Filing Details

The remainder of this cover page shall be filled out for a reporting persons 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.

CUSIP No. 74587V107

  Names of Reporting Persons

  Alger Associates, Inc. 13-3017981

  Check the Appropriate Box if a Member of a Group (See Instructions)

  (a)  ☐        (b)  ☐

  SEC Use Only

  Citizenship or Place of Organization

  New York

Number of

Shares

 Beneficially 

Owned by

Each

Reporting

Person

With

  Sole Voting Power

  890,396

  Shared Voting Power

  0

  Sole Dispositive Power

  890,396

  Shared Dispositive Power

  0

  Aggregate Amount Beneficially Owned by Each Reporting Person

  890,396

  Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)

  ☐

  Percent of Class Represented by Amount in Row (9)

  2.18%

Type of Reporting Person (See Instructions)

  HC

Name of Issuer

Puma Biotechnology, Inc.

Address of Issuers Principal Executive Offices

10880 Wilshire Boulevard, Suite 2150

Los Angeles, CA 90024

Name of Person Filing

Alger Associates, Inc.

Address of Principal Business Office or, if none, Residence

360 Park Avenue South, New York, NY 10010

Citizenship

New York

Title of Class of Securities

Common Stock

CUSIP Number

74587V107

☐   Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);

☐   Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);

☐   Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);

☐   Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);

☐   An investment adviser in accordance with §240.13d-1(b)(1)(ii)(E);

☐   An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F);

☒   A parent holding company or control person in accordance with §240.13d-1(b)(1)(ii)(G);

☐   A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

☐   A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

☐   A non-U.S. institution in accordance with § 240.13d1(b)(1)(ii)(J);

☐   Group, in accordance with § 240.13d1(b)(1)(ii)(K). If filing as a non-U.S. institution in accordance with § 240.13d1(b)(1)(ii)(J), please specify the type of institution:                                                 

Amount beneficially owned:

890,396

Percent of class:

2.18%

Number of shares as to which the person has:

Sole power to vote or to direct the vote

890,396

Shared power to vote or to direct the vote

0

Sole power to dispose or to direct the disposition of

890,396

Shared power to dispose or to direct the disposition of

0

Ownership of Five Percent or Less of a Class

Ownership of More than Five Percent on Behalf of Another Person

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person

Identification and Classification of Members of the Group

Notice of Dissolution of Group

Certification

/s/ Hal Liebes