Sec Form 13D Filing - Nan Fung Group Holdings Ltd @ STEALTH BIOTHERAPEUTICS CORP S

Insider filing report for Changes in Beneficial Ownership

Schedule 13G & 13D forms are used to report a party's ownership of stock which exceeds 5% of a company's total stock issue.
Schedule 13G is a shorter version of Schedule 13D with fewer reporting requirements.

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SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549
SCHEDULE 13D/A (Rule 13d-101)

UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 2)¹

Stealth BioTherapeutics Corp.
(Name of Issuer)

Ordinary Shares, $0.0003 par value
(Title of Class of Securities)

85789A105
(CUSIP Number)

Ben Yip		James T. Lidbury, Esq.
Nan Fung Trinity (HK) Limited		Ropes & Gray
Room 1701-1707 Nan Fung Tower 88 Connaught Road C & 173 Des Voeux Road Central, Hong Kong Tel. +852 3106 7898		44th Floor, One Exchange Square 8 Connaught Place Central, Hong Kong Tel: +852 3664 6521
(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

January 7, 2020
(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition which is the subject of this Schedule 13D, and is filing this schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box. [ ]

Note. Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule 13d-7 for other parties to whom copies are to be sent.

¹The 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 disclosures provided in a prior cover page.

The information required on 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. 85789A105

1.	NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (VOLUNTARY) Nan Fung Group Holdings Limited
2.	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*			(a) [ ] (b) [ ]
3.	SEC USE ONLY
4.	SOURCE OF FUNDS			AF
5.	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)			[ ]
6.	CITIZENSHIP OR PLACE OF ORGANIZATION			British Virgin Islands
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7.	SOLE VOTING POWER	0
		8.	SHARED VOTING POWER	20,240,817*
		9.	SOLE DISPOSITIVE POWER	0
		10.	SHARED DISPOSITIVE POWER	20,240,817*
11.	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON			20,240,817*
12.	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES			[ ]
13.	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)			4.8%**
14.	TYPE OF REPORTING PERSON			CO

* Consists of 20,240,817 Ordinary Shares directly held by Pivotal Beta Limited. See Item 2(a) of this Schedule 13D.

** Based on 420,357,503 Ordinary Shares outstanding following (a) the Issuer’s initial public offering, as reported in the Issuer’s prospectus on Form 424B4 dated February 14, 2019 and filed with the Securities and Exchange Commission (the “SEC”) on February 15, 2019 and (b) the underwriters’ partial exercise of the over-allotment option for such initial public offering on March 4, 2019, as disclosed in the Issuer’s Report on Form 6-K filed with the SEC on March 5, 2019.

CUSIP NO. 85789A105

1.	NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (VOLUNTARY) NF Investment Holdings Limited
2.	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*			(a) [ ] (b) [ ]
3.	SEC USE ONLY
4.	SOURCE OF FUNDS			AF
5.	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)			[ ]
6.	CITIZENSHIP OR PLACE OF ORGANIZATION			British Virgin Islands
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7.	SOLE VOTING POWER	0
		8.	SHARED VOTING POWER	20,240,817*
		9.	SOLE DISPOSITIVE POWER	0
		10.	SHARED DISPOSITIVE POWER	20,240,817*
11.	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON			20,240,817*
12.	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES			[ ]
13.	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)			4.8%**
14.	TYPE OF REPORTING PERSON			CO

* Consists of 20,240,817 Ordinary Shares directly held by Pivotal Beta Limited. See Item 2(a) of this Schedule 13D.

** Based on 420,357,503 Ordinary Shares outstanding following (a) the Issuer’s initial public offering, as reported in the Issuer’s prospectus on Form 424B4 dated February 14, 2019 and filed with the SEC on February 15, 2019 and (b) the underwriters’ partial exercise of the over-allotment option for such initial public offering on March 4, 2019, as disclosed in the Issuer’s Report on Form 6-K filed with the SEC on March 5, 2019.

CUSIP NO. 85789A105

1.	NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (VOLUNTARY) Permwell Management Limited
2.	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*			(a) [ ] (b) [ ]
3.	SEC USE ONLY
4.	SOURCE OF FUNDS			WC
5.	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)			[ ]
6.	CITIZENSHIP OR PLACE OF ORGANIZATION			British Virgin Islands
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7.	SOLE VOTING POWER	0
		8.	SHARED VOTING POWER	0
		9.	SOLE DISPOSITIVE POWER	0
		10.	SHARED DISPOSITIVE POWER	0
11.	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON			0
12.	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
13.	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)			0%*
14.	TYPE OF REPORTING PERSON			CO

* Based on 420,357,503 Ordinary Shares outstanding following (a) the Issuer’s initial public offering, as reported in the Issuer’s prospectus on Form 424B4 dated February 14, 2019 and filed with the SEC on February 15, 2019 and (b) the underwriters’ partial exercise of the over-allotment option for such initial public offering on March 4, 2019, as disclosed in the Issuer’s Report on Form 6-K filed with the SEC on March 5, 2019.

CUSIP NO. 85789A105

1.	NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (VOLUNTARY) Grand Epoch Holdings Limited
2.	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*			(a) [ ] (b) [ ]
3.	SEC USE ONLY
4.	SOURCE OF FUNDS			AF
5.	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)			[ ]
6.	CITIZENSHIP OR PLACE OF ORGANIZATION			British Virgin Islands
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7.	SOLE VOTING POWER	0
		8.	SHARED VOTING POWER	20,240,817*
		9.	SOLE DISPOSITIVE POWER	0
		10.	SHARED DISPOSITIVE POWER	20,240,817*
11.	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON			20,240,817*
12.	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES			[ ]
13.	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)			4.8%**
14.	TYPE OF REPORTING PERSON			CO

* Such Ordinary Shares are directly held by Pivotal Beta Limited. See Item 2(a) of this Schedule 13D.

** Based on 420,357,503 Ordinary Shares outstanding following (a) the Issuer’s initial public offering, as reported in the Issuer’s prospectus on Form 424B4 dated February 14, 2019 and filed with the SEC on February 15, 2019 and (b) the underwriters’ partial exercise of the over-allotment option for such initial public offering on March 4, 2019, as disclosed in the Issuer’s Report on Form 6-K filed with the SEC on March 5, 2019.

CUSIP NO. 85789A105

1.	NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (VOLUNTARY) Eternal Sky Holdings Limited
2.	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*			(a) [ ] (b) [ ]
3.	SEC USE ONLY
4.	SOURCE OF FUNDS			AF
5.	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)			[ ]
6.	CITIZENSHIP OR PLACE OF ORGANIZATION			British Virgin Islands
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7.	SOLE VOTING POWER	0
		8.	SHARED VOTING POWER	20,240,817*
		9.	SOLE DISPOSITIVE POWER	0
		10.	SHARED DISPOSITIVE POWER	20,240,817*
11.	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON			20,240,817*
12.	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES			[ ]
13.	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)			4.8%**
14.	TYPE OF REPORTING PERSON			CO

* Such Ordinary Shares are directly held by Pivotal Beta Limited. See Item 2(a) of this Schedule 13D.

** Based on 420,357,503 Ordinary Shares outstanding following (a) the Issuer’s initial public offering, as reported in the Issuer’s prospectus on Form 424B4 dated February 14, 2019 and filed with the SEC on February 15, 2019 and (b) the underwriters’ partial exercise of the over-allotment option for such initial public offering on March 4, 2019, as disclosed in the Issuer’s Report on Form 6-K filed with the SEC on March 5, 2019.

CUSIP NO. 85789A105

1.	NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (VOLUNTARY) Pivotal Beta Limited
2.	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*			(a) [ ] (b) [ ]
3.	SEC USE ONLY
4.	SOURCE OF FUNDS			WC
5.	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) or 2(e)			[ ]
6.	CITIZENSHIP OR PLACE OF ORGANIZATION			British Virgin Islands
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7.	SOLE VOTING POWER	0
		8.	SHARED VOTING POWER	20,240,817*
		9.	SOLE DISPOSITIVE POWER	20,240,817*
		10.	SHARED DISPOSITIVE POWER	20,240,817*
11.	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON			0
12.	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES			[ ]
13.	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)			4.8%**
14.	TYPE OF REPORTING PERSON			CO

* See Item 2(a) of this Schedule 13D.

** Based on 420,357,503 Ordinary Shares outstanding following (a) the Issuer’s initial public offering, as reported in the Issuer’s prospectus on Form 424B4 dated February 14, 2019 and filed with the SEC on February 15, 2019 and (b) the underwriters’ partial exercise of the over-allotment option for such initial public offering on March 4, 2019, as disclosed in the Issuer’s Report on Form 6-K filed with the SEC on March 5, 2019.

CUSIP NO. 85789A105

SCHEDULE 13D/A

Item 1. Security and Issuer.

Reference is made to the statement on Schedule 13D filed on July 15, 2019 (the “Original Schedule 13D”) as further amended by Amendment No. 1 filed on December 31, 2019 (“Amendment No. 1” and together with the Original Schedule 13D, the “Schedule 13D Filing”) and relates to the Ordinary Shares, $0.0003 par value (the “Shares”), of Stealth BioTherapeutics Corp., a Cayman Islands company (the “Issuer”). The address of the principal executive office of the Issuer is c/o Intertrust Corporate Services (Cayman) Limited, 190 Elgin Avenue, George Town, Grand Cayman, KY1-9005 Cayman Islands.

This Amendment No. 2 (the “Amendment”) hereby amends and supplements the Schedule 13D Filing as described herein. Except as otherwise described herein, the information contained in the Schedule 13D Filing remains in effect. Capitalized terms used but not defined in this Amendment shall have the respective meanings set forth thereto in the Schedule 13D Filing.

Item 2. Identity and Background.

No changes.

Item 3. Source and Amount of Funds or Other Consideration.

No changes.

Item 4. Purpose of Transaction.

No changes.

Item 5. Interest in Securities of the Issuer.

(a) - (b) The information requested by this paragraph is incorporated herein by reference to the cover pages to this Amendment and Item 2(a).

(c) Information concerning transactions effected by the Reporting Person(s) during the past sixty days is set forth in Exhibit B hereto and is incorporated herein by reference. All of the transactions listed hereto were effected in the open market through various brokerage entities and in the normal course of portfolio management.

(d) Except as described in this statement, no person has the power to direct the receipt of dividends on or the proceeds of sales of, the Shares owned by the Reporting Persons.

(e) Following the closing of the sales described herein, the Reporting Persons cease to be the beneficial owners of more than five percent of the Shares.

Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer.

No changes.

Item 7. Material to be Filed as Exhibits.

Exhibit A - Joint Filing Agreement (incorporated by reference to Exhibit A to the Reporting Persons’ Schedule 13D filed on July 15, 2019)

Exhibit B - Transactions in the ADSs of the Issuer During the Last 60 Days

CUSIP NO. 85789A105

SIGNATURES

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

Dated: January 9, 2020	NAN FUNG GROUP HOLDINGS LIMITED

	By:	/s/ Tang Chun Wai Nelson
	Name:	Tang Chun Wai Nelson
	Title:	Director


	NF INVESTMENT HOLDINGS LIMITED

	By:	/s/ Tang Chun Wai Nelson
	Name:	Tang Chun Wai Nelson
	Title:	Director


	PERMWELL MANAGEMENT LIMITED

	By:	/s/ Tang Chun Wai Nelson
	Name:	Tang Chun Wai Nelson
	Title:	Director


	GRAND EPOCH HOLDINGS LIMITED

	By:	/s/ Tang Chun Wai Nelson
	Name:	Tang Chun Wai Nelson
	Title:	Director


	ETERNAL SKY HOLDINGS LIMITED

	By:	/s/ Tang Chun Wai Nelson
	Name:	Tang Chun Wai Nelson
	Title:	Director


	PIVOTAL BETA LIMITED

	By:	/s/ Tang Chun Wai Nelson
	Name:	Tang Chun Wai Nelson
	Title:	Director

CUSIP NO. 85789A105

Exhibit B

TRANSACTIONS IN THE ADSs OF THE ISSUER

DURING THE LAST 60 DAYS

______________________________

The following table sets forth all the transactions in the ADSs effected in the past sixty days by the Reporting Person(s). All such transaction were effected in the open market through brokers and the price per share is net of commissions.

Reporting Person	Trade Date	ADSs Sold¹	Price Per ADS ($)

Permwell Management Limited	1/2/2020	101,662	$3.07²

Permwell Management Limited	1/3/2020	81,112	$2.95³

Permwell Management Limited	1/6/2020	56,592	$3.00⁴
Permwell Management Limited	1/7/2020	93,967	$3.15⁵

¹ Each ADS represents twelve Ordinary Shares.

² This is the weighted average sales price. Such ADSs were sold in multiple transactions at prices ranging from $3.00 to $3.43. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of ADSs sold at each separate price within each such range.

³ This is the weighted average sales price. Such ADSs were sold in multiple transactions at prices ranging from $2.73 to $3.07. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of ADSs sold at each separate price within each such range.

⁴ This is the weighted average sales price. Such ADSs were sold in multiple transactions at prices ranging from $2.93 to $3.07. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of ADSs sold at each separate price within each such range.

⁵ This is the weighted average sales price. Such ADSs were sold in multiple transactions at prices ranging from $3.01 to $3.31. The Reporting Person undertakes to provide to the staff of the Securities and Exchange Commission, upon request, full information regarding the number of ADSs sold at each separate price within each such range.

Sec Form 13D Filing - Nan Fung Group Holdings Ltd filing for STEALTH BIOTHERAPEUTICS CORP S (MITO) - 2020-01-09