SC 13G

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

Sensus Healthcare, Inc. (SRTSU)

Units

(Title of Class of Securities)

81728J208

(CUSIP Number)

June 3, 2016

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

[  ] Rule 13d-1(b)

[X] Rule 13d-1(c)

[  ] Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

CUSIP No.	81728J208
1.	NAME OF REPORTING PERSONS
	I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
	RTW INVESTMENTS, LLC
2.	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
	(a) [  ]
	(b) [X]
3.	SEC USE ONLY
4.	CITIZENSHIP OR PLACE OF ORGANIZATION
	Delaware, United States of America

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH

5.	SOLE VOTING POWER
	0
6.	SHARED VOTING POWER
	155,000
7.	SOLE DISPOSITIVE POWER
	0
8.	SHARED DISPOSITIVE POWER
	155,000
9.	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	155,000
10.	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
	[  ]
11.	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
	6.74%
12.	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	IA

CUSIP No.	81728J208
1.	NAME OF REPORTING PERSONS
	I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
	RTW MASTER FUND, LTD.
2.	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
	(a) [  ]
	(b) [X]
3.	SEC USE ONLY
	CITIZENSHIP OR PLACE OF ORGANIZATION
	Cayman Islands

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH

4.	SOLE VOTING POWER
	0
5.	SHARED VOTING POWER
	151,618
6.	SOLE DISPOSITIVE POWER
	0
7.	SHARED DISPOSITIVE POWER
	151,618
8.	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	151,618
9.	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
	[  ]
10.	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
	6.59%
11.	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	CO

CUSIP No.	81728J208
12.	NAME OF REPORTING PERSONS
	I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
	Roderick Wong
13.	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
	(a) [  ]
	(b) [X]
14.	SEC USE ONLY
	CITIZENSHIP OR PLACE OF ORGANIZATION
	United States of America

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH

15.	SOLE VOTING POWER
	0
16.	SHARED VOTING POWER
	155,000
17.	SOLE DISPOSITIVE POWER
	0
18.	SHARED DISPOSITIVE POWER
	155,000
19.	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	155,000
20.	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
	[  ]
21.	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
	6.74%
22.	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	IN, HC

Item 1.	(a).	Name of Issuer:
		Sensus Healthcare, Inc. (SRTSU)
	(b).	Address of issuer’s principal executive offices:
		851 Broken Sound Parkway NW, Suite 215, Boca Raton, FL 33487
Item 2.	(a).	Name of person filing:
		RTW Investments, LLC
		RTW Master Fund Ltd.
		Roderick Wong
	(b).	Address or principal business office or, if none, residence:
		RTW Investments, LLC
		250 West 55th Street, 16th Floor
		Suite A
		New York, NY 10019
		RTW Master Fund, Ltd.
		C/O Intertrust Corporate Services (Cayman) Ltd.,
		190 Elgin Avenue,
		George Town,
		Grand Cayman,
		Cayman Islands,
		KY1-9001
		Roderick Wong
		c/o RTW Investments, LLC
		250 West 55th Street, 16th Floor
		Suite A
		New York, NY 10019
	(c).	Citizenship:
		RTW Investments, LLC – Delaware, United States of America
		RTW Master Fund, Ltd. – Cayman Islands
		Roderick Wong – United States of America
	(d).	Title of class of securities:
		Units
	(e).	CUSIP No.:
		81728J208

Item 3.	If This Statement is filed pursuant to §§.240.13d-1(b) or 240.13d-2(b), or (c), check whether the person filing is a
	N/A
Item 4.	Ownership.
	Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.
	(a)	Amount beneficially owned:
		RTW Investments, LLC: 155,000*
		RTW Master Fund, Ltd.: 151,618*
		Roderick Wong: 155,000*
	(b)	Percent of class:
		RTW Investments, LLC: 6.74%*
		RTW Master Fund, Ltd.: 6.59%*
		Roderick Wong: 6.74%*
	(c)	Number of shares as to which RTW Investments, LLC has:

(i)	Sole power to vote or to direct the vote	0,
(ii)	Shared power to vote or to direct the vote	155,000*
(iii)	Sole power to dispose or to direct the disposition of	0,
(iv)	Shared power to dispose or to direct the disposition of	155,000*
Number of shares as to which RTW Master Fund, Ltd. has:
(i)	Sole power to vote or to direct the vote	0,
(ii)	Shared power to vote or to direct the vote	151,618*
(iii)	Sole power to dispose or to direct the disposition of	0,
(iv)	Shared power to dispose or to direct the disposition of	151,618*
Number of shares as to which Roderick Wong has:
(i)	Sole power to vote or to direct the vote	0,
(ii)	Shared power to vote or to direct the vote	155,000*
(iii)	Sole power to dispose or to direct the disposition of	0,
(iv)	Shared power to dispose or to direct the disposition of	155,000*

*On June 8, 2016, Sensus Healthcare, Inc. (the “Company”) issued a press release announcing that it had closed its initial public offering of 2,300,000 units (the “Units”), each consisting of one share of the Company’s common stock and one warrant to purchase one share of the Company’s common stock. The Units sold in the Company’s initial public offering included 300,000 Units purchased by the underwriters pursuant to an over-allotment option that was exercised in full. The Units of the Company reported herein are held by RTW Master Fund, Ltd. (the “Master Fund”) and RTW Innovation Master Fund, Ltd., (the “Innovation Fund”), (collectively, the “Funds”), which are managed by RTW Investments, LLC (the “Adviser”). Roderick Wong is the Managing Member of the Adviser. The Adviser, in its capacity as the investment manager the Funds, has the sole power to vote and the sole power to direct the disposition of all Units held by the Funds. Accordingly, for the purposes of Reg. Section 240.13d-3, the Adviser may be deemed to beneficially own an aggregate of 155,000 Units or 6.74% of the Units issued and outstanding as of June 8, 2016. The beneficial ownership percentage reported herein is based on 2,300,000 Units issued and outstanding as of June 8, 2016, as disclosed in the Company’s Form 8-K, as filed with the Securities and Exchange Commission on June 8, 2016. This report shall not be deemed an admission that the Adviser or Roderick Wong is the beneficial owner of the securities reported herein for purposes of Section 13 of the Securities Exchange Act of 1934, as amended, or for any other purpose. Each of the reporting persons herein disclaims beneficial ownership of the Units reported herein except to the extent of the reporting person’s pecuniary interest therein.

Item 5.	Ownership of Five Percent or Less of a Class.
	If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following [  ].
	N/A
Item 6.	Ownership of More Than Five Percent on Behalf of Another Person.
	If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following [  ].
	N/A
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company or control person has filed this schedule, pursuant to Rule 13d-1(b)(1)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company or control person has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary.
	N/A
Item 8.	Identification and Classification of Members of the Group.
	If a group has filed this schedule pursuant to §240.13d-1(b)(1)(ii)(J), so indicate under Item 3(j) and attach an exhibit stating the identity and Item 3 classification of each member of the group. If a group has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identity of each member of the group.
	N/A
Item 9.	Notice of Dissolution of the Group.
	Notice of dissolution of a group may be furnished as an exhibit stating the date of the dissolution and that all further filings with respect to transactions in the security reported on will be filed, if required, by members of the group, in their individual capacity. See Item 5.
	N/A
Item 10.	Certification.
	By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Dated: June 13, 2016	RTW Investments, LLC
	By:	/s/ Roderick Wong
		Roderick Wong, Managing Member
	RTW Master Fund, Ltd.
	By:	/s/ Roderick Wong
		Roderick Wong, Director
	Roderick Wong
	By:	/s/ Roderick Wong
		Roderick Wong, Individually

The original statement shall be signed by each person on whose behalf the statement is filed or his authorized representative. If the statement is signed on behalf of a person by his authorized representative other than an executive officer or general partner of the filing person, evidence of the representative’s authority to sign on behalf of such person shall be filed with the statement, provided, however, that a power of attorney for this purpose which is already on file with the Commission may be incorporated by reference. The name and any title of each person who signs the statement shall be typed or printed beneath his signature.

Note. Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See s.240.13d-7 for other parties for whom copies are to be sent.

Attention. Intentional misstatements or omissions of fact constitute Federal criminal violations (see 18 U.S.C. 1001).

EX-1

Exhibit 1

Joint Filing Statement

Pursuant to Rule 13d-1(k)(1)

The undersigned hereby consent and agree to the joint filing of Schedule 13G under the Securities Exchange Act of 1934, as amended, with respect to the Units of Sensus Healthcare, Inc. beneficially owned by them, together with any or all amendments thereto, when and if appropriate. The parties hereto further consent and agree to file this Joint Filing Statement pursuant to Rule13d-1(k)(1)(iii) as an exhibit to Schedule 13G, thereby incorporating the same into such Schedule13G.

This Joint Filing Statement may be terminated by any of the undersigned upon written notice or such lesser period of notice as the undersigned may mutually agree.

Dated: June 13, 2016	RTW Investments, LLC
	By:	/s/ Roderick Wong
		Roderick Wong, Managing Member
	RTW Master Fund, Ltd.
	By:	/s/ Roderick Wong
		Roderick Wong, Director
	Roderick Wong
	By:	/s/ Roderick Wong
		Roderick Wong, Individually