0001104659-21-005833.txt : 20210120 0001104659-21-005833.hdr.sgml : 20210120 20210120161617 ACCESSION NUMBER: 0001104659-21-005833 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210119 FILED AS OF DATE: 20210120 DATE AS OF CHANGE: 20210120 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: GILL DAVID N CENTRAL INDEX KEY: 0001106519 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-38650 FILM NUMBER: 21538947 MAIL ADDRESS: STREET 1: C/O NXSTAGE MEDICAL INC. (NXTM) STREET 2: 439 SOUTH UNION STREET, 5TH FLOOR CITY: LAWRENCE STATE: MA ZIP: 01843 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Y-mAbs Therapeutics, Inc. CENTRAL INDEX KEY: 0001722964 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 474619612 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 750 THIRD AVENUE STREET 2: 9TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10017 BUSINESS PHONE: 212-847-9841 MAIL ADDRESS: STREET 1: 750 THIRD AVENUE STREET 2: 9TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10017 4 1 tm211939-2_4.xml OWNERSHIP DOCUMENT X0306 4 2021-01-19 0 0001722964 Y-mAbs Therapeutics, Inc. YMAB 0001106519 GILL DAVID N C/O Y-MABS THERAPEUTICS, INC. 230 PARK AVENUE SUITE 3350 NEW YORK NY 10169 1 0 0 0 Common Stock 2021-01-19 4 M 0 2000 11.16 A 2000 D Common Stock 2021-01-19 4 S 0 2000 46.5226 D 0 D Non-Employee Stock Option (right to buy) 11.16 2021-01-19 4 M 0 2000 0 D 2028-04-24 Common stock 2000 24000 D The option exercise and sale transaction reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person. This transaction was executed in multiple trades at prices ranging from $45.9500 to $47.6800. The price reported reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected. Stock option granted to the Reporting Person as a non-employee director pursuant to the 2015 Equity Incentive Plan of Y-mAbs Therapeutics, Inc. The stock option was (a) granted on April 24, 2018 pursuant to the 2015 Equity Incentive Plan of Y-mAbs Therapeutics, Inc., and (b) represents the right to purchase a total of 32,000 shares of common stock; and (c) vests and becomes exercisable in equal monthly installments until the third anniversary of the date of grant subject to continued service through such dates and unless vesting is accelerated pursuant to the terms of the grant. /s/ David N Gill 2021-01-20