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Protagonist Therapeutics Inc (PTGX): Adage Capital Management Reveals 9.69% Stake

Phil Gross (pictured below) and Robert Atchinson‘s Adage Capital Management recently made a new addition to its portfolio, initiating a position in Protagonist Therapeutics Inc (NASDAQ:PTGX), which was revealed in a new 13G filing with the Securities and Exchange Commission. The fund has acquired 1.58 million common shares of the newly-public company, which represent 9.69% of its outstanding stock.

Protagonist Therapeutics is a clinical-stage biopharmaceutical company that just recently went public; the company is engaged in the development and production of peptide-based new chemical entities to help treat unresolved medical issues. Since the company started trading on August 12, its stock has gained 0.85%. There are no other known shareholders of the stock among the funds in our database at this time.

Phill Gross

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You can access the original SEC filing by clicking here.

Ownership Summary Table

Name Sole Voting Power Shared Voting Power Sole Dispositive Power Shared Dispositive Power Aggregate Amount Owned Power Percent of Class
Adage Capital Partners 0 1,581,076 0 1,581,076 1,581,076 9.69%
Adage Capital Partners GP 0 1,581,076 0 1,581,076 1,581,076 9.69%
Adage Capital Advisors 0 1,581,076 0 1,581,076 1,581,076 9.69%
Robert Atchinson 0 1,581,076 0 1,581,076 1,581,076 9.69%
Phillip Gross 0 1,581,076 0 1,581,076 1,581,076 9.69%

Phill Gross And Robert Atchinson
Phill Gross And Robert Atchinson
Adage Capital Management

Page 1 of 12 – SEC Filing

Washington, D.C. 20549
Under the Securities Exchange Act of 1934
(Amendment No. )*

Therapeutics, Inc.

(Name of Issuer)

Common Stock,
$0.00001 par value per share

(Title of Class of Securities)


(CUSIP Number)

August 11,

(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)
(Page 1 of 12 Pages)


*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).