AHCO

SEC source: 0001104659-18-022200 · a4.xml · nonDerivative · entry 1

Deerfield/RAB Ventures, LLC · CIK 0001731697 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,045,652

F1 · kind: 921,848 shares were forfeited to the Issuer at no cost in connection with the expiration of the underwriters' over-allotment option, as described in the Issuer's registration statement on Form S-1, as amended (File No. 333-222376).

F1 · price: 921,848 shares were forfeited to the Issuer at no cost in connection with the expiration of the underwriters' over-allotment option, as described in the Issuer's registration statement on Form S-1, as amended (File No. 333-222376).

F2 · balance_after: The shares are held directly by Deerfield/RAB Ventures, LLC and indirectly by Deerfield Private Design Fund IV, L.P., as member of Deerfield/RAB Ventures, LLC, Richard Barasch, as member and manager of Deerfield/RAB Ventures, LLC, and Steven Hochberg, as manager of Deerfield/RAB Ventures, LLC. Each of Deerfield Private Design Fund IV, L.P. and Messrs. Barasch and Hochberg disclaim beneficial ownership of the reported securities except to the extent of their pecuniary interest therein.

SEC source: 0001193805-18-000504 · e617879_4-dfb.xml · nonDerivative · entry 2

Flynn James E · CIK 0001352546 · Director · 10% owner · *Director by Deputization

Deerfield Mgmt IV, L.P. · CIK 0001713467 · Director · 10% owner · * Director by Deputization

DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) · CIK 0001009258 · Director · 10% owner · * Director by Deputization

Deerfield Private Design Fund IV, L.P. · CIK 0001680307 · Director · 10% owner · * Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Through Deerfield Management Company, L.P.

Disclosed balance after: 26,087

F1 · kind: On April 2, 2018, each of Deerfield/RAB Ventures LLC ("DRV LLC") and Steven Hochberg forfeited (for no consideration) 921,848 and 3,913 shares of Common Stock, respectively. Such shares were initially purchased by DRV LLC in a private placement prior to the Issuer's Initial Public Offering (the "IPO") and were subject to forfeiture depending upon the extent to which the underwriters in the IPO exercised their over-allotment option. The over-allotment option expired, unexercised, on April 2, 2018.

F2 · ownership.nature: This Form 4 is being filed by the undersigned as well as the entities listed on the Joint Filer Information Statement attached as an exhibit hereto (the "Reporting Persons"). Deerfield Private Design Fund IV holds a 50% membership interest in DRV LLC, and is entitled to appoint one of the two members of DRV LLC's board of managers. Deerfield Mgmt IV, L.P. is the general partner of Deerfield Private Design Fund IV. Deerfield Management Company, L.P. ("Deerfield Management") is the investment manager of Deerfield Private Design Fund IV. James E. Flynn is the sole member of the general partner of each of Deerfield Management and Deerfield Mgmt IV, L.P.

F3 · ownership.nature: In accordance with Instruction 4(b)(iv) to Form 4, the entire amount of the Issuer's securities held by Deerfield Private Design Fund IV, DRV LLC or for the benefit of Deerfield Management is reported herein. For purposes of Section 16 of the Securities Exchange Act of 1934, as amended, each Reporting Person disclaims beneficial ownership of any such securities, except to the extent of his/its indirect pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F4 · ownership.nature: Steven Hochberg, a partner in Deerfield Management Company, serves as a director of the Issuer. The common stock owned by Steven Hochberg and reported herein is held for the benefit, and at the direction, of Deerfield Management.

SEC source: 0001193805-18-000504 · e617879_4-dfb.xml · nonDerivative · entry 1

Flynn James E · CIK 0001352546 · Director · 10% owner · *Director by Deputization

Deerfield Mgmt IV, L.P. · CIK 0001713467 · Director · 10% owner · * Director by Deputization

DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) · CIK 0001009258 · Director · 10% owner · * Director by Deputization

Deerfield Private Design Fund IV, L.P. · CIK 0001680307 · Director · 10% owner · * Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Through Deerfield/RAB Ventures, LLC

Disclosed balance after: 6,045,652

F1 · kind: On April 2, 2018, each of Deerfield/RAB Ventures LLC ("DRV LLC") and Steven Hochberg forfeited (for no consideration) 921,848 and 3,913 shares of Common Stock, respectively. Such shares were initially purchased by DRV LLC in a private placement prior to the Issuer's Initial Public Offering (the "IPO") and were subject to forfeiture depending upon the extent to which the underwriters in the IPO exercised their over-allotment option. The over-allotment option expired, unexercised, on April 2, 2018.

F2 · ownership.nature: This Form 4 is being filed by the undersigned as well as the entities listed on the Joint Filer Information Statement attached as an exhibit hereto (the "Reporting Persons"). Deerfield Private Design Fund IV holds a 50% membership interest in DRV LLC, and is entitled to appoint one of the two members of DRV LLC's board of managers. Deerfield Mgmt IV, L.P. is the general partner of Deerfield Private Design Fund IV. Deerfield Management Company, L.P. ("Deerfield Management") is the investment manager of Deerfield Private Design Fund IV. James E. Flynn is the sole member of the general partner of each of Deerfield Management and Deerfield Mgmt IV, L.P.

F3 · ownership.nature: In accordance with Instruction 4(b)(iv) to Form 4, the entire amount of the Issuer's securities held by Deerfield Private Design Fund IV, DRV LLC or for the benefit of Deerfield Management is reported herein. For purposes of Section 16 of the Securities Exchange Act of 1934, as amended, each Reporting Person disclaims beneficial ownership of any such securities, except to the extent of his/its indirect pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

SEC source: 0001193805-18-000275 · e617718_4-dfb.xml · derivative · entry 5

Flynn James E · CIK 0001352546 · Director · 10% owner · *Director by Deputization

Deerfield Mgmt IV, L.P. · CIK 0001713467 · Director · 10% owner · * Director by Deputization

DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) · CIK 0001009258 · Director · 10% owner · * Director by Deputization

Deerfield Private Design Fund IV, L.P. · CIK 0001680307 · Director · 10% owner · * Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Through Deerfield/RAB Ventures, LLC

Disclosed balance after: 4,333,333

Underlying: Common Stock · 4,333,333 shares

Expires not disclosed

F6 · derivative.exercise_date: Contemporaneously with the closing of the Issuer's initial public offering, DRV LLC purchased 4,333,333 warrants to purchase Common Stock (the "Private Placement Warrants") in a private placement. The Private Placement Warrants are substantially similar to the Public Warrants, except that if held by the original holder or their permitted assigns, they (i) may be exercised on a cashless basis, (ii) are not subject to redemption and (iii) subject to certain limited exceptions, will be subject to transfer restrictions until 30 days after the completion of the Issuer's initial business combination. If the Private Placement Warrants are held by holders other than the initial purchaser or its permitted transferees, the Private Placement Warrants will be redeemable by the Issuer and exercisable by the holders on the same basis as the Public Warrants. The warrants expire five years after the completion of the Issuer's initial business combination or earlier upon redemption or liquidation.

F6 · derivative.expiration_date: Contemporaneously with the closing of the Issuer's initial public offering, DRV LLC purchased 4,333,333 warrants to purchase Common Stock (the "Private Placement Warrants") in a private placement. The Private Placement Warrants are substantially similar to the Public Warrants, except that if held by the original holder or their permitted assigns, they (i) may be exercised on a cashless basis, (ii) are not subject to redemption and (iii) subject to certain limited exceptions, will be subject to transfer restrictions until 30 days after the completion of the Issuer's initial business combination. If the Private Placement Warrants are held by holders other than the initial purchaser or its permitted transferees, the Private Placement Warrants will be redeemable by the Issuer and exercisable by the holders on the same basis as the Public Warrants. The warrants expire five years after the completion of the Issuer's initial business combination or earlier upon redemption or liquidation.

F2 · ownership.nature: This Form 4 is being filed by the undersigned as well as the entities listed on the Joint Filer Information Statement attached as an exhibit hereto (the "Reporting Persons"). Deerfield Private Design Fund IV holds a 50% membership interest in Deerfield/RAB Ventures, LLC ("DRV LLC"), and is entitled to appoint one of the two members of DRV LLC's board of managers. Deerfield Mgmt IV, L.P. is the general partner of Deerfield Private Design Fund IV. Deerfield Management Company, L.P. ("Deerfield Management") is the investment manager of Deerfield Private Design Fund IV. James E. Flynn is the sole member of the general partner of each of Deerfield Management and Deerfield Mgmt IV, L.P.

F3 · ownership.nature: In accordance with Instruction 4(b)(iv) to Form 4, the entire amount of the Issuer's securities held by Deerfield Private Design Fund IV, DRV LLC or for the benefit of Deerfield Management is reported herein. For purposes of Section 16 of the Securities Exchange Act of 1934, as amended, each Reporting Person disclaims beneficial ownership of any such securities, except to the extent of his/its indirect pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

SEC source: 0001193805-18-000275 · e617718_4-dfb.xml · derivative · entry 4

Flynn James E · CIK 0001352546 · Director · 10% owner · *Director by Deputization

Deerfield Mgmt IV, L.P. · CIK 0001713467 · Director · 10% owner · * Director by Deputization

DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) · CIK 0001009258 · Director · 10% owner · * Director by Deputization

Deerfield Private Design Fund IV, L.P. · CIK 0001680307 · Director · 10% owner · * Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Through Deerfield Private Design Fund IV, L.P.

Disclosed balance after: 833,333

Underlying: Common Stock · 833,333 shares

Expires not disclosed

F1 · price: On February 21, 2018, Deerfield Private Design Fund IV, L.P. ("Deerfield Private Design Fund IV") acquired 2,500,000 Units of the Issuer. Each Unit consists of (i) one share of common stock of the Issuer ("Common Stock") and (ii) one-third of one redeemable warrant (the "Public Warrants"). Each whole Public Warrant entitles the holder to purchase one share of Common Stock. The purchase price per Unit was $10.00.

F5 · derivative.exercise_date: The Public Warrants may be exercised only during the period commencing on the later of (i) the date that is thirty days after the first date on which the Issuer completes a business combination and (ii) twelve months after the closing of the Issuer's initial public offering on February 21, 2018; provided in each case that the Issuer has an effective registration statement covering the shares of Common Stock issuable upon exercise of the Public Warrants and a current prospectus relating to them is available (or the Issuer permits holders to exercise their warrants on a cashless basis under the circumstances specified in the warrant agreement governing the Public Warrants). The Public Warrants are subject to redemption upon the terms provided in the warrant agreement. The warrants expire five years after the completion of the Issuer's initial business combination or earlier upon redemption or liquidation.

F5 · derivative.expiration_date: The Public Warrants may be exercised only during the period commencing on the later of (i) the date that is thirty days after the first date on which the Issuer completes a business combination and (ii) twelve months after the closing of the Issuer's initial public offering on February 21, 2018; provided in each case that the Issuer has an effective registration statement covering the shares of Common Stock issuable upon exercise of the Public Warrants and a current prospectus relating to them is available (or the Issuer permits holders to exercise their warrants on a cashless basis under the circumstances specified in the warrant agreement governing the Public Warrants). The Public Warrants are subject to redemption upon the terms provided in the warrant agreement. The warrants expire five years after the completion of the Issuer's initial business combination or earlier upon redemption or liquidation.

F2 · ownership.nature: This Form 4 is being filed by the undersigned as well as the entities listed on the Joint Filer Information Statement attached as an exhibit hereto (the "Reporting Persons"). Deerfield Private Design Fund IV holds a 50% membership interest in Deerfield/RAB Ventures, LLC ("DRV LLC"), and is entitled to appoint one of the two members of DRV LLC's board of managers. Deerfield Mgmt IV, L.P. is the general partner of Deerfield Private Design Fund IV. Deerfield Management Company, L.P. ("Deerfield Management") is the investment manager of Deerfield Private Design Fund IV. James E. Flynn is the sole member of the general partner of each of Deerfield Management and Deerfield Mgmt IV, L.P.

F3 · ownership.nature: In accordance with Instruction 4(b)(iv) to Form 4, the entire amount of the Issuer's securities held by Deerfield Private Design Fund IV, DRV LLC or for the benefit of Deerfield Management is reported herein. For purposes of Section 16 of the Securities Exchange Act of 1934, as amended, each Reporting Person disclaims beneficial ownership of any such securities, except to the extent of his/its indirect pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

SEC source: 0001193805-18-000275 · e617718_4-dfb.xml · nonDerivative · entry 1

Flynn James E · CIK 0001352546 · Director · 10% owner · *Director by Deputization

Deerfield Mgmt IV, L.P. · CIK 0001713467 · Director · 10% owner · * Director by Deputization

DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) · CIK 0001009258 · Director · 10% owner · * Director by Deputization

Deerfield Private Design Fund IV, L.P. · CIK 0001680307 · Director · 10% owner · * Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Through Deerfield Private Design Fund IV, L.P.

Disclosed balance after: 2,500,000

F1 · price: On February 21, 2018, Deerfield Private Design Fund IV, L.P. ("Deerfield Private Design Fund IV") acquired 2,500,000 Units of the Issuer. Each Unit consists of (i) one share of common stock of the Issuer ("Common Stock") and (ii) one-third of one redeemable warrant (the "Public Warrants"). Each whole Public Warrant entitles the holder to purchase one share of Common Stock. The purchase price per Unit was $10.00.

F2 · ownership.nature: This Form 4 is being filed by the undersigned as well as the entities listed on the Joint Filer Information Statement attached as an exhibit hereto (the "Reporting Persons"). Deerfield Private Design Fund IV holds a 50% membership interest in Deerfield/RAB Ventures, LLC ("DRV LLC"), and is entitled to appoint one of the two members of DRV LLC's board of managers. Deerfield Mgmt IV, L.P. is the general partner of Deerfield Private Design Fund IV. Deerfield Management Company, L.P. ("Deerfield Management") is the investment manager of Deerfield Private Design Fund IV. James E. Flynn is the sole member of the general partner of each of Deerfield Management and Deerfield Mgmt IV, L.P.

F3 · ownership.nature: In accordance with Instruction 4(b)(iv) to Form 4, the entire amount of the Issuer's securities held by Deerfield Private Design Fund IV, DRV LLC or for the benefit of Deerfield Management is reported herein. For purposes of Section 16 of the Securities Exchange Act of 1934, as amended, each Reporting Person disclaims beneficial ownership of any such securities, except to the extent of his/its indirect pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

SEC source: 0001104659-18-011752 · a4.xml · derivative · entry 1

BARASCH RICHARD A · CIK 0001076341 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 4,333,333

Underlying: Common Stock · 4,333,333 shares

Expires not disclosed

F1 · derivative.exercise_date: The warrants will become exercisable on the later of 30 days after the completion of the Issuer's initial business combination or February 21, 2019.

F2 · derivative.expiration_date: The warrants expire five years after the completion of the Issuer's initial business combination or earlier upon redemption or liquidation.

F3 · ownership.nature: The securities are held directly by Deerfield/RAB Ventures, LLC and indirectly by Deerfield Private Design Fund IV, L.P., as member of Deerfield/RAB Ventures, LLC, Richard Barasch, as member and manager of Deerfield/RAB Ventures, LLC, and Steven Hochberg, as manager of Deerfield/RAB Ventures, LLC. Each of Deerfield Private Design Fund IV, L.P. and Messrs. Barasch and Hochberg disclaim beneficial ownership of the reported securities except to the extent of their pecuniary interest therein.

SEC source: 0001104659-18-011751 · a4.xml · derivative · entry 1

HOCHBERG STEVEN · CIK 0001034123 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 4,333,333

Underlying: Common Stock · 4,333,333 shares

Expires not disclosed

F1 · derivative.exercise_date: The warrants will become exercisable on the later of 30 days after the completion of the Issuer's initial business combination or February 21, 2019.

F2 · derivative.expiration_date: The warrants expire five years after the completion of the Issuer's initial business combination or earlier upon redemption or liquidation.

F3 · ownership.nature: The securities are held directly by Deerfield/RAB Ventures, LLC and indirectly by the Reporting Person, as manager of Deerfield/RAB Ventures, LLC. The Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0001104659-18-011769 · a4.xml · derivative · entry 2

Sorensen Gregory · CIK 0001731883 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 10,000 shares

Expires not disclosed

F1 · price: In connection with the Issuer's initial public offering, the Reporting Person acquired, at a price of $10 per unit, 30,000 units. Each unit consists of one share of common stock and one-third of one warrant.

F3 · derivative.exercise_date: The warrants will become exercisable on the later of 30 days after the completion of the Issuer's initial business combination or February 21, 2019.

F4 · derivative.expiration_date: The warrants expire five years after the completion of the Issuer's initial business combination or earlier upon redemption or liquidation.

SEC source: 0001104659-18-011769 · a4.xml · nonDerivative · entry 1

Sorensen Gregory · CIK 0001731883 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,000

F1 · price: In connection with the Issuer's initial public offering, the Reporting Person acquired, at a price of $10 per unit, 30,000 units. Each unit consists of one share of common stock and one-third of one warrant.

F2 · balance_after: Includes up to 3,913 shares subject to forfeiture by the Reporting Person depending on the extent to which the underwriters' option to purchase additional units is exercised.

SEC source: 0001104659-18-011754 · a4.xml · derivative · entry 1

Deerfield/RAB Ventures, LLC · CIK 0001731697 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,333,333

Underlying: Common Stock · 4,333,333 shares

Expires not disclosed

F1 · derivative.exercise_date: The warrants will become exercisable on the later of 30 days after the completion of the Issuer's initial business combination or February 21, 2019.

F2 · derivative.expiration_date: The warrants expire five years after the completion of the Issuer's initial business combination or earlier upon redemption or liquidation.

F3 · ownership.direct: The securities are held directly by Deerfield/RAB Ventures, LLC and indirectly by Deerfield Private Design Fund IV, L.P., as member of Deerfield/RAB Ventures, LLC, Richard Barasch, as member and manager of Deerfield/RAB Ventures, LLC, and Steven Hochberg, as manager of Deerfield/RAB Ventures, LLC. Each of Deerfield Private Design Fund IV, L.P. and Messrs. Barasch and Hochberg disclaim beneficial ownership of the reported securities except to the extent of their pecuniary interest therein.