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
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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*
ORBIMED ADVISORS LLC

(Last) (First) (Middle)
601 LEXINGTON AVENUE, 54TH FLOOR

(Street)
NEW YORK NY 10022

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
PIERIS PHARMACEUTICALS, INC. [ PIRS ]
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)
12/18/2017
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
Common Stock 12/18/2017 M 27,241 A $2 7,221,463 I See Footnotes(14)(16)
Common Stock 12/18/2017 M 259 A $2 65,657 I See Footnotes(15)(16)
Common Stock 12/18/2017 M 5,227 A $3 7,226,690 I See Footnotes(14)(16)
Common Stock 12/18/2017 M 50 A $3 65,707 I See Footnotes(15)(16)
Common Stock 12/18/2017 M 6,654 A $2.62 7,233,344 I See Footnotes(14)(16)
Common Stock 12/18/2017 M 63 A $2.62 65,770 I See Footnotes(15)(16)
Common Stock 12/18/2017 M 8,717 A $1.94 7,242,061 I See Footnotes(14)(16)
Common Stock 12/18/2017 M 83 A $1.94 65,853 I See Footnotes(15)(16)
Common Stock 12/18/2017 M 10,180 A $1.62 7,252,241 I See Footnotes(14)(16)
Common Stock 12/18/2017 M 97 A $1.62 65,950 I See Footnotes(15)(16)
Common Stock 12/18/2017 M 19,811 A $1.59 7,272,052 I See Footnotes(14)(16)
Common Stock 12/18/2017 M 189 A $1.59 66,139 I See Footnotes(15)(16)
Common Stock 12/18/2017 M 8,097 A $2.05 7,280,149 I See Footnotes(14)(16)
Common Stock 12/18/2017 M 77 A $2.05 66,216 I See Footnotes(15)(16)
Common Stock 12/18/2017 M 9,642 A $1.73 7,289,791 I See Footnotes(14)(16)
Common Stock 12/18/2017 M 92 A $1.73 66,308 I See Footnotes(15)(16)
Common Stock 12/18/2017 M 10,182 A $1.64 7,299,973 I See Footnotes(14)(16)
Common Stock 12/18/2017 M 97 A $1.64 66,405 I See Footnotes(15)(16)
Common Stock 12/18/2017 M 14,858 A $2.01 7,314,831 I See Footnotes(14)(16)
Common Stock 12/18/2017 M 142 A $2.01 66,547 I See Footnotes(15)(16)
Common Stock 12/18/2017 M 10,216 A $2.01 7,325,047 I See Footnotes(14)(16)
Common Stock 12/18/2017 M 97 A $2.01 66,644 I See Footnotes(15)(16)
Common Stock 12/18/2017 M 10,447 A $2.32 7,335,494 I See Footnotes(14)(16)
Common Stock 12/18/2017 M 99 A $2.32 66,743 I See Footnotes(15)(16)
Common Stock 12/18/2017 M 4,971 A $5.64 7,340,465 I See Footnotes(14)(16)
Common Stock 12/18/2017 M 47 A $5.64 66,790 I See Footnotes(15)(16)
Common Stock 12/18/2017 S 146,243 D $5.7 7,194,222 I See Footnotes(14)(16)
Common Stock 12/18/2017 S 1,392 D $5.7 65,398 I See Footnotes(15)(16)
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
Stock Option (right to buy) $2 12/18/2017 M 27,241 (1) 02/15/2018 Common Stock 27,241 $0 0 I See Footnotes(14)(16)
Stock Option (right to buy) $2 12/18/2017 M 259 (1) 02/15/2018 Common Stock 259 $0 0 I See Footnotes(15)(16)
Stock Option (right to buy) $3 12/18/2017 M 5,227 (2) 02/15/2018 Common Stock 5,227 $0 0 I See Footnotes(14)(16)
Stock Option (right to buy) $3 12/18/2017 M 50 (2) 02/15/2018 Common Stock 50 $0 0 I See Footnotes(15)(16)
Stock Option (right to buy) $2.62 12/18/2017 M 6,654 (3) 02/15/2018 Common Stock 6,654 $0 0 I See Footnotes(14)(16)
Stock Option (right to buy) $2.62 12/18/2017 M 63 (3) 02/15/2018 Common Stock 63 $0 0 I See Footnotes(15)(16)
Stock Option (right to buy) $1.94 12/18/2017 M 8,717 (4) 02/15/2018 Common Stock 8,717 $0 0 I See Footnotes(14)(16)
Stock Option (right to buy) $1.94 12/18/2017 M 83 (4) 02/15/2018 Common Stock 83 $0 0 I See Footnotes(15)(16)
Stock Option (right to buy) $1.62 12/18/2017 M 10,180 (5) 02/15/2018 Common Stock 10,180 $0 0 I See Footnotes(14)(16)
Stock Option (right to buy) $1.62 12/18/2017 M 97 (5) 02/15/2018 Common Stock 97 $0 0 I See Footnotes(15)(16)
Stock Option (right to buy) $1.59 12/18/2017 M 19,811 (6) 02/15/2018 Common Stock 19,811 $0 0 I See Footnotes(14)(16)
Stock Option (right to buy) $1.59 12/18/2017 M 189 (6) 02/15/2018 Common Stock 189 $0 0 I See Footnotes(15)(16)
Stock Option (right to buy) $2.05 12/18/2017 M 8,097 (7) 02/15/2018 Common Stock 8,097 $0 0 I See Footnotes(14)(16)
Stock Option (right to buy) $2.05 12/18/2017 M 77 (7) 02/15/2018 Common Stock 77 $0 0 I See Footnotes(15)(16)
Stock Option (right to buy) $1.73 12/18/2017 M 9,642 (8) 02/15/2018 Common Stock 9,642 $0 0 I See Footnotes(14)(16)
Stock Option (right to buy) $1.73 12/18/2017 M 92 (8) 02/15/2018 Common Stock 92 $0 0 I See Footnotes(15)(16)
Stock Option (right to buy) $1.64 12/18/2017 M 10,182 (9) 02/15/2018 Common Stock 10,182 $0 0 I See Footnotes(14)(16)
Stock Option (right to buy) $1.64 12/18/2017 M 97 (9) 02/15/2018 Common Stock 97 $0 0 I See Footnotes(15)(16)
Stock Option (right to buy) $2.01 12/18/2017 M 14,858 (10) 02/15/2018 Common Stock 14,858 $0 0 I See Footnotes(14)(16)
Stock Option (right to buy) $2.01 12/18/2017 M 142 (10) 02/15/2018 Common Stock 142 $0 0 I See Footnotes(15)(16)
Stock Option (right to buy) $2.01 12/18/2017 M 10,216 (11) 02/15/2018 Common Stock 10,216 $0 0 I See Footnotes(14)(16)
Stock Option (right to buy) $2.01 12/18/2017 M 97 (11) 02/15/2018 Common Stock 97 $0 0 I See Footnotes(15)(16)
Stock Option (right to buy) $2.32 12/18/2017 M 10,447 (12) 02/15/2018 Common Stock 10,447 $0 0 I See Footnotes(14)(16)
Stock Option (right to buy) $2.32 12/18/2017 M 99 (12) 02/15/2018 Common Stock 99 $0 0 I See Footnotes(15)(16)
Stock Option (right to buy) $5.64 12/18/2017 M 4,971 (13) 02/15/2018 Common Stock 4,971 $0 0 I See Footnotes(14)(16)
Stock Option (right to buy) $5.64 12/18/2017 M 47 (13) 02/15/2018 Common Stock 47 $0 0 I See Footnotes(15)(16)
1. Name and Address of Reporting Person*
ORBIMED ADVISORS LLC

(Last) (First) (Middle)
601 LEXINGTON AVENUE, 54TH FLOOR

(Street)
NEW YORK NY 10022

(City) (State) (Zip)
1. Name and Address of Reporting Person*
OrbiMed Capital GP III LLC

(Last) (First) (Middle)
601 LEXINGTON AVENUE, 54TH FLOOR

(Street)
NEW YORK NY 10022

(City) (State) (Zip)
1. Name and Address of Reporting Person*
ISALY SAMUEL D

(Last) (First) (Middle)
601 LEXINGTON AVENUE, 54TH FLOOR

(Street)
NEW YORK NY 10022

(City) (State) (Zip)
Explanation of Responses:
1. The stock options were included in an award to Chau Khuong, an employee of the Reporting Persons, made on December 17, 2014 for services as a director of the Issuer. The award included stock options relating to a total of 30,000 shares of the Issuer's Common Stock and was scheduled to vest quarterly over three years beginning March 31, 2015, with 100% of the total shares vested and exercisable on March 31, 2018, subject to the director's provision of service to the issuer on each vesting date. Mr. Khuong is no longer a director of the Issuer.
2. The stock options were included in an award to Chau Khuong, an employee of the Reporting Persons, made on April 30, 2015 for services as a director of the Issuer. The award included stock options relating to a total of 5,277 shares of the Issuer's Common Stock and was vested and exercisable on April 30, 2015. Mr. Khuong is no longer a director of the Issuer.
3. The stock options were included in an award to Chau Khuong, an employee of the Reporting Persons, made on July 15, 2015 for services as a director of the Issuer. The award included stock options relating to a total of 6,717 shares of the Issuer's Common Stock and was vested and exercisable on July 15, 2015. Mr. Khuong is no longer a director of the Issuer.
4. The stock options were included in an award to Chau Khuong, an employee of the Reporting Persons, made on October 15, 2015 for services as a director of the Issuer. The award included stock options relating to a total of 8,800 shares of the Issuer's Common Stock and was vested and exercisable on October 15, 2015. Mr. Khuong is no longer a director of the Issuer.
5. The stock options were included in an award to Chau Khuong, an employee of the Reporting Persons, made on January 15, 2016 for services as a director of the Issuer. The award included stock options relating to a total of 10,277 shares of the Issuer's Common Stock and was vested and exercisable on January 15, 2016. Mr. Khuong is no longer a director of the Issuer.
6. The stock options were included in an award to Chau Khuong, an employee of the Reporting Persons, made on February 16, 2016 for services as a director of the Issuer. The award included stock options relating to a total of 20,000 shares of the Issuer's Common Stock and was scheduled to vest in four equal installments on each of March 31, 2016, June 30, 2016, September 30, 2016 and December 31, 2016 with 100% of the total shares vested and exercisable on December 31, 2016, subject to the director's provision of service to the issuer on each vesting date. Mr. Khuong is no longer a director of the Issuer.
7. The stock options were included in an award to Chau Khuong, an employee of the Reporting Persons, made on April 27, 2016 for services as a director of the Issuer. The award included stock options relating to a total of 8,174 shares of the Issuer's Common Stock and was vested and exercisable on April 27, 2016. Mr. Khuong is no longer a director of the Issuer.
8. The stock options were included in an award to Chau Khuong, an employee of the Reporting Persons, made on July 25, 2016 for services as a director of the Issuer. The award included stock options relating to a total of 9,734 shares of the Issuer's Common Stock and was vested and exercisable on July 25, 2016. Mr. Khuong is no longer a director of the Issuer.
9. The stock options were included in an award to Chau Khuong, an employee of the Reporting Persons, made on October 25, 2016 for services as a director of the Issuer. The award included stock options relating to a total of 10,279 shares of the Issuer's Common Stock and was vested and exercisable on October 25, 2016. Mr. Khuong is no longer a director of the Issuer.
10. The stock options were included in an award to Chau Khuong, an employee of the Reporting Persons, made on January 25, 2017 for services as a director of the Issuer. The award included stock options relating to a total of 20,000 shares of the Issuer's Common Stock and was scheduled to vest in four equal installments on each of March 31, 2017, June 30, 2017, September 30, 2017 and December 31, 2017 with 100% of the total shares vested and exercisable on December 31, 2017, subject to the director's provision of service to the issuer on each vesting date. Mr. Khuong is no longer a director of the Issuer.
11. The stock options were included in an award to Chau Khuong, an employee of the Reporting Persons, made on January 25, 2017 for services as a director of the Issuer. The award included stock options relating to a total of 10,313 shares of the Issuer's Common Stock and was vested and exercisable on January 25, 2017. Mr. Khuong is no longer a director of the Issuer.
12. The stock options were included in an award to Chau Khuong, an employee of the Reporting Persons, made on April 25, 2017 for services as a director of the Issuer. The award included stock options relating to a total of 10,546 shares of the Issuer's Common Stock and was vested and exercisable on April 25, 2017. Mr. Khuong is no longer a director of the Issuer.
13. The stock options were included in an award to Chau Khuong, an employee of the Reporting Persons, made on July 25, 2017 for services as a director of the Issuer. The award included stock options relating to a total of 5,018 shares of the Issuer's Common Stock and was vested and exercisable on July 25, 2017. Mr. Khuong is no longer a director of the Issuer.
14. These Shares are held of record by OrbiMed Private Investments III, LP ("OPI III"). OrbiMed Capital GP III LLC ("GP III") is the general partner of OPI III, and OrbiMed Advisors LLC ("Advisors") is the managing member of GP III. Samuel D. Isaly ("Isaly"), a natural person, is the managing member of and owner of a controlling interest in Advisors. By virtue of such relationships, GP III, Advisors and Isaly may be deemed to have voting and investment power over the securities held by OPI III and as a result may be deemed to have beneficial ownership over such securities.
15. These Shares are held of record by OrbiMed Associates III, LP ("Associates III"). Advisors is the general partner of Associates III. Isaly is the managing member of and owner of a controlling interest in Advisors. By virtue of such relationships, Advisors and Isaly may be deemed to have voting and investment power over the securities held by Associates III and as a result may be deemed to have beneficial ownership over such securities.
16. This report on Form 4 is jointly filed by GP III, Advisors, and Isaly. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its or his pecuniary interest therein, if any. This report shall not be deemed an admission that any of the Reporting Persons is a beneficial owner for the purpose of Section 16 of the Exchange Act, or for any other purpose.
/s/ Samuel D. Isaly 12/20/2017
** Signature of Reporting Person Date
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* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
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