SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* RTW INVESTMENTS, LP (Last) (First) (Middle) 412 W 15TH STREET, FLOOR 9 (Street) NEW YORK NY 10011 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol ROCKET PHARMACEUTICALS, INC. [ RCKT ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 08/27/2018
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Equity Swap (Obligation to Sell)(1)	$22.05	08/27/2018		J/K(2)		1		(2)	(2)	Common Stock	500,000	(2)	1	I	See footnotes(1)(4)(5)
Equity Swap (Obligation to Buy)(1)	$22.05	08/27/2018		J/K(3)		1		(3)	(3)	Common Stock	500,000	(3)	1	I	See footnotes(1)(4)(5)

1. Name and Address of Reporting Person* RTW INVESTMENTS, LP (Last) (First) (Middle) 412 W 15TH STREET, FLOOR 9 (Street) NEW YORK NY 10011 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* WONG RODERICK (Last) (First) (Middle) C/O RTW INVESTMENTS, LP 412 W 15TH STREET, FLOOR 9 (Street) NEW YORK NY 10011 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer X Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Yalamanchi Naveen (Last) (First) (Middle) C/O RTW INVESTMENTS, LP 412 W 15TH STREET, FLOOR 9 (Street) NEW YORK NY 10011 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer X Director 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. This Form 4 is being filed in connection with the equity swap transactions described below, which represent ordinary course rebalancing transactions in which the Funds (as defined below) entered into equity swap agreements to rebalance holdings between the Funds. After the transactions reported herein, the amount of Common Stock of the Issuer beneficially owned in the aggregate by the Reporting Persons did not change.

2. On August 27, 2018, RTW Innovation Master Fund, Ltd. entered into an equity swap agreement with a third party. The reported equity swap was on 500,000 shares of Common Stock of the Issuer. Under the equity swap, RTW Innovation Master Fund, Ltd. will be obligated to pay to the third party any depreciation of the reference shares between the trade date and maturity, plus an accruing funding charge, and the third party will be obligated to pay to RTW Innovation Master Fund, Ltd. any appreciation of the reference shares between the trade date and maturity, minus an accruing funding charge. The equity swap expires on August 27, 2023, subject to extension.

3. On August 27, 2018, RTW Master Fund, Ltd. entered into an equity swap agreement with the same a third party. The reported equity swap was on a basket of securities, which included 500,000 shares of Common Stock of the Issuer. Under the equity swap, RTW Master Fund, Ltd. will be obligated to pay to the third party any appreciation of the basket of reference shares between the trade date and maturity, plus an accruing funding charge, and the third party will be obligated to pay to RTW Master Fund, Ltd. any depreciation of the basket of reference shares between the trade date and maturity, minus an accruing funding charge. The equity swap expires on August 27, 2023, subject to extension.

4. The securities reported herein may be deemed beneficially owned by each of: (i) RTW Investments, LP ("RTW"), which is deemed the beneficial owner of shares held by RTW Master Fund, Ltd. and RTW Innovation Master Fund, Ltd. (collectively, the "Funds"), which are investment funds managed by RTW, (ii) Roderick Wong, M.D., who serves as the Managing Partner and Chief Investment Officer of RTW and who is a director of the Issuer and Chairman of the Issuer's Board of Directors, and (iii) Naveen Yalamanchi, M.D., who serves as a Partner and Portfolio Manager of RTW and who is a director of the Issuer. Dr. Wong exercises voting and dispositive control over the securities held by RTW and is therefore deemed be the beneficial owner of securities owned or controlled by RTW.

5. (continued from Footnote 4) Both Dr. Wong and Dr. Yalamanchi have a pecuniary interest in securities held by RTW. Dr. Yalamanchi disclaims beneficial ownership of the shares of common stock of the Issuer beneficially held by RTW, except to the extent of his pecuniary interest therein.

Remarks:

Ex. 24 - Power of Attorney

	RTW Investments, LP; By: /s/ Alice Lee, attorney-in-fact for RTW Investments, LP	08/29/2018
	/s/ Sara Turken, attorney-in-fact for Roderick Wong	08/29/2018
	/s/ Sara Turken, attorney-in-fact for Naveen Yalamanchi	08/29/2018
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
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