Tansey Casey M

SEC source: 0001628280-26-065260 · wk-form4_1791320755.xml · nonDerivative · entry 1

Tansey Casey M · CIK 0001474322 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,445

F1 · shares: Represents an award of restricted stock units ("RSUs") received in lieu of cash retainer fees, which were fully vested as of the grant date. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock and has no expiration date. The Reporting Person voluntarily elected to defer receipt of the Common Stock issuable upon settlement of the RSUs until the Reporting Person's departure from the Board of Directors.

SEC source: 0001193125-26-359683 · ownership.xml · nonDerivative · entry 1

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 318,332

F1 · price: The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $11.90 to $12.70, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

SEC source: 0001193125-26-354538 · ownership.xml · nonDerivative · entry 4

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 301,891

F3 · price: The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $11.675 to $12.37, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

SEC source: 0001193125-26-354538 · ownership.xml · nonDerivative · entry 3

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 284,725

SEC source: 0001193125-26-354538 · ownership.xml · nonDerivative · entry 2

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 284,625

F2 · price: The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $11.42 to $12.01, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

SEC source: 0001193125-26-354538 · ownership.xml · nonDerivative · entry 1

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 268,904

F1 · price: The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $11.33 to $11.685, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

SEC source: 0001104659-26-084766 · tm2620811-3_4seq1.xml · nonDerivative · entry 1

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,632

F1 · shares: Represents shares of common stock received in lieu of cash fees pursuant to the Company's Non-Employee Director Compensation Policy.

SEC source: 0001628280-26-046099 · wk-form4_1782770216.xml · nonDerivative · entry 1

Tansey Casey M · CIK 0001474322 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,712

F1 · shares: Represents an award of restricted stock units ("RSUs"). The RSUs will vest on the earlier of the date of the annual meeting of stockholders to be held in 2027 or June 26, 2027. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock and has no expiration date. The Reporting Person voluntarily elected to defer receipt of the Common Stock issuable upon settlement of the RSUs until the Reporting Person's departure from the Board of Directors.

SEC source: 0001464521-26-000085 · form4.xml · derivative · entry 1

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,075

Underlying: Common Stock · 16,075 shares

Expires 2036-06-16

F1 · derivative.exercise_date: The option will vest in full on the earlier of the day prior to Heartflow's annual meeting of shareholders in 2027 and the first anniversary of the grant date, subject to continued service through such date.

SEC source: 0001628280-26-033820 · wk-form4_1778551097.xml · derivative · entry 11

Tansey Casey M · CIK 0001474322 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 1,692,658 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.

F5 · derivative.exercise_price: Each share of the Series F Preferred Stock and Series E-2 Preferred Stock converted into Common Stock immediately prior to the completion of the Offering pursuant to its terms.

F5 · price: Each share of the Series F Preferred Stock and Series E-2 Preferred Stock converted into Common Stock immediately prior to the completion of the Offering pursuant to its terms.

F5 · derivative.exercise_date: Each share of the Series F Preferred Stock and Series E-2 Preferred Stock converted into Common Stock immediately prior to the completion of the Offering pursuant to its terms.

F5 · derivative.expiration_date: Each share of the Series F Preferred Stock and Series E-2 Preferred Stock converted into Common Stock immediately prior to the completion of the Offering pursuant to its terms.

F2 · ownership.nature: After the transactions reported herein, includes (i) 1,623,245 shares of Common Stock held by U.S. Venture Partners Select Fund I, L.P. ("USVP SFI") on its own behalf and as a nominee for U.S. Venture Partners Select Fund I-A, L.P. ("USVP SFI-A" and, together with USVP SFI, the "USVP Select Funds"), (ii) 1,906,809 shares of Common Stock held by U.S. Venture Partners XII, L.P. ("USVP XII"), and (iii) 96,772 shares of Common Stock held by U.S. Venture Partners XII-A, L.P. ("USVP XII-A" and, together with USVP XII, the "USVP XII Funds").

F3 · ownership.nature: Presidio Management Group XII, L.L.C. ("PMG XII") is the general partner of USVP XII and USVP XII-A and may be deemed to have sole voting and dispositive power with respect to the shares held by USVP XII and USVP XII-A. Presidio Management Group Select Fund I, L.L.C. ("PMG Select") is the general partner of USVP SFI and USVP SFI-A and may be deemed to have sole voting and dispositive power with respect to the securites held by USVP SFI and USVP SFI-A.

F4 · ownership.nature: The Reporting Person is the managing partner and a managing member of each of PMG XII and PMG Select, and may be deemed to share voting and dispositive power with respect to the securites described herein. The Reporting Person disclaims beneficial ownership of such holdings, except to the extent of his pecuniary interest in the shares.

SEC source: 0001628280-26-033820 · wk-form4_1778551097.xml · derivative · entry 10

Tansey Casey M · CIK 0001474322 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 1,620,078 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.

F5 · derivative.exercise_price: Each share of the Series F Preferred Stock and Series E-2 Preferred Stock converted into Common Stock immediately prior to the completion of the Offering pursuant to its terms.

F5 · price: Each share of the Series F Preferred Stock and Series E-2 Preferred Stock converted into Common Stock immediately prior to the completion of the Offering pursuant to its terms.

F5 · derivative.exercise_date: Each share of the Series F Preferred Stock and Series E-2 Preferred Stock converted into Common Stock immediately prior to the completion of the Offering pursuant to its terms.

F5 · derivative.expiration_date: Each share of the Series F Preferred Stock and Series E-2 Preferred Stock converted into Common Stock immediately prior to the completion of the Offering pursuant to its terms.

F2 · ownership.nature: After the transactions reported herein, includes (i) 1,623,245 shares of Common Stock held by U.S. Venture Partners Select Fund I, L.P. ("USVP SFI") on its own behalf and as a nominee for U.S. Venture Partners Select Fund I-A, L.P. ("USVP SFI-A" and, together with USVP SFI, the "USVP Select Funds"), (ii) 1,906,809 shares of Common Stock held by U.S. Venture Partners XII, L.P. ("USVP XII"), and (iii) 96,772 shares of Common Stock held by U.S. Venture Partners XII-A, L.P. ("USVP XII-A" and, together with USVP XII, the "USVP XII Funds").

F3 · ownership.nature: Presidio Management Group XII, L.L.C. ("PMG XII") is the general partner of USVP XII and USVP XII-A and may be deemed to have sole voting and dispositive power with respect to the shares held by USVP XII and USVP XII-A. Presidio Management Group Select Fund I, L.L.C. ("PMG Select") is the general partner of USVP SFI and USVP SFI-A and may be deemed to have sole voting and dispositive power with respect to the securites held by USVP SFI and USVP SFI-A.

F4 · ownership.nature: The Reporting Person is the managing partner and a managing member of each of PMG XII and PMG Select, and may be deemed to share voting and dispositive power with respect to the securites described herein. The Reporting Person disclaims beneficial ownership of such holdings, except to the extent of his pecuniary interest in the shares.

SEC source: 0001628280-26-033820 · wk-form4_1778551097.xml · derivative · entry 9

Tansey Casey M · CIK 0001474322 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 166,666 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: The Convertible Notes automatically converted into Common Stock immediately prior to the closing of the Issuer's initial public offering (the "Offering"). The conversion price is the lower of (a) 80% of the Offering price per share and (b) the valuation of the Issuer immediately prior to the closing of the Offering divided by the number of fully diluted shares of capital stock (on an as-converted basis) outstanding immediately prior to Offering, excluding the Convertible Notes.

F1 · price: The Convertible Notes automatically converted into Common Stock immediately prior to the closing of the Issuer's initial public offering (the "Offering"). The conversion price is the lower of (a) 80% of the Offering price per share and (b) the valuation of the Issuer immediately prior to the closing of the Offering divided by the number of fully diluted shares of capital stock (on an as-converted basis) outstanding immediately prior to Offering, excluding the Convertible Notes.

F1 · derivative.exercise_date: The Convertible Notes automatically converted into Common Stock immediately prior to the closing of the Issuer's initial public offering (the "Offering"). The conversion price is the lower of (a) 80% of the Offering price per share and (b) the valuation of the Issuer immediately prior to the closing of the Offering divided by the number of fully diluted shares of capital stock (on an as-converted basis) outstanding immediately prior to Offering, excluding the Convertible Notes.

F1 · derivative.expiration_date: The Convertible Notes automatically converted into Common Stock immediately prior to the closing of the Issuer's initial public offering (the "Offering"). The conversion price is the lower of (a) 80% of the Offering price per share and (b) the valuation of the Issuer immediately prior to the closing of the Offering divided by the number of fully diluted shares of capital stock (on an as-converted basis) outstanding immediately prior to Offering, excluding the Convertible Notes.

SEC source: 0001628280-26-033820 · wk-form4_1778551097.xml · derivative · entry 8

Tansey Casey M · CIK 0001474322 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By U.S. Venture Partners Select Fund I, L.P

Disclosed balance after: 0

Underlying: Common Stock · 314,090 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: The Convertible Notes automatically converted into Common Stock immediately prior to the closing of the Issuer's initial public offering (the "Offering"). The conversion price is the lower of (a) 80% of the Offering price per share and (b) the valuation of the Issuer immediately prior to the closing of the Offering divided by the number of fully diluted shares of capital stock (on an as-converted basis) outstanding immediately prior to Offering, excluding the Convertible Notes.

F1 · price: The Convertible Notes automatically converted into Common Stock immediately prior to the closing of the Issuer's initial public offering (the "Offering"). The conversion price is the lower of (a) 80% of the Offering price per share and (b) the valuation of the Issuer immediately prior to the closing of the Offering divided by the number of fully diluted shares of capital stock (on an as-converted basis) outstanding immediately prior to Offering, excluding the Convertible Notes.

F1 · derivative.exercise_date: The Convertible Notes automatically converted into Common Stock immediately prior to the closing of the Issuer's initial public offering (the "Offering"). The conversion price is the lower of (a) 80% of the Offering price per share and (b) the valuation of the Issuer immediately prior to the closing of the Offering divided by the number of fully diluted shares of capital stock (on an as-converted basis) outstanding immediately prior to Offering, excluding the Convertible Notes.

F1 · derivative.expiration_date: The Convertible Notes automatically converted into Common Stock immediately prior to the closing of the Issuer's initial public offering (the "Offering"). The conversion price is the lower of (a) 80% of the Offering price per share and (b) the valuation of the Issuer immediately prior to the closing of the Offering divided by the number of fully diluted shares of capital stock (on an as-converted basis) outstanding immediately prior to Offering, excluding the Convertible Notes.

SEC source: 0001628280-26-033820 · wk-form4_1778551097.xml · nonDerivative · entry 4

Tansey Casey M · CIK 0001474322 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 3,626,826

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 · price: Each share of the Series F Preferred Stock and Series E-2 Preferred Stock converted into Common Stock immediately prior to the completion of the Offering pursuant to its terms.

F2 · ownership.nature: After the transactions reported herein, includes (i) 1,623,245 shares of Common Stock held by U.S. Venture Partners Select Fund I, L.P. ("USVP SFI") on its own behalf and as a nominee for U.S. Venture Partners Select Fund I-A, L.P. ("USVP SFI-A" and, together with USVP SFI, the "USVP Select Funds"), (ii) 1,906,809 shares of Common Stock held by U.S. Venture Partners XII, L.P. ("USVP XII"), and (iii) 96,772 shares of Common Stock held by U.S. Venture Partners XII-A, L.P. ("USVP XII-A" and, together with USVP XII, the "USVP XII Funds").

F3 · ownership.nature: Presidio Management Group XII, L.L.C. ("PMG XII") is the general partner of USVP XII and USVP XII-A and may be deemed to have sole voting and dispositive power with respect to the shares held by USVP XII and USVP XII-A. Presidio Management Group Select Fund I, L.L.C. ("PMG Select") is the general partner of USVP SFI and USVP SFI-A and may be deemed to have sole voting and dispositive power with respect to the securites held by USVP SFI and USVP SFI-A.

F4 · ownership.nature: The Reporting Person is the managing partner and a managing member of each of PMG XII and PMG Select, and may be deemed to share voting and dispositive power with respect to the securites described herein. The Reporting Person disclaims beneficial ownership of such holdings, except to the extent of his pecuniary interest in the shares.

SEC source: 0001628280-26-033820 · wk-form4_1778551097.xml · nonDerivative · entry 3

Tansey Casey M · CIK 0001474322 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 314,090

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 · price: The Convertible Notes automatically converted into Common Stock immediately prior to the closing of the Issuer's initial public offering (the "Offering"). The conversion price is the lower of (a) 80% of the Offering price per share and (b) the valuation of the Issuer immediately prior to the closing of the Offering divided by the number of fully diluted shares of capital stock (on an as-converted basis) outstanding immediately prior to Offering, excluding the Convertible Notes.

F2 · ownership.nature: After the transactions reported herein, includes (i) 1,623,245 shares of Common Stock held by U.S. Venture Partners Select Fund I, L.P. ("USVP SFI") on its own behalf and as a nominee for U.S. Venture Partners Select Fund I-A, L.P. ("USVP SFI-A" and, together with USVP SFI, the "USVP Select Funds"), (ii) 1,906,809 shares of Common Stock held by U.S. Venture Partners XII, L.P. ("USVP XII"), and (iii) 96,772 shares of Common Stock held by U.S. Venture Partners XII-A, L.P. ("USVP XII-A" and, together with USVP XII, the "USVP XII Funds").

F3 · ownership.nature: Presidio Management Group XII, L.L.C. ("PMG XII") is the general partner of USVP XII and USVP XII-A and may be deemed to have sole voting and dispositive power with respect to the shares held by USVP XII and USVP XII-A. Presidio Management Group Select Fund I, L.L.C. ("PMG Select") is the general partner of USVP SFI and USVP SFI-A and may be deemed to have sole voting and dispositive power with respect to the securites held by USVP SFI and USVP SFI-A.

F4 · ownership.nature: The Reporting Person is the managing partner and a managing member of each of PMG XII and PMG Select, and may be deemed to share voting and dispositive power with respect to the securites described herein. The Reporting Person disclaims beneficial ownership of such holdings, except to the extent of his pecuniary interest in the shares.

SEC source: 0001628280-26-033820 · wk-form4_1778551097.xml · nonDerivative · entry 2

Tansey Casey M · CIK 0001474322 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 233,332

SEC source: 0001628280-26-033820 · wk-form4_1778551097.xml · nonDerivative · entry 1

Tansey Casey M · CIK 0001474322 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 166,666

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 · price: The Convertible Notes automatically converted into Common Stock immediately prior to the closing of the Issuer's initial public offering (the "Offering"). The conversion price is the lower of (a) 80% of the Offering price per share and (b) the valuation of the Issuer immediately prior to the closing of the Offering divided by the number of fully diluted shares of capital stock (on an as-converted basis) outstanding immediately prior to Offering, excluding the Convertible Notes.

SEC source: 0001628280-26-033820 · wk-form4_1778551097.xml · derivative · entry 7

Tansey Casey M · CIK 0001474322 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,520

Underlying: Common Stock · 31,520 shares

Expires 2026-05-07

F7 · derivative.exercise_date: The stock option will vest in three substantially equal installments on the first three anniversaries of the grant date.

SEC source: 0001104659-26-055064 · tm2613528-6_4seq1.xml · nonDerivative · entry 1

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,286

F1 · shares: Represents an award of Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of common stock. The RSUs shall vest upon the earlier to occur of (a) the first anniversary service with the Issuer through the applicable vesting date.

SEC source: 0001104659-26-044359 · tm2612028-1_4seq1.xml · nonDerivative · entry 1

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,724

F1 · shares: Represents shares of common stock received in lieu of cash fees pursuant to the Company's Non-Employee Director Compensation Policy.

SEC source: 0001628280-26-033820 · wk-form4_1778551097.xml · derivative · entry 6

Tansey Casey M · CIK 0001474322 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,000,000

Underlying: Common Stock · 166,666 shares

Expires not disclosed

F1 · derivative.exercise_price: The Convertible Notes automatically converted into Common Stock immediately prior to the closing of the Issuer's initial public offering (the "Offering"). The conversion price is the lower of (a) 80% of the Offering price per share and (b) the valuation of the Issuer immediately prior to the closing of the Offering divided by the number of fully diluted shares of capital stock (on an as-converted basis) outstanding immediately prior to Offering, excluding the Convertible Notes.

F6 · date: This transaction occurred prior to the Issuer's registration of a class of equity securities under Section 12 of the Securities Exchange Act of 1934, as amended, in connection with the Offering, and is reported herein pursuant to Rule 16a-2(a).

F1 · derivative.exercise_date: The Convertible Notes automatically converted into Common Stock immediately prior to the closing of the Issuer's initial public offering (the "Offering"). The conversion price is the lower of (a) 80% of the Offering price per share and (b) the valuation of the Issuer immediately prior to the closing of the Offering divided by the number of fully diluted shares of capital stock (on an as-converted basis) outstanding immediately prior to Offering, excluding the Convertible Notes.

F1 · derivative.expiration_date: The Convertible Notes automatically converted into Common Stock immediately prior to the closing of the Issuer's initial public offering (the "Offering"). The conversion price is the lower of (a) 80% of the Offering price per share and (b) the valuation of the Issuer immediately prior to the closing of the Offering divided by the number of fully diluted shares of capital stock (on an as-converted basis) outstanding immediately prior to Offering, excluding the Convertible Notes.

SEC source: 0001628280-26-033820 · wk-form4_1778551097.xml · derivative · entry 5

Tansey Casey M · CIK 0001474322 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · By U.S. Venture Partners Select Fund I, L.P

Disclosed balance after: 3,769,090.08

Underlying: Common Stock · 314,090 shares

Expires not disclosed

F1 · derivative.exercise_price: The Convertible Notes automatically converted into Common Stock immediately prior to the closing of the Issuer's initial public offering (the "Offering"). The conversion price is the lower of (a) 80% of the Offering price per share and (b) the valuation of the Issuer immediately prior to the closing of the Offering divided by the number of fully diluted shares of capital stock (on an as-converted basis) outstanding immediately prior to Offering, excluding the Convertible Notes.

F6 · date: This transaction occurred prior to the Issuer's registration of a class of equity securities under Section 12 of the Securities Exchange Act of 1934, as amended, in connection with the Offering, and is reported herein pursuant to Rule 16a-2(a).

F1 · derivative.exercise_date: The Convertible Notes automatically converted into Common Stock immediately prior to the closing of the Issuer's initial public offering (the "Offering"). The conversion price is the lower of (a) 80% of the Offering price per share and (b) the valuation of the Issuer immediately prior to the closing of the Offering divided by the number of fully diluted shares of capital stock (on an as-converted basis) outstanding immediately prior to Offering, excluding the Convertible Notes.

F1 · derivative.expiration_date: The Convertible Notes automatically converted into Common Stock immediately prior to the closing of the Issuer's initial public offering (the "Offering"). The conversion price is the lower of (a) 80% of the Offering price per share and (b) the valuation of the Issuer immediately prior to the closing of the Offering divided by the number of fully diluted shares of capital stock (on an as-converted basis) outstanding immediately prior to Offering, excluding the Convertible Notes.

SEC source: 0001104659-26-005027 · tm263634-1_4seq1.xml · nonDerivative · entry 1

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,416

F1 · shares: Represents shares of common stock received in lieu of cash fees pursuant to the Company's Non-Employee Director Compensation Policy.

SEC source: 0001104659-25-100095 · tm2528856-3_4seq1.xml · nonDerivative · entry 1

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,235

F1 · shares: Represents shares of common stock received in lieu of cash fees pursuant to the Company's Non-Employee Director Compensation Policy.

SEC source: 0001628280-25-039730 · wk-form4_1754960439.xml · derivative · entry 22

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 16,447 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.

F5 · shares: Upon the closing of Heartflow's initial public offering, the convertible promissory notes automatically converted into shares of Heartflow's common stock at a conversion price of 80% of the price per share in Heartflow's initial public offering, subject to a valuation ceiling of $2.0 billion. The shares of common stock that were issuable upon conversion of the convertible promissory note had no expiration date. These shares are reported in Table II above on an as-converted basis.

F5 · derivative.exercise_date: Upon the closing of Heartflow's initial public offering, the convertible promissory notes automatically converted into shares of Heartflow's common stock at a conversion price of 80% of the price per share in Heartflow's initial public offering, subject to a valuation ceiling of $2.0 billion. The shares of common stock that were issuable upon conversion of the convertible promissory note had no expiration date. These shares are reported in Table II above on an as-converted basis.

F5 · derivative.expiration_date: Upon the closing of Heartflow's initial public offering, the convertible promissory notes automatically converted into shares of Heartflow's common stock at a conversion price of 80% of the price per share in Heartflow's initial public offering, subject to a valuation ceiling of $2.0 billion. The shares of common stock that were issuable upon conversion of the convertible promissory note had no expiration date. These shares are reported in Table II above on an as-converted basis.

SEC source: 0001628280-25-039730 · wk-form4_1754960439.xml · derivative · entry 21

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By USVP X Affiliates, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 1,655 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.

F5 · shares: Upon the closing of Heartflow's initial public offering, the convertible promissory notes automatically converted into shares of Heartflow's common stock at a conversion price of 80% of the price per share in Heartflow's initial public offering, subject to a valuation ceiling of $2.0 billion. The shares of common stock that were issuable upon conversion of the convertible promissory note had no expiration date. These shares are reported in Table II above on an as-converted basis.

F5 · derivative.exercise_date: Upon the closing of Heartflow's initial public offering, the convertible promissory notes automatically converted into shares of Heartflow's common stock at a conversion price of 80% of the price per share in Heartflow's initial public offering, subject to a valuation ceiling of $2.0 billion. The shares of common stock that were issuable upon conversion of the convertible promissory note had no expiration date. These shares are reported in Table II above on an as-converted basis.

F5 · derivative.expiration_date: Upon the closing of Heartflow's initial public offering, the convertible promissory notes automatically converted into shares of Heartflow's common stock at a conversion price of 80% of the price per share in Heartflow's initial public offering, subject to a valuation ceiling of $2.0 billion. The shares of common stock that were issuable upon conversion of the convertible promissory note had no expiration date. These shares are reported in Table II above on an as-converted basis.

F6 · ownership.nature: Presidio Management Group X, L.L.C. ("PMG X") is the general partner of U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. The Reporting Person, Steven M. Krausz, Richard W. Lewis, Jonathan D. Root and Irwin Federman are the managing members of PMG X, and share voting and dispositive power with respect to the shares held by U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. Each of the managing members of PMG X disclaims beneficial ownership of such holdings, except to the extent of their pecuniary interest in the shares, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

SEC source: 0001628280-25-039730 · wk-form4_1754960439.xml · derivative · entry 20

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By U.S. Venture Partners X, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 51,736 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.

F5 · shares: Upon the closing of Heartflow's initial public offering, the convertible promissory notes automatically converted into shares of Heartflow's common stock at a conversion price of 80% of the price per share in Heartflow's initial public offering, subject to a valuation ceiling of $2.0 billion. The shares of common stock that were issuable upon conversion of the convertible promissory note had no expiration date. These shares are reported in Table II above on an as-converted basis.

F5 · derivative.exercise_date: Upon the closing of Heartflow's initial public offering, the convertible promissory notes automatically converted into shares of Heartflow's common stock at a conversion price of 80% of the price per share in Heartflow's initial public offering, subject to a valuation ceiling of $2.0 billion. The shares of common stock that were issuable upon conversion of the convertible promissory note had no expiration date. These shares are reported in Table II above on an as-converted basis.

F5 · derivative.expiration_date: Upon the closing of Heartflow's initial public offering, the convertible promissory notes automatically converted into shares of Heartflow's common stock at a conversion price of 80% of the price per share in Heartflow's initial public offering, subject to a valuation ceiling of $2.0 billion. The shares of common stock that were issuable upon conversion of the convertible promissory note had no expiration date. These shares are reported in Table II above on an as-converted basis.

F6 · ownership.nature: Presidio Management Group X, L.L.C. ("PMG X") is the general partner of U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. The Reporting Person, Steven M. Krausz, Richard W. Lewis, Jonathan D. Root and Irwin Federman are the managing members of PMG X, and share voting and dispositive power with respect to the shares held by U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. Each of the managing members of PMG X disclaims beneficial ownership of such holdings, except to the extent of their pecuniary interest in the shares, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

SEC source: 0001628280-25-039730 · wk-form4_1754960439.xml · derivative · entry 19

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By USVP X Affiliates, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 37,244 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.

F4 · derivative.exercise_price: Each share of Series F preferred stock automatically converted into approximately 0.3425 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F4 · shares: Each share of Series F preferred stock automatically converted into approximately 0.3425 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F4 · price: Each share of Series F preferred stock automatically converted into approximately 0.3425 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F4 · derivative.exercise_date: Each share of Series F preferred stock automatically converted into approximately 0.3425 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F4 · derivative.expiration_date: Each share of Series F preferred stock automatically converted into approximately 0.3425 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F6 · ownership.nature: Presidio Management Group X, L.L.C. ("PMG X") is the general partner of U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. The Reporting Person, Steven M. Krausz, Richard W. Lewis, Jonathan D. Root and Irwin Federman are the managing members of PMG X, and share voting and dispositive power with respect to the shares held by U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. Each of the managing members of PMG X disclaims beneficial ownership of such holdings, except to the extent of their pecuniary interest in the shares, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

SEC source: 0001628280-25-039730 · wk-form4_1754960439.xml · derivative · entry 18

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By U.S. Venture Partners X, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 1,164,179 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.

F4 · derivative.exercise_price: Each share of Series F preferred stock automatically converted into approximately 0.3425 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F4 · shares: Each share of Series F preferred stock automatically converted into approximately 0.3425 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F4 · price: Each share of Series F preferred stock automatically converted into approximately 0.3425 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F4 · derivative.exercise_date: Each share of Series F preferred stock automatically converted into approximately 0.3425 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F4 · derivative.expiration_date: Each share of Series F preferred stock automatically converted into approximately 0.3425 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F6 · ownership.nature: Presidio Management Group X, L.L.C. ("PMG X") is the general partner of U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. The Reporting Person, Steven M. Krausz, Richard W. Lewis, Jonathan D. Root and Irwin Federman are the managing members of PMG X, and share voting and dispositive power with respect to the shares held by U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. Each of the managing members of PMG X disclaims beneficial ownership of such holdings, except to the extent of their pecuniary interest in the shares, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

SEC source: 0001628280-25-039730 · wk-form4_1754960439.xml · derivative · entry 17

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By USVP X Affiliates, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 2,586 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.

F3 · derivative.exercise_price: Each share of Series D preferred stock automatically converted into approximately 0.6467 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F3 · shares: Each share of Series D preferred stock automatically converted into approximately 0.6467 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F3 · price: Each share of Series D preferred stock automatically converted into approximately 0.6467 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F3 · derivative.exercise_date: Each share of Series D preferred stock automatically converted into approximately 0.6467 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F3 · derivative.expiration_date: Each share of Series D preferred stock automatically converted into approximately 0.6467 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F6 · ownership.nature: Presidio Management Group X, L.L.C. ("PMG X") is the general partner of U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. The Reporting Person, Steven M. Krausz, Richard W. Lewis, Jonathan D. Root and Irwin Federman are the managing members of PMG X, and share voting and dispositive power with respect to the shares held by U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. Each of the managing members of PMG X disclaims beneficial ownership of such holdings, except to the extent of their pecuniary interest in the shares, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

SEC source: 0001628280-25-039730 · wk-form4_1754960439.xml · derivative · entry 16

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By USVP X Affiliates, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 323 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.

F3 · derivative.exercise_price: Each share of Series D preferred stock automatically converted into approximately 0.6467 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F3 · shares: Each share of Series D preferred stock automatically converted into approximately 0.6467 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F3 · price: Each share of Series D preferred stock automatically converted into approximately 0.6467 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F3 · derivative.exercise_date: Each share of Series D preferred stock automatically converted into approximately 0.6467 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F3 · derivative.expiration_date: Each share of Series D preferred stock automatically converted into approximately 0.6467 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F6 · ownership.nature: Presidio Management Group X, L.L.C. ("PMG X") is the general partner of U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. The Reporting Person, Steven M. Krausz, Richard W. Lewis, Jonathan D. Root and Irwin Federman are the managing members of PMG X, and share voting and dispositive power with respect to the shares held by U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. Each of the managing members of PMG X disclaims beneficial ownership of such holdings, except to the extent of their pecuniary interest in the shares, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

SEC source: 0001628280-25-039730 · wk-form4_1754960439.xml · derivative · entry 15

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By U.S. Venture Partners X, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 80,855 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.

F3 · derivative.exercise_price: Each share of Series D preferred stock automatically converted into approximately 0.6467 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F3 · shares: Each share of Series D preferred stock automatically converted into approximately 0.6467 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F3 · price: Each share of Series D preferred stock automatically converted into approximately 0.6467 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F3 · derivative.exercise_date: Each share of Series D preferred stock automatically converted into approximately 0.6467 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F3 · derivative.expiration_date: Each share of Series D preferred stock automatically converted into approximately 0.6467 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F6 · ownership.nature: Presidio Management Group X, L.L.C. ("PMG X") is the general partner of U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. The Reporting Person, Steven M. Krausz, Richard W. Lewis, Jonathan D. Root and Irwin Federman are the managing members of PMG X, and share voting and dispositive power with respect to the shares held by U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. Each of the managing members of PMG X disclaims beneficial ownership of such holdings, except to the extent of their pecuniary interest in the shares, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

SEC source: 0001628280-25-039730 · wk-form4_1754960439.xml · derivative · entry 14

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By U.S. Venture Partners X, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 10,106 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.

F3 · derivative.exercise_price: Each share of Series D preferred stock automatically converted into approximately 0.6467 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F3 · shares: Each share of Series D preferred stock automatically converted into approximately 0.6467 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F3 · price: Each share of Series D preferred stock automatically converted into approximately 0.6467 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F3 · derivative.exercise_date: Each share of Series D preferred stock automatically converted into approximately 0.6467 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F3 · derivative.expiration_date: Each share of Series D preferred stock automatically converted into approximately 0.6467 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F6 · ownership.nature: Presidio Management Group X, L.L.C. ("PMG X") is the general partner of U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. The Reporting Person, Steven M. Krausz, Richard W. Lewis, Jonathan D. Root and Irwin Federman are the managing members of PMG X, and share voting and dispositive power with respect to the shares held by U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. Each of the managing members of PMG X disclaims beneficial ownership of such holdings, except to the extent of their pecuniary interest in the shares, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

SEC source: 0001628280-25-039730 · wk-form4_1754960439.xml · derivative · entry 13

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By USVP X Affiliates, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 21,295 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.

F2 · derivative.exercise_price: Each share of Series C preferred stock automatically converted into approximately 0.5764 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F2 · shares: Each share of Series C preferred stock automatically converted into approximately 0.5764 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F2 · price: Each share of Series C preferred stock automatically converted into approximately 0.5764 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F2 · derivative.exercise_date: Each share of Series C preferred stock automatically converted into approximately 0.5764 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F2 · derivative.expiration_date: Each share of Series C preferred stock automatically converted into approximately 0.5764 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F6 · ownership.nature: Presidio Management Group X, L.L.C. ("PMG X") is the general partner of U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. The Reporting Person, Steven M. Krausz, Richard W. Lewis, Jonathan D. Root and Irwin Federman are the managing members of PMG X, and share voting and dispositive power with respect to the shares held by U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. Each of the managing members of PMG X disclaims beneficial ownership of such holdings, except to the extent of their pecuniary interest in the shares, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

SEC source: 0001628280-25-039730 · wk-form4_1754960439.xml · derivative · entry 12

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By U.S. Venture Partners X, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 665,623 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.

F2 · derivative.exercise_price: Each share of Series C preferred stock automatically converted into approximately 0.5764 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F2 · shares: Each share of Series C preferred stock automatically converted into approximately 0.5764 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F2 · price: Each share of Series C preferred stock automatically converted into approximately 0.5764 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F2 · derivative.exercise_date: Each share of Series C preferred stock automatically converted into approximately 0.5764 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F2 · derivative.expiration_date: Each share of Series C preferred stock automatically converted into approximately 0.5764 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F6 · ownership.nature: Presidio Management Group X, L.L.C. ("PMG X") is the general partner of U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. The Reporting Person, Steven M. Krausz, Richard W. Lewis, Jonathan D. Root and Irwin Federman are the managing members of PMG X, and share voting and dispositive power with respect to the shares held by U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. Each of the managing members of PMG X disclaims beneficial ownership of such holdings, except to the extent of their pecuniary interest in the shares, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

SEC source: 0001628280-25-039730 · wk-form4_1754960439.xml · derivative · entry 11

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By USVP X Affiliates, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 7,040 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: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · shares: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · price: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · derivative.exercise_date: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · derivative.expiration_date: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F6 · ownership.nature: Presidio Management Group X, L.L.C. ("PMG X") is the general partner of U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. The Reporting Person, Steven M. Krausz, Richard W. Lewis, Jonathan D. Root and Irwin Federman are the managing members of PMG X, and share voting and dispositive power with respect to the shares held by U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. Each of the managing members of PMG X disclaims beneficial ownership of such holdings, except to the extent of their pecuniary interest in the shares, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

SEC source: 0001628280-25-039730 · wk-form4_1754960439.xml · derivative · entry 10

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By USVP X Affiliates, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 10,560 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: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · shares: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · price: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · derivative.exercise_date: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · derivative.expiration_date: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F6 · ownership.nature: Presidio Management Group X, L.L.C. ("PMG X") is the general partner of U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. The Reporting Person, Steven M. Krausz, Richard W. Lewis, Jonathan D. Root and Irwin Federman are the managing members of PMG X, and share voting and dispositive power with respect to the shares held by U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. Each of the managing members of PMG X disclaims beneficial ownership of such holdings, except to the extent of their pecuniary interest in the shares, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

SEC source: 0001628280-25-039730 · wk-form4_1754960439.xml · derivative · entry 9

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By U.S. Venture Partners X, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 330,078 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: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · shares: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · price: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · derivative.exercise_date: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · derivative.expiration_date: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F6 · ownership.nature: Presidio Management Group X, L.L.C. ("PMG X") is the general partner of U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. The Reporting Person, Steven M. Krausz, Richard W. Lewis, Jonathan D. Root and Irwin Federman are the managing members of PMG X, and share voting and dispositive power with respect to the shares held by U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. Each of the managing members of PMG X disclaims beneficial ownership of such holdings, except to the extent of their pecuniary interest in the shares, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

SEC source: 0001628280-25-039730 · wk-form4_1754960439.xml · derivative · entry 8

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By U.S. Venture Partners X, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 220,052 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: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · shares: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · price: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · derivative.exercise_date: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · derivative.expiration_date: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F6 · ownership.nature: Presidio Management Group X, L.L.C. ("PMG X") is the general partner of U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. The Reporting Person, Steven M. Krausz, Richard W. Lewis, Jonathan D. Root and Irwin Federman are the managing members of PMG X, and share voting and dispositive power with respect to the shares held by U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. Each of the managing members of PMG X disclaims beneficial ownership of such holdings, except to the extent of their pecuniary interest in the shares, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

SEC source: 0001628280-25-039730 · wk-form4_1754960439.xml · derivative · entry 7

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By USVP X Affiliates, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 7,040 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: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · shares: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · price: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · derivative.exercise_date: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · derivative.expiration_date: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F6 · ownership.nature: Presidio Management Group X, L.L.C. ("PMG X") is the general partner of U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. The Reporting Person, Steven M. Krausz, Richard W. Lewis, Jonathan D. Root and Irwin Federman are the managing members of PMG X, and share voting and dispositive power with respect to the shares held by U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. Each of the managing members of PMG X disclaims beneficial ownership of such holdings, except to the extent of their pecuniary interest in the shares, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

SEC source: 0001628280-25-039730 · wk-form4_1754960439.xml · derivative · entry 6

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By USVP X Affiliates, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 10,560 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: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · shares: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · price: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · derivative.exercise_date: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · derivative.expiration_date: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F6 · ownership.nature: Presidio Management Group X, L.L.C. ("PMG X") is the general partner of U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. The Reporting Person, Steven M. Krausz, Richard W. Lewis, Jonathan D. Root and Irwin Federman are the managing members of PMG X, and share voting and dispositive power with respect to the shares held by U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. Each of the managing members of PMG X disclaims beneficial ownership of such holdings, except to the extent of their pecuniary interest in the shares, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

SEC source: 0001628280-25-039730 · wk-form4_1754960439.xml · derivative · entry 5

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By U.S. Venture Partners X, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 330,078 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: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · shares: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · price: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · derivative.exercise_date: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · derivative.expiration_date: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F6 · ownership.nature: Presidio Management Group X, L.L.C. ("PMG X") is the general partner of U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. The Reporting Person, Steven M. Krausz, Richard W. Lewis, Jonathan D. Root and Irwin Federman are the managing members of PMG X, and share voting and dispositive power with respect to the shares held by U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. Each of the managing members of PMG X disclaims beneficial ownership of such holdings, except to the extent of their pecuniary interest in the shares, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

SEC source: 0001628280-25-039730 · wk-form4_1754960439.xml · derivative · entry 4

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By U.S. Venture Partners X, L.P.

Disclosed balance after: 0

Underlying: Common Stock · 220,052 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: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · shares: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · price: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · derivative.exercise_date: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F1 · derivative.expiration_date: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F6 · ownership.nature: Presidio Management Group X, L.L.C. ("PMG X") is the general partner of U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. The Reporting Person, Steven M. Krausz, Richard W. Lewis, Jonathan D. Root and Irwin Federman are the managing members of PMG X, and share voting and dispositive power with respect to the shares held by U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. Each of the managing members of PMG X disclaims beneficial ownership of such holdings, except to the extent of their pecuniary interest in the shares, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

SEC source: 0001628280-25-039730 · wk-form4_1754960439.xml · nonDerivative · entry 3

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,447

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 · price: Upon the closing of Heartflow's initial public offering, the convertible promissory notes automatically converted into shares of Heartflow's common stock at a conversion price of 80% of the price per share in Heartflow's initial public offering, subject to a valuation ceiling of $2.0 billion. The shares of common stock that were issuable upon conversion of the convertible promissory note had no expiration date. These shares are reported in Table II above on an as-converted basis.

SEC source: 0001628280-25-039730 · wk-form4_1754960439.xml · nonDerivative · entry 2

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By USVP X Affiliates, L.P.

Disclosed balance after: 98,303

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 · price: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F2 · price: Each share of Series C preferred stock automatically converted into approximately 0.5764 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F3 · price: Each share of Series D preferred stock automatically converted into approximately 0.6467 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F4 · price: Each share of Series F preferred stock automatically converted into approximately 0.3425 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F5 · price: Upon the closing of Heartflow's initial public offering, the convertible promissory notes automatically converted into shares of Heartflow's common stock at a conversion price of 80% of the price per share in Heartflow's initial public offering, subject to a valuation ceiling of $2.0 billion. The shares of common stock that were issuable upon conversion of the convertible promissory note had no expiration date. These shares are reported in Table II above on an as-converted basis.

F6 · ownership.nature: Presidio Management Group X, L.L.C. ("PMG X") is the general partner of U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. The Reporting Person, Steven M. Krausz, Richard W. Lewis, Jonathan D. Root and Irwin Federman are the managing members of PMG X, and share voting and dispositive power with respect to the shares held by U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. Each of the managing members of PMG X disclaims beneficial ownership of such holdings, except to the extent of their pecuniary interest in the shares, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

SEC source: 0001628280-25-039730 · wk-form4_1754960439.xml · nonDerivative · entry 1

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By U.S. Venture Partners X, L.P.

Disclosed balance after: 3,072,759

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 · price: Each share of Series B-1 preferred stock and Series B-2 preferred stock automatically converted into approximately 0.4031 shares of Heartflow, Inc.'s ("Heartflow") common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F2 · price: Each share of Series C preferred stock automatically converted into approximately 0.5764 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F3 · price: Each share of Series D preferred stock automatically converted into approximately 0.6467 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F4 · price: Each share of Series F preferred stock automatically converted into approximately 0.3425 shares of Heartflow's common stock immediately prior to the closing of Heartflow's initial public offering. These shares are reported in Table II above on an as-converted basis.

F5 · price: Upon the closing of Heartflow's initial public offering, the convertible promissory notes automatically converted into shares of Heartflow's common stock at a conversion price of 80% of the price per share in Heartflow's initial public offering, subject to a valuation ceiling of $2.0 billion. The shares of common stock that were issuable upon conversion of the convertible promissory note had no expiration date. These shares are reported in Table II above on an as-converted basis.

F6 · ownership.nature: Presidio Management Group X, L.L.C. ("PMG X") is the general partner of U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. The Reporting Person, Steven M. Krausz, Richard W. Lewis, Jonathan D. Root and Irwin Federman are the managing members of PMG X, and share voting and dispositive power with respect to the shares held by U.S. Venture Partners X, L.P. and USVP X Affiliates, L.P. Each of the managing members of PMG X disclaims beneficial ownership of such holdings, except to the extent of their pecuniary interest in the shares, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.

SEC source: 0001628280-25-039730 · wk-form4_1754960439.xml · derivative · entry 23

Tansey Casey M · CIK 0001474322 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,420

Underlying: Common Stock · 47,420 shares

Expires 2035-08-07

F7 · derivative.exercise_date: The option will vest in full on the earlier of Heartflow's annual meeting of shareholders in 2026 and the first anniversary of the grant date, subject to continued service through such date.

SEC source: 0001641172-25-022252 · ownership.xml · derivative · entry 8

Tansey Casey M · CIK 0001474322 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

Underlying: Common Stock · 1,074,652 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: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · price: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F2 · ownership.nature: Presidio Management Group XII, L.L.C. ("PMG XII") is the general partner of U.S. Venture Partners XII, L.P. ("USVP XII") and U.S. Venture Partners XII-A, L.P ("USVP XII-A") and has sole voting and dispositive power with respect to the shares held by USVP XII and USVP XII-A. The Reporting Person, Steven M. Krausz, Richard W. Lewis, Jonathan D. Root and Dafina Toncheva are the managing members of PMG XII, and share voting and dispositive power with respect to the shares held by USVP XII and USVP XII-A. Presidio Management Group Select Fund I, L.L.C. ("PMG Select") is the general partner of U.S. Venture Partners Select Fund I-A, L.P. ("USVP Select") and has sole voting and dispositive power with respect to the shares held by USVP Select.

F3 · ownership.nature: The Reporting Person, Richard W. Lewis, Jonathan D. Root and Dafina Toncheva are the managing members of PMG Select and share voting and dispositive power with respect to the shares held by USVP Select. Each of the managing members of PMG XII and PMG Select disclaims beneficial ownership of such holdings, except to the extent of their pecuniary interest in the shares.

F5 · ownership.nature: Consists of (i) 1,043,988 shares of Common Stock underlying Series C Preferred Stock, 496,309 shares of Common Stock underlying Series D Preferred Stock and 146,106 shares of Common Stock underlying Series E Preferred Stock held by USVP XII; (ii) 52,983 shares of Common Stock underlying Series C Preferred Stock, 25,189 shares of Common Stock underlying Series D Preferred Stock, and 7,415 shares of Common Stock underlying Series E Preferred Stock held by USVP XII-A; and (iii) 921,131 shares of Common Stock underlying Series E Preferred Stock held by U.S. Venture Partners Select Fund I, L.P. on its own behalf and as a nominee for USVP Select.

SEC source: 0001641172-25-022252 · ownership.xml · derivative · entry 7

Tansey Casey M · CIK 0001474322 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

Underlying: Common Stock · 521,498 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: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · price: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F2 · ownership.nature: Presidio Management Group XII, L.L.C. ("PMG XII") is the general partner of U.S. Venture Partners XII, L.P. ("USVP XII") and U.S. Venture Partners XII-A, L.P ("USVP XII-A") and has sole voting and dispositive power with respect to the shares held by USVP XII and USVP XII-A. The Reporting Person, Steven M. Krausz, Richard W. Lewis, Jonathan D. Root and Dafina Toncheva are the managing members of PMG XII, and share voting and dispositive power with respect to the shares held by USVP XII and USVP XII-A. Presidio Management Group Select Fund I, L.L.C. ("PMG Select") is the general partner of U.S. Venture Partners Select Fund I-A, L.P. ("USVP Select") and has sole voting and dispositive power with respect to the shares held by USVP Select.

F3 · ownership.nature: The Reporting Person, Richard W. Lewis, Jonathan D. Root and Dafina Toncheva are the managing members of PMG Select and share voting and dispositive power with respect to the shares held by USVP Select. Each of the managing members of PMG XII and PMG Select disclaims beneficial ownership of such holdings, except to the extent of their pecuniary interest in the shares.

F5 · ownership.nature: Consists of (i) 1,043,988 shares of Common Stock underlying Series C Preferred Stock, 496,309 shares of Common Stock underlying Series D Preferred Stock and 146,106 shares of Common Stock underlying Series E Preferred Stock held by USVP XII; (ii) 52,983 shares of Common Stock underlying Series C Preferred Stock, 25,189 shares of Common Stock underlying Series D Preferred Stock, and 7,415 shares of Common Stock underlying Series E Preferred Stock held by USVP XII-A; and (iii) 921,131 shares of Common Stock underlying Series E Preferred Stock held by U.S. Venture Partners Select Fund I, L.P. on its own behalf and as a nominee for USVP Select.

SEC source: 0001641172-25-022252 · ownership.xml · derivative · entry 6

Tansey Casey M · CIK 0001474322 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

Underlying: Common Stock · 1,096,971 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: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · price: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.exercise_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F1 · derivative.expiration_date: Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.

F2 · ownership.nature: Presidio Management Group XII, L.L.C. ("PMG XII") is the general partner of U.S. Venture Partners XII, L.P. ("USVP XII") and U.S. Venture Partners XII-A, L.P ("USVP XII-A") and has sole voting and dispositive power with respect to the shares held by USVP XII and USVP XII-A. The Reporting Person, Steven M. Krausz, Richard W. Lewis, Jonathan D. Root and Dafina Toncheva are the managing members of PMG XII, and share voting and dispositive power with respect to the shares held by USVP XII and USVP XII-A. Presidio Management Group Select Fund I, L.L.C. ("PMG Select") is the general partner of U.S. Venture Partners Select Fund I-A, L.P. ("USVP Select") and has sole voting and dispositive power with respect to the shares held by USVP Select.

F3 · ownership.nature: The Reporting Person, Richard W. Lewis, Jonathan D. Root and Dafina Toncheva are the managing members of PMG Select and share voting and dispositive power with respect to the shares held by USVP Select. Each of the managing members of PMG XII and PMG Select disclaims beneficial ownership of such holdings, except to the extent of their pecuniary interest in the shares.

F5 · ownership.nature: Consists of (i) 1,043,988 shares of Common Stock underlying Series C Preferred Stock, 496,309 shares of Common Stock underlying Series D Preferred Stock and 146,106 shares of Common Stock underlying Series E Preferred Stock held by USVP XII; (ii) 52,983 shares of Common Stock underlying Series C Preferred Stock, 25,189 shares of Common Stock underlying Series D Preferred Stock, and 7,415 shares of Common Stock underlying Series E Preferred Stock held by USVP XII-A; and (iii) 921,131 shares of Common Stock underlying Series E Preferred Stock held by U.S. Venture Partners Select Fund I, L.P. on its own behalf and as a nominee for USVP Select.