share of common stock upon vesting. The RSUs vest as to 33% on March 4, 2023 with the remainder vesting in eight equal quarterly installments thereafter, subject to Ms. Miller's continued service through the applicable vesting date.

SEC source: 0001562180-22-001584 · primarydocument.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · General Counsel & Corp Sec

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 139,068

F1 · kind: The sales reported in this Form 4 were effected to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs") that were granted on February 11, 2021 pursuant to a "sell to cover" provision included in the RSU Agreement.

F2 · price: Represents the weighted average sales price per share. The shares sold at prices ranging from $5.75 to $6.05 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange Commission, the Issuer, or a security holder of the Issuer.

SEC source: 0001104659-21-024563 · tm216719-20_4seq1.xml · derivative · entry 1

Miller Mary · CIK 0001841088 · GC and CS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 259,575

Underlying: Class A Common Stock · 259,575 shares

Expires 2030-12-17

F2 · price: In connection with the closing of the transactions contemplated by the Business Combination Agreement, dated as of November 19, 2020, by and among Longview Acquisition Corp. ("Longview"), Clay Merger Sub, Inc., a Delaware corporation and wholly owned subsidiary of Longview ("Merger Sub"), and Butterfly Network, Inc., a Delaware corporation ("Butterfly"), pursuant to which Merger Sub merged with and into Butterfly, with Butterfly surviving as a wholly-owned subsidiary of Longview (which changed its name to "Butterfly Network, Inc.", the "Issuer"), this stock option was received in exchange for a stock option to acquire 250,000 shares of Butterfly common stock for $9.75 per share.

F1 · derivative.exercise_date: The shares underlying this option vest as to 25% on December 31, 2021, with the remainder vesting in 36 equal monthly installments thereafter, subject to Ms. Miller's continued service through the applicable vesting date.

SEC source: 0001104659-21-028226 · tm217907d1_4a.xml · derivative · entry 2

Miller Mary · CIK 0001841088 · GC and CS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 259,575

Underlying: Class A Common Stock · 259,575 shares

Expires 2030-12-17

F4 · price: Received in connection with the Merger in exchange for a stock option to acquire 250,000 shares of Butterfly common stock for $9.75 per share.

F3 · derivative.exercise_date: The shares underlying this option vest as to 25% on December 31, 2021, with the remainder vesting in 36 equal monthly installments thereafter, subject to Ms. Miller's continued service through the applicable vesting date.

SEC source: 0001104659-21-028226 · tm217907d1_4a.xml · nonDerivative · entry 1

Miller Mary · CIK 0001841088 · GC and CS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 155,745

F1 · shares: Consists of restricted stock units ("RSUs"). Each RSU represents the right to receive one share of common stock upon vesting. The RSUs vest in equal annual installments over four years beginning on February 11, 2022, subject to Ms. Miller's continued service through the applicable vesting date.

F2 · price: In connection with the closing of the transactions contemplated by the Business Combination Agreement, dated as of November 19, 2020, by and among Longview Acquisition Corp. ("Longview"), Clay Merger Sub, Inc., a Delaware corporation and wholly owned subsidiary of Longview ("Merger Sub"), and Butterfly Network, Inc., a Delaware corporation ("Butterfly"), pursuant to which Merger Sub merged with and into Butterfly (the "Merger"), with Butterfly surviving as a wholly-owned subsidiary of Longview (which changed its name to "Butterfly Network, Inc.", the "Issuer"), these shares were received in exchange for 150,000 RSUs of Butterfly.