X0306 4 2019-01-23 0 0001600132 Bellerophon Therapeutics, Inc. BLPH 0001277997 VENROCK ASSOCIATES IV L P C/O VENROCK 3340 HILLVIEW AVENUE PALO ALTO CA 94304 0 0 1 0 0001305239 Venrock Partners, L.P. C/O VENROCK 3340 HILLVIEW AVENUE PALO ALTO CA 94304 0 0 1 0 0001277994 VENROCK ENTREPRENEURS FUND IV L P C/O VENROCK 3340 HILLVIEW AVENUE PALO ALTO CA 94304 0 0 1 0 0001305243 VEF Management IV, LLC C/O VENROCK 3340 HILLVIEW AVENUE PALO ALTO CA 94304 0 0 1 0 0001305238 Venrock Management IV, LLC C/O VENROCK 3340 HILLVIEW AVENUE PALO ALTO CA 94304 0 0 1 0 0001305240 Venrock Partners Management, LLC C/O VENROCK 3340 HILLVIEW AVENUE PALO ALTO CA 94304 0 0 1 0 0001602264 Venrock Healthcare Capital Partners II, L.P. C/O VENROCK 3340 HILLVIEW AVENUE PALO ALTO CA 94304 0 0 1 0 0001615983 VHCP Co-Investment Holdings II, LLC C/O VENROCK 3340 HILLVIEW AVENUE PALO ALTO CA 94304 0 0 1 0 0001602263 VHCP Management II, LLC C/O VENROCK 3340 HILLVIEW AVENUE PALO ALTO CA 94304 0 0 1 0 0001615979 Koh Bong Y C/O VENROCK 3340 HILLVIEW AVENUE PALO ALTO CA 94304 0 0 1 0 Common Stock 2019-01-23 4 P 0 142857 0.70 A 7529020 I By funds This Form 4 is the first of two Form 4s being filed to report the beneficial ownership of the following Reporting Persons: Venrock Associates IV, LP, Venrock Partners, LP, Venrock Entrepreneurs Fund IV, LP, Venrock Management IV, LLC, Venrock Partners Management, LLC, VEF Management IV, LLC, Venrock Healthcare Capital Partners II, LP, VHCP Management II, LLC, VHCP Co Investment Holdings II, LLC, Venrock Healthcare Capital Partners III, LP, VHCP Management III, LLC, VHCP Co Investment Holdings III, LLC, Bong Koh and Nimish Shah. Two Form 4s are being filed because each form can report a maximum of 10 reporting persons. Consists of (i) 129,871 shares purchased by Venrock Healthcare Capital Partners III, LP and (ii) 12,986 shares purchased by VHCP Co-Investment Holdings III, LLC. Venrock Management IV, LLC ("VM4") is the general partner of Venrock Associates IV, LP. Venrock Partners Management, LLC ("VPM") is the general partner of Venrock Partners, LP. VEF Management IV, LLC ("VEFM") is the general partner of Venrock Entrepreneurs Fund IV, LP. VHCP Management II, LLC ("VHCPM2") is the general partner of Venrock Healthcare Capital Partners II, LP and the manager of VHCP Co- Investment Holdings II, LLC. VHCP Management III, LLC ("VHCPM3") is the general partner of Venrock Healthcare Capital Partners III, LP and the manager of VHCP Co-Investment Holdings III, LLC. Bong Koh and Nimish Shah are the managing members of VHCPM2 and VHCPM3. Each of VM4, VPM, VEFM, VHCPM2, VHCPM3, Bong Koh and Nimish Shah (together, the "Managers") may be deemed to beneficially own these shares. Each of the Managers expressly disclaims beneficial ownership over these shares except to the extent of their indirect pecuniary interests therein. David L. Stepp, Authorized Signatory 2019-03-14 David L. Stepp, Authorized Signatory 2019-03-14 David L. Stepp, Authorized Signatory 2019-03-14 David L. Stepp, Authorized Signatory 2019-03-14 David L. Stepp, Authorized Signatory 2019-03-14 David L. Stepp, Authorized Signatory 2019-03-14 David L. Stepp, Authorized Signatory 2019-03-14 David L. Stepp, Authorized Signatory 2019-03-14 David L. Stepp, Authorized Signatory 2019-03-14 David L. Stepp, Attorney-in-fact 2019-03-14